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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2023-07-29 00:40:58 +03:00
parent b1dbd99ce2
commit 6f6f850af6
84 changed files with 1154 additions and 4521 deletions
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41
broker/broker.go
View File

@ -5,12 +5,12 @@ import (
"context"
"errors"
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/options"
)
// DefaultBroker default memory broker
var DefaultBroker Broker // = NewBroker()
var DefaultBroker Broker = NewBroker()
var (
// ErrNotConnected returns when broker used but not connected yet
@ -26,7 +26,7 @@ type Broker interface {
// Name returns broker instance name
Name() string
// Init initilize broker
Init(opts ...Option) error
Init(opts ...options.Option) error
// Options returns broker options
Options() Options
// Address return configured address
@ -35,12 +35,10 @@ type Broker interface {
Connect(ctx context.Context) error
// Disconnect disconnect from broker
Disconnect(ctx context.Context) error
// NewMessage creates new broker message
NewMessage(endpoint string, req interface{}, opts ...MessageOption) Message
// Publish message to broker topic
Publish(ctx context.Context, msg interface{}, opts ...PublishOption) error
// Publish message, msg can be single broker.Message or []broker.Message
Publish(ctx context.Context, msg interface{}, opts ...options.Option) error
// Subscribe subscribes to topic message via handler
Subscribe(ctx context.Context, topic string, handler interface{}, opts ...SubscribeOption) (Subscriber, error)
Subscribe(ctx context.Context, topic string, handler interface{}, opts ...options.Option) (Subscriber, error)
// String type of broker
String() string
}
@ -49,9 +47,11 @@ type Broker interface {
type Message interface {
// Context for the message
Context() context.Context
// Topic returns event topic
// Topic
Topic() string
// Body returns broker message
// Header returns message headers
Header() metadata.Metadata
// Body returns broker message may be []byte slice or some go struct
Body() interface{}
// Ack acknowledge message
Ack() error
@ -60,21 +60,6 @@ type Message interface {
Error() error
}
// RawMessage is used to transfer data
type RawMessage struct {
// Header contains message metadata
Header metadata.Metadata
// Body contains message body
Body codec.RawMessage
}
// NewMessage create broker message with topic filled
func NewRawMessage(topic string) *RawMessage {
m := &RawMessage{Header: metadata.New(2)}
m.Header.Set(metadata.HeaderTopic, topic)
return m
}
// Subscriber is a convenience return type for the Subscribe method
type Subscriber interface {
// Options returns subscriber options
@ -84,3 +69,9 @@ type Subscriber interface {
// Unsubscribe from topic
Unsubscribe(ctx context.Context) error
}
// MessageHandler func signature for single message processing
type MessageHandler func(Message) error
// MessagesHandler func signature for batch message processing
type MessagesHandler func([]Message) error

30
broker/context.go
View File

@ -22,33 +22,3 @@ func NewContext(ctx context.Context, s Broker) context.Context {
}
return context.WithValue(ctx, brokerKey{}, s)
}
// SetSubscribeOption returns a function to setup a context with given value
func SetSubscribeOption(k, v interface{}) SubscribeOption {
return func(o *SubscribeOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetPublishOption returns a function to setup a context with given value
func SetPublishOption(k, v interface{}) PublishOption {
return func(o *PublishOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

33
broker/context_test.go
View File

@ -37,36 +37,3 @@ func TestNewNilContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetSubscribeOption(t *testing.T) {
type key struct{}
o := SetSubscribeOption(key{}, "test")
opts := &SubscribeOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetSubscribeOption not works")
}
}
func TestSetPublishOption(t *testing.T) {
type key struct{}
o := SetPublishOption(key{}, "test")
opts := &PublishOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetPublishOption not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

151
broker/memory.go
View File

@ -1,20 +1,23 @@
//go:build ignore
package broker
import (
"context"
"fmt"
"sync"
"time"
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/semconv"
maddr "go.unistack.org/micro/v4/util/addr"
"go.unistack.org/micro/v4/util/id"
mnet "go.unistack.org/micro/v4/util/net"
"go.unistack.org/micro/v4/util/rand"
)
type memoryBroker struct {
type MemoryBroker struct {
subscribers map[string][]*memorySubscriber
addr string
opts Options
@ -22,15 +25,15 @@ type memoryBroker struct {
connected bool
}
func (m *memoryBroker) Options() Options {
func (m *MemoryBroker) Options() Options {
return m.opts
}
func (m *memoryBroker) Address() string {
func (m *MemoryBroker) Address() string {
return m.addr
}
func (m *memoryBroker) Connect(ctx context.Context) error {
func (m *MemoryBroker) Connect(ctx context.Context) error {
m.Lock()
defer m.Unlock()
@ -54,30 +57,33 @@ func (m *memoryBroker) Connect(ctx context.Context) error {
return nil
}
func (m *memoryBroker) Disconnect(ctx context.Context) error {
func (m *MemoryBroker) Disconnect(ctx context.Context) error {
m.Lock()
defer m.Unlock()
if !m.connected {
return nil
}
select {
case <-ctx.Done():
return ctx.Err()
default:
if m.connected {
m.connected = false
}
}
return nil
}
func (m *memoryBroker) Init(opts ...Option) error {
func (m *MemoryBroker) Init(opts ...options.Option) error {
var err error
for _, o := range opts {
o(&m.opts)
if err = o(&m.opts); err != nil {
return err
}
}
return nil
}
func (m *memoryBroker) NewMessage(endpoint string, req interface{}, opts ...MessageOption) Message {
return &memoryMessage{}
}
func (m *memoryBroker) Publish(ctx context.Context, message interface{}, opts ...PublishOption) error {
func (m *MemoryBroker) Publish(ctx context.Context, message interface{}, opts ...options.Option) error {
m.RLock()
if !m.connected {
m.RUnlock()
@ -92,30 +98,34 @@ func (m *memoryBroker) Publish(ctx context.Context, message interface{}, opts ..
return ctx.Err()
default:
options := NewPublishOptions(opts...)
var msgs []*memoryMessage
var msgs []Message
switch v := message.(type) {
case *memoryMessage:
msgs = []*memoryMessage{v}
case []*memoryMessage:
case []Message:
msgs = v
case Message:
msgs = append(msgs, v)
default:
return ErrInvalidMessage
}
msgTopicMap := make(map[string][]*memoryMessage)
for _, msg := range msgs {
p := &memoryMessage{opts: options}
/*
if mb, ok := msg.Body().(*codec.Frame); ok {
p.message = v.Body
p.topic, _ = msg.Header().Get(metadata.HeaderTopic)
if v, ok := msg.Body().(*codec.Frame); ok {
p.body = msg.Body()
} else if len(m.opts.Codecs) == 0 {
p.body = msg.Body()
} else {
p.topic, _ = v.Header.Get(metadata.HeaderTopic)
p.message, err = m.opts.Codec.Marshal(v)
cf, ok := m.opts.Codecs[options.ContentType]
if !ok {
return fmt.Errorf("%s: %s", codec.ErrUnknownContentType, options.ContentType)
}
p.body, err = cf.Marshal(v)
if err != nil {
return err
}
}
*/
msgTopicMap[msg.Topic()] = append(msgTopicMap[p.topic], p)
msgTopicMap[p.topic] = append(msgTopicMap[p.topic], p)
}
eh := m.opts.ErrorHandler
@ -123,30 +133,57 @@ func (m *memoryBroker) Publish(ctx context.Context, message interface{}, opts ..
for t, ms := range msgTopicMap {
ts := time.Now()
m.opts.Meter.Counter(PublishMessageInflight, "endpoint", t).Add(len(ms))
m.opts.Meter.Counter(SubscribeMessageInflight, "endpoint", t).Add(len(ms))
m.opts.Meter.Counter(semconv.PublishMessageInflight, "endpoint", t).Add(len(ms))
m.opts.Meter.Counter(semconv.SubscribeMessageInflight, "endpoint", t).Add(len(ms))
m.RLock()
subs, ok := m.subscribers[t]
m.RUnlock()
if !ok {
m.opts.Meter.Counter(PublishMessageTotal, "endpoint", t, "status", "failure").Add(len(ms))
m.opts.Meter.Counter(PublishMessageInflight, "endpoint", t).Add(-len(ms))
m.opts.Meter.Counter(SubscribeMessageInflight, "endpoint", t).Add(-len(ms))
m.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", t, "status", "failure").Add(len(ms))
m.opts.Meter.Counter(semconv.PublishMessageInflight, "endpoint", t).Add(-len(ms))
m.opts.Meter.Counter(semconv.SubscribeMessageInflight, "endpoint", t).Add(-len(ms))
continue
}
m.opts.Meter.Counter(PublishMessageTotal, "endpoint", t, "status", "success").Add(len(ms))
m.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", t, "status", "success").Add(len(ms))
for _, sub := range subs {
if sub.opts.ErrorHandler != nil {
eh = sub.opts.ErrorHandler
}
for _, p := range ms {
if err = sub.handler(p); err != nil {
m.opts.Meter.Counter(SubscribeMessageTotal, "endpoint", t, "status", "failure").Inc()
switch mh := sub.handler.(type) {
case MessagesHandler:
mhs := make([]Message, 0, len(ms))
for _, m := range ms {
mhs = append(mhs, m)
}
if err = mh(mhs); err != nil {
m.opts.Meter.Counter(semconv.SubscribeMessageTotal, "endpoint", t, "status", "failure").Add(len(ms))
if eh != nil {
_ = eh(p)
switch meh := eh.(type) {
case MessagesHandler:
_ = meh(mhs)
case MessageHandler:
for _, me := range mhs {
_ = meh(me)
}
}
} else if m.opts.Logger.V(logger.ErrorLevel) {
m.opts.Logger.Error(m.opts.Context, err.Error())
}
}
case MessageHandler:
for _, p := range ms {
if err = mh(p); err != nil {
m.opts.Meter.Counter(semconv.SubscribeMessageTotal, "endpoint", t, "status", "failure").Inc()
if eh != nil {
switch meh := eh.(type) {
case MessageHandler:
_ = meh(p)
case MessagesHandler:
_ = meh([]Message{p})
}
} else if m.opts.Logger.V(logger.ErrorLevel) {
m.opts.Logger.Error(m.opts.Context, err.Error())
}
@ -154,24 +191,25 @@ func (m *memoryBroker) Publish(ctx context.Context, message interface{}, opts ..
if sub.opts.AutoAck {
if err = p.Ack(); err != nil {
m.opts.Logger.Errorf(m.opts.Context, "ack failed: %v", err)
m.opts.Meter.Counter(SubscribeMessageTotal, "endpoint", t, "status", "failure").Inc()
m.opts.Meter.Counter(semconv.SubscribeMessageTotal, "endpoint", t, "status", "failure").Inc()
} else {
m.opts.Meter.Counter(SubscribeMessageTotal, "endpoint", t, "status", "success").Inc()
m.opts.Meter.Counter(semconv.SubscribeMessageTotal, "endpoint", t, "status", "success").Inc()
}
} else {
m.opts.Meter.Counter(SubscribeMessageTotal, "endpoint", t, "status", "success").Inc()
m.opts.Meter.Counter(semconv.SubscribeMessageTotal, "endpoint", t, "status", "success").Inc()
}
}
m.opts.Meter.Counter(semconv.PublishMessageInflight, "endpoint", t).Add(-1)
m.opts.Meter.Counter(semconv.SubscribeMessageInflight, "endpoint", t).Add(-1)
}
}
m.opts.Meter.Counter(PublishMessageInflight, "endpoint", t).Add(-1)
m.opts.Meter.Counter(SubscribeMessageInflight, "endpoint", t).Add(-1)
}
}
te := time.Since(ts)
m.opts.Meter.Summary(PublishMessageLatencyMicroseconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Histogram(PublishMessageDurationSeconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Summary(SubscribeMessageLatencyMicroseconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Histogram(SubscribeMessageDurationSeconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Summary(semconv.PublishMessageLatencyMicroseconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Histogram(semconv.PublishMessageDurationSeconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Summary(semconv.SubscribeMessageLatencyMicroseconds, "endpoint", t).Update(te.Seconds())
m.opts.Meter.Histogram(semconv.SubscribeMessageDurationSeconds, "endpoint", t).Update(te.Seconds())
}
}
@ -179,7 +217,7 @@ func (m *memoryBroker) Publish(ctx context.Context, message interface{}, opts ..
return nil
}
func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler interface{}, opts ...SubscribeOption) (Subscriber, error) {
func (m *MemoryBroker) Subscribe(ctx context.Context, topic string, handler interface{}, opts ...options.Option) (Subscriber, error) {
m.RLock()
if !m.connected {
m.RUnlock()
@ -224,11 +262,11 @@ func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler inte
return sub, nil
}
func (m *memoryBroker) String() string {
func (m *MemoryBroker) String() string {
return "memory"
}
func (m *memoryBroker) Name() string {
func (m *MemoryBroker) Name() string {
return m.opts.Name
}
@ -236,6 +274,7 @@ type memoryMessage struct {
err error
body interface{}
topic string
header metadata.Metadata
opts PublishOptions
ctx context.Context
}
@ -244,6 +283,10 @@ func (m *memoryMessage) Topic() string {
return m.topic
}
func (m *memoryMessage) Header() metadata.Metadata {
return m.header
}
func (m *memoryMessage) Body() interface{} {
return m.body
}
@ -283,8 +326,8 @@ func (m *memorySubscriber) Unsubscribe(ctx context.Context) error {
}
// NewBroker return new memory broker
func NewBroker(opts ...Option) *memoryBroker {
return &memoryBroker{
func NewBroker(opts ...options.Option) *MemoryBroker {
return &MemoryBroker{
opts: NewOptions(opts...),
subscribers: make(map[string][]*memorySubscriber),
}

40
broker/memory_test.go
View File

@ -19,29 +19,35 @@ func TestMemoryBatchBroker(t *testing.T) {
topic := "test"
count := 10
fn := func(evts Events) error {
return evts.Ack()
fn := func(evts []Message) error {
var err error
for _, evt := range evts {
if err = evt.Ack(); err != nil {
return err
}
}
return nil
}
sub, err := b.BatchSubscribe(ctx, topic, fn)
sub, err := b.Subscribe(ctx, topic, fn)
if err != nil {
t.Fatalf("Unexpected error subscribing %v", err)
}
msgs := make([]*Message, 0, count)
msgs := make([]Message, 0, count)
for i := 0; i < count; i++ {
message := &Message{
Header: map[string]string{
message := &memoryMessage{
header: map[string]string{
metadata.HeaderTopic: topic,
"foo": "bar",
"id": fmt.Sprintf("%d", i),
},
Body: []byte(`"hello world"`),
body: []byte(`"hello world"`),
}
msgs = append(msgs, message)
}
if err := b.BatchPublish(ctx, msgs); err != nil {
if err := b.Publish(ctx, msgs); err != nil {
t.Fatalf("Unexpected error publishing %v", err)
}
@ -65,8 +71,8 @@ func TestMemoryBroker(t *testing.T) {
topic := "test"
count := 10
fn := func(p Event) error {
return nil
fn := func(p Message) error {
return p.Ack()
}
sub, err := b.Subscribe(ctx, topic, fn)
@ -74,24 +80,20 @@ func TestMemoryBroker(t *testing.T) {
t.Fatalf("Unexpected error subscribing %v", err)
}
msgs := make([]*Message, 0, count)
msgs := make([]Message, 0, count)
for i := 0; i < count; i++ {
message := &Message{
Header: map[string]string{
message := &memoryMessage{
header: map[string]string{
metadata.HeaderTopic: topic,
"foo": "bar",
"id": fmt.Sprintf("%d", i),
},
Body: []byte(`"hello world"`),
body: []byte(`"hello world"`),
}
msgs = append(msgs, message)
if err := b.Publish(ctx, topic, message); err != nil {
t.Fatalf("Unexpected error publishing %d err: %v", i, err)
}
}
if err := b.BatchPublish(ctx, msgs); err != nil {
if err := b.Publish(ctx, msgs); err != nil {
t.Fatalf("Unexpected error publishing %v", err)
}

222
broker/options.go
View File

@ -9,29 +9,11 @@ import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/tracer"
)
var (
// PublishMessageDurationSeconds specifies meter metric name
PublishMessageDurationSeconds = "publish_message_duration_seconds"
// PublishMessageLatencyMicroseconds specifies meter metric name
PublishMessageLatencyMicroseconds = "publish_message_latency_microseconds"
// PublishMessageTotal specifies meter metric name
PublishMessageTotal = "publish_message_total"
// PublishMessageInflight specifies meter metric name
PublishMessageInflight = "publish_message_inflight"
// SubscribeMessageDurationSeconds specifies meter metric name
SubscribeMessageDurationSeconds = "subscribe_message_duration_seconds"
// SubscribeMessageLatencyMicroseconds specifies meter metric name
SubscribeMessageLatencyMicroseconds = "subscribe_message_latency_microseconds"
// SubscribeMessageTotal specifies meter metric name
SubscribeMessageTotal = "subscribe_message_total"
// SubscribeMessageInflight specifies meter metric name
SubscribeMessageInflight = "subscribe_message_inflight"
)
// Options struct
type Options struct {
// Tracer used for tracing
@ -48,19 +30,16 @@ type Options struct {
Context context.Context
// TLSConfig holds tls.TLSConfig options
TLSConfig *tls.Config
// ErrorHandler used when broker can't unmarshal incoming message
ErrorHandler func(Message)
// ErrorHandler used when broker have error while processing message
ErrorHandler interface{}
// Name holds the broker name
Name string
// Addrs holds the broker address
Addrs []string
// Address holds the broker address
Address []string
}
// Option func
type Option func(*Options)
// NewOptions create new Options
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Register: register.DefaultRegister,
Logger: logger.DefaultLogger,
@ -75,49 +54,22 @@ func NewOptions(opts ...Option) Options {
return options
}
// Context sets the context option
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// MessageOption func
type MessageOption func(*MessageOptions)
// MessageOptions struct
type MessageOptions struct {
Metadata metadata.Metadata
ContentType string
}
// MessageMetadata pass additional message metadata
func MessageMetadata(md metadata.Metadata) MessageOption {
return func(o *MessageOptions) {
o.Metadata = md
}
}
// MessageContentType pass ContentType for message data
func MessageContentType(ct string) MessageOption {
return func(o *MessageOptions) {
o.ContentType = ct
}
}
// PublishOption func
type PublishOption func(*PublishOptions)
// PublishOptions struct
type PublishOptions struct {
// Context holds external options
Context context.Context
// BodyOnly flag says the message contains raw body bytes
BodyOnly bool
// Message metadata usually passed as message headers
Metadata metadata.Metadata
// Content-Type of message for marshal
ContentType string
// Topic destination
Topic string
}
// NewPublishOptions creates PublishOptions struct
func NewPublishOptions(opts ...PublishOption) PublishOptions {
func NewPublishOptions(opts ...options.Option) PublishOptions {
options := PublishOptions{
Context: context.Background(),
}
@ -127,12 +79,19 @@ func NewPublishOptions(opts ...PublishOption) PublishOptions {
return options
}
// PublishTopic pass topic for messages
func PublishTopic(t string) options.Option {
return func(src interface{}) error {
return options.Set(src, t, ".Topic")
}
}
// SubscribeOptions struct
type SubscribeOptions struct {
// Context holds external options
Context context.Context
// ErrorHandler used when broker can't unmarshal incoming message
ErrorHandler func(Message)
// ErrorHandler used when broker have error while processing message
ErrorHandler interface{}
// QueueGroup holds consumer group
QueueGroup string
// AutoAck flag specifies auto ack of incoming message when no error happens
@ -145,99 +104,16 @@ type SubscribeOptions struct {
BatchWait time.Duration
}
// PublishBodyOnly publish only body of the message
func PublishBodyOnly(b bool) PublishOption {
return func(o *PublishOptions) {
o.BodyOnly = b
}
}
// PublishContext sets the context
func PublishContext(ctx context.Context) PublishOption {
return func(o *PublishOptions) {
o.Context = ctx
}
}
// Addrs sets the host addresses to be used by the broker
func Addrs(addrs ...string) Option {
return func(o *Options) {
o.Addrs = addrs
}
}
// Codec sets the codec used for encoding/decoding used where
// a broker does not support headers
// Codec to be used to encode/decode requests for a given content type
func Codec(contentType string, c codec.Codec) Option {
return func(o *Options) {
o.Codecs[contentType] = c
}
}
// ErrorHandler will catch all broker errors that cant be handled
// in normal way, for example Codec errors
func ErrorHandler(h func(Message)) Option {
return func(o *Options) {
o.ErrorHandler = h
func ErrorHandler(h interface{}) options.Option {
return func(src interface{}) error {
return options.Set(src, h, ".ErrorHandler")
}
}
// SubscribeErrorHandler will catch all broker errors that cant be handled
// in normal way, for example Codec errors
func SubscribeErrorHandler(h func(Message)) SubscribeOption {
return func(o *SubscribeOptions) {
o.ErrorHandler = h
}
}
// Register sets register option
func Register(r register.Register) Option {
return func(o *Options) {
o.Register = r
}
}
// TLSConfig sets the TLS Config
func TLSConfig(t *tls.Config) Option {
return func(o *Options) {
o.TLSConfig = t
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}
// SubscribeOption func signature
type SubscribeOption func(*SubscribeOptions)
// NewSubscribeOptions creates new SubscribeOptions
func NewSubscribeOptions(opts ...SubscribeOption) SubscribeOptions {
func NewSubscribeOptions(opts ...options.Option) SubscribeOptions {
options := SubscribeOptions{
AutoAck: true,
Context: context.Background(),
@ -248,52 +124,38 @@ func NewSubscribeOptions(opts ...SubscribeOption) SubscribeOptions {
return options
}
// SubscribeContext set context
func SubscribeContext(ctx context.Context) SubscribeOption {
return func(o *SubscribeOptions) {
o.Context = ctx
}
}
// SubscribeAutoAck contol auto acking of messages
// after they have been handled.
func SubscribeAutoAck(b bool) SubscribeOption {
return func(o *SubscribeOptions) {
o.AutoAck = b
func SubscribeAutoAck(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".AutoAck")
}
}
// SubscribeBodyOnly consumes only body of the message
func SubscribeBodyOnly(b bool) SubscribeOption {
return func(o *SubscribeOptions) {
o.BodyOnly = b
// BodyOnly transfer only body without
func BodyOnly(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".BodyOnly")
}
}
// SubscribeBatchSize specifies max batch size
func SubscribeBatchSize(n int) SubscribeOption {
return func(o *SubscribeOptions) {
o.BatchSize = n
func SubscribeBatchSize(n int) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".BatchSize")
}
}
// SubscribeBatchWait specifies max batch wait time
func SubscribeBatchWait(td time.Duration) SubscribeOption {
return func(o *SubscribeOptions) {
o.BatchWait = td
func SubscribeBatchWait(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".BatchWait")
}
}
// SubscribeQueueGroup sets the shared queue name distributed messages across subscribers
func SubscribeQueueGroup(n string) SubscribeOption {
return func(o *SubscribeOptions) {
o.QueueGroup = n
}
}
// SubscribeAutoAck control auto ack processing for handler
func SubscribeAuthAck(b bool) SubscribeOption {
return func(o *SubscribeOptions) {
o.AutoAck = b
func SubscribeQueueGroup(n string) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".QueueGroup")
}
}

26
client/client.go
View File

@ -6,6 +6,7 @@ import (
"time"
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/options"
)
var (
@ -21,6 +22,8 @@ var (
DefaultRetries = 0
// DefaultRequestTimeout is the default request timeout
DefaultRequestTimeout = time.Second * 5
// DefaultDialTimeout the default dial timeout
DefaultDialTimeout = time.Second * 5
// DefaultPoolSize sets the connection pool size
DefaultPoolSize = 100
// DefaultPoolTTL sets the connection pool ttl
@ -32,11 +35,11 @@ var (
// It also supports bidirectional streaming of requests.
type Client interface {
Name() string
Init(opts ...Option) error
Init(opts ...options.Option) error
Options() Options
NewRequest(service string, endpoint string, req interface{}, opts ...RequestOption) Request
Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error
Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error)
NewRequest(service string, endpoint string, req interface{}, opts ...options.Option) Request
Call(ctx context.Context, req Request, rsp interface{}, opts ...options.Option) error
Stream(ctx context.Context, req Request, opts ...options.Option) (Stream, error)
String() string
}
@ -97,18 +100,3 @@ type Stream interface {
// CloseSend closes the send direction of the stream
CloseSend() error
}
// Option used by the Client
type Option func(*Options)
// CallOption used by Call or Stream
type CallOption func(*CallOptions)
// PublishOption used by Publish
type PublishOption func(*PublishOptions)
// MessageOption used by NewMessage
type MessageOption func(*MessageOptions)
// RequestOption used by NewRequest
type RequestOption func(*RequestOptions)

10
client/client_call_options.go
View File

@ -2,22 +2,24 @@ package client
import (
"context"
"go.unistack.org/micro/v4/options"
)
type clientCallOptions struct {
Client
opts []CallOption
opts []options.Option
}
func (s *clientCallOptions) Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error {
func (s *clientCallOptions) Call(ctx context.Context, req Request, rsp interface{}, opts ...options.Option) error {
return s.Client.Call(ctx, req, rsp, append(s.opts, opts...)...)
}
func (s *clientCallOptions) Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error) {
func (s *clientCallOptions) Stream(ctx context.Context, req Request, opts ...options.Option) (Stream, error) {
return s.Client.Stream(ctx, req, append(s.opts, opts...)...)
}
// NewClientCallOptions add CallOption to every call
func NewClientCallOptions(c Client, opts ...CallOption) Client {
func NewClientCallOptions(c Client, opts ...options.Option) Client {
return &clientCallOptions{c, opts}
}

10
client/client_call_options_test.go
View File

@ -4,6 +4,8 @@ import (
"context"
"testing"
"time"
"go.unistack.org/micro/v4/options"
)
func TestNewClientCallOptions(t *testing.T) {
@ -13,11 +15,11 @@ func TestNewClientCallOptions(t *testing.T) {
return fn
}
c := NewClientCallOptions(NewClient(),
WithAddress("127.0.0.1"),
options.Address("127.0.0.1"),
WithCallWrapper(w),
WithRequestTimeout(1*time.Millisecond),
WithRetries(0),
WithBackoff(BackoffInterval(10*time.Millisecond, 100*time.Millisecond)),
RequestTimeout(1*time.Millisecond),
Retries(0),
Backoff(BackoffInterval(10*time.Millisecond, 100*time.Millisecond)),
)
_ = c.Call(context.TODO(), c.NewRequest("service", "endpoint", nil), nil)
if !flag {

30
client/context.go
View File

@ -22,33 +22,3 @@ func NewContext(ctx context.Context, c Client) context.Context {
}
return context.WithValue(ctx, clientKey{}, c)
}
// SetPublishOption returns a function to setup a context with given value
func SetPublishOption(k, v interface{}) PublishOption {
return func(o *PublishOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetCallOption returns a function to setup a context with given value
func SetCallOption(k, v interface{}) CallOption {
return func(o *CallOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

33
client/context_test.go
View File

@ -38,36 +38,3 @@ func TestNewNilContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetPublishOption(t *testing.T) {
type key struct{}
o := SetPublishOption(key{}, "test")
opts := &PublishOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetPublishOption not works")
}
}
func TestSetCallOption(t *testing.T) {
type key struct{}
o := SetCallOption(key{}, "test")
opts := &CallOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetCallOption not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

60
client/noop.go
View File

@ -8,7 +8,9 @@ import (
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/errors"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/selector"
"go.unistack.org/micro/v4/semconv"
)
// DefaultCodecs will be used to encode/decode data
@ -20,12 +22,6 @@ type noopClient struct {
opts Options
}
type noopMessage struct {
topic string
payload interface{}
opts MessageOptions
}
type noopRequest struct {
body interface{}
codec codec.Codec
@ -37,16 +33,12 @@ type noopRequest struct {
}
// NewClient returns new noop client
func NewClient(opts ...Option) Client {
func NewClient(opts ...options.Option) Client {
nc := &noopClient{opts: NewOptions(opts...)}
// wrap in reverse
c := Client(nc)
for i := len(nc.opts.Wrappers); i > 0; i-- {
c = nc.opts.Wrappers[i-1](c)
}
return c
}
@ -141,22 +133,6 @@ func (n *noopStream) CloseSend() error {
return nil
}
func (n *noopMessage) Topic() string {
return n.topic
}
func (n *noopMessage) Payload() interface{} {
return n.payload
}
func (n *noopMessage) ContentType() string {
return n.opts.ContentType
}
func (n *noopMessage) Metadata() metadata.Metadata {
return n.opts.Metadata
}
func (n *noopClient) newCodec(contentType string) (codec.Codec, error) {
if cf, ok := n.opts.Codecs[contentType]; ok {
return cf, nil
@ -167,7 +143,7 @@ func (n *noopClient) newCodec(contentType string) (codec.Codec, error) {
return nil, codec.ErrUnknownContentType
}
func (n *noopClient) Init(opts ...Option) error {
func (n *noopClient) Init(opts ...options.Option) error {
for _, o := range opts {
o(&n.opts)
}
@ -182,7 +158,7 @@ func (n *noopClient) String() string {
return "noop"
}
func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error {
func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opts ...options.Option) error {
// make a copy of call opts
callOpts := n.opts.CallOptions
for _, opt := range opts {
@ -199,7 +175,7 @@ func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opt
} else {
// got a deadline so no need to setup context
// but we need to set the timeout we pass along
opt := WithRequestTimeout(time.Until(d))
opt := RequestTimeout(time.Until(d))
opt(&callOpts)
}
@ -286,7 +262,7 @@ func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opt
ts := time.Now()
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
n.opts.Meter.Counter(ClientRequestInflight, "endpoint", endpoint).Inc()
n.opts.Meter.Counter(semconv.ClientRequestInflight, "endpoint", endpoint).Inc()
for i := 0; i <= callOpts.Retries; i++ {
go func() {
ch <- call(i)
@ -315,14 +291,14 @@ func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opt
}
if gerr != nil {
n.opts.Meter.Counter(ClientRequestTotal, "endpoint", endpoint, "status", "failure").Inc()
n.opts.Meter.Counter(semconv.ClientRequestTotal, "endpoint", endpoint, "status", "failure").Inc()
} else {
n.opts.Meter.Counter(ClientRequestTotal, "endpoint", endpoint, "status", "success").Inc()
n.opts.Meter.Counter(semconv.ClientRequestTotal, "endpoint", endpoint, "status", "success").Inc()
}
n.opts.Meter.Counter(ClientRequestInflight, "endpoint", endpoint).Dec()
n.opts.Meter.Counter(semconv.ClientRequestInflight, "endpoint", endpoint).Dec()
te := time.Since(ts)
n.opts.Meter.Summary(ClientRequestLatencyMicroseconds, "endpoint", endpoint).Update(te.Seconds())
n.opts.Meter.Histogram(ClientRequestDurationSeconds, "endpoint", endpoint).Update(te.Seconds())
n.opts.Meter.Summary(semconv.ClientRequestLatencyMicroseconds, "endpoint", endpoint).Update(te.Seconds())
n.opts.Meter.Histogram(semconv.ClientRequestDurationSeconds, "endpoint", endpoint).Update(te.Seconds())
return gerr
}
@ -331,11 +307,11 @@ func (n *noopClient) call(ctx context.Context, addr string, req Request, rsp int
return nil
}
func (n *noopClient) NewRequest(service, endpoint string, req interface{}, opts ...RequestOption) Request {
func (n *noopClient) NewRequest(service, endpoint string, req interface{}, opts ...options.Option) Request {
return &noopRequest{service: service, endpoint: endpoint}
}
func (n *noopClient) Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error) {
func (n *noopClient) Stream(ctx context.Context, req Request, opts ...options.Option) (Stream, error) {
var err error
// make a copy of call opts
@ -354,7 +330,7 @@ func (n *noopClient) Stream(ctx context.Context, req Request, opts ...CallOption
} else {
// got a deadline so no need to setup context
// but we need to set the timeout we pass along
o := WithStreamTimeout(time.Until(d))
o := StreamTimeout(time.Until(d))
o(&callOpts)
}
@ -423,12 +399,12 @@ func (n *noopClient) Stream(ctx context.Context, req Request, opts ...CallOption
// ts := time.Now()
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
n.opts.Meter.Counter(ClientRequestInflight, "endpoint", endpoint).Inc()
n.opts.Meter.Counter(semconv.ClientRequestInflight, "endpoint", endpoint).Inc()
stream, cerr := n.stream(ctx, node, req, callOpts)
if cerr != nil {
n.opts.Meter.Counter(ClientRequestTotal, "endpoint", endpoint, "status", "failure").Inc()
n.opts.Meter.Counter(semconv.ClientRequestTotal, "endpoint", endpoint, "status", "failure").Inc()
} else {
n.opts.Meter.Counter(ClientRequestTotal, "endpoint", endpoint, "status", "success").Inc()
n.opts.Meter.Counter(semconv.ClientRequestTotal, "endpoint", endpoint, "status", "success").Inc()
}
// record the result of the call to inform future routing decisions

436
client/options.go
View File

@ -10,29 +10,15 @@ import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/selector"
"go.unistack.org/micro/v4/selector/random"
"go.unistack.org/micro/v4/tracer"
)
var (
// ClientRequestDurationSeconds specifies meter metric name
ClientRequestDurationSeconds = "client_request_duration_seconds"
// ClientRequestLatencyMicroseconds specifies meter metric name
ClientRequestLatencyMicroseconds = "client_request_latency_microseconds"
// ClientRequestTotal specifies meter metric name
ClientRequestTotal = "client_request_total"
// ClientRequestInflight specifies meter metric name
ClientRequestInflight = "client_request_inflight"
)
// Options holds client options
type Options struct {
// Transport used for transfer messages
Transport transport.Transport
// Selector used to select needed address
Selector selector.Selector
// Logger used to log messages
@ -57,8 +43,6 @@ type Options struct {
ContentType string
// Name is the client name
Name string
// Wrappers contains wrappers
Wrappers []Wrapper
// CallOptions contains default CallOptions
CallOptions CallOptions
// PoolSize connection pool size
@ -67,10 +51,12 @@ type Options struct {
PoolTTL time.Duration
// ContextDialer used to connect
ContextDialer func(context.Context, string) (net.Conn, error)
// Hooks may contains Client func wrapper
Hooks options.Hooks
}
// NewCallOptions creates new call options struct
func NewCallOptions(opts ...CallOption) CallOptions {
func NewCallOptions(opts ...options.Option) CallOptions {
options := CallOptions{}
for _, o := range opts {
o(&options)
@ -119,58 +105,14 @@ type CallOptions struct {
}
// ContextDialer pass ContextDialer to client
func ContextDialer(fn func(context.Context, string) (net.Conn, error)) Option {
return func(o *Options) {
o.ContextDialer = fn
func ContextDialer(fn func(context.Context, string) (net.Conn, error)) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".ContextDialer")
}
}
// Context pass context to client
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// NewPublishOptions create new PublishOptions struct from option
func NewPublishOptions(opts ...PublishOption) PublishOptions {
options := PublishOptions{}
for _, o := range opts {
o(&options)
}
return options
}
// PublishOptions holds publish options
type PublishOptions struct {
// Context used for external options
Context context.Context
// Exchange topic exchange name
Exchange string
// BodyOnly will publish only message body
BodyOnly bool
}
// NewMessageOptions creates message options struct
func NewMessageOptions(opts ...MessageOption) MessageOptions {
options := MessageOptions{Metadata: metadata.New(1)}
for _, o := range opts {
o(&options)
}
return options
}
// MessageOptions holds client message options
type MessageOptions struct {
// Metadata additional metadata
Metadata metadata.Metadata
// ContentType specify content-type of message
// deprecated
ContentType string
}
// NewRequestOptions creates new RequestOptions struct
func NewRequestOptions(opts ...RequestOption) RequestOptions {
func NewRequestOptions(opts ...options.Option) RequestOptions {
options := RequestOptions{}
for _, o := range opts {
o(&options)
@ -189,7 +131,7 @@ type RequestOptions struct {
}
// NewOptions creates new options struct
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Context: context.Background(),
ContentType: DefaultContentType,
@ -200,7 +142,7 @@ func NewOptions(opts ...Option) Options {
Retry: DefaultRetry,
Retries: DefaultRetries,
RequestTimeout: DefaultRequestTimeout,
DialTimeout: transport.DefaultDialTimeout,
DialTimeout: DefaultDialTimeout,
},
Lookup: LookupRoute,
PoolSize: DefaultPoolSize,
@ -210,7 +152,6 @@ func NewOptions(opts ...Option) Options {
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
Router: router.DefaultRouter,
Transport: transport.DefaultTransport,
}
for _, o := range opts {
@ -220,374 +161,131 @@ func NewOptions(opts ...Option) Options {
return options
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Logger to be used for log mesages
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter to be used for metrics
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Codec to be used to encode/decode requests for a given content type
func Codec(contentType string, c codec.Codec) Option {
return func(o *Options) {
o.Codecs[contentType] = c
}
}
// ContentType used by default if not specified
func ContentType(ct string) Option {
return func(o *Options) {
o.ContentType = ct
}
}
// Proxy sets the proxy address
func Proxy(addr string) Option {
return func(o *Options) {
o.Proxy = addr
func Proxy(addr string) options.Option {
return func(src interface{}) error {
return options.Set(src, addr, ".Proxy")
}
}
// PoolSize sets the connection pool size
func PoolSize(d int) Option {
return func(o *Options) {
o.PoolSize = d
func PoolSize(d int) options.Option {
return func(src interface{}) error {
return options.Set(src, d, ".PoolSize")
}
}
// PoolTTL sets the connection pool ttl
func PoolTTL(d time.Duration) Option {
return func(o *Options) {
o.PoolTTL = d
}
}
// Transport to use for communication e.g http, rabbitmq, etc
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
// Register sets the routers register
func Register(r register.Register) Option {
return func(o *Options) {
if o.Router != nil {
_ = o.Router.Init(router.Register(r))
}
}
}
// Router is used to lookup routes for a service
func Router(r router.Router) Option {
return func(o *Options) {
o.Router = r
func PoolTTL(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".PoolTTL")
}
}
// Selector is used to select a route
func Selector(s selector.Selector) Option {
return func(o *Options) {
o.Selector = s
}
}
// Wrap adds a wrapper to the list of options passed into the client
func Wrap(w Wrapper) Option {
return func(o *Options) {
o.Wrappers = append(o.Wrappers, w)
}
}
// WrapCall adds a wrapper to the list of CallFunc wrappers
func WrapCall(cw ...CallWrapper) Option {
return func(o *Options) {
o.CallOptions.CallWrappers = append(o.CallOptions.CallWrappers, cw...)
func Selector(s selector.Selector) options.Option {
return func(src interface{}) error {
return options.Set(src, s, ".Selector")
}
}
// Backoff is used to set the backoff function used when retrying Calls
func Backoff(fn BackoffFunc) Option {
return func(o *Options) {
o.CallOptions.Backoff = fn
}
}
// Name sets the client name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
func Backoff(fn BackoffFunc) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".Backoff")
}
}
// Lookup sets the lookup function to use for resolving service names
func Lookup(l LookupFunc) Option {
return func(o *Options) {
o.Lookup = l
func Lookup(fn LookupFunc) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".Lookup")
}
}
// TLSConfig specifies a *tls.Config
func TLSConfig(t *tls.Config) Option {
return func(o *Options) {
// set the internal tls
o.TLSConfig = t
// set the default transport if one is not
// already set. Required for Init call below.
// set the transport tls
_ = o.Transport.Init(
transport.TLSConfig(t),
)
// WithCallWrapper sets the retry function to be used when re-trying.
func WithCallWrapper(fn CallWrapper) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".CallWrappers")
}
}
// Retries sets the retry count when making the request.
func Retries(i int) Option {
return func(o *Options) {
o.CallOptions.Retries = i
func Retries(n int) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".Retries")
}
}
// Retry sets the retry function to be used when re-trying.
func Retry(fn RetryFunc) Option {
return func(o *Options) {
o.CallOptions.Retry = fn
func Retry(fn RetryFunc) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".Retry")
}
}
// RequestTimeout is the request timeout.
func RequestTimeout(d time.Duration) Option {
return func(o *Options) {
o.CallOptions.RequestTimeout = d
func RequestTimeout(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".RequestTimeout")
}
}
// StreamTimeout sets the stream timeout
func StreamTimeout(d time.Duration) Option {
return func(o *Options) {
o.CallOptions.StreamTimeout = d
func StreamTimeout(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".StreamTimeout")
}
}
// DialTimeout sets the dial timeout
func DialTimeout(d time.Duration) Option {
return func(o *Options) {
o.CallOptions.DialTimeout = d
}
}
// WithExchange sets the exchange to route a message through
// Deprecated
func WithExchange(e string) PublishOption {
return func(o *PublishOptions) {
o.Exchange = e
}
}
// PublishExchange sets the exchange to route a message through
func PublishExchange(e string) PublishOption {
return func(o *PublishOptions) {
o.Exchange = e
}
}
// WithBodyOnly publish only message body
// DERECATED
func WithBodyOnly(b bool) PublishOption {
return func(o *PublishOptions) {
o.BodyOnly = b
}
}
// PublishBodyOnly publish only message body
func PublishBodyOnly(b bool) PublishOption {
return func(o *PublishOptions) {
o.BodyOnly = b
}
}
// PublishContext sets the context in publish options
func PublishContext(ctx context.Context) PublishOption {
return func(o *PublishOptions) {
o.Context = ctx
}
}
// WithContextDialer pass ContextDialer to client call
func WithContextDialer(fn func(context.Context, string) (net.Conn, error)) CallOption {
return func(o *CallOptions) {
o.ContextDialer = fn
}
}
// WithContentType specifies call content type
func WithContentType(ct string) CallOption {
return func(o *CallOptions) {
o.ContentType = ct
}
}
// WithAddress sets the remote addresses to use rather than using service discovery
func WithAddress(a ...string) CallOption {
return func(o *CallOptions) {
o.Address = a
}
}
// WithCallWrapper is a CallOption which adds to the existing CallFunc wrappers
func WithCallWrapper(cw ...CallWrapper) CallOption {
return func(o *CallOptions) {
o.CallWrappers = append(o.CallWrappers, cw...)
}
}
// WithBackoff is a CallOption which overrides that which
// set in Options.CallOptions
func WithBackoff(fn BackoffFunc) CallOption {
return func(o *CallOptions) {
o.Backoff = fn
}
}
// WithRetry is a CallOption which overrides that which
// set in Options.CallOptions
func WithRetry(fn RetryFunc) CallOption {
return func(o *CallOptions) {
o.Retry = fn
}
}
// WithRetries is a CallOption which overrides that which
// set in Options.CallOptions
func WithRetries(i int) CallOption {
return func(o *CallOptions) {
o.Retries = i
func DialTimeout(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".DialTimeout")
}
}
// WithResponseMetadata is a CallOption which adds metadata.Metadata to Options.CallOptions
func WithResponseMetadata(md *metadata.Metadata) CallOption {
return func(o *CallOptions) {
o.ResponseMetadata = md
func ResponseMetadata(md *metadata.Metadata) options.Option {
return func(src interface{}) error {
return options.Set(src, md, ".ResponseMetadata")
}
}
// WithRequestMetadata is a CallOption which adds metadata.Metadata to Options.CallOptions
func WithRequestMetadata(md metadata.Metadata) CallOption {
return func(o *CallOptions) {
o.RequestMetadata = md
func RequestMetadata(md metadata.Metadata) options.Option {
return func(src interface{}) error {
return options.Set(src, metadata.Copy(md), ".RequestMetadata")
}
}
// WithRequestTimeout is a CallOption which overrides that which
// set in Options.CallOptions
func WithRequestTimeout(d time.Duration) CallOption {
return func(o *CallOptions) {
o.RequestTimeout = d
}
}
// WithStreamTimeout sets the stream timeout
func WithStreamTimeout(d time.Duration) CallOption {
return func(o *CallOptions) {
o.StreamTimeout = d
}
}
// WithDialTimeout is a CallOption which overrides that which
// set in Options.CallOptions
func WithDialTimeout(d time.Duration) CallOption {
return func(o *CallOptions) {
o.DialTimeout = d
}
}
// WithAuthToken is a CallOption which overrides the
// AuthToken is a CallOption which overrides the
// authorization header with the services own auth token
func WithAuthToken(t string) CallOption {
return func(o *CallOptions) {
o.AuthToken = t
func AuthToken(t string) options.Option {
return func(src interface{}) error {
return options.Set(src, t, ".AuthToken")
}
}
// WithNetwork is a CallOption which sets the network attribute
func WithNetwork(n string) CallOption {
return func(o *CallOptions) {
o.Network = n
}
}
// WithRouter sets the router to use for this call
func WithRouter(r router.Router) CallOption {
return func(o *CallOptions) {
o.Router = r
}
}
// WithSelector sets the selector to use for this call
func WithSelector(s selector.Selector) CallOption {
return func(o *CallOptions) {
o.Selector = s
// Network is a CallOption which sets the network attribute
func Network(n string) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".Network")
}
}
/*
// WithSelectOptions sets the options to pass to the selector for this call
func WithSelectOptions(sops ...selector.SelectOption) CallOption {
func WithSelectOptions(sops ...selector.SelectOption) options.Option {
return func(o *CallOptions) {
o.SelectOptions = sops
}
}
// WithMessageContentType sets the message content type
// Deprecated
func WithMessageContentType(ct string) MessageOption {
return func(o *MessageOptions) {
o.Metadata.Set(metadata.HeaderContentType, ct)
o.ContentType = ct
}
}
// MessageContentType sets the message content type
func MessageContentType(ct string) MessageOption {
return func(o *MessageOptions) {
o.Metadata.Set(metadata.HeaderContentType, ct)
o.ContentType = ct
}
}
// MessageMetadata sets the message metadata
func MessageMetadata(k, v string) MessageOption {
return func(o *MessageOptions) {
o.Metadata.Set(k, v)
}
}
*/
// StreamingRequest specifies that request is streaming
func StreamingRequest(b bool) RequestOption {
return func(o *RequestOptions) {
o.Stream = b
}
}
// RequestContentType specifies request content type
func RequestContentType(ct string) RequestOption {
return func(o *RequestOptions) {
o.ContentType = ct
func StreamingRequest(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Stream")
}
}

12
config/config.go
View File

@ -6,6 +6,8 @@ import (
"errors"
"reflect"
"time"
"go.unistack.org/micro/v4/options"
)
type Validator interface {
@ -37,15 +39,15 @@ type Config interface {
// Name returns name of config
Name() string
// Init the config
Init(opts ...Option) error
Init(opts ...options.Option) error
// Options in the config
Options() Options
// Load config from sources
Load(context.Context, ...LoadOption) error
Load(context.Context, ...options.Option) error
// Save config to sources
Save(context.Context, ...SaveOption) error
Save(context.Context, ...options.Option) error
// Watch a config for changes
Watch(context.Context, ...WatchOption) (Watcher, error)
Watch(context.Context, ...options.Option) (Watcher, error)
// String returns config type name
String() string
}
@ -59,7 +61,7 @@ type Watcher interface {
}
// Load loads config from config sources
func Load(ctx context.Context, cs []Config, opts ...LoadOption) error {
func Load(ctx context.Context, cs []Config, opts ...options.Option) error {
var err error
for _, c := range cs {
if err = c.Init(); err != nil {

40
config/context.go
View File

@ -22,43 +22,3 @@ func NewContext(ctx context.Context, c Config) context.Context {
}
return context.WithValue(ctx, configKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetSaveOption returns a function to setup a context with given value
func SetSaveOption(k, v interface{}) SaveOption {
return func(o *SaveOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetLoadOption returns a function to setup a context with given value
func SetLoadOption(k, v interface{}) LoadOption {
return func(o *LoadOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetWatchOption returns a function to setup a context with given value
func SetWatchOption(k, v interface{}) WatchOption {
return func(o *WatchOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

44
config/context_test.go
View File

@ -40,47 +40,3 @@ func TestNewContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}
func TestSetSaveOption(t *testing.T) {
type key struct{}
o := SetSaveOption(key{}, "test")
opts := &SaveOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetSaveOption not works")
}
}
func TestSetLoadOption(t *testing.T) {
type key struct{}
o := SetLoadOption(key{}, "test")
opts := &LoadOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetLoadOption not works")
}
}
func TestSetWatchOption(t *testing.T) {
type key struct{}
o := SetWatchOption(key{}, "test")
opts := &WatchOptions{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetWatchOption not works")
}
}

11
config/default.go
View File

@ -9,6 +9,7 @@ import (
"github.com/google/uuid"
"github.com/imdario/mergo"
"go.unistack.org/micro/v4/options"
mid "go.unistack.org/micro/v4/util/id"
rutil "go.unistack.org/micro/v4/util/reflect"
mtime "go.unistack.org/micro/v4/util/time"
@ -22,7 +23,7 @@ func (c *defaultConfig) Options() Options {
return c.opts
}
func (c *defaultConfig) Init(opts ...Option) error {
func (c *defaultConfig) Init(opts ...options.Option) error {
for _, o := range opts {
o(&c.opts)
}
@ -38,7 +39,7 @@ func (c *defaultConfig) Init(opts ...Option) error {
return nil
}
func (c *defaultConfig) Load(ctx context.Context, opts ...LoadOption) error {
func (c *defaultConfig) Load(ctx context.Context, opts ...options.Option) error {
if err := DefaultBeforeLoad(ctx, c); err != nil && !c.opts.AllowFail {
return err
}
@ -291,7 +292,7 @@ func fillValues(valueOf reflect.Value, tname string) error {
return nil
}
func (c *defaultConfig) Save(ctx context.Context, opts ...SaveOption) error {
func (c *defaultConfig) Save(ctx context.Context, opts ...options.Option) error {
if err := DefaultBeforeSave(ctx, c); err != nil {
return err
}
@ -311,12 +312,12 @@ func (c *defaultConfig) Name() string {
return c.opts.Name
}
func (c *defaultConfig) Watch(ctx context.Context, opts ...WatchOption) (Watcher, error) {
func (c *defaultConfig) Watch(ctx context.Context, opts ...options.Option) (Watcher, error) {
return nil, ErrWatcherNotImplemented
}
// NewConfig returns new default config source
func NewConfig(opts ...Option) Config {
func NewConfig(opts ...options.Option) Config {
options := NewOptions(opts...)
if len(options.StructTag) == 0 {
options.StructTag = "default"

169
config/options.go
View File

@ -7,6 +7,7 @@ import (
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/tracer"
)
@ -44,11 +45,8 @@ type Options struct {
AllowFail bool
}
// Option function signature
type Option func(o *Options)
// NewOptions new options struct with filed values
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
@ -62,9 +60,6 @@ func NewOptions(opts ...Option) Options {
return options
}
// LoadOption function signature
type LoadOption func(o *LoadOptions)
// LoadOptions struct
type LoadOptions struct {
Struct interface{}
@ -74,7 +69,7 @@ type LoadOptions struct {
}
// NewLoadOptions create LoadOptions struct with provided opts
func NewLoadOptions(opts ...LoadOption) LoadOptions {
func NewLoadOptions(opts ...options.Option) LoadOptions {
options := LoadOptions{}
for _, o := range opts {
o(&options)
@ -83,44 +78,27 @@ func NewLoadOptions(opts ...LoadOption) LoadOptions {
}
// LoadOverride override values when load
func LoadOverride(b bool) LoadOption {
return func(o *LoadOptions) {
o.Override = b
func LoadOverride(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Override")
}
}
// LoadAppend override values when load
func LoadAppend(b bool) LoadOption {
return func(o *LoadOptions) {
o.Append = b
func LoadAppend(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Append")
}
}
// LoadStruct override struct for loading
func LoadStruct(src interface{}) LoadOption {
return func(o *LoadOptions) {
o.Struct = src
}
}
// SaveOption function signature
type SaveOption func(o *SaveOptions)
// SaveOptions struct
type SaveOptions struct {
Struct interface{}
Context context.Context
}
// SaveStruct override struct for save to config
func SaveStruct(src interface{}) SaveOption {
return func(o *SaveOptions) {
o.Struct = src
}
}
// NewSaveOptions fill SaveOptions struct
func NewSaveOptions(opts ...SaveOption) SaveOptions {
func NewSaveOptions(opts ...options.Option) SaveOptions {
options := SaveOptions{}
for _, o := range opts {
o(&options)
@ -129,100 +107,65 @@ func NewSaveOptions(opts ...SaveOption) SaveOptions {
}
// AllowFail allows config source to fail
func AllowFail(b bool) Option {
return func(o *Options) {
o.AllowFail = b
func AllowFail(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".AllowFail")
}
}
// BeforeInit run funcs before config Init
func BeforeInit(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.BeforeInit = fn
func BeforeInit(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".BeforeInit")
}
}
// AfterInit run funcs after config Init
func AfterInit(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.AfterInit = fn
func AfterInit(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".AfterInit")
}
}
// BeforeLoad run funcs before config load
func BeforeLoad(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.BeforeLoad = fn
func BeforeLoad(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".BeforeLoad")
}
}
// AfterLoad run funcs after config load
func AfterLoad(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.AfterLoad = fn
func AfterLoad(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".AfterLoad")
}
}
// BeforeSave run funcs before save
func BeforeSave(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.BeforeSave = fn
func BeforeSave(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".BeforeSave")
}
}
// AfterSave run fncs after save
func AfterSave(fn ...func(context.Context, Config) error) Option {
return func(o *Options) {
o.AfterSave = fn
}
}
// Context pass context
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// Codec sets the source codec
func Codec(c codec.Codec) Option {
return func(o *Options) {
o.Codec = c
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
func AfterSave(fn ...func(context.Context, Config) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".AfterSave")
}
}
// Struct used as config
func Struct(v interface{}) Option {
return func(o *Options) {
o.Struct = v
func Struct(v interface{}) options.Option {
return func(src interface{}) error {
return options.Set(src, v, ".Struct")
}
}
// StructTag sets the struct tag that used for filling
func StructTag(name string) Option {
return func(o *Options) {
o.StructTag = name
}
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
func StructTag(name string) options.Option {
return func(src interface{}) error {
return options.Set(src, name, ".StructTag")
}
}
@ -240,11 +183,8 @@ type WatchOptions struct {
Coalesce bool
}
// WatchOption func signature
type WatchOption func(*WatchOptions)
// NewWatchOptions create WatchOptions struct with provided opts
func NewWatchOptions(opts ...WatchOption) WatchOptions {
func NewWatchOptions(opts ...options.Option) WatchOptions {
options := WatchOptions{
Context: context.Background(),
MinInterval: DefaultWatcherMinInterval,
@ -256,31 +196,20 @@ func NewWatchOptions(opts ...WatchOption) WatchOptions {
return options
}
// WatchContext pass context
func WatchContext(ctx context.Context) WatchOption {
return func(o *WatchOptions) {
o.Context = ctx
}
}
// WatchCoalesce controls watch event combining
func WatchCoalesce(b bool) WatchOption {
return func(o *WatchOptions) {
o.Coalesce = b
// Coalesce controls watch event combining
func Coalesce(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Coalesce")
}
}
// WatchInterval specifies min and max time.Duration for pulling changes
func WatchInterval(min, max time.Duration) WatchOption {
return func(o *WatchOptions) {
o.MinInterval = min
o.MaxInterval = max
}
}
// WatchStruct overrides struct for fill
func WatchStruct(src interface{}) WatchOption {
return func(o *WatchOptions) {
o.Struct = src
func WatchInterval(min, max time.Duration) options.Option {
return func(src interface{}) error {
var err error
if err = options.Set(src, min, ".MinInterval"); err == nil {
err = options.Set(src, max, ".MaxInterval")
}
return err
}
}

10
flow/context.go
View File

@ -22,13 +22,3 @@ func NewContext(ctx context.Context, f Flow) context.Context {
}
return context.WithValue(ctx, flowKey{}, f)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

11
flow/context_test.go
View File

@ -40,14 +40,3 @@ func TestNewContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

32
flow/default.go
View File

@ -10,6 +10,8 @@ import (
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/options"
moptions "go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/store"
"go.unistack.org/micro/v4/util/id"
)
@ -163,7 +165,7 @@ func (w *microWorkflow) Resume(ctx context.Context, id string) error {
return workflowStore.Write(ctx, "status", &codec.Frame{Data: []byte(StatusRunning.String())})
}
func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (string, error) {
func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...options.Option) (string, error) {
w.Lock()
if !w.init {
if err := w.g.Validate(); err != nil {
@ -200,13 +202,13 @@ func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...Execu
nctx, cancel := context.WithCancel(ctx)
defer cancel()
nopts := make([]ExecuteOption, 0, len(opts)+5)
nopts := make([]moptions.Option, 0, len(opts)+5)
nopts = append(nopts,
ExecuteClient(w.opts.Client),
ExecuteTracer(w.opts.Tracer),
ExecuteLogger(w.opts.Logger),
ExecuteMeter(w.opts.Meter),
moptions.Client(w.opts.Client),
moptions.Tracer(w.opts.Tracer),
moptions.Logger(w.opts.Logger),
moptions.Meter(w.opts.Meter),
)
nopts = append(nopts, opts...)
done := make(chan struct{})
@ -349,7 +351,7 @@ func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...Execu
}
// NewFlow create new flow
func NewFlow(opts ...Option) Flow {
func NewFlow(opts ...options.Option) Flow {
options := NewOptions(opts...)
return &microFlow{opts: options}
}
@ -358,7 +360,7 @@ func (f *microFlow) Options() Options {
return f.opts
}
func (f *microFlow) Init(opts ...Option) error {
func (f *microFlow) Init(opts ...options.Option) error {
for _, o := range opts {
o(&f.opts)
}
@ -487,17 +489,17 @@ func (s *microCallStep) SetStatus(status Status) {
s.status = status
}
func (s *microCallStep) Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (*Message, error) {
func (s *microCallStep) Execute(ctx context.Context, req *Message, opts ...options.Option) (*Message, error) {
options := NewExecuteOptions(opts...)
if options.Client == nil {
return nil, ErrMissingClient
}
rsp := &codec.Frame{}
copts := []client.CallOption{client.WithRetries(0)}
copts := []moptions.Option{client.Retries(0)}
if options.Timeout > 0 {
copts = append(copts,
client.WithRequestTimeout(options.Timeout),
client.WithDialTimeout(options.Timeout))
client.RequestTimeout(options.Timeout),
client.DialTimeout(options.Timeout))
}
nctx := metadata.NewOutgoingContext(ctx, req.Header)
err := options.Client.Call(nctx, options.Client.NewRequest(s.service, s.method, &codec.Frame{Data: req.Body}), rsp, copts...)
@ -570,18 +572,18 @@ func (s *microPublishStep) SetStatus(status Status) {
s.status = status
}
func (s *microPublishStep) Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (*Message, error) {
func (s *microPublishStep) Execute(ctx context.Context, req *Message, opts ...options.Option) (*Message, error) {
return nil, nil
}
// NewCallStep create new step with client.Call
func NewCallStep(service string, name string, method string, opts ...StepOption) Step {
func NewCallStep(service string, name string, method string, opts ...options.Option) Step {
options := NewStepOptions(opts...)
return &microCallStep{service: service, method: name + "." + method, opts: options}
}
// NewPublishStep create new step with client.Publish
func NewPublishStep(topic string, opts ...StepOption) Step {
func NewPublishStep(topic string, opts ...options.Option) Step {
options := NewStepOptions(opts...)
return &microPublishStep{topic: topic, opts: options}
}

7
flow/flow.go
View File

@ -8,6 +8,7 @@ import (
"sync/atomic"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/options"
)
var (
@ -51,7 +52,7 @@ type Step interface {
// Endpoint returns rpc endpoint service_name.service_method or broker topic
Endpoint() string
// Execute step run
Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (*Message, error)
Execute(ctx context.Context, req *Message, opts ...options.Option) (*Message, error)
// Requires returns dependent steps
Requires() []string
// Options returns step options
@ -118,7 +119,7 @@ type Workflow interface {
// ID returns id of the workflow
ID() string
// Execute workflow with args, return execution id and error
Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (string, error)
Execute(ctx context.Context, req *Message, opts ...options.Option) (string, error)
// RemoveSteps remove steps from workflow
RemoveSteps(steps ...Step) error
// AppendSteps append steps to workflow
@ -140,7 +141,7 @@ type Flow interface {
// Options returns options
Options() Options
// Init initialize
Init(...Option) error
Init(...options.Option) error
// WorkflowCreate creates new workflow with specific id and steps
WorkflowCreate(ctx context.Context, id string, steps ...Step) (Workflow, error)
// WorkflowSave saves workflow

151
flow/options.go
View File

@ -7,13 +7,11 @@ import (
"go.unistack.org/micro/v4/client"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/store"
"go.unistack.org/micro/v4/tracer"
)
// Option func
type Option func(*Options)
// Options server struct
type Options struct {
// Context holds the external options and can be used for flow shutdown
@ -31,7 +29,7 @@ type Options struct {
}
// NewOptions returns new options struct with default or passed values
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Context: context.Background(),
Logger: logger.DefaultLogger,
@ -47,66 +45,12 @@ func NewOptions(opts ...Option) Options {
return options
}
// Logger sets the logger option
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter option
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Client to use for sync/async communication
func Client(c client.Client) Option {
return func(o *Options) {
o.Client = c
}
}
// Context specifies a context for the service.
// Can be used to signal shutdown of the flow
// or can be used for extra option values.
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// Tracer mechanism for distributed tracking
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Store used for intermediate results
func Store(s store.Store) Option {
return func(o *Options) {
o.Store = s
}
}
// WorkflowOption func signature
type WorkflowOption func(*WorkflowOptions)
// WorkflowOptions holds workflow options
type WorkflowOptions struct {
Context context.Context
ID string
}
// WorkflowID set workflow id
func WorkflowID(id string) WorkflowOption {
return func(o *WorkflowOptions) {
o.ID = id
}
}
// ExecuteOptions holds execute options
type ExecuteOptions struct {
// Client holds the client.Client
@ -129,67 +73,22 @@ type ExecuteOptions struct {
Async bool
}
// ExecuteOption func signature
type ExecuteOption func(*ExecuteOptions)
// ExecuteClient pass client.Client to ExecuteOption
func ExecuteClient(c client.Client) ExecuteOption {
return func(o *ExecuteOptions) {
o.Client = c
// Reverse says that dag must be run in reverse order
func Reverse(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Reverse")
}
}
// ExecuteTracer pass tracer.Tracer to ExecuteOption
func ExecuteTracer(t tracer.Tracer) ExecuteOption {
return func(o *ExecuteOptions) {
o.Tracer = t
}
}
// ExecuteLogger pass logger.Logger to ExecuteOption
func ExecuteLogger(l logger.Logger) ExecuteOption {
return func(o *ExecuteOptions) {
o.Logger = l
}
}
// ExecuteMeter pass meter.Meter to ExecuteOption
func ExecuteMeter(m meter.Meter) ExecuteOption {
return func(o *ExecuteOptions) {
o.Meter = m
}
}
// ExecuteContext pass context.Context ot ExecuteOption
func ExecuteContext(ctx context.Context) ExecuteOption {
return func(o *ExecuteOptions) {
o.Context = ctx
}
}
// ExecuteReverse says that dag must be run in reverse order
func ExecuteReverse(b bool) ExecuteOption {
return func(o *ExecuteOptions) {
o.Reverse = b
}
}
// ExecuteTimeout pass timeout time.Duration for execution
func ExecuteTimeout(td time.Duration) ExecuteOption {
return func(o *ExecuteOptions) {
o.Timeout = td
}
}
// ExecuteAsync says that caller does not wait for execution complete
func ExecuteAsync(b bool) ExecuteOption {
return func(o *ExecuteOptions) {
o.Async = b
// Async says that caller does not wait for execution complete
func Async(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".Async")
}
}
// NewExecuteOptions create new ExecuteOptions struct
func NewExecuteOptions(opts ...ExecuteOption) ExecuteOptions {
func NewExecuteOptions(opts ...options.Option) ExecuteOptions {
options := ExecuteOptions{
Client: client.DefaultClient,
Logger: logger.DefaultLogger,
@ -211,11 +110,8 @@ type StepOptions struct {
Requires []string
}
// StepOption func signature
type StepOption func(*StepOptions)
// NewStepOptions create new StepOptions struct
func NewStepOptions(opts ...StepOption) StepOptions {
func NewStepOptions(opts ...options.Option) StepOptions {
options := StepOptions{
Context: context.Background(),
}
@ -225,23 +121,16 @@ func NewStepOptions(opts ...StepOption) StepOptions {
return options
}
// StepID sets the step id for dag
func StepID(id string) StepOption {
return func(o *StepOptions) {
o.ID = id
// Requires specifies required steps
func Requires(steps ...string) options.Option {
return func(src interface{}) error {
return options.Set(src, steps, ".Requires")
}
}
// StepRequires specifies required steps
func StepRequires(steps ...string) StepOption {
return func(o *StepOptions) {
o.Requires = steps
}
}
// StepFallback set the step to run on error
func StepFallback(step string) StepOption {
return func(o *StepOptions) {
o.Fallback = step
// Fallback set the step to run on error
func Fallback(step string) options.Option {
return func(src interface{}) error {
return options.Set(src, step, ".Fallback")
}
}

10
logger/context.go
View File

@ -20,13 +20,3 @@ func NewContext(ctx context.Context, l Logger) context.Context {
}
return context.WithValue(ctx, loggerKey{}, l)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

11
logger/context_test.go
View File

@ -40,14 +40,3 @@ func TestNewContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

8
logger/default.go
View File

@ -9,6 +9,8 @@ import (
"strings"
"sync"
"time"
"go.unistack.org/micro/v4/options"
)
type defaultLogger struct {
@ -18,7 +20,7 @@ type defaultLogger struct {
}
// Init(opts...) should only overwrite provided options
func (l *defaultLogger) Init(opts ...Option) error {
func (l *defaultLogger) Init(opts ...options.Option) error {
l.Lock()
for _, o := range opts {
o(&l.opts)
@ -33,7 +35,7 @@ func (l *defaultLogger) String() string {
return "micro"
}
func (l *defaultLogger) Clone(opts ...Option) Logger {
func (l *defaultLogger) Clone(opts ...options.Option) Logger {
newopts := NewOptions(opts...)
oldopts := l.opts
for _, o := range opts {
@ -221,7 +223,7 @@ func (l *defaultLogger) Options() Options {
}
// NewLogger builds a new logger based on options
func NewLogger(opts ...Option) Logger {
func NewLogger(opts ...options.Option) Logger {
l := &defaultLogger{
opts: NewOptions(opts...),
}

8
logger/logger.go
View File

@ -4,6 +4,8 @@ package logger // import "go.unistack.org/micro/v4/logger"
import (
"context"
"os"
"go.unistack.org/micro/v4/options"
)
var (
@ -18,9 +20,9 @@ var (
// Logger is a generic logging interface
type Logger interface {
// Init initialises options
Init(opts ...Option) error
Init(opts ...options.Option) error
// Clone create logger copy with new options
Clone(opts ...Option) Logger
Clone(opts ...options.Option) Logger
// V compare provided verbosity level with current log level
V(level Level) bool
// Level sets the log level for logger
@ -130,7 +132,7 @@ func V(level Level) bool {
}
// Init initialize logger
func Init(opts ...Option) error {
func Init(opts ...options.Option) error {
return DefaultLogger.Init(opts...)
}

45
logger/options.go
View File

@ -4,10 +4,9 @@ import (
"context"
"io"
"os"
)
// Option func
type Option func(*Options)
"go.unistack.org/micro/v4/options"
)
// Options holds logger options
type Options struct {
@ -26,7 +25,7 @@ type Options struct {
}
// NewOptions creates new options struct
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Level: DefaultLevel,
Fields: make([]interface{}, 0, 6),
@ -41,43 +40,29 @@ func NewOptions(opts ...Option) Options {
}
// WithFields set default fields for the logger
func WithFields(fields ...interface{}) Option {
return func(o *Options) {
o.Fields = fields
func WithFields(fields ...interface{}) options.Option {
return func(src interface{}) error {
return options.Set(src, fields, ".Fields")
}
}
// WithLevel set default level for the logger
func WithLevel(level Level) Option {
return func(o *Options) {
o.Level = level
func WithLevel(lvl Level) options.Option {
return func(src interface{}) error {
return options.Set(src, lvl, ".Level")
}
}
// WithOutput set default output writer for the logger
func WithOutput(out io.Writer) Option {
return func(o *Options) {
o.Out = out
func WithOutput(out io.Writer) options.Option {
return func(src interface{}) error {
return options.Set(src, out, ".Out")
}
}
// WithCallerSkipCount set frame count to skip
func WithCallerSkipCount(c int) Option {
return func(o *Options) {
o.CallerSkipCount = c
}
}
// WithContext set context
func WithContext(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// WithName sets the name
func WithName(n string) Option {
return func(o *Options) {
o.Name = n
func WithCallerSkipCount(c int) options.Option {
return func(src interface{}) error {
return options.Set(src, c, ".CallerSkipCount")
}
}

102
logger/wrapper/wrapper.go
View File

@ -29,15 +29,6 @@ var (
return labels
}
// DefaultClientPublishObserver called by wrapper in client Publish
DefaultClientPublishObserver = func(ctx context.Context, msg client.Message, opts []client.PublishOption, err error) []string {
labels := []string{"endpoint", msg.Topic()}
if err != nil {
labels = append(labels, "error", err.Error())
}
return labels
}
// DefaultServerHandlerObserver called by wrapper in server Handler
DefaultServerHandlerObserver = func(ctx context.Context, req server.Request, rsp interface{}, err error) []string {
labels := []string{"service", req.Service(), "endpoint", req.Endpoint()}
@ -47,15 +38,6 @@ var (
return labels
}
// DefaultServerSubscriberObserver called by wrapper in server Subscriber
DefaultServerSubscriberObserver = func(ctx context.Context, msg server.Message, err error) []string {
labels := []string{"endpoint", msg.Topic()}
if err != nil {
labels = append(labels, "error", err.Error())
}
return labels
}
// DefaultClientCallFuncObserver called by wrapper in client CallFunc
DefaultClientCallFuncObserver = func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions, err error) []string {
labels := []string{"service", req.Service(), "endpoint", req.Endpoint()}
@ -72,7 +54,6 @@ var (
type lWrapper struct {
client.Client
serverHandler server.HandlerFunc
serverSubscriber server.SubscriberFunc
clientCallFunc client.CallFunc
opts Options
}
@ -82,14 +63,10 @@ type (
ClientCallObserver func(context.Context, client.Request, interface{}, []client.CallOption, error) []string
// ClientStreamObserver func signature
ClientStreamObserver func(context.Context, client.Request, []client.CallOption, client.Stream, error) []string
// ClientPublishObserver func signature
ClientPublishObserver func(context.Context, client.Message, []client.PublishOption, error) []string
// ClientCallFuncObserver func signature
ClientCallFuncObserver func(context.Context, string, client.Request, interface{}, client.CallOptions, error) []string
// ServerHandlerObserver func signature
ServerHandlerObserver func(context.Context, server.Request, interface{}, error) []string
// ServerSubscriberObserver func signature
ServerSubscriberObserver func(context.Context, server.Message, error) []string
)
// Options struct for wrapper
@ -98,14 +75,10 @@ type Options struct {
Logger logger.Logger
// ServerHandlerObservers funcs
ServerHandlerObservers []ServerHandlerObserver
// ServerSubscriberObservers funcs
ServerSubscriberObservers []ServerSubscriberObserver
// ClientCallObservers funcs
ClientCallObservers []ClientCallObserver
// ClientStreamObservers funcs
ClientStreamObservers []ClientStreamObserver
// ClientPublishObservers funcs
ClientPublishObservers []ClientPublishObserver
// ClientCallFuncObservers funcs
ClientCallFuncObservers []ClientCallFuncObserver
// SkipEndpoints
@ -126,10 +99,8 @@ func NewOptions(opts ...Option) Options {
Level: logger.TraceLevel,
ClientCallObservers: []ClientCallObserver{DefaultClientCallObserver},
ClientStreamObservers: []ClientStreamObserver{DefaultClientStreamObserver},
ClientPublishObservers: []ClientPublishObserver{DefaultClientPublishObserver},
ClientCallFuncObservers: []ClientCallFuncObserver{DefaultClientCallFuncObserver},
ServerHandlerObservers: []ServerHandlerObserver{DefaultServerHandlerObserver},
ServerSubscriberObservers: []ServerSubscriberObserver{DefaultServerSubscriberObserver},
SkipEndpoints: DefaultSkipEndpoints,
}
@ -175,13 +146,6 @@ func WithClientStreamObservers(ob ...ClientStreamObserver) Option {
}
}
// WithClientPublishObservers funcs
func WithClientPublishObservers(ob ...ClientPublishObserver) Option {
return func(o *Options) {
o.ClientPublishObservers = ob
}
}
// WithClientCallFuncObservers funcs
func WithClientCallFuncObservers(ob ...ClientCallFuncObserver) Option {
return func(o *Options) {
@ -196,13 +160,6 @@ func WithServerHandlerObservers(ob ...ServerHandlerObserver) Option {
}
}
// WithServerSubscriberObservers funcs
func WithServerSubscriberObservers(ob ...ServerSubscriberObserver) Option {
return func(o *Options) {
o.ServerSubscriberObservers = ob
}
}
// SkipEndpoins
func SkipEndpoints(eps ...string) Option {
return func(o *Options) {
@ -256,29 +213,6 @@ func (l *lWrapper) Stream(ctx context.Context, req client.Request, opts ...clien
return stream, err
}
func (l *lWrapper) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
err := l.Client.Publish(ctx, msg, opts...)
endpoint := msg.Topic()
for _, ep := range l.opts.SkipEndpoints {
if ep == endpoint {
return err
}
}
if !l.opts.Enabled {
return err
}
var labels []string
for _, o := range l.opts.ClientPublishObservers {
labels = append(labels, o(ctx, msg, opts, err)...)
}
l.opts.Logger.Fields(labels).Log(ctx, l.opts.Level)
return err
}
func (l *lWrapper) ServerHandler(ctx context.Context, req server.Request, rsp interface{}) error {
err := l.serverHandler(ctx, req, rsp)
@ -302,29 +236,6 @@ func (l *lWrapper) ServerHandler(ctx context.Context, req server.Request, rsp in
return err
}
func (l *lWrapper) ServerSubscriber(ctx context.Context, msg server.Message) error {
err := l.serverSubscriber(ctx, msg)
endpoint := msg.Topic()
for _, ep := range l.opts.SkipEndpoints {
if ep == endpoint {
return err
}
}
if !l.opts.Enabled {
return err
}
var labels []string
for _, o := range l.opts.ServerSubscriberObservers {
labels = append(labels, o(ctx, msg, err)...)
}
l.opts.Logger.Fields(labels).Log(ctx, l.opts.Level)
return err
}
// NewClientWrapper accepts an open options and returns a Client Wrapper
func NewClientWrapper(opts ...Option) client.Wrapper {
return func(c client.Client) client.Client {
@ -384,16 +295,3 @@ func NewServerHandlerWrapper(opts ...Option) server.HandlerWrapper {
return l.ServerHandler
}
}
// NewServerSubscriberWrapper accepts an options and returns a Subscriber Wrapper
func NewServerSubscriberWrapper(opts ...Option) server.SubscriberWrapper {
return func(h server.SubscriberFunc) server.SubscriberFunc {
options := NewOptions()
for _, o := range opts {
o(&options)
}
l := &lWrapper{opts: options, serverSubscriber: h}
return l.ServerSubscriber
}
}

10
meter/context.go
View File

@ -22,13 +22,3 @@ func NewContext(ctx context.Context, c Meter) context.Context {
}
return context.WithValue(ctx, meterKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

11
meter/context_test.go
View File

@ -40,14 +40,3 @@ func TestNewContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

10
meter/meter.go
View File

@ -7,6 +7,8 @@ import (
"strconv"
"strings"
"time"
"go.unistack.org/micro/v4/options"
)
var (
@ -31,9 +33,9 @@ type Meter interface {
// Name returns meter name
Name() string
// Init initialize meter
Init(opts ...Option) error
Init(opts ...options.Option) error
// Clone create meter copy with new options
Clone(opts ...Option) Meter
Clone(opts ...options.Option) Meter
// Counter get or create counter
Counter(name string, labels ...string) Counter
// FloatCounter get or create float counter
@ -41,7 +43,7 @@ type Meter interface {
// Gauge get or create gauge
Gauge(name string, fn func() float64, labels ...string) Gauge
// Set create new meter metrics set
Set(opts ...Option) Meter
Set(opts ...options.Option) Meter
// Histogram get or create histogram
Histogram(name string, labels ...string) Histogram
// Summary get or create summary
@ -49,7 +51,7 @@ type Meter interface {
// SummaryExt get or create summary with spcified quantiles and window time
SummaryExt(name string, window time.Duration, quantiles []float64, labels ...string) Summary
// Write writes metrics to io.Writer
Write(w io.Writer, opts ...Option) error
Write(w io.Writer, opts ...options.Option) error
// Options returns meter options
Options() Options
// String return meter type

12
meter/noop.go
View File

@ -3,6 +3,8 @@ package meter
import (
"io"
"time"
"go.unistack.org/micro/v4/options"
)
// NoopMeter is an noop implementation of Meter
@ -11,12 +13,12 @@ type noopMeter struct {
}
// NewMeter returns a configured noop reporter:
func NewMeter(opts ...Option) Meter {
func NewMeter(opts ...options.Option) Meter {
return &noopMeter{opts: NewOptions(opts...)}
}
// Clone return old meter with new options
func (r *noopMeter) Clone(opts ...Option) Meter {
func (r *noopMeter) Clone(opts ...options.Option) Meter {
options := r.opts
for _, o := range opts {
o(&options)
@ -29,7 +31,7 @@ func (r *noopMeter) Name() string {
}
// Init initialize options
func (r *noopMeter) Init(opts ...Option) error {
func (r *noopMeter) Init(opts ...options.Option) error {
for _, o := range opts {
o(&r.opts)
}
@ -67,7 +69,7 @@ func (r *noopMeter) Histogram(name string, labels ...string) Histogram {
}
// Set implements the Meter interface
func (r *noopMeter) Set(opts ...Option) Meter {
func (r *noopMeter) Set(opts ...options.Option) Meter {
m := &noopMeter{opts: r.opts}
for _, o := range opts {
@ -77,7 +79,7 @@ func (r *noopMeter) Set(opts ...Option) Meter {
return m
}
func (r *noopMeter) Write(w io.Writer, opts ...Option) error {
func (r *noopMeter) Write(_ io.Writer, _ ...options.Option) error {
return nil
}

79
meter/options.go
View File

@ -2,13 +2,13 @@ package meter
import (
"context"
"reflect"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/options"
rutil "go.unistack.org/micro/v4/util/reflect"
)
// Option powers the configuration for metrics implementations:
type Option func(*Options)
// Options for metrics implementations
type Options struct {
// Logger used for logging
@ -34,7 +34,7 @@ type Options struct {
}
// NewOptions prepares a set of options:
func NewOptions(opt ...Option) Options {
func NewOptions(opt ...options.Option) Options {
opts := Options{
Address: DefaultAddress,
Path: DefaultPath,
@ -52,37 +52,23 @@ func NewOptions(opt ...Option) Options {
}
// LabelPrefix sets the labels prefix
func LabelPrefix(pref string) Option {
return func(o *Options) {
o.LabelPrefix = pref
func LabelPrefix(pref string) options.Option {
return func(src interface{}) error {
return options.Set(src, pref, ".LabelPrefix")
}
}
// MetricPrefix sets the metric prefix
func MetricPrefix(pref string) Option {
return func(o *Options) {
o.MetricPrefix = pref
}
}
// Context sets the metrics context
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
func MetricPrefix(pref string) options.Option {
return func(src interface{}) error {
return options.Set(src, pref, ".MetricPrefix")
}
}
// Path used to serve metrics over HTTP
func Path(value string) Option {
return func(o *Options) {
o.Path = value
}
}
// Address is the listen address to serve metrics
func Address(value string) Option {
return func(o *Options) {
o.Address = value
func Path(path string) options.Option {
return func(src interface{}) error {
return options.Set(src, path, ".Path")
}
}
@ -95,37 +81,34 @@ func TimingObjectives(value map[float64]float64) Option {
}
*/
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Labels sets the meter labels
func Labels(ls ...string) Option {
return func(o *Options) {
o.Labels = append(o.Labels, ls...)
func Labels(ls ...string) options.Option {
return func(src interface{}) error {
v, err := options.Get(src, ".Labels")
if err != nil {
return err
} else if rutil.IsZero(v) {
v = reflect.MakeSlice(reflect.TypeOf(v), 0, len(ls)).Interface()
}
cv := reflect.ValueOf(v)
for _, l := range ls {
reflect.Append(cv, reflect.ValueOf(l))
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
err = options.Set(src, cv, ".Labels")
return err
}
}
// WriteProcessMetrics enable process metrics output for write
func WriteProcessMetrics(b bool) Option {
return func(o *Options) {
o.WriteProcessMetrics = b
func WriteProcessMetrics(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".WriteProcessMetrics")
}
}
// WriteFDMetrics enable fd metrics output for write
func WriteFDMetrics(b bool) Option {
return func(o *Options) {
o.WriteFDMetrics = b
func WriteFDMetrics(b bool) options.Option {
return func(src interface{}) error {
return options.Set(src, b, ".WriteFDMetrics")
}
}

45
meter/wrapper/wrapper.go
View File

@ -7,6 +7,7 @@ import (
"go.unistack.org/micro/v4/client"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/semconv"
"go.unistack.org/micro/v4/server"
)
@ -117,21 +118,21 @@ func (w *wrapper) CallFunc(ctx context.Context, addr string, req client.Request,
labels := make([]string, 0, 4)
labels = append(labels, labelEndpoint, endpoint)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Inc()
ts := time.Now()
err := w.callFunc(ctx, addr, req, rsp, opts)
te := time.Since(ts)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Dec()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Dec()
w.opts.Meter.Summary(ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(ClientRequestDurationSeconds, labels...).Update(te.Seconds())
w.opts.Meter.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
if err == nil {
labels = append(labels, labelStatus, labelSuccess)
} else {
labels = append(labels, labelStatus, labelFailure)
}
w.opts.Meter.Counter(ClientRequestTotal, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestTotal, labels...).Inc()
return err
}
@ -147,21 +148,21 @@ func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{},
labels := make([]string, 0, 4)
labels = append(labels, labelEndpoint, endpoint)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Inc()
ts := time.Now()
err := w.Client.Call(ctx, req, rsp, opts...)
te := time.Since(ts)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Dec()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Dec()
w.opts.Meter.Summary(ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(ClientRequestDurationSeconds, labels...).Update(te.Seconds())
w.opts.Meter.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
if err == nil {
labels = append(labels, labelStatus, labelSuccess)
} else {
labels = append(labels, labelStatus, labelFailure)
}
w.opts.Meter.Counter(ClientRequestTotal, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestTotal, labels...).Inc()
return err
}
@ -177,29 +178,25 @@ func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client
labels := make([]string, 0, 4)
labels = append(labels, labelEndpoint, endpoint)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Inc()
ts := time.Now()
stream, err := w.Client.Stream(ctx, req, opts...)
te := time.Since(ts)
w.opts.Meter.Counter(ClientRequestInflight, labels...).Dec()
w.opts.Meter.Counter(semconv.ClientRequestInflight, labels...).Dec()
w.opts.Meter.Summary(ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(ClientRequestDurationSeconds, labels...).Update(te.Seconds())
w.opts.Meter.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
if err == nil {
labels = append(labels, labelStatus, labelSuccess)
} else {
labels = append(labels, labelStatus, labelFailure)
}
w.opts.Meter.Counter(ClientRequestTotal, labels...).Inc()
w.opts.Meter.Counter(semconv.ClientRequestTotal, labels...).Inc()
return stream, err
}
func (w *wrapper) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
return w.Client.Publish(ctx, p, opts...)
}
// NewServerHandlerWrapper create new server handler wrapper
func NewServerHandlerWrapper(opts ...Option) server.HandlerWrapper {
handler := &wrapper{
@ -220,21 +217,21 @@ func (w *wrapper) HandlerFunc(fn server.HandlerFunc) server.HandlerFunc {
labels := make([]string, 0, 4)
labels = append(labels, labelEndpoint, endpoint)
w.opts.Meter.Counter(ServerRequestInflight, labels...).Inc()
w.opts.Meter.Counter(semconv.ServerRequestInflight, labels...).Inc()
ts := time.Now()
err := fn(ctx, req, rsp)
te := time.Since(ts)
w.opts.Meter.Counter(ServerRequestInflight, labels...).Dec()
w.opts.Meter.Counter(semconv.ServerRequestInflight, labels...).Dec()
w.opts.Meter.Summary(ServerRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(ServerRequestDurationSeconds, labels...).Update(te.Seconds())
w.opts.Meter.Summary(semconv.ServerRequestLatencyMicroseconds, labels...).Update(te.Seconds())
w.opts.Meter.Histogram(semconv.ServerRequestDurationSeconds, labels...).Update(te.Seconds())
if err == nil {
labels = append(labels, labelStatus, labelSuccess)
} else {
labels = append(labels, labelStatus, labelFailure)
}
w.opts.Meter.Counter(ServerRequestTotal, labels...).Inc()
w.opts.Meter.Counter(semconv.ServerRequestTotal, labels...).Inc()
return err
}

55
network/network.go
View File

@ -1,55 +0,0 @@
// Package network is for creating internetworks
package network // import "go.unistack.org/micro/v4/network"
import (
"go.unistack.org/micro/v4/client"
"go.unistack.org/micro/v4/server"
)
// Error is network node errors
type Error interface {
// Count is current count of errors
Count() int
// Msg is last error message
Msg() string
}
// Status is node status
type Status interface {
// Error reports error status
Error() Error
}
// Node is network node
type Node interface {
// Id is node id
Id() string
// Address is node bind address
Address() string
// Peers returns node peers
Peers() []Node
// Network is the network node is in
Network() Network
// Status returns node status
Status() Status
}
// Network is micro network
type Network interface {
// Node is network node
Node
// Initialise options
Init(...Option) error
// Options returns the network options
Options() Options
// Name of the network
Name() string
// Connect starts the resolver and tunnel server
Connect() error
// Close stops the tunnel and resolving
Close() error
// Client is micro client
Client() client.Client
// Server is micro server
Server() server.Server
}

135
network/options.go
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@ -1,135 +0,0 @@
package network
import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/network/tunnel"
"go.unistack.org/micro/v4/proxy"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/tracer"
"go.unistack.org/micro/v4/util/id"
)
// Option func
type Option func(*Options)
// Options configure network
type Options struct {
// Router used for routing
Router router.Router
// Proxy holds the proxy
Proxy proxy.Proxy
// Logger used for logging
Logger logger.Logger
// Meter used for metrics
Meter meter.Meter
// Tracer used for tracing
Tracer tracer.Tracer
// Tunnel used for transfer data
Tunnel tunnel.Tunnel
// ID of the node
ID string
// Name of the network
Name string
// Address to bind to
Address string
// Advertise sets the address to advertise
Advertise string
// Nodes is a list of nodes to connect to
Nodes []string
}
// ID sets the id of the network node
func ID(id string) Option {
return func(o *Options) {
o.ID = id
}
}
// Name sets the network name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}
// Address sets the network address
func Address(a string) Option {
return func(o *Options) {
o.Address = a
}
}
// Advertise sets the address to advertise
func Advertise(a string) Option {
return func(o *Options) {
o.Advertise = a
}
}
// Nodes is a list of nodes to connect to
func Nodes(n ...string) Option {
return func(o *Options) {
o.Nodes = n
}
}
// Tunnel sets the network tunnel
func Tunnel(t tunnel.Tunnel) Option {
return func(o *Options) {
o.Tunnel = t
}
}
// Router sets the network router
func Router(r router.Router) Option {
return func(o *Options) {
o.Router = r
}
}
// Proxy sets the network proxy
func Proxy(p proxy.Proxy) Option {
return func(o *Options) {
o.Proxy = p
}
}
// Logger sets the network logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// NewOptions returns network default options
func NewOptions(opts ...Option) Options {
options := Options{
ID: id.Must(),
Name: "go.micro",
Address: ":0",
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
}
for _, o := range opts {
o(&options)
}
return options
}

34
network/transport/context.go
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@ -1,34 +0,0 @@
package transport
import (
"context"
)
type transportKey struct{}
// FromContext get transport from context
func FromContext(ctx context.Context) (Transport, bool) {
if ctx == nil {
return nil, false
}
c, ok := ctx.Value(transportKey{}).(Transport)
return c, ok
}
// NewContext put transport in context
func NewContext(ctx context.Context, c Transport) context.Context {
if ctx == nil {
ctx = context.Background()
}
return context.WithValue(ctx, transportKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

258
network/transport/memory.go
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@ -1,258 +0,0 @@
package transport
import (
"context"
"errors"
"fmt"
"net"
"sync"
"time"
maddr "go.unistack.org/micro/v4/util/addr"
mnet "go.unistack.org/micro/v4/util/net"
"go.unistack.org/micro/v4/util/rand"
)
type memorySocket struct {
ctx context.Context
recv chan *Message
exit chan bool
lexit chan bool
send chan *Message
local string
remote string
timeout time.Duration
sync.RWMutex
}
type memoryClient struct {
*memorySocket
opts DialOptions
}
type memoryListener struct {
lopts ListenOptions
ctx context.Context
exit chan bool
conn chan *memorySocket
addr string
topts Options
sync.RWMutex
}
type memoryTransport struct {
listeners map[string]*memoryListener
opts Options
sync.RWMutex
}
func (ms *memorySocket) Recv(m *Message) error {
ms.RLock()
defer ms.RUnlock()
ctx := ms.ctx
if ms.timeout > 0 {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ms.ctx, ms.timeout)
defer cancel()
}
select {
case <-ctx.Done():
return ctx.Err()
case <-ms.exit:
return errors.New("connection closed")
case <-ms.lexit:
return errors.New("server connection closed")
case cm := <-ms.recv:
*m = *cm
}
return nil
}
func (ms *memorySocket) Local() string {
return ms.local
}
func (ms *memorySocket) Remote() string {
return ms.remote
}
func (ms *memorySocket) Send(m *Message) error {
ms.RLock()
defer ms.RUnlock()
ctx := ms.ctx
if ms.timeout > 0 {
var cancel context.CancelFunc
ctx, cancel = context.WithTimeout(ms.ctx, ms.timeout)
defer cancel()
}
select {
case <-ctx.Done():
return ctx.Err()
case <-ms.exit:
return errors.New("connection closed")
case <-ms.lexit:
return errors.New("server connection closed")
case ms.send <- m:
}
return nil
}
func (ms *memorySocket) Close() error {
ms.Lock()
defer ms.Unlock()
select {
case <-ms.exit:
return nil
default:
close(ms.exit)
}
return nil
}
func (m *memoryListener) Addr() string {
return m.addr
}
func (m *memoryListener) Close() error {
m.Lock()
defer m.Unlock()
select {
case <-m.exit:
return nil
default:
close(m.exit)
}
return nil
}
func (m *memoryListener) Accept(fn func(Socket)) error {
for {
select {
case <-m.exit:
return nil
case c := <-m.conn:
go fn(&memorySocket{
lexit: c.lexit,
exit: c.exit,
send: c.recv,
recv: c.send,
local: c.Remote(),
remote: c.Local(),
timeout: m.topts.Timeout,
ctx: m.topts.Context,
})
}
}
}
func (m *memoryTransport) Dial(ctx context.Context, addr string, opts ...DialOption) (Client, error) {
m.RLock()
defer m.RUnlock()
listener, ok := m.listeners[addr]
if !ok {
return nil, errors.New("could not dial " + addr)
}
options := NewDialOptions(opts...)
client := &memoryClient{
&memorySocket{
send: make(chan *Message),
recv: make(chan *Message),
exit: make(chan bool),
lexit: listener.exit,
local: addr,
remote: addr,
timeout: m.opts.Timeout,
ctx: m.opts.Context,
},
options,
}
// pseudo connect
select {
case <-listener.exit:
return nil, errors.New("connection error")
case listener.conn <- client.memorySocket:
}
return client, nil
}
func (m *memoryTransport) Listen(ctx context.Context, addr string, opts ...ListenOption) (Listener, error) {
m.Lock()
defer m.Unlock()
options := NewListenOptions(opts...)
host, port, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
addr, err = maddr.Extract(host)
if err != nil {
return nil, err
}
// if zero port then randomly assign one
if len(port) > 0 && port == "0" {
var rng rand.Rand
i := rng.Intn(20000)
port = fmt.Sprintf("%d", 10000+i)
}
// set addr with port
addr = mnet.HostPort(addr, port)
if _, ok := m.listeners[addr]; ok {
return nil, errors.New("already listening on " + addr)
}
listener := &memoryListener{
lopts: options,
topts: m.opts,
addr: addr,
conn: make(chan *memorySocket),
exit: make(chan bool),
ctx: m.opts.Context,
}
m.listeners[addr] = listener
return listener, nil
}
func (m *memoryTransport) Init(opts ...Option) error {
for _, o := range opts {
o(&m.opts)
}
return nil
}
func (m *memoryTransport) Options() Options {
return m.opts
}
func (m *memoryTransport) String() string {
return "memory"
}
func (m *memoryTransport) Name() string {
return m.opts.Name
}
// NewTransport returns new memory transport with options
func NewTransport(opts ...Option) Transport {
options := NewOptions(opts...)
return &memoryTransport{
opts: options,
listeners: make(map[string]*memoryListener),
}
}

100
network/transport/memory_test.go
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@ -1,100 +0,0 @@
package transport
import (
"context"
"os"
"testing"
)
func TestMemoryTransport(t *testing.T) {
tr := NewTransport()
ctx := context.Background()
// bind / listen
l, err := tr.Listen(ctx, "127.0.0.1:8080")
if err != nil {
t.Fatalf("Unexpected error listening %v", err)
}
defer l.Close()
cherr := make(chan error, 1)
// accept
go func() {
if nerr := l.Accept(func(sock Socket) {
for {
var m Message
if rerr := sock.Recv(&m); rerr != nil {
cherr <- rerr
return
}
if len(os.Getenv("INTEGRATION_TESTS")) == 0 {
t.Logf("Server Received %s", string(m.Body))
}
if cerr := sock.Send(&Message{
Body: []byte(`pong`),
}); cerr != nil {
cherr <- cerr
return
}
}
}); nerr != nil {
cherr <- err
}
}()
// dial
c, err := tr.Dial(ctx, "127.0.0.1:8080")
if err != nil {
t.Fatalf("Unexpected error dialing %v", err)
}
defer c.Close()
select {
case err := <-cherr:
t.Fatal(err)
default:
// send <=> receive
for i := 0; i < 3; i++ {
if err := c.Send(&Message{
Body: []byte(`ping`),
}); err != nil {
return
}
var m Message
if err := c.Recv(&m); err != nil {
return
}
if len(os.Getenv("INTEGRATION_TESTS")) == 0 {
t.Logf("Client Received %s", string(m.Body))
}
}
}
}
func TestListener(t *testing.T) {
tr := NewTransport()
ctx := context.Background()
// bind / listen on random port
l, err := tr.Listen(ctx, ":0")
if err != nil {
t.Fatalf("Unexpected error listening %v", err)
}
defer l.Close()
// try again
l2, err := tr.Listen(ctx, ":0")
if err != nil {
t.Fatalf("Unexpected error listening %v", err)
}
defer l2.Close()
// now make sure it still fails
l3, err := tr.Listen(ctx, ":8080")
if err != nil {
t.Fatalf("Unexpected error listening %v", err)
}
defer l3.Close()
if _, err := tr.Listen(ctx, ":8080"); err == nil {
t.Fatal("Expected error binding to :8080 got nil")
}
}

175
network/transport/options.go
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@ -1,175 +0,0 @@
package transport
import (
"context"
"crypto/tls"
"time"
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/tracer"
)
// Options struct holds the transport options
type Options struct {
// Meter used for metrics
Meter meter.Meter
// Tracer used for tracing
Tracer tracer.Tracer
// Codec used for marshal/unmarshal messages
Codec codec.Codec
// Logger used for logging
Logger logger.Logger
// Context holds external options
Context context.Context
// TLSConfig holds tls.TLSConfig options
TLSConfig *tls.Config
// Name holds the transport name
Name string
// Addrs holds the transport addrs
Addrs []string
// Timeout holds the timeout
Timeout time.Duration
}
// NewOptions returns new options
func NewOptions(opts ...Option) Options {
options := Options{
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
Context: context.Background(),
}
for _, o := range opts {
o(&options)
}
return options
}
// DialOptions struct
type DialOptions struct {
// Context holds the external options
Context context.Context
// Timeout holds the timeout
Timeout time.Duration
// Stream flag
Stream bool
}
// NewDialOptions returns new DialOptions
func NewDialOptions(opts ...DialOption) DialOptions {
options := DialOptions{
Timeout: DefaultDialTimeout,
Context: context.Background(),
}
for _, o := range opts {
o(&options)
}
return options
}
// ListenOptions struct
type ListenOptions struct {
// TODO: add tls options when listening
// Currently set in global options
// Context holds the external options
Context context.Context
// TLSConfig holds the *tls.Config options
TLSConfig *tls.Config
}
// NewListenOptions returns new ListenOptions
func NewListenOptions(opts ...ListenOption) ListenOptions {
options := ListenOptions{
Context: context.Background(),
}
for _, o := range opts {
o(&options)
}
return options
}
// Addrs to use for transport
func Addrs(addrs ...string) Option {
return func(o *Options) {
o.Addrs = addrs
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Context sets the context
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// Codec sets the codec used for encoding where the transport
// does not support message headers
func Codec(c codec.Codec) Option {
return func(o *Options) {
o.Codec = c
}
}
// Timeout sets the timeout for Send/Recv execution
func Timeout(t time.Duration) Option {
return func(o *Options) {
o.Timeout = t
}
}
// TLSConfig to be used for the transport.
func TLSConfig(t *tls.Config) Option {
return func(o *Options) {
o.TLSConfig = t
}
}
// WithStream indicates whether this is a streaming connection
func WithStream() DialOption {
return func(o *DialOptions) {
o.Stream = true
}
}
// WithTimeout used when dialling the remote side
func WithTimeout(d time.Duration) DialOption {
return func(o *DialOptions) {
o.Timeout = d
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}

63
network/transport/transport.go
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@ -1,63 +0,0 @@
// Package transport is an interface for synchronous connection based communication
package transport // import "go.unistack.org/micro/v4/network/transport"
import (
"context"
"time"
"go.unistack.org/micro/v4/metadata"
)
var (
// DefaultTransport is the global default transport
DefaultTransport Transport = NewTransport()
// DefaultDialTimeout the default dial timeout
DefaultDialTimeout = time.Second * 5
)
// Transport is an interface which is used for communication between
// services. It uses connection based socket send/recv semantics and
// has various implementations; http, grpc, quic.
type Transport interface {
Init(...Option) error
Options() Options
Dial(ctx context.Context, addr string, opts ...DialOption) (Client, error)
Listen(ctx context.Context, addr string, opts ...ListenOption) (Listener, error)
String() string
}
// Message is used to transfer data
type Message struct {
Header metadata.Metadata
Body []byte
}
// Socket bastraction interface
type Socket interface {
Recv(*Message) error
Send(*Message) error
Close() error
Local() string
Remote() string
}
// Client is the socket owner
type Client interface {
Socket
}
// Listener is the interface for stream oriented messaging
type Listener interface {
Addr() string
Close() error
Accept(func(Socket)) error
}
// Option is the option signature
type Option func(*Options)
// DialOption is the option signature
type DialOption func(*DialOptions)
// ListenOption is the option signature
type ListenOption func(*ListenOptions)

356
network/tunnel/broker/broker.go
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@ -1,356 +0,0 @@
// Package broker is a tunnel broker
package broker // import "go.unistack.org/micro/v4/network/tunnel/broker"
import (
"context"
"fmt"
"go.unistack.org/micro/v4/broker"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/network/tunnel"
)
type tunBroker struct {
tunnel tunnel.Tunnel
opts broker.Options
}
type tunSubscriber struct {
listener tunnel.Listener
handler broker.Handler
closed chan bool
topic string
opts broker.SubscribeOptions
}
type tunBatchSubscriber struct {
listener tunnel.Listener
handler broker.BatchHandler
closed chan bool
topic string
opts broker.SubscribeOptions
}
type tunEvent struct {
err error
message *broker.Message
topic string
}
// used to access tunnel from options context
type (
tunnelKey struct{}
tunnelAddr struct{}
)
func (t *tunBroker) Init(opts ...broker.Option) error {
for _, o := range opts {
o(&t.opts)
}
return nil
}
func (t *tunBroker) Name() string {
return t.opts.Name
}
func (t *tunBroker) Options() broker.Options {
return t.opts
}
func (t *tunBroker) Address() string {
return t.tunnel.Address()
}
func (t *tunBroker) Connect(ctx context.Context) error {
return t.tunnel.Connect(ctx)
}
func (t *tunBroker) Disconnect(ctx context.Context) error {
return t.tunnel.Close(ctx)
}
func (t *tunBroker) BatchPublish(ctx context.Context, msgs []*broker.Message, opts ...broker.PublishOption) error {
// TODO: this is probably inefficient, we might want to just maintain an open connection
// it may be easier to add broadcast to the tunnel
topicMap := make(map[string]tunnel.Session)
var err error
for _, msg := range msgs {
topic, _ := msg.Header.Get(metadata.HeaderTopic)
c, ok := topicMap[topic]
if !ok {
c, err = t.tunnel.Dial(ctx, topic, tunnel.DialMode(tunnel.Multicast))
if err != nil {
return err
}
defer c.Close()
topicMap[topic] = c
}
if err = c.Send(&transport.Message{
Header: msg.Header,
Body: msg.Body,
}); err != nil {
// msg.SetError(err)
return err
}
}
return nil
}
func (t *tunBroker) Publish(ctx context.Context, topic string, m *broker.Message, opts ...broker.PublishOption) error {
// TODO: this is probably inefficient, we might want to just maintain an open connection
// it may be easier to add broadcast to the tunnel
c, err := t.tunnel.Dial(ctx, topic, tunnel.DialMode(tunnel.Multicast))
if err != nil {
return err
}
defer c.Close()
return c.Send(&transport.Message{
Header: m.Header,
Body: m.Body,
})
}
func (t *tunBroker) BatchSubscribe(ctx context.Context, topic string, h broker.BatchHandler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
l, err := t.tunnel.Listen(ctx, topic, tunnel.ListenMode(tunnel.Multicast))
if err != nil {
return nil, err
}
tunSub := &tunBatchSubscriber{
topic: topic,
handler: h,
opts: broker.NewSubscribeOptions(opts...),
closed: make(chan bool),
listener: l,
}
// start processing
go tunSub.run()
return tunSub, nil
}
func (t *tunBroker) Subscribe(ctx context.Context, topic string, h broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
l, err := t.tunnel.Listen(ctx, topic, tunnel.ListenMode(tunnel.Multicast))
if err != nil {
return nil, err
}
tunSub := &tunSubscriber{
topic: topic,
handler: h,
opts: broker.NewSubscribeOptions(opts...),
closed: make(chan bool),
listener: l,
}
// start processing
go tunSub.run()
return tunSub, nil
}
func (t *tunBroker) String() string {
return "tunnel"
}
func (t *tunBatchSubscriber) run() {
for {
// accept a new connection
c, err := t.listener.Accept()
if err != nil {
select {
case <-t.closed:
return
default:
continue
}
}
// receive message
m := new(transport.Message)
if err := c.Recv(m); err != nil {
if logger.V(logger.ErrorLevel) {
logger.Error(t.opts.Context, err.Error())
}
if err = c.Close(); err != nil {
if logger.V(logger.ErrorLevel) {
logger.Error(t.opts.Context, err.Error())
}
}
continue
}
// close the connection
c.Close()
evts := broker.Events{&tunEvent{
topic: t.topic,
message: &broker.Message{
Header: m.Header,
Body: m.Body,
},
}}
// handle the message
go func() {
_ = t.handler(evts)
}()
}
}
func (t *tunSubscriber) run() {
for {
// accept a new connection
c, err := t.listener.Accept()
if err != nil {
select {
case <-t.closed:
return
default:
continue
}
}
// receive message
m := new(transport.Message)
if err := c.Recv(m); err != nil {
if logger.V(logger.ErrorLevel) {
logger.Error(t.opts.Context, err.Error())
}
if err = c.Close(); err != nil {
if logger.V(logger.ErrorLevel) {
logger.Error(t.opts.Context, err.Error())
}
}
continue
}
// close the connection
c.Close()
// handle the message
go func() {
_ = t.handler(&tunEvent{
topic: t.topic,
message: &broker.Message{
Header: m.Header,
Body: m.Body,
},
})
}()
}
}
func (t *tunBatchSubscriber) Options() broker.SubscribeOptions {
return t.opts
}
func (t *tunBatchSubscriber) Topic() string {
return t.topic
}
func (t *tunBatchSubscriber) Unsubscribe(ctx context.Context) error {
select {
case <-t.closed:
return nil
default:
close(t.closed)
return t.listener.Close()
}
}
func (t *tunSubscriber) Options() broker.SubscribeOptions {
return t.opts
}
func (t *tunSubscriber) Topic() string {
return t.topic
}
func (t *tunSubscriber) Unsubscribe(ctx context.Context) error {
select {
case <-t.closed:
return nil
default:
close(t.closed)
return t.listener.Close()
}
}
func (t *tunEvent) Topic() string {
return t.topic
}
func (t *tunEvent) Message() *broker.Message {
return t.message
}
func (t *tunEvent) Ack() error {
return nil
}
func (t *tunEvent) Error() error {
return t.err
}
func (t *tunEvent) SetError(err error) {
t.err = err
}
// NewBroker returns new tunnel broker
func NewBroker(opts ...broker.Option) (broker.Broker, error) {
options := broker.NewOptions(opts...)
t, ok := options.Context.Value(tunnelKey{}).(tunnel.Tunnel)
if !ok {
return nil, fmt.Errorf("tunnel not set")
}
a, ok := options.Context.Value(tunnelAddr{}).(string)
if ok {
// initialise address
if err := t.Init(tunnel.Address(a)); err != nil {
return nil, err
}
}
if len(options.Addrs) > 0 {
// initialise nodes
if err := t.Init(tunnel.Nodes(options.Addrs...)); err != nil {
return nil, err
}
}
return &tunBroker{
opts: options,
tunnel: t,
}, nil
}
// WithAddress sets the tunnel address
func WithAddress(a string) broker.Option {
return func(o *broker.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, tunnelAddr{}, a)
}
}
// WithTunnel sets the internal tunnel
func WithTunnel(t tunnel.Tunnel) broker.Option {
return func(o *broker.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, tunnelKey{}, t)
}
}

192
network/tunnel/options.go
View File

@ -1,192 +0,0 @@
package tunnel
import (
"time"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/tracer"
"go.unistack.org/micro/v4/util/id"
)
var (
// DefaultAddress is default tunnel bind address
DefaultAddress = ":0"
// DefaultToken the shared default token
DefaultToken = "go.micro.tunnel"
)
// Option func signature
type Option func(*Options)
// Options provides network configuration options
type Options struct {
// Logger used for logging
Logger logger.Logger
// Meter used for metrics
Meter meter.Meter
// Tracer used for tracing
Tracer tracer.Tracer
// Transport used for communication
Transport transport.Transport
// Token the shared auth token
Token string
// Name holds the tunnel name
Name string
// ID holds the tunnel id
ID string
// Address holds the tunnel address
Address string
// Nodes holds the tunnel nodes
Nodes []string
}
// DialOption func
type DialOption func(*DialOptions)
// DialOptions provides dial options
type DialOptions struct {
// Link specifies the link to use
Link string
// specify mode of the session
Mode Mode
// Wait for connection to be accepted
Wait bool
// the dial timeout
Timeout time.Duration
}
// ListenOption func
type ListenOption func(*ListenOptions)
// ListenOptions provides listen options
type ListenOptions struct {
// Mode specify mode of the session
Mode Mode
// Timeout the read timeout
Timeout time.Duration
}
// ID sets the tunnel id
func ID(id string) Option {
return func(o *Options) {
o.ID = id
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Address sets the tunnel address
func Address(a string) Option {
return func(o *Options) {
o.Address = a
}
}
// Nodes specify remote network nodes
func Nodes(n ...string) Option {
return func(o *Options) {
o.Nodes = n
}
}
// Token sets the shared token for auth
func Token(t string) Option {
return func(o *Options) {
o.Token = t
}
}
// Transport listens for incoming connections
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
// ListenMode option
func ListenMode(m Mode) ListenOption {
return func(o *ListenOptions) {
o.Mode = m
}
}
// ListenTimeout for reads and writes on the listener session
func ListenTimeout(t time.Duration) ListenOption {
return func(o *ListenOptions) {
o.Timeout = t
}
}
// DialMode multicast sets the multicast option to send only to those mapped
func DialMode(m Mode) DialOption {
return func(o *DialOptions) {
o.Mode = m
}
}
// DialTimeout sets the dial timeout of the connection
func DialTimeout(t time.Duration) DialOption {
return func(o *DialOptions) {
o.Timeout = t
}
}
// DialLink specifies the link to pin this connection to.
// This is not applicable if the multicast option is set.
func DialLink(id string) DialOption {
return func(o *DialOptions) {
o.Link = id
}
}
// DialWait specifies whether to wait for the connection
// to be accepted before returning the session
func DialWait(b bool) DialOption {
return func(o *DialOptions) {
o.Wait = b
}
}
// NewOptions returns router default options with filled values
func NewOptions(opts ...Option) Options {
options := Options{
ID: id.Must(),
Address: DefaultAddress,
Token: DefaultToken,
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
}
for _, o := range opts {
o(&options)
}
return options
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}

30
network/tunnel/transport/listener.go
View File

@ -1,30 +0,0 @@
package transport
import (
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/network/tunnel"
)
type tunListener struct {
l tunnel.Listener
}
func (t *tunListener) Addr() string {
return t.l.Channel()
}
func (t *tunListener) Close() error {
return t.l.Close()
}
func (t *tunListener) Accept(fn func(socket transport.Socket)) error {
for {
// accept connection
c, err := t.l.Accept()
if err != nil {
return err
}
// execute the function
go fn(c)
}
}

113
network/tunnel/transport/transport.go
View File

@ -1,113 +0,0 @@
// Package transport provides a tunnel transport
package transport // import "go.unistack.org/micro/v4/network/tunnel/transport"
import (
"context"
"fmt"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/network/tunnel"
)
type tunTransport struct {
tunnel tunnel.Tunnel
options transport.Options
}
type tunnelKey struct{}
type transportKey struct{}
func (t *tunTransport) Init(opts ...transport.Option) error {
for _, o := range opts {
o(&t.options)
}
// close the existing tunnel
if t.tunnel != nil {
t.tunnel.Close(context.TODO())
}
// get the tunnel
tun, ok := t.options.Context.Value(tunnelKey{}).(tunnel.Tunnel)
if !ok {
return fmt.Errorf("tunnel not set")
}
// get the transport
tr, ok := t.options.Context.Value(transportKey{}).(transport.Transport)
if ok {
_ = tun.Init(tunnel.Transport(tr))
}
// set the tunnel
t.tunnel = tun
return nil
}
func (t *tunTransport) Dial(ctx context.Context, addr string, opts ...transport.DialOption) (transport.Client, error) {
if err := t.tunnel.Connect(ctx); err != nil {
return nil, err
}
c, err := t.tunnel.Dial(ctx, addr)
if err != nil {
return nil, err
}
return c, nil
}
func (t *tunTransport) Listen(ctx context.Context, addr string, opts ...transport.ListenOption) (transport.Listener, error) {
if err := t.tunnel.Connect(ctx); err != nil {
return nil, err
}
l, err := t.tunnel.Listen(ctx, addr)
if err != nil {
return nil, err
}
return &tunListener{l}, nil
}
func (t *tunTransport) Options() transport.Options {
return t.options
}
func (t *tunTransport) String() string {
return "tunnel"
}
// NewTransport honours the initialiser used in
func NewTransport(opts ...transport.Option) transport.Transport {
t := &tunTransport{
options: transport.Options{},
}
// initialise
// t.Init(opts...)
return t
}
// WithTunnel sets the internal tunnel
func WithTunnel(t tunnel.Tunnel) transport.Option {
return func(o *transport.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, tunnelKey{}, t)
}
}
// WithTransport sets the internal transport
func WithTransport(t transport.Transport) transport.Option {
return func(o *transport.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, transportKey{}, t)
}
}

106
network/tunnel/tunnel.go
View File

@ -1,106 +0,0 @@
// Package tunnel provides gre network tunnelling
package tunnel // import "go.unistack.org/micro/v4/network/transport/tunnel"
import (
"context"
"errors"
"time"
"go.unistack.org/micro/v4/network/transport"
)
// DefaultTunnel contains default tunnel implementation
var DefaultTunnel Tunnel
const (
// Unicast send over one link
Unicast Mode = iota
// Multicast send to all channel listeners
Multicast
// Broadcast send to all links
Broadcast
)
var (
// DefaultDialTimeout is the dial timeout if none is specified
DefaultDialTimeout = time.Second * 5
// ErrDialTimeout is returned by a call to Dial where the timeout occurs
ErrDialTimeout = errors.New("dial timeout")
// ErrDiscoverChan is returned when we failed to receive the "announce" back from a discovery
ErrDiscoverChan = errors.New("failed to discover channel")
// ErrLinkNotFound is returned when a link is specified at dial time and does not exist
ErrLinkNotFound = errors.New("link not found")
// ErrLinkDisconnected is returned when a link we attempt to send to is disconnected
ErrLinkDisconnected = errors.New("link not connected")
// ErrLinkLoopback is returned when attempting to send an outbound message over loopback link
ErrLinkLoopback = errors.New("link is loopback")
// ErrLinkRemote is returned when attempting to send a loopback message over remote link
ErrLinkRemote = errors.New("link is remote")
// ErrReadTimeout is a timeout on session.Recv
ErrReadTimeout = errors.New("read timeout")
// ErrDecryptingData is for when theres a nonce error
ErrDecryptingData = errors.New("error decrypting data")
)
// Mode of the session
type Mode uint8
// Tunnel creates a gre tunnel on top of the micro/transport.
// It establishes multiple streams using the Micro-Tunnel-Channel header
// and Micro-Tunnel-Session header. The tunnel id is a hash of
// the address being requested.
type Tunnel interface {
// Init initializes tunnel with options
Init(opts ...Option) error
// Address returns the address the tunnel is listening on
Address() string
// Connect connects the tunnel
Connect(ctx context.Context) error
// Close closes the tunnel
Close(ctx context.Context) error
// Links returns all the links the tunnel is connected to
Links() []Link
// Dial allows a client to connect to a channel
Dial(ctx context.Context, channel string, opts ...DialOption) (Session, error)
// Listen allows to accept connections on a channel
Listen(ctx context.Context, channel string, opts ...ListenOption) (Listener, error)
// String returns the name of the tunnel implementation
String() string
}
// Link represents internal links to the tunnel
type Link interface {
// Id returns the link unique Id
Id() string
// Delay is the current load on the link (lower is better)
Delay() int64
// Length returns the roundtrip time as nanoseconds (lower is better)
Length() int64
// Current transfer rate as bits per second (lower is better)
Rate() float64
// Is this a loopback link
Loopback() bool
// State of the link: connected/closed/error
State() string
// honours transport socket
transport.Socket
}
// Listener provides similar constructs to the transport.Listener
type Listener interface {
Accept() (Session, error)
Channel() string
Close() error
}
// Session is a unique session created when dialling or accepting connections on the tunnel
type Session interface {
// The unique session id
Id() string
// The channel name
Channel() string
// The link the session is on
Link() string
// a transport socket
transport.Socket
}

29
options.go
View File

@ -11,6 +11,7 @@ import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/server"
@ -201,7 +202,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, srv := range o.Servers {
for _, os := range lopts.servers {
if srv.Name() == os || all {
if err = srv.Init(server.Logger(l)); err != nil {
if err = srv.Init(options.Logger(l)); err != nil {
return err
}
}
@ -210,7 +211,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, cli := range o.Clients {
for _, oc := range lopts.clients {
if cli.Name() == oc || all {
if err = cli.Init(client.Logger(l)); err != nil {
if err = cli.Init(options.Logger(l)); err != nil {
return err
}
}
@ -219,7 +220,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, brk := range o.Brokers {
for _, ob := range lopts.brokers {
if brk.Name() == ob || all {
if err = brk.Init(broker.Logger(l)); err != nil {
if err = brk.Init(options.Logger(l)); err != nil {
return err
}
}
@ -237,7 +238,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, str := range o.Stores {
for _, or := range lopts.stores {
if str.Name() == or || all {
if err = str.Init(store.Logger(l)); err != nil {
if err = str.Init(options.Logger(l)); err != nil {
return err
}
}
@ -246,7 +247,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, mtr := range o.Meters {
for _, or := range lopts.meters {
if mtr.Name() == or || all {
if err = mtr.Init(meter.Logger(l)); err != nil {
if err = mtr.Init(options.Logger(l)); err != nil {
return err
}
}
@ -255,7 +256,7 @@ func Logger(l logger.Logger, opts ...LoggerOption) Option {
for _, trc := range o.Tracers {
for _, ot := range lopts.tracers {
if trc.Name() == ot || all {
if err = trc.Init(tracer.Logger(l)); err != nil {
if err = trc.Init(options.Logger(l)); err != nil {
return err
}
}
@ -329,7 +330,7 @@ func Register(r register.Register, opts ...RegisterOption) Option {
for _, srv := range o.Servers {
for _, os := range ropts.servers {
if srv.Name() == os || all {
if err = srv.Init(server.Register(r)); err != nil {
if err = srv.Init(options.Register(r)); err != nil {
return err
}
}
@ -338,7 +339,7 @@ func Register(r register.Register, opts ...RegisterOption) Option {
for _, brk := range o.Brokers {
for _, os := range ropts.brokers {
if brk.Name() == os || all {
if err = brk.Init(broker.Register(r)); err != nil {
if err = brk.Init(options.Register(r)); err != nil {
return err
}
}
@ -395,7 +396,7 @@ func Tracer(t tracer.Tracer, opts ...TracerOption) Option {
for _, srv := range o.Servers {
for _, os := range topts.servers {
if srv.Name() == os || all {
if err = srv.Init(server.Tracer(t)); err != nil {
if err = srv.Init(options.Tracer(t)); err != nil {
return err
}
}
@ -404,7 +405,7 @@ func Tracer(t tracer.Tracer, opts ...TracerOption) Option {
for _, cli := range o.Clients {
for _, os := range topts.clients {
if cli.Name() == os || all {
if err = cli.Init(client.Tracer(t)); err != nil {
if err = cli.Init(options.Tracer(t)); err != nil {
return err
}
}
@ -413,7 +414,7 @@ func Tracer(t tracer.Tracer, opts ...TracerOption) Option {
for _, str := range o.Stores {
for _, os := range topts.stores {
if str.Name() == os || all {
if err = str.Init(store.Tracer(t)); err != nil {
if err = str.Init(options.Tracer(t)); err != nil {
return err
}
}
@ -422,7 +423,7 @@ func Tracer(t tracer.Tracer, opts ...TracerOption) Option {
for _, brk := range o.Brokers {
for _, os := range topts.brokers {
if brk.Name() == os || all {
if err = brk.Init(broker.Tracer(t)); err != nil {
if err = brk.Init(options.Tracer(t)); err != nil {
return err
}
}
@ -521,7 +522,7 @@ func Router(r router.Router, opts ...RouterOption) Option {
for _, cli := range o.Clients {
for _, os := range ropts.clients {
if cli.Name() == os || all {
if err = cli.Init(client.Router(r)); err != nil {
if err = cli.Init(options.Router(r)); err != nil {
return err
}
}
@ -556,7 +557,7 @@ func Address(addr string) Option {
default:
return fmt.Errorf("cant set same address for multiple servers")
}
return o.Servers[0].Init(server.Address(addr))
return o.Servers[0].Init(options.Address(addr))
}
}

196
options/options.go Normal file
View File

@ -0,0 +1,196 @@
package options
import (
"context"
"crypto/tls"
"reflect"
"time"
"go.unistack.org/micro/v4/metadata"
rutil "go.unistack.org/micro/v4/util/reflect"
)
// Option func signature
type Option func(interface{}) error
// Set assign value to struct by its path
func Set(src interface{}, dst interface{}, path string) error {
return rutil.SetFieldByPath(src, dst, path)
}
// Get returns value from struct by its path
func Get(src interface{}, path string) (interface{}, error) {
return rutil.StructFieldByPath(src, path)
}
// Name set Name value
func Name(v ...string) Option {
return func(src interface{}) error {
return Set(src, v, ".Name")
}
}
// Address set Address value to single string or slice of strings
func Address(v ...string) Option {
return func(src interface{}) error {
return Set(src, v, ".Address")
}
}
// Broker set Broker value
func Broker(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Broker")
}
}
// Logger set Logger value
func Logger(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Logger")
}
}
// Meter set Meter value
func Meter(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Meter")
}
}
// Tracer set Tracer value
func Tracer(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Tracer")
}
}
// Store set Store value
func Store(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Store")
}
}
// Register set Register value
func Register(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Register")
}
}
// Router set Router value
func Router(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Router")
}
}
// Codec set Codec value
func Codec(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Codec")
}
}
// Client set Client value
func Client(v interface{}) Option {
return func(src interface{}) error {
return Set(src, v, ".Client")
}
}
// Codecs to be used to encode/decode requests for a given content type
func Codecs(ct string, v interface{}) Option {
return func(src interface{}) error {
cm, err := Get(src, ".Codecs")
if err != nil {
return err
} else if rutil.IsZero(cm) {
cm = reflect.MakeMap(reflect.TypeOf(cm)).Interface()
}
cv := reflect.ValueOf(cm)
cv.SetMapIndex(reflect.ValueOf(ct), reflect.ValueOf(v))
return Set(src, cv.Interface(), ".Codecs")
}
}
// Context set Context value
func Context(v context.Context) Option {
return func(src interface{}) error {
return Set(src, v, ".Context")
}
}
// TLSConfig set TLSConfig value
func TLSConfig(v *tls.Config) Option {
return func(src interface{}) error {
return Set(src, v, ".TLSConfig")
}
}
func ContextOption(k, v interface{}) Option {
return func(src interface{}) error {
ctx, err := Get(src, ".Context")
if err != nil {
return err
}
if ctx == nil {
ctx = context.Background()
}
err = Set(src, context.WithValue(ctx.(context.Context), k, v), ".Context")
return err
}
}
// ContentType pass ContentType for message data
func ContentType(ct string) Option {
return func(src interface{}) error {
return Set(src, ct, ".ContentType")
}
}
// Metadata pass additional metadata
func Metadata(md metadata.Metadata) Option {
return func(src interface{}) error {
return Set(src, metadata.Copy(md), ".Metadata")
}
}
// Namespace to use
func Namespace(ns string) Option {
return func(src interface{}) error {
return Set(src, ns, ".Namespace")
}
}
// Labels sets the labels
func Labels(ls ...interface{}) Option {
return func(src interface{}) error {
v, err := Get(src, ".Labels")
if err != nil {
return err
} else if rutil.IsZero(v) {
v = reflect.MakeSlice(reflect.TypeOf(v), 0, len(ls)).Interface()
}
cv := reflect.ValueOf(v)
for _, l := range ls {
cv = reflect.Append(cv, reflect.ValueOf(l))
}
return Set(src, cv.Interface(), ".Labels")
}
}
// Timeout pass timeout time.Duration
func Timeout(td time.Duration) Option {
return func(src interface{}) error {
return Set(src, td, ".Timeout")
}
}
// ID sets the step ID
func StepID(id string) Option {
return func(src interface{}) error {
return Set(src, id, ".ID")
}
}

86
options/options_test.go Normal file
View File

@ -0,0 +1,86 @@
package options_test
import (
"testing"
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/options"
)
func TestAddress(t *testing.T) {
var err error
type s struct {
Address []string
}
src := &s{}
var opts []options.Option
opts = append(opts, options.Address("host:port"))
for _, o := range opts {
if err = o(src); err != nil {
t.Fatal(err)
}
}
if src.Address[0] != "host:port" {
t.Fatal("failed to set Address")
}
}
func TestCodecs(t *testing.T) {
var err error
type s struct {
Codecs map[string]codec.Codec
}
src := &s{}
var opts []options.Option
c := codec.NewCodec()
opts = append(opts, options.Codecs("text/html", c))
for _, o := range opts {
if err = o(src); err != nil {
t.Fatal(err)
}
}
for k, v := range src.Codecs {
if k != "text/html" || v != c {
continue
}
return
}
t.Fatalf("failed to set Codecs")
}
func TestLabels(t *testing.T) {
type str1 struct {
Labels []string
}
type str2 struct {
Labels []interface{}
}
x1 := &str1{}
if err := options.Labels("one", "two")(x1); err != nil {
t.Fatal(err)
}
if len(x1.Labels) != 2 {
t.Fatal("failed to set labels")
}
x2 := &str2{}
if err := options.Labels("key", "val")(x2); err != nil {
t.Fatal(err)
}
if len(x2.Labels) != 2 {
t.Fatal("failed to set labels")
}
if x2.Labels[0] != "key" {
t.Fatal("failed to set labels")
}
}

98
proxy/options.go
View File

@ -1,98 +0,0 @@
// Package proxy is a transparent proxy built on the micro/server
package proxy
import (
"go.unistack.org/micro/v4/client"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/tracer"
)
// Options for proxy
type Options struct {
// Tracer used for tracing
Tracer tracer.Tracer
// Client for communication
Client client.Client
// Router for routing
Router router.Router
// Logger used for logging
Logger logger.Logger
// Meter used for metrics
Meter meter.Meter
// Links holds the communication links
Links map[string]client.Client
// Endpoint holds the destination address
Endpoint string
}
// Option func signature
type Option func(o *Options)
// NewOptions returns new options struct that filled by opts
func NewOptions(opts ...Option) Options {
options := Options{
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
}
for _, o := range opts {
o(&options)
}
return options
}
// WithEndpoint sets a proxy endpoint
func WithEndpoint(e string) Option {
return func(o *Options) {
o.Endpoint = e
}
}
// WithClient sets the client
func WithClient(c client.Client) Option {
return func(o *Options) {
o.Client = c
}
}
// WithRouter specifies the router to use
func WithRouter(r router.Router) Option {
return func(o *Options) {
o.Router = r
}
}
// WithLogger specifies the logger to use
func WithLogger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// WithMeter specifies the meter to use
func WithMeter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// WithLink sets a link for outbound requests
func WithLink(name string, c client.Client) Option {
return func(o *Options) {
if o.Links == nil {
o.Links = make(map[string]client.Client)
}
o.Links[name] = c
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}

21
proxy/proxy.go
View File

@ -1,21 +0,0 @@
// Package proxy is a transparent proxy built on the micro/server
package proxy // import "go.unistack.org/micro/v4/proxy"
import (
"context"
"go.unistack.org/micro/v4/server"
)
// DefaultEndpoint holds default proxy address
var DefaultEndpoint = "localhost:9090"
// Proxy can be used as a proxy server for micro services
type Proxy interface {
// ProcessMessage handles inbound messages
ProcessMessage(context.Context, server.Message) error
// ServeRequest handles inbound requests
ServeRequest(context.Context, server.Request, server.Response) error
// Name of the proxy protocol
String() string
}

20
semconv/broker.go Normal file
View File

@ -0,0 +1,20 @@
package semconv
var (
// PublishMessageDurationSeconds specifies meter metric name
PublishMessageDurationSeconds = "publish_message_duration_seconds"
// PublishMessageLatencyMicroseconds specifies meter metric name
PublishMessageLatencyMicroseconds = "publish_message_latency_microseconds"
// PublishMessageTotal specifies meter metric name
PublishMessageTotal = "publish_message_total"
// PublishMessageInflight specifies meter metric name
PublishMessageInflight = "publish_message_inflight"
// SubscribeMessageDurationSeconds specifies meter metric name
SubscribeMessageDurationSeconds = "subscribe_message_duration_seconds"
// SubscribeMessageLatencyMicroseconds specifies meter metric name
SubscribeMessageLatencyMicroseconds = "subscribe_message_latency_microseconds"
// SubscribeMessageTotal specifies meter metric name
SubscribeMessageTotal = "subscribe_message_total"
// SubscribeMessageInflight specifies meter metric name
SubscribeMessageInflight = "subscribe_message_inflight"
)

12
semconv/client.go Normal file
View File

@ -0,0 +1,12 @@
package semconv
var (
// ClientRequestDurationSeconds specifies meter metric name
ClientRequestDurationSeconds = "client_request_duration_seconds"
// ClientRequestLatencyMicroseconds specifies meter metric name
ClientRequestLatencyMicroseconds = "client_request_latency_microseconds"
// ClientRequestTotal specifies meter metric name
ClientRequestTotal = "client_request_total"
// ClientRequestInflight specifies meter metric name
ClientRequestInflight = "client_request_inflight"
)

12
semconv/server.go Normal file
View File

@ -0,0 +1,12 @@
package semconv
var (
// ServerRequestDurationSeconds specifies meter metric name
ServerRequestDurationSeconds = "server_request_duration_seconds"
// ServerRequestLatencyMicroseconds specifies meter metric name
ServerRequestLatencyMicroseconds = "server_request_latency_microseconds"
// ServerRequestTotal specifies meter metric name
ServerRequestTotal = "server_request_total"
// ServerRequestInflight specifies meter metric name
ServerRequestInflight = "server_request_inflight"
)

20
server/context.go
View File

@ -22,23 +22,3 @@ func NewContext(ctx context.Context, s Server) context.Context {
}
return context.WithValue(ctx, serverKey{}, s)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetHandlerOption returns a function to setup a context with given value
func SetHandlerOption(k, v interface{}) HandlerOption {
return func(o *HandlerOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

11
server/context_test.go
View File

@ -40,14 +40,3 @@ func TestNewContext(t *testing.T) {
t.Fatal("NewContext not works")
}
}
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}
}

43
server/noop.go
View File

@ -8,6 +8,7 @@ import (
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
maddr "go.unistack.org/micro/v4/util/addr"
mnet "go.unistack.org/micro/v4/util/net"
@ -19,15 +20,11 @@ var DefaultCodecs = map[string]codec.Codec{
"application/octet-stream": codec.NewCodec(),
}
const (
defaultContentType = "application/json"
)
type noopServer struct {
h Handler
h *rpcHandler
wg *sync.WaitGroup
rsvc *register.Service
handlers map[string]Handler
handlers map[string]*rpcHandler
exit chan chan error
opts Options
sync.RWMutex
@ -36,10 +33,10 @@ type noopServer struct {
}
// NewServer returns new noop server
func NewServer(opts ...Option) Server {
func NewServer(opts ...options.Option) Server {
n := &noopServer{opts: NewOptions(opts...)}
if n.handlers == nil {
n.handlers = make(map[string]Handler)
n.handlers = make(map[string]*rpcHandler)
}
if n.exit == nil {
n.exit = make(chan chan error)
@ -47,18 +44,8 @@ func NewServer(opts ...Option) Server {
return n
}
func (n *noopServer) newCodec(contentType string) (codec.Codec, error) {
if cf, ok := n.opts.Codecs[contentType]; ok {
return cf, nil
}
if cf, ok := DefaultCodecs[contentType]; ok {
return cf, nil
}
return nil, codec.ErrUnknownContentType
}
func (n *noopServer) Handle(handler Handler) error {
n.h = handler
func (n *noopServer) Handle(h interface{}, opts ...options.Option) error {
n.h = newRPCHandler(h, opts...)
return nil
}
@ -66,17 +53,13 @@ func (n *noopServer) Name() string {
return n.opts.Name
}
func (n *noopServer) NewHandler(h interface{}, opts ...HandlerOption) Handler {
return newRPCHandler(h, opts...)
}
func (n *noopServer) Init(opts ...Option) error {
func (n *noopServer) Init(opts ...options.Option) error {
for _, o := range opts {
o(&n.opts)
}
if n.handlers == nil {
n.handlers = make(map[string]Handler, 1)
n.handlers = make(map[string]*rpcHandler, 1)
}
if n.exit == nil {
@ -339,14 +322,14 @@ func (n *noopServer) Stop() error {
}
type rpcHandler struct {
opts HandlerOptions
opts HandleOptions
handler interface{}
name string
endpoints []*register.Endpoint
}
func newRPCHandler(handler interface{}, opts ...HandlerOption) Handler {
options := NewHandlerOptions(opts...)
func newRPCHandler(handler interface{}, opts ...options.Option) *rpcHandler {
options := NewHandleOptions(opts...)
typ := reflect.TypeOf(handler)
hdlr := reflect.ValueOf(handler)
@ -386,6 +369,6 @@ func (r *rpcHandler) Endpoints() []*register.Endpoint {
return r.endpoints
}
func (r *rpcHandler) Options() HandlerOptions {
func (r *rpcHandler) Options() HandleOptions {
return r.opts
}

202
server/options.go
View File

@ -11,27 +11,12 @@ import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/tracer"
"go.unistack.org/micro/v4/util/id"
)
var (
// ServerRequestDurationSeconds specifies meter metric name
ServerRequestDurationSeconds = "server_request_duration_seconds"
// ServerRequestLatencyMicroseconds specifies meter metric name
ServerRequestLatencyMicroseconds = "server_request_latency_microseconds"
// ServerRequestTotal specifies meter metric name
ServerRequestTotal = "server_request_total"
// ServerRequestInflight specifies meter metric name
ServerRequestInflight = "server_request_inflight"
)
// Option func
type Option func(*Options)
// Options server struct
type Options struct {
// Context holds the external options and can be used for server shutdown
@ -44,8 +29,6 @@ type Options struct {
Logger logger.Logger
// Meter holds the meter
Meter meter.Meter
// Transport holds the transport
Transport transport.Transport
// Listener may be passed if already created
Listener net.Listener
// Wait group
@ -70,8 +53,6 @@ type Options struct {
Advertise string
// Version holds the server version
Version string
// HdlrWrappers holds the handler wrappers
HdlrWrappers []HandlerWrapper
// RegisterAttempts holds the number of register attempts before error
RegisterAttempts int
// RegisterInterval holds he interval for re-register
@ -82,12 +63,12 @@ type Options struct {
MaxConn int
// DeregisterAttempts holds the number of deregister attempts before error
DeregisterAttempts int
// Hooks may contains HandlerWrapper or Server func wrapper
// Hooks may contains HandleWrapper or Server func wrapper
Hooks options.Hooks
}
// NewOptions returns new options struct with default or passed values
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Codecs: make(map[string]codec.Codec),
Context: context.Background(),
@ -99,12 +80,10 @@ func NewOptions(opts ...Option) Options {
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
Register: register.DefaultRegister,
Transport: transport.DefaultTransport,
Address: DefaultAddress,
Name: DefaultName,
Version: DefaultVersion,
ID: id.Must(),
Namespace: DefaultNamespace,
}
for _, o := range opts {
@ -114,140 +93,45 @@ func NewOptions(opts ...Option) Options {
return options
}
// Name sets the server name option
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}
// Namespace to register handlers in
func Namespace(n string) Option {
return func(o *Options) {
o.Namespace = n
}
}
// Logger sets the logger option
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter option
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// ID unique server id
func ID(id string) Option {
return func(o *Options) {
o.ID = id
func ID(id string) options.Option {
return func(src interface{}) error {
return options.Set(src, id, ".ID")
}
}
// Version of the service
func Version(v string) Option {
return func(o *Options) {
o.Version = v
}
}
// Address to bind to - host:port
func Address(a string) Option {
return func(o *Options) {
o.Address = a
func Version(v string) options.Option {
return func(src interface{}) error {
return options.Set(src, v, ".Version")
}
}
// Advertise the address to advertise for discovery - host:port
func Advertise(a string) Option {
return func(o *Options) {
o.Advertise = a
}
}
// Codec to use to encode/decode requests for a given content type
func Codec(contentType string, c codec.Codec) Option {
return func(o *Options) {
o.Codecs[contentType] = c
}
}
// Context specifies a context for the service.
// Can be used to signal shutdown of the service
// Can be used for extra option values.
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// Register used for discovery
func Register(r register.Register) Option {
return func(o *Options) {
o.Register = r
}
}
// Tracer mechanism for distributed tracking
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}
// Transport mechanism for communication e.g http, rabbitmq, etc
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
// Metadata associated with the server
func Metadata(md metadata.Metadata) Option {
return func(o *Options) {
o.Metadata = metadata.Copy(md)
func Advertise(a string) options.Option {
return func(src interface{}) error {
return options.Set(src, a, ".Advertise")
}
}
// RegisterCheck run func before register service
func RegisterCheck(fn func(context.Context) error) Option {
return func(o *Options) {
o.RegisterCheck = fn
func RegisterCheck(fn func(context.Context) error) options.Option {
return func(src interface{}) error {
return options.Set(src, fn, ".RegisterCheck")
}
}
// RegisterTTL registers service with a TTL
func RegisterTTL(t time.Duration) Option {
return func(o *Options) {
o.RegisterTTL = t
func RegisterTTL(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".RegisterTTL")
}
}
// RegisterInterval registers service with at interval
func RegisterInterval(t time.Duration) Option {
return func(o *Options) {
o.RegisterInterval = t
}
}
// TLSConfig specifies a *tls.Config
func TLSConfig(t *tls.Config) Option {
return func(o *Options) {
// set the internal tls
o.TLSConfig = t
// set the default transport if one is not
// already set. Required for Init call below.
// set the transport tls
_ = o.Transport.Init(
transport.TLSConfig(t),
)
func RegisterInterval(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".RegisterInterval")
}
}
@ -255,50 +139,40 @@ func TLSConfig(t *tls.Config) Option {
// If `wg` is nil, server only wait for completion of rpc handler.
// For user need finer grained control, pass a concrete `wg` here, server will
// wait against it on stop.
func Wait(wg *sync.WaitGroup) Option {
return func(o *Options) {
func Wait(wg *sync.WaitGroup) options.Option {
if wg == nil {
wg = new(sync.WaitGroup)
}
o.Wait = wg
}
}
// WrapHandler adds a handler Wrapper to a list of options passed into the server
func WrapHandler(w HandlerWrapper) Option {
return func(o *Options) {
o.HdlrWrappers = append(o.HdlrWrappers, w)
return func(src interface{}) error {
return options.Set(src, wg, ".Wait")
}
}
// MaxConn specifies maximum number of max simultaneous connections to server
func MaxConn(n int) Option {
return func(o *Options) {
o.MaxConn = n
func MaxConn(n int) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".MaxConn")
}
}
// Listener specifies the net.Listener to use instead of the default
func Listener(l net.Listener) Option {
return func(o *Options) {
o.Listener = l
func Listener(nl net.Listener) options.Option {
return func(src interface{}) error {
return options.Set(src, nl, ".Listener")
}
}
// HandlerOption func
type HandlerOption func(*HandlerOptions)
// HandlerOptions struct
type HandlerOptions struct {
// HandleOptions struct
type HandleOptions struct {
// Context holds external options
Context context.Context
// Metadata for handler
Metadata map[string]metadata.Metadata
}
// NewHandlerOptions creates new HandlerOptions
func NewHandlerOptions(opts ...HandlerOption) HandlerOptions {
options := HandlerOptions{
// NewHandleOptions creates new HandleOptions
func NewHandleOptions(opts ...options.Option) HandleOptions {
options := HandleOptions{
Context: context.Background(),
Metadata: make(map[string]metadata.Metadata),
}
@ -309,11 +183,3 @@ func NewHandlerOptions(opts ...HandlerOption) HandlerOptions {
return options
}
// EndpointMetadata is a Handler option that allows metadata to be added to
// individual endpoints.
func EndpointMetadata(name string, md metadata.Metadata) HandlerOption {
return func(o *HandlerOptions) {
o.Metadata[name] = metadata.Copy(md)
}
}

32
server/server.go
View File

@ -7,7 +7,7 @@ import (
"go.unistack.org/micro/v4/codec"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/options"
)
// DefaultServer default server
@ -26,9 +26,7 @@ var (
DefaultRegisterInterval = time.Second * 30
// DefaultRegisterTTL holds register record ttl, must be multiple of DefaultRegisterInterval
DefaultRegisterTTL = time.Second * 90
// DefaultNamespace will be used if no namespace passed
DefaultNamespace = "micro"
// DefaultMaxMsgSize holds default max msg ssize
// DefaultMaxMsgSize holds default max msg size
DefaultMaxMsgSize = 1024 * 1024 * 4 // 4Mb
// DefaultMaxMsgRecvSize holds default max recv size
DefaultMaxMsgRecvSize = 1024 * 1024 * 4 // 4Mb
@ -41,13 +39,11 @@ type Server interface {
// Name returns server name
Name() string
// Initialise options
Init(...Option) error
Init(...options.Option) error
// Retrieve the options
Options() Options
// Register a handler
Handle(h Handler) error
// Create a new handler
NewHandler(h interface{}, opts ...HandlerOption) Handler
// Create and register new handler
Handle(h interface{}, opts ...options.Option) error
// Start the server
Start() error
// Stop the server
@ -110,21 +106,3 @@ type Stream interface {
// Close closes the stream
Close() error
}
// Handler interface represents a request handler. It's generated
// by passing any type of public concrete object with endpoints into server.NewHandler.
// Most will pass in a struct.
//
// Example:
//
// type Greeter struct {}
//
// func (g *Greeter) Hello(context, request, response) error {
// return nil
// }
type Handler interface {
Name() string
Handler() interface{}
Endpoints() []*register.Endpoint
Options() HandlerOptions
}

17
service.go
View File

@ -10,6 +10,7 @@ import (
"go.unistack.org/micro/v4/config"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/server"
@ -62,8 +63,8 @@ type Service interface {
}
// RegisterHandler is syntactic sugar for registering a handler
func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error {
return s.Handle(s.NewHandler(h, opts...))
func RegisterHandler(s server.Server, h interface{}, opts ...options.Option) error {
return s.Handle(h, opts...)
}
type service struct {
@ -99,13 +100,13 @@ func (s *service) Init(opts ...Option) error {
// skip config as the struct not passed
continue
}
if err = cfg.Init(config.Context(cfg.Options().Context)); err != nil {
if err = cfg.Init(options.Context(cfg.Options().Context)); err != nil {
return err
}
}
for _, log := range s.opts.Loggers {
if err = log.Init(logger.WithContext(log.Options().Context)); err != nil {
if err = log.Init(options.Context(log.Options().Context)); err != nil {
return err
}
}
@ -117,25 +118,25 @@ func (s *service) Init(opts ...Option) error {
}
for _, brk := range s.opts.Brokers {
if err = brk.Init(broker.Context(brk.Options().Context)); err != nil {
if err = brk.Init(options.Context(brk.Options().Context)); err != nil {
return err
}
}
for _, str := range s.opts.Stores {
if err = str.Init(store.Context(str.Options().Context)); err != nil {
if err = str.Init(options.Context(str.Options().Context)); err != nil {
return err
}
}
for _, srv := range s.opts.Servers {
if err = srv.Init(server.Context(srv.Options().Context)); err != nil {
if err = srv.Init(options.Context(srv.Options().Context)); err != nil {
return err
}
}
for _, cli := range s.opts.Clients {
if err = cli.Init(client.Context(cli.Options().Context)); err != nil {
if err = cli.Init(options.Context(cli.Options().Context)); err != nil {
return err
}
}

3
service_test.go
View File

@ -9,6 +9,7 @@ import (
"go.unistack.org/micro/v4/config"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/register"
"go.unistack.org/micro/v4/router"
"go.unistack.org/micro/v4/server"
@ -37,7 +38,7 @@ func TestRegisterHandler(t *testing.T) {
type args struct {
s server.Server
h interface{}
opts []server.HandlerOption
opts []options.Option
}
h := struct{}{}
tests := []struct {

60
store/context.go
View File

@ -22,63 +22,3 @@ func NewContext(ctx context.Context, c Store) context.Context {
}
return context.WithValue(ctx, storeKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetReadOption returns a function to setup a context with given value
func SetReadOption(k, v interface{}) ReadOption {
return func(o *ReadOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetWriteOption returns a function to setup a context with given value
func SetWriteOption(k, v interface{}) WriteOption {
return func(o *WriteOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetListOption returns a function to setup a context with given value
func SetListOption(k, v interface{}) ListOption {
return func(o *ListOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetDeleteOption returns a function to setup a context with given value
func SetDeleteOption(k, v interface{}) DeleteOption {
return func(o *DeleteOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}
// SetExistsOption returns a function to setup a context with given value
func SetExistsOption(k, v interface{}) ExistsOption {
return func(o *ExistsOptions) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

7
store/context_test.go
View File

@ -3,6 +3,8 @@ package store
import (
"context"
"testing"
"go.unistack.org/micro/v4/options"
)
func TestFromNilContext(t *testing.T) {
@ -43,10 +45,7 @@ func TestNewContext(t *testing.T) {
func TestSetOption(t *testing.T) {
type key struct{}
o := SetOption(key{}, "test")
opts := &Options{}
o(opts)
opts := NewOptions(options.ContextOption(key{}, "test"))
if v, ok := opts.Context.Value(key{}).(string); !ok || v == "" {
t.Fatal("SetOption not works")
}

15
store/memory.go
View File

@ -7,10 +7,11 @@ import (
"time"
"github.com/patrickmn/go-cache"
"go.unistack.org/micro/v4/options"
)
// NewStore returns a memory store
func NewStore(opts ...Option) Store {
func NewStore(opts ...options.Option) Store {
return &memoryStore{
opts: NewOptions(opts...),
store: cache.New(cache.NoExpiration, 5*time.Minute),
@ -100,7 +101,7 @@ func (m *memoryStore) list(prefix string, limit, offset uint) []string {
return allKeys
}
func (m *memoryStore) Init(opts ...Option) error {
func (m *memoryStore) Init(opts ...options.Option) error {
for _, o := range opts {
o(&m.opts)
}
@ -115,7 +116,7 @@ func (m *memoryStore) Name() string {
return m.opts.Name
}
func (m *memoryStore) Exists(ctx context.Context, key string, opts ...ExistsOption) error {
func (m *memoryStore) Exists(ctx context.Context, key string, opts ...options.Option) error {
options := NewExistsOptions(opts...)
if options.Namespace == "" {
options.Namespace = m.opts.Namespace
@ -123,7 +124,7 @@ func (m *memoryStore) Exists(ctx context.Context, key string, opts ...ExistsOpti
return m.exists(options.Namespace, key)
}
func (m *memoryStore) Read(ctx context.Context, key string, val interface{}, opts ...ReadOption) error {
func (m *memoryStore) Read(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
options := NewReadOptions(opts...)
if options.Namespace == "" {
options.Namespace = m.opts.Namespace
@ -131,7 +132,7 @@ func (m *memoryStore) Read(ctx context.Context, key string, val interface{}, opt
return m.get(options.Namespace, key, val)
}
func (m *memoryStore) Write(ctx context.Context, key string, val interface{}, opts ...WriteOption) error {
func (m *memoryStore) Write(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
options := NewWriteOptions(opts...)
if options.Namespace == "" {
options.Namespace = m.opts.Namespace
@ -151,7 +152,7 @@ func (m *memoryStore) Write(ctx context.Context, key string, val interface{}, op
return nil
}
func (m *memoryStore) Delete(ctx context.Context, key string, opts ...DeleteOption) error {
func (m *memoryStore) Delete(ctx context.Context, key string, opts ...options.Option) error {
options := NewDeleteOptions(opts...)
if options.Namespace == "" {
options.Namespace = m.opts.Namespace
@ -165,7 +166,7 @@ func (m *memoryStore) Options() Options {
return m.opts
}
func (m *memoryStore) List(ctx context.Context, opts ...ListOption) ([]string, error) {
func (m *memoryStore) List(ctx context.Context, opts ...options.Option) ([]string, error) {
options := NewListOptions(opts...)
if options.Namespace == "" {
options.Namespace = m.opts.Namespace

229
store/options.go
View File

@ -9,6 +9,7 @@ import (
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/metadata"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/tracer"
)
@ -32,16 +33,14 @@ type Options struct {
Namespace string
// Separator used as key parts separator
Separator string
// Addrs contains store address
Addrs []string
// Wrappers store wrapper that called before actual functions
// Wrappers []Wrapper
// Address contains store address
Address []string
// Timeout specifies timeout duration for all operations
Timeout time.Duration
}
// NewOptions creates options struct
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Logger: logger.DefaultLogger,
Context: context.Background(),
@ -56,85 +55,17 @@ func NewOptions(opts ...Option) Options {
return options
}
// Option sets values in Options
type Option func(o *Options)
// TLSConfig specifies a *tls.Config
func TLSConfig(t *tls.Config) Option {
return func(o *Options) {
o.TLSConfig = t
}
}
// Context pass context to store
func Context(ctx context.Context) Option {
return func(o *Options) {
o.Context = ctx
}
}
// Codec sets the codec
func Codec(c codec.Codec) Option {
return func(o *Options) {
o.Codec = c
}
}
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// Meter sets the meter
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// Name the name of the store
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}
// Separator the value used as key parts separator
func Separator(s string) Option {
return func(o *Options) {
o.Separator = s
}
}
// Namespace sets namespace of the store
func Namespace(ns string) Option {
return func(o *Options) {
o.Namespace = ns
}
}
// Tracer sets the tracer
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
func Separator(s string) options.Option {
return func(src interface{}) error {
return options.Set(src, s, "Separator")
}
}
// Timeout sets the timeout
func Timeout(td time.Duration) Option {
return func(o *Options) {
o.Timeout = td
}
}
// Addrs contains the addresses or other connection information of the backing storage.
// For example, an etcd implementation would contain the nodes of the cluster.
// A SQL implementation could contain one or more connection strings.
func Addrs(addrs ...string) Option {
return func(o *Options) {
o.Addrs = addrs
func Timeout(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".Timeout")
}
}
@ -147,7 +78,7 @@ type ReadOptions struct {
}
// NewReadOptions fills ReadOptions struct with opts slice
func NewReadOptions(opts ...ReadOption) ReadOptions {
func NewReadOptions(opts ...options.Option) ReadOptions {
options := ReadOptions{}
for _, o := range opts {
o(&options)
@ -155,23 +86,6 @@ func NewReadOptions(opts ...ReadOption) ReadOptions {
return options
}
// ReadOption sets values in ReadOptions
type ReadOption func(r *ReadOptions)
// ReadContext pass context.Context to ReadOptions
func ReadContext(ctx context.Context) ReadOption {
return func(o *ReadOptions) {
o.Context = ctx
}
}
// ReadNamespace pass namespace to ReadOptions
func ReadNamespace(ns string) ReadOption {
return func(o *ReadOptions) {
o.Namespace = ns
}
}
// WriteOptions configures an individual Write operation
type WriteOptions struct {
// Context holds external options
@ -185,7 +99,7 @@ type WriteOptions struct {
}
// NewWriteOptions fills WriteOptions struct with opts slice
func NewWriteOptions(opts ...WriteOption) WriteOptions {
func NewWriteOptions(opts ...options.Option) WriteOptions {
options := WriteOptions{}
for _, o := range opts {
o(&options)
@ -193,34 +107,17 @@ func NewWriteOptions(opts ...WriteOption) WriteOptions {
return options
}
// WriteOption sets values in WriteOptions
type WriteOption func(w *WriteOptions)
// WriteContext pass context.Context to wirte options
func WriteContext(ctx context.Context) WriteOption {
return func(o *WriteOptions) {
o.Context = ctx
}
}
// WriteMetadata add metadata.Metadata
func WriteMetadata(md metadata.Metadata) WriteOption {
return func(o *WriteOptions) {
o.Metadata = metadata.Copy(md)
func WriteMetadata(md metadata.Metadata) options.Option {
return func(src interface{}) error {
return options.Set(src, metadata.Copy(md), ".Metadata")
}
}
// WriteTTL is the time the record expires
func WriteTTL(d time.Duration) WriteOption {
return func(o *WriteOptions) {
o.TTL = d
}
}
// WriteNamespace pass namespace to write options
func WriteNamespace(ns string) WriteOption {
return func(o *WriteOptions) {
o.Namespace = ns
func WriteTTL(td time.Duration) options.Option {
return func(src interface{}) error {
return options.Set(src, td, ".TTL")
}
}
@ -233,7 +130,7 @@ type DeleteOptions struct {
}
// NewDeleteOptions fills DeleteOptions struct with opts slice
func NewDeleteOptions(opts ...DeleteOption) DeleteOptions {
func NewDeleteOptions(opts ...options.Option) DeleteOptions {
options := DeleteOptions{}
for _, o := range opts {
o(&options)
@ -241,23 +138,6 @@ func NewDeleteOptions(opts ...DeleteOption) DeleteOptions {
return options
}
// DeleteOption sets values in DeleteOptions
type DeleteOption func(d *DeleteOptions)
// DeleteContext pass context.Context to delete options
func DeleteContext(ctx context.Context) DeleteOption {
return func(o *DeleteOptions) {
o.Context = ctx
}
}
// DeleteNamespace pass namespace to delete options
func DeleteNamespace(ns string) DeleteOption {
return func(o *DeleteOptions) {
o.Namespace = ns
}
}
// ListOptions configures an individual List operation
type ListOptions struct {
Context context.Context
@ -269,7 +149,7 @@ type ListOptions struct {
}
// NewListOptions fills ListOptions struct with opts slice
func NewListOptions(opts ...ListOption) ListOptions {
func NewListOptions(opts ...options.Option) ListOptions {
options := ListOptions{}
for _, o := range opts {
o(&options)
@ -277,48 +157,31 @@ func NewListOptions(opts ...ListOption) ListOptions {
return options
}
// ListOption sets values in ListOptions
type ListOption func(l *ListOptions)
// ListContext pass context.Context to list options
func ListContext(ctx context.Context) ListOption {
return func(o *ListOptions) {
o.Context = ctx
}
}
// ListPrefix returns all keys that are prefixed with key
func ListPrefix(s string) ListOption {
return func(o *ListOptions) {
o.Prefix = s
func ListPrefix(s string) options.Option {
return func(src interface{}) error {
return options.Set(src, s, ".Prefix")
}
}
// ListSuffix returns all keys that end with key
func ListSuffix(s string) ListOption {
return func(o *ListOptions) {
o.Suffix = s
func ListSuffix(s string) options.Option {
return func(src interface{}) error {
return options.Set(src, s, ".Prefix")
}
}
// ListLimit limits the number of returned keys
func ListLimit(n uint) ListOption {
return func(o *ListOptions) {
o.Limit = n
func ListLimit(n uint) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".Limit")
}
}
// ListOffset use with Limit for pagination
func ListOffset(n uint) ListOption {
return func(o *ListOptions) {
o.Offset = n
}
}
// ListNamespace pass namespace to list options
func ListNamespace(ns string) ListOption {
return func(o *ListOptions) {
o.Namespace = ns
func ListOffset(n uint) options.Option {
return func(src interface{}) error {
return options.Set(src, n, ".Offset")
}
}
@ -330,11 +193,8 @@ type ExistsOptions struct {
Namespace string
}
// ExistsOption specifies Exists call options
type ExistsOption func(*ExistsOptions)
// NewExistsOptions helper for Exists method
func NewExistsOptions(opts ...ExistsOption) ExistsOptions {
func NewExistsOptions(opts ...options.Option) ExistsOptions {
options := ExistsOptions{
Context: context.Background(),
}
@ -343,26 +203,3 @@ func NewExistsOptions(opts ...ExistsOption) ExistsOptions {
}
return options
}
// ExistsContext pass context.Context to exist options
func ExistsContext(ctx context.Context) ExistsOption {
return func(o *ExistsOptions) {
o.Context = ctx
}
}
// ExistsNamespace pass namespace to exist options
func ExistsNamespace(ns string) ExistsOption {
return func(o *ExistsOptions) {
o.Namespace = ns
}
}
/*
// WrapStore adds a store Wrapper to a list of options passed into the store
func WrapStore(w Wrapper) Option {
return func(o *Options) {
o.Wrappers = append(o.Wrappers, w)
}
}
*/

22
store/store.go
View File

@ -4,6 +4,8 @@ package store // import "go.unistack.org/micro/v4/store"
import (
"context"
"errors"
"go.unistack.org/micro/v4/options"
)
var (
@ -21,21 +23,21 @@ var (
type Store interface {
Name() string
// Init initialises the store
Init(opts ...Option) error
Init(opts ...options.Option) error
// Connect is used when store needs to be connected
Connect(ctx context.Context) error
// Options allows you to view the current options.
Options() Options
// Exists check that key exists in store
Exists(ctx context.Context, key string, opts ...ExistsOption) error
// Read reads a single key name to provided value with optional ReadOptions
Read(ctx context.Context, key string, val interface{}, opts ...ReadOption) error
// Write writes a value to key name to the store with optional WriteOption
Write(ctx context.Context, key string, val interface{}, opts ...WriteOption) error
// Delete removes the record with the corresponding key from the store.
Delete(ctx context.Context, key string, opts ...DeleteOption) error
// List returns any keys that match, or an empty list with no error if none matched.
List(ctx context.Context, opts ...ListOption) ([]string, error)
Exists(ctx context.Context, key string, opts ...options.Option) error
// Read reads a single key name to provided value with optional options
Read(ctx context.Context, key string, val interface{}, opts ...options.Option) error
// Write writes a value to key name to the store with optional options
Write(ctx context.Context, key string, val interface{}, opts ...options.Option) error
// Delete removes the record with the corresponding key from the store with optional options
Delete(ctx context.Context, key string, opts ...options.Option) error
// List returns any keys that match, or an empty list with no error if none matched with optional options
List(ctx context.Context, opts ...options.Option) ([]string, error)
// Disconnect the store
Disconnect(ctx context.Context) error
// String returns the name of the implementation.

45
store/wrapper.go
View File

@ -2,14 +2,9 @@ package store
import (
"context"
)
// LogfFunc function used for Logf method
// type LogfFunc func(ctx context.Context, level Level, msg string, args ...interface{})
// type Wrapper interface {
// Logf logs message with needed level
// Logf(LogfFunc) LogfFunc
// }
"go.unistack.org/micro/v4/options"
)
// NamespaceStore wrap store with namespace
type NamespaceStore struct {
@ -23,7 +18,7 @@ func NewNamespaceStore(s Store, ns string) Store {
return &NamespaceStore{s: s, ns: ns}
}
func (w *NamespaceStore) Init(opts ...Option) error {
func (w *NamespaceStore) Init(opts ...options.Option) error {
return w.s.Init(opts...)
}
@ -35,24 +30,24 @@ func (w *NamespaceStore) Disconnect(ctx context.Context) error {
return w.s.Disconnect(ctx)
}
func (w *NamespaceStore) Read(ctx context.Context, key string, val interface{}, opts ...ReadOption) error {
return w.s.Read(ctx, key, val, append(opts, ReadNamespace(w.ns))...)
func (w *NamespaceStore) Read(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
return w.s.Read(ctx, key, val, append(opts, options.Namespace(w.ns))...)
}
func (w *NamespaceStore) Write(ctx context.Context, key string, val interface{}, opts ...WriteOption) error {
return w.s.Write(ctx, key, val, append(opts, WriteNamespace(w.ns))...)
func (w *NamespaceStore) Write(ctx context.Context, key string, val interface{}, opts ...options.Option) error {
return w.s.Write(ctx, key, val, append(opts, options.Namespace(w.ns))...)
}
func (w *NamespaceStore) Delete(ctx context.Context, key string, opts ...DeleteOption) error {
return w.s.Delete(ctx, key, append(opts, DeleteNamespace(w.ns))...)
func (w *NamespaceStore) Delete(ctx context.Context, key string, opts ...options.Option) error {
return w.s.Delete(ctx, key, append(opts, options.Namespace(w.ns))...)
}
func (w *NamespaceStore) Exists(ctx context.Context, key string, opts ...ExistsOption) error {
return w.s.Exists(ctx, key, append(opts, ExistsNamespace(w.ns))...)
func (w *NamespaceStore) Exists(ctx context.Context, key string, opts ...options.Option) error {
return w.s.Exists(ctx, key, append(opts, options.Namespace(w.ns))...)
}
func (w *NamespaceStore) List(ctx context.Context, opts ...ListOption) ([]string, error) {
return w.s.List(ctx, append(opts, ListNamespace(w.ns))...)
func (w *NamespaceStore) List(ctx context.Context, opts ...options.Option) ([]string, error) {
return w.s.List(ctx, append(opts, options.Namespace(w.ns))...)
}
func (w *NamespaceStore) Options() Options {
@ -66,17 +61,3 @@ func (w *NamespaceStore) Name() string {
func (w *NamespaceStore) String() string {
return w.s.String()
}
// type NamespaceWrapper struct{}
// func NewNamespaceWrapper() Wrapper {
// return &NamespaceWrapper{}
// }
/*
func (w *OmitWrapper) Logf(fn LogfFunc) LogfFunc {
return func(ctx context.Context, level Level, msg string, args ...interface{}) {
fn(ctx, level, msg, getArgs(args)...)
}
}
*/

3
tools.go Normal file
View File

@ -0,0 +1,3 @@
package micro
//go:generate go install golang.org/x/tools/cmd/stringer@latest

10
tracer/context.go
View File

@ -46,13 +46,3 @@ func NewSpanContext(ctx context.Context, span Span) context.Context {
}
return context.WithValue(ctx, spanKey{}, span)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}

12
tracer/noop.go
View File

@ -2,6 +2,8 @@ package tracer
import (
"context"
"go.unistack.org/micro/v4/options"
)
var _ Tracer = (*noopTracer)(nil)
@ -10,7 +12,7 @@ type noopTracer struct {
opts Options
}
func (t *noopTracer) Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span) {
func (t *noopTracer) Start(ctx context.Context, name string, opts ...options.Option) (context.Context, Span) {
span := &noopSpan{
name: name,
ctx: ctx,
@ -27,7 +29,7 @@ func (t *noopTracer) Flush(ctx context.Context) error {
return nil
}
func (t *noopTracer) Init(opts ...Option) error {
func (t *noopTracer) Init(opts ...options.Option) error {
for _, o := range opts {
o(&t.opts)
}
@ -47,7 +49,7 @@ type noopSpan struct {
statusMsg string
}
func (s *noopSpan) Finish(opts ...SpanOption) {
func (s *noopSpan) Finish(opts ...options.Option) {
}
func (s *noopSpan) Context() context.Context {
@ -58,7 +60,7 @@ func (s *noopSpan) Tracer() Tracer {
return s.tracer
}
func (s *noopSpan) AddEvent(name string, opts ...EventOption) {
func (s *noopSpan) AddEvent(name string, opts ...options.Option) {
}
func (s *noopSpan) SetName(name string) {
@ -87,7 +89,7 @@ func (s *noopSpan) SetStatus(st SpanStatus, msg string) {
}
// NewTracer returns new memory tracer
func NewTracer(opts ...Option) Tracer {
func NewTracer(opts ...options.Option) Tracer {
return &noopTracer{
opts: NewOptions(opts...),
}

53
tracer/options.go
View File

@ -2,8 +2,11 @@ package tracer
import (
"context"
"reflect"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/options"
rutil "go.unistack.org/micro/v4/util/reflect"
)
type SpanStatus int
@ -87,24 +90,29 @@ type SpanOptions struct {
Kind SpanKind
}
// SpanOption func signature
type SpanOption func(o *SpanOptions)
// EventOptions contains event options
type EventOptions struct{}
// EventOption func signature
type EventOption func(o *EventOptions)
func WithSpanLabels(labels ...interface{}) SpanOption {
return func(o *SpanOptions) {
o.Labels = labels
func WithSpanLabels(ls ...interface{}) options.Option {
return func(src interface{}) error {
v, err := options.Get(src, ".Labels")
if err != nil {
return err
} else if rutil.IsZero(v) {
v = reflect.MakeSlice(reflect.TypeOf(v), 0, len(ls)).Interface()
}
cv := reflect.ValueOf(v)
for _, l := range ls {
reflect.Append(cv, reflect.ValueOf(l))
}
err = options.Set(src, cv, ".Labels")
return err
}
}
func WithSpanKind(k SpanKind) SpanOption {
return func(o *SpanOptions) {
o.Kind = k
func WithSpanKind(k SpanKind) options.Option {
return func(src interface{}) error {
return options.Set(src, k, ".Kind")
}
}
@ -118,18 +126,8 @@ type Options struct {
Name string
}
// Option func signature
type Option func(o *Options)
// Logger sets the logger
func Logger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// NewSpanOptions returns default SpanOptions
func NewSpanOptions(opts ...SpanOption) SpanOptions {
func NewSpanOptions(opts ...options.Option) SpanOptions {
options := SpanOptions{
Kind: SpanKindInternal,
}
@ -140,7 +138,7 @@ func NewSpanOptions(opts ...SpanOption) SpanOptions {
}
// NewOptions returns default options
func NewOptions(opts ...Option) Options {
func NewOptions(opts ...options.Option) Options {
options := Options{
Logger: logger.DefaultLogger,
}
@ -149,10 +147,3 @@ func NewOptions(opts ...Option) Options {
}
return options
}
// Name sets the name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}

10
tracer/tracer.go
View File

@ -3,6 +3,8 @@ package tracer // import "go.unistack.org/micro/v4/tracer"
import (
"context"
"go.unistack.org/micro/v4/options"
)
// DefaultTracer is the global default tracer
@ -13,9 +15,9 @@ type Tracer interface {
// Name return tracer name
Name() string
// Init tracer with options
Init(...Option) error
Init(...options.Option) error
// Start a trace
Start(ctx context.Context, name string, opts ...SpanOption) (context.Context, Span)
Start(ctx context.Context, name string, opts ...options.Option) (context.Context, Span)
// Flush flushes spans
Flush(ctx context.Context) error
}
@ -24,9 +26,9 @@ type Span interface {
// Tracer return underlining tracer
Tracer() Tracer
// Finish complete and send span
Finish(opts ...SpanOption)
Finish(opts ...options.Option)
// AddEvent add event to span
AddEvent(name string, opts ...EventOption)
AddEvent(name string, opts ...options.Option)
// Context return context with span
Context() context.Context
// SetName set the span name

102
tracer/wrapper/wrapper.go
View File

@ -46,23 +46,6 @@ var (
sp.SetLabels(labels...)
}
DefaultClientPublishObserver = func(ctx context.Context, msg client.Message, opts []client.PublishOption, sp tracer.Span, err error) {
sp.SetName(fmt.Sprintf("Publish %s", msg.Topic()))
var labels []interface{}
if md, ok := metadata.FromOutgoingContext(ctx); ok {
labels = make([]interface{}, 0, len(md))
for k, v := range md {
labels = append(labels, k, v)
}
}
if err != nil {
labels = append(labels, "error", err.Error())
sp.SetStatus(tracer.SpanStatusError, err.Error())
}
labels = append(labels, "kind", sp.Kind())
sp.SetLabels(labels...)
}
DefaultServerHandlerObserver = func(ctx context.Context, req server.Request, rsp interface{}, sp tracer.Span, err error) {
sp.SetName(fmt.Sprintf("Handler %s.%s", req.Service(), req.Method()))
var labels []interface{}
@ -80,23 +63,6 @@ var (
sp.SetLabels(labels...)
}
DefaultServerSubscriberObserver = func(ctx context.Context, msg server.Message, sp tracer.Span, err error) {
sp.SetName(fmt.Sprintf("Subscriber %s", msg.Topic()))
var labels []interface{}
if md, ok := metadata.FromIncomingContext(ctx); ok {
labels = make([]interface{}, 0, len(md))
for k, v := range md {
labels = append(labels, k, v)
}
}
if err != nil {
labels = append(labels, "error", err.Error())
sp.SetStatus(tracer.SpanStatusError, err.Error())
}
labels = append(labels, "kind", sp.Kind())
sp.SetLabels(labels...)
}
DefaultClientCallFuncObserver = func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions, sp tracer.Span, err error) {
sp.SetName(fmt.Sprintf("Call %s.%s", req.Service(), req.Method()))
var labels []interface{}
@ -120,7 +86,6 @@ var (
type tWrapper struct {
client.Client
serverHandler server.HandlerFunc
serverSubscriber server.SubscriberFunc
clientCallFunc client.CallFunc
opts Options
}
@ -128,10 +93,8 @@ type tWrapper struct {
type (
ClientCallObserver func(context.Context, client.Request, interface{}, []client.CallOption, tracer.Span, error)
ClientStreamObserver func(context.Context, client.Request, []client.CallOption, client.Stream, tracer.Span, error)
ClientPublishObserver func(context.Context, client.Message, []client.PublishOption, tracer.Span, error)
ClientCallFuncObserver func(context.Context, string, client.Request, interface{}, client.CallOptions, tracer.Span, error)
ServerHandlerObserver func(context.Context, server.Request, interface{}, tracer.Span, error)
ServerSubscriberObserver func(context.Context, server.Message, tracer.Span, error)
)
// Options struct
@ -142,14 +105,10 @@ type Options struct {
ClientCallObservers []ClientCallObserver
// ClientStreamObservers funcs
ClientStreamObservers []ClientStreamObserver
// ClientPublishObservers funcs
ClientPublishObservers []ClientPublishObserver
// ClientCallFuncObservers funcs
ClientCallFuncObservers []ClientCallFuncObserver
// ServerHandlerObservers funcs
ServerHandlerObservers []ServerHandlerObserver
// ServerSubscriberObservers funcs
ServerSubscriberObservers []ServerSubscriberObserver
// SkipEndpoints
SkipEndpoints []string
}
@ -163,10 +122,8 @@ func NewOptions(opts ...Option) Options {
Tracer: tracer.DefaultTracer,
ClientCallObservers: []ClientCallObserver{DefaultClientCallObserver},
ClientStreamObservers: []ClientStreamObserver{DefaultClientStreamObserver},
ClientPublishObservers: []ClientPublishObserver{DefaultClientPublishObserver},
ClientCallFuncObservers: []ClientCallFuncObserver{DefaultClientCallFuncObserver},
ServerHandlerObservers: []ServerHandlerObserver{DefaultServerHandlerObserver},
ServerSubscriberObservers: []ServerSubscriberObserver{DefaultServerSubscriberObserver},
SkipEndpoints: DefaultSkipEndpoints,
}
@ -205,13 +162,6 @@ func WithClientStreamObservers(ob ...ClientStreamObserver) Option {
}
}
// WithClientPublishObservers funcs
func WithClientPublishObservers(ob ...ClientPublishObserver) Option {
return func(o *Options) {
o.ClientPublishObservers = ob
}
}
// WithClientCallFuncObservers funcs
func WithClientCallFuncObservers(ob ...ClientCallFuncObserver) Option {
return func(o *Options) {
@ -226,13 +176,6 @@ func WithServerHandlerObservers(ob ...ServerHandlerObserver) Option {
}
}
// WithServerSubscriberObservers funcs
func WithServerSubscriberObservers(ob ...ServerSubscriberObserver) Option {
return func(o *Options) {
o.ServerSubscriberObservers = ob
}
}
func (ot *tWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
for _, ep := range ot.opts.SkipEndpoints {
@ -279,22 +222,6 @@ func (ot *tWrapper) Stream(ctx context.Context, req client.Request, opts ...clie
return stream, err
}
func (ot *tWrapper) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
sp, ok := tracer.SpanFromContext(ctx)
if !ok {
ctx, sp = ot.opts.Tracer.Start(ctx, "", tracer.WithSpanKind(tracer.SpanKindProducer))
}
defer sp.Finish()
err := ot.Client.Publish(ctx, msg, opts...)
for _, o := range ot.opts.ClientPublishObservers {
o(ctx, msg, opts, sp, err)
}
return err
}
func (ot *tWrapper) ServerHandler(ctx context.Context, req server.Request, rsp interface{}) error {
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Method())
for _, ep := range ot.opts.SkipEndpoints {
@ -318,22 +245,6 @@ func (ot *tWrapper) ServerHandler(ctx context.Context, req server.Request, rsp i
return err
}
func (ot *tWrapper) ServerSubscriber(ctx context.Context, msg server.Message) error {
sp, ok := tracer.SpanFromContext(ctx)
if !ok {
ctx, sp = ot.opts.Tracer.Start(ctx, "", tracer.WithSpanKind(tracer.SpanKindConsumer))
}
defer sp.Finish()
err := ot.serverSubscriber(ctx, msg)
for _, o := range ot.opts.ServerSubscriberObservers {
o(ctx, msg, sp, err)
}
return err
}
// NewClientWrapper accepts an open tracing Trace and returns a Client Wrapper
func NewClientWrapper(opts ...Option) client.Wrapper {
return func(c client.Client) client.Client {
@ -393,16 +304,3 @@ func NewServerHandlerWrapper(opts ...Option) server.HandlerWrapper {
return ot.ServerHandler
}
}
// NewServerSubscriberWrapper accepts an opentracing Tracer and returns a Subscriber Wrapper
func NewServerSubscriberWrapper(opts ...Option) server.SubscriberWrapper {
return func(h server.SubscriberFunc) server.SubscriberFunc {
options := NewOptions()
for _, o := range opts {
o(&options)
}
ot := &tWrapper{opts: options, serverSubscriber: h}
return ot.ServerSubscriber
}
}

63
util/ctx/ctx.go Normal file
View File

@ -0,0 +1,63 @@
package ctx
import "context"
// Mixin mixes a typically shorter-lived (service, etc.) context passed in
// “shortctx” into a long-living context “longctx”, returning a derived “mixed”
// context. The “mixed” context is derived from the long-living context and
// additionally gets the deadline (if any) and cancellation of the mixed-in
// “shortctx”.
//
// Please note that it is essential to always call the additionally returned
// cancel function in order to not leak go routines. Calling this cancel
// function won't cancel the long-living and short-lived contexts, just clean
// up. This follows the established context pattern of [context.WithCancel],
// [context.WithDeadline] and [context.WithTimeout].
func Mixin(longctx, shortctx context.Context) (mixedctx context.Context, mixedcancel context.CancelFunc) {
if longctx == nil {
panic("wye.Mixin: cannot mix into nil context")
}
if shortctx == nil {
panic("wye.Mixin: cannot mix-in nil context")
}
mixedctx = longctx
shortDone := shortctx.Done()
if shortDone == nil {
// In case the shorter-living context isn't cancellable at all, then we
// cannot cancel it and the cancel function returned must be a "no
// operation". There's no need to mix in something, so we can pass on
// the long-lived context.
mixedcancel = func() {}
return
}
// Nota bene: cancelled contexts "trickle down", so if a context higher up
// the hierarchy was cancelled, this will automatically propagate down to
// all child contexts, and so on.
//
// In case the shorter-lived context has a deadline, we need to carry it
// over into the final mixed context.
if deadline, ok := shortctx.Deadline(); ok {
mixedctx, mixedcancel = context.WithDeadline(mixedctx, deadline)
}
// As the shorter-living context can be cancelled, we will need to supervise
// it so we notice when it gets cancelled and then cancel the mixed context.
mixedctx, mixedcancel = context.WithCancel(mixedctx)
go func(ctx context.Context, cancel context.CancelFunc) {
select {
case <-shortDone:
// In case the shorter-living context was cancelled (but it did
// not pass a deadline) then we need to propagate this mixed
// context. Please note this correctly won't cancel the original
// longer context, because that's a long-living context we
// shouldn't interfere with.
if shortctx.Err() == context.Canceled {
cancel()
}
case <-ctx.Done():
// The final mixed context was either cancelled itself or its parent
// deadline context met its fate; here, do not touch short-lived
// context.
}
}(mixedctx, mixedcancel)
return
}

40
util/io/io.go
View File

@ -1,40 +0,0 @@
// Package io is for io management
package io // import "go.unistack.org/micro/v4/util/io"
import (
"io"
"go.unistack.org/micro/v4/network/transport"
)
type rwc struct {
socket transport.Socket
}
func (r *rwc) Read(p []byte) (n int, err error) {
m := new(transport.Message)
if err := r.socket.Recv(m); err != nil {
return 0, err
}
copy(p, m.Body)
return len(m.Body), nil
}
func (r *rwc) Write(p []byte) (n int, err error) {
err = r.socket.Send(&transport.Message{
Body: p,
})
if err != nil {
return 0, err
}
return len(p), nil
}
func (r *rwc) Close() error {
return r.socket.Close()
}
// NewRWC returns a new ReadWriteCloser
func NewRWC(sock transport.Socket) io.ReadWriteCloser {
return &rwc{sock}
}

118
util/pool/default.go
View File

@ -1,118 +0,0 @@
package pool
import (
"context"
"sync"
"time"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/util/id"
)
type pool struct {
tr transport.Transport
conns map[string][]*poolConn
size int
ttl time.Duration
sync.Mutex
}
type poolConn struct {
created time.Time
transport.Client
id string
}
func newPool(options Options) *pool {
return &pool{
size: options.Size,
tr: options.Transport,
ttl: options.TTL,
conns: make(map[string][]*poolConn),
}
}
func (p *pool) Close() error {
p.Lock()
for k, c := range p.conns {
for _, conn := range c {
conn.Client.Close()
}
delete(p.conns, k)
}
p.Unlock()
return nil
}
// NoOp the Close since we manage it
func (p *poolConn) Close() error {
return nil
}
func (p *poolConn) ID() string {
return p.id
}
func (p *poolConn) Created() time.Time {
return p.created
}
func (p *pool) Get(ctx context.Context, addr string, opts ...transport.DialOption) (Conn, error) {
p.Lock()
conns := p.conns[addr]
// while we have conns check age and then return one
// otherwise we'll create a new conn
for len(conns) > 0 {
conn := conns[len(conns)-1]
conns = conns[:len(conns)-1]
p.conns[addr] = conns
// if conn is old kill it and move on
if d := time.Since(conn.Created()); d > p.ttl {
conn.Client.Close()
continue
}
// we got a good conn, lets unlock and return it
p.Unlock()
return conn, nil
}
p.Unlock()
// create new conn
c, err := p.tr.Dial(ctx, addr, opts...)
if err != nil {
return nil, err
}
id, err := id.New()
if err != nil {
return nil, err
}
return &poolConn{
Client: c,
id: id,
created: time.Now(),
}, nil
}
func (p *pool) Release(conn Conn, err error) error {
// don't store the conn if it has errored
if err != nil {
return conn.(*poolConn).Client.Close()
}
// otherwise put it back for reuse
p.Lock()
conns := p.conns[conn.Remote()]
if len(conns) >= p.size {
p.Unlock()
return conn.(*poolConn).Client.Close()
}
p.conns[conn.Remote()] = append(conns, conn.(*poolConn))
p.Unlock()
return nil
}

92
util/pool/default_test.go
View File

@ -1,92 +0,0 @@
//go:build ignore
// +build ignore
package pool
import (
"testing"
"time"
"go.unistack.org/micro/v4/network/transport"
"go.unistack.org/micro/v4/network/transport/memory"
)
func testPool(t *testing.T, size int, ttl time.Duration) {
// mock transport
tr := memory.NewTransport()
options := Options{
TTL: ttl,
Size: size,
Transport: tr,
}
// zero pool
p := newPool(options)
// listen
l, err := tr.Listen(":0")
if err != nil {
t.Fatal(err)
}
defer l.Close()
// accept loop
go func() {
for {
if err := l.Accept(func(s transport.Socket) {
for {
var msg transport.Message
if err := s.Recv(&msg); err != nil {
return
}
if err := s.Send(&msg); err != nil {
return
}
}
}); err != nil {
return
}
}
}()
for i := 0; i < 10; i++ {
// get a conn
c, err := p.Get(l.Addr())
if err != nil {
t.Fatal(err)
}
msg := &transport.Message{
Body: []byte(`hello world`),
}
if err := c.Send(msg); err != nil {
t.Fatal(err)
}
var rcv transport.Message
if err := c.Recv(&rcv); err != nil {
t.Fatal(err)
}
if string(rcv.Body) != string(msg.Body) {
t.Fatalf("got %v, expected %v", rcv.Body, msg.Body)
}
// release the conn
p.Release(c, nil)
p.Lock()
if i := len(p.conns[l.Addr()]); i > size {
p.Unlock()
t.Fatalf("pool size %d is greater than expected %d", i, size)
}
p.Unlock()
}
}
func TestClientPool(t *testing.T) {
testPool(t, 0, time.Minute)
testPool(t, 2, time.Minute)
}

38
util/pool/options.go
View File

@ -1,38 +0,0 @@
package pool
import (
"time"
"go.unistack.org/micro/v4/network/transport"
)
// Options struct
type Options struct {
Transport transport.Transport
TTL time.Duration
Size int
}
// Option func signature
type Option func(*Options)
// Size sets the size
func Size(i int) Option {
return func(o *Options) {
o.Size = i
}
}
// Transport sets the transport
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
// TTL specifies ttl
func TTL(t time.Duration) Option {
return func(o *Options) {
o.TTL = t
}
}

38
util/pool/pool.go
View File

@ -1,38 +0,0 @@
// Package pool is a connection pool
package pool // import "go.unistack.org/micro/v4/util/pool"
import (
"context"
"time"
"go.unistack.org/micro/v4/network/transport"
)
// Pool is an interface for connection pooling
type Pool interface {
// Close the pool
Close() error
// Get a connection
Get(ctx context.Context, addr string, opts ...transport.DialOption) (Conn, error)
// Release the connection
Release(c Conn, status error) error
}
// Conn conn pool interface
type Conn interface {
// unique id of connection
ID() string
// time it was created
Created() time.Time
// embedded connection
transport.Client
}
// NewPool creates new connection pool
func NewPool(opts ...Option) Pool {
options := Options{}
for _, o := range opts {
o(&options)
}
return newPool(options)
}

24
util/reflect/struct.go
View File

@ -76,6 +76,9 @@ func ZeroFieldByPath(src interface{}, path string) error {
val := reflect.ValueOf(src)
for _, p := range strings.Split(path, ".") {
if p == "" {
continue
}
val, err = structValueByName(val, p)
if err != nil {
return err
@ -101,6 +104,9 @@ func SetFieldByPath(src interface{}, dst interface{}, path string) error {
val := reflect.ValueOf(src)
for _, p := range strings.Split(path, ".") {
if p == "" {
continue
}
val, err = structValueByName(val, p)
if err != nil {
return err
@ -111,7 +117,20 @@ func SetFieldByPath(src interface{}, dst interface{}, path string) error {
return ErrInvalidStruct
}
val.Set(reflect.ValueOf(dst))
nv := reflect.ValueOf(dst)
if val.Kind() != nv.Kind() {
switch {
default:
val.Set(nv)
case nv.Kind() == reflect.Slice:
val.Set(nv.Index(0))
case val.Kind() == reflect.Slice:
val.Set(reflect.MakeSlice(val.Type(), 1, 1))
val.Index(0).Set(nv)
}
} else {
val.Set(nv)
}
return nil
}
@ -157,6 +176,9 @@ func structValueByName(sv reflect.Value, tkey string) (reflect.Value, error) {
func StructFieldByPath(src interface{}, path string) (interface{}, error) {
var err error
for _, p := range strings.Split(path, ".") {
if p == "" {
continue
}
src, err = StructFieldByName(src, p)
if err != nil {
return nil, err

36
util/reflect/struct_test.go
View File

@ -62,6 +62,42 @@ func TestStructFieldsNested(t *testing.T) {
}
}
func TestSetFieldByPathMultiple(t *testing.T) {
var err error
tv := "test_val"
type Str1 struct {
Name []string `json:"name"`
}
val1 := &Str1{}
err = rutil.SetFieldByPath(val1, tv, ".Name")
if err != nil {
t.Fatal(err)
}
if len(val1.Name) != 1 {
t.Fatal("assign error")
} else if val1.Name[0] != tv {
t.Fatal("assign error")
}
type Str2 struct {
Name string `json:"name"`
}
val2 := &Str2{}
err = rutil.SetFieldByPath(val2, []string{tv}, ".Name")
if err != nil {
t.Fatal(err)
}
if len(val1.Name) != 1 {
t.Fatal("assign error")
} else if val1.Name[0] != tv {
t.Fatal("assign error")
}
}
func TestSetFieldByPath(t *testing.T) {
type NestedStr struct {
BBB string `json:"bbb"`

65
util/socket/pool.go
View File

@ -1,65 +0,0 @@
package socket
import (
"sync"
)
// Pool holds the socket pool
type Pool struct {
sync.RWMutex
pool map[string]*Socket
}
// Get socket from pool
func (p *Pool) Get(id string) (*Socket, bool) {
// attempt to get existing socket
p.RLock()
socket, ok := p.pool[id]
if ok {
p.RUnlock()
return socket, ok
}
p.RUnlock()
// save socket
p.Lock()
defer p.Unlock()
// double checked locking
socket, ok = p.pool[id]
if ok {
return socket, ok
}
// create new socket
socket = New(id)
p.pool[id] = socket
// return socket
return socket, false
}
// Release close the socket and delete from pool
func (p *Pool) Release(s *Socket) {
p.Lock()
defer p.Unlock()
// close the socket
s.Close()
delete(p.pool, s.id)
}
// Close the pool and delete all the sockets
func (p *Pool) Close() {
p.Lock()
defer p.Unlock()
for id, sock := range p.pool {
sock.Close()
delete(p.pool, id)
}
}
// NewPool returns a new socket pool
func NewPool() *Pool {
return &Pool{
pool: make(map[string]*Socket),
}
}

118
util/socket/socket.go
View File

@ -1,118 +0,0 @@
// Package socket provides a pseudo socket
package socket // import "go.unistack.org/micro/v4/util/socket"
import (
"io"
"go.unistack.org/micro/v4/network/transport"
)
// Socket is our pseudo socket for transport.Socket
type Socket struct {
closed chan bool
send chan *transport.Message
recv chan *transport.Message
id string
remote string
local string
}
// SetLocal sets the local addr
func (s *Socket) SetLocal(l string) {
s.local = l
}
// SetRemote sets the remote addr
func (s *Socket) SetRemote(r string) {
s.remote = r
}
// Accept passes a message to the socket which will be processed by the call to Recv
func (s *Socket) Accept(m *transport.Message) error {
select {
case s.recv <- m:
return nil
case <-s.closed:
return io.EOF
}
}
// Process takes the next message off the send queue created by a call to Send
func (s *Socket) Process(m *transport.Message) error {
select {
case msg := <-s.send:
*m = *msg
case <-s.closed:
// see if we need to drain
select {
case msg := <-s.send:
*m = *msg
return nil
default:
return io.EOF
}
}
return nil
}
// Remote returns remote addr
func (s *Socket) Remote() string {
return s.remote
}
// Local returns local addr
func (s *Socket) Local() string {
return s.local
}
// Send message by via transport
func (s *Socket) Send(m *transport.Message) error {
// send a message
select {
case s.send <- m:
case <-s.closed:
return io.EOF
}
return nil
}
// Recv message from transport
func (s *Socket) Recv(m *transport.Message) error {
// receive a message
select {
case msg := <-s.recv:
// set message
*m = *msg
case <-s.closed:
return io.EOF
}
// return nil
return nil
}
// Close closes the socket
func (s *Socket) Close() error {
select {
case <-s.closed:
// no op
default:
close(s.closed)
}
return nil
}
// New returns a new pseudo socket which can be used in the place of a transport socket.
// Messages are sent to the socket via Accept and receives from the socket via Process.
// SetLocal/SetRemote should be called before using the socket.
func New(id string) *Socket {
return &Socket{
id: id,
closed: make(chan bool),
local: "local",
remote: "remote",
send: make(chan *transport.Message, 128),
recv: make(chan *transport.Message, 128),
}
}