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broker/noop: add initial implementation

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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2024-03-04 01:05:40 +03:00
parent 97fd62cb21
commit d3bb2f7236
3 changed files with 128 additions and 32 deletions
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65
broker/memory.go → broker/memory/memory.go
View File

@ -4,6 +4,7 @@ import (
"context"
"sync"
"go.unistack.org/micro/v3/broker"
"go.unistack.org/micro/v3/logger"
"go.unistack.org/micro/v3/metadata"
maddr "go.unistack.org/micro/v3/util/addr"
@ -15,7 +16,7 @@ import (
type memoryBroker struct {
subscribers map[string][]*memorySubscriber
addr string
opts Options
opts broker.Options
sync.RWMutex
connected bool
}
@ -24,20 +25,20 @@ type memoryEvent struct {
err error
message interface{}
topic string
opts Options
opts broker.Options
}
type memorySubscriber struct {
ctx context.Context
exit chan bool
handler Handler
batchhandler BatchHandler
handler broker.Handler
batchhandler broker.BatchHandler
id string
topic string
opts SubscribeOptions
opts broker.SubscribeOptions
}
func (m *memoryBroker) Options() Options {
func (m *memoryBroker) Options() broker.Options {
return m.opts
}
@ -46,6 +47,12 @@ func (m *memoryBroker) Address() string {
}
func (m *memoryBroker) Connect(ctx context.Context) error {
select {
case <-ctx.Done():
return ctx.Err()
default:
}
m.Lock()
defer m.Unlock()
@ -70,6 +77,12 @@ func (m *memoryBroker) Connect(ctx context.Context) error {
}
func (m *memoryBroker) Disconnect(ctx context.Context) error {
select {
case <-ctx.Done():
return ctx.Err()
default:
}
m.Lock()
defer m.Unlock()
@ -81,27 +94,27 @@ func (m *memoryBroker) Disconnect(ctx context.Context) error {
return nil
}
func (m *memoryBroker) Init(opts ...Option) error {
func (m *memoryBroker) Init(opts ...broker.Option) error {
for _, o := range opts {
o(&m.opts)
}
return nil
}
func (m *memoryBroker) Publish(ctx context.Context, topic string, msg *Message, opts ...PublishOption) error {
func (m *memoryBroker) Publish(ctx context.Context, topic string, msg *broker.Message, opts ...broker.PublishOption) error {
msg.Header.Set(metadata.HeaderTopic, topic)
return m.publish(ctx, []*Message{msg}, opts...)
return m.publish(ctx, []*broker.Message{msg}, opts...)
}
func (m *memoryBroker) BatchPublish(ctx context.Context, msgs []*Message, opts ...PublishOption) error {
func (m *memoryBroker) BatchPublish(ctx context.Context, msgs []*broker.Message, opts ...broker.PublishOption) error {
return m.publish(ctx, msgs, opts...)
}
func (m *memoryBroker) publish(ctx context.Context, msgs []*Message, opts ...PublishOption) error {
func (m *memoryBroker) publish(ctx context.Context, msgs []*broker.Message, opts ...broker.PublishOption) error {
m.RLock()
if !m.connected {
m.RUnlock()
return ErrNotConnected
return broker.ErrNotConnected
}
m.RUnlock()
@ -111,9 +124,9 @@ func (m *memoryBroker) publish(ctx context.Context, msgs []*Message, opts ...Pub
case <-ctx.Done():
return ctx.Err()
default:
options := NewPublishOptions(opts...)
options := broker.NewPublishOptions(opts...)
msgTopicMap := make(map[string]Events)
msgTopicMap := make(map[string]broker.Events)
for _, v := range msgs {
p := &memoryEvent{opts: m.opts}
@ -188,11 +201,11 @@ func (m *memoryBroker) publish(ctx context.Context, msgs []*Message, opts ...Pub
return nil
}
func (m *memoryBroker) BatchSubscribe(ctx context.Context, topic string, handler BatchHandler, opts ...SubscribeOption) (Subscriber, error) {
func (m *memoryBroker) BatchSubscribe(ctx context.Context, topic string, handler broker.BatchHandler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
m.RLock()
if !m.connected {
m.RUnlock()
return nil, ErrNotConnected
return nil, broker.ErrNotConnected
}
m.RUnlock()
@ -201,7 +214,7 @@ func (m *memoryBroker) BatchSubscribe(ctx context.Context, topic string, handler
return nil, err
}
options := NewSubscribeOptions(opts...)
options := broker.NewSubscribeOptions(opts...)
sub := &memorySubscriber{
exit: make(chan bool, 1),
@ -233,11 +246,11 @@ func (m *memoryBroker) BatchSubscribe(ctx context.Context, topic string, handler
return sub, nil
}
func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler Handler, opts ...SubscribeOption) (Subscriber, error) {
func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
m.RLock()
if !m.connected {
m.RUnlock()
return nil, ErrNotConnected
return nil, broker.ErrNotConnected
}
m.RUnlock()
@ -246,7 +259,7 @@ func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler Hand
return nil, err
}
options := NewSubscribeOptions(opts...)
options := broker.NewSubscribeOptions(opts...)
sub := &memorySubscriber{
exit: make(chan bool, 1),
@ -290,12 +303,12 @@ func (m *memoryEvent) Topic() string {
return m.topic
}
func (m *memoryEvent) Message() *Message {
func (m *memoryEvent) Message() *broker.Message {
switch v := m.message.(type) {
case *Message:
case *broker.Message:
return v
case []byte:
msg := &Message{}
msg := &broker.Message{}
if err := m.opts.Codec.Unmarshal(v, msg); err != nil {
if m.opts.Logger.V(logger.ErrorLevel) {
m.opts.Logger.Error(m.opts.Context, "[memory]: failed to unmarshal: %v", err)
@ -320,7 +333,7 @@ func (m *memoryEvent) SetError(err error) {
m.err = err
}
func (m *memorySubscriber) Options() SubscribeOptions {
func (m *memorySubscriber) Options() broker.SubscribeOptions {
return m.opts
}
@ -334,9 +347,9 @@ func (m *memorySubscriber) Unsubscribe(ctx context.Context) error {
}
// NewBroker return new memory broker
func NewBroker(opts ...Option) Broker {
func NewBroker(opts ...broker.Option) broker.Broker {
return &memoryBroker{
opts: NewOptions(opts...),
opts: broker.NewOptions(opts...),
subscribers: make(map[string][]*memorySubscriber),
}
}

13
broker/memory_test.go → broker/memory/memory_test.go
View File

@ -5,6 +5,7 @@ import (
"fmt"
"testing"
"go.unistack.org/micro/v3/broker"
"go.unistack.org/micro/v3/metadata"
)
@ -19,7 +20,7 @@ func TestMemoryBatchBroker(t *testing.T) {
topic := "test"
count := 10
fn := func(evts Events) error {
fn := func(evts broker.Events) error {
return evts.Ack()
}
@ -28,9 +29,9 @@ func TestMemoryBatchBroker(t *testing.T) {
t.Fatalf("Unexpected error subscribing %v", err)
}
msgs := make([]*Message, 0, count)
msgs := make([]*broker.Message, 0, count)
for i := 0; i < count; i++ {
message := &Message{
message := &broker.Message{
Header: map[string]string{
metadata.HeaderTopic: topic,
"foo": "bar",
@ -65,7 +66,7 @@ func TestMemoryBroker(t *testing.T) {
topic := "test"
count := 10
fn := func(p Event) error {
fn := func(p broker.Event) error {
return nil
}
@ -74,9 +75,9 @@ func TestMemoryBroker(t *testing.T) {
t.Fatalf("Unexpected error subscribing %v", err)
}
msgs := make([]*Message, 0, count)
msgs := make([]*broker.Message, 0, count)
for i := 0; i < count; i++ {
message := &Message{
message := &broker.Message{
Header: map[string]string{
metadata.HeaderTopic: topic,
"foo": "bar",

82
broker/noop.go Normal file
View File

@ -0,0 +1,82 @@
package broker
import (
"context"
"strings"
)
type NoopBroker struct {
opts Options
}
func NewBroker(opts ...Option) *NoopBroker {
b := &NoopBroker{opts: NewOptions(opts...)}
return b
}
func (b *NoopBroker) Name() string {
return b.opts.Name
}
func (b *NoopBroker) String() string {
return "noop"
}
func (b *NoopBroker) Options() Options {
return b.opts
}
func (b *NoopBroker) Init(opts ...Option) error {
for _, opt := range opts {
opt(&b.opts)
}
return nil
}
func (b *NoopBroker) Connect(_ context.Context) error {
return nil
}
func (b *NoopBroker) Disconnect(_ context.Context) error {
return nil
}
func (b *NoopBroker) Address() string {
return strings.Join(b.opts.Addrs, ",")
}
func (b *NoopBroker) BatchPublish(_ context.Context, _ []*Message, _ ...PublishOption) error {
return nil
}
func (b *NoopBroker) Publish(_ context.Context, _ string, _ *Message, _ ...PublishOption) error {
return nil
}
type NoopSubscriber struct {
ctx context.Context
topic string
handler Handler
batchHandler BatchHandler
opts SubscribeOptions
}
func (b *NoopBroker) BatchSubscribe(ctx context.Context, topic string, handler BatchHandler, opts ...SubscribeOption) (Subscriber, error) {
return &NoopSubscriber{ctx: ctx, topic: topic, opts: NewSubscribeOptions(opts...), batchHandler: handler}, nil
}
func (b *NoopBroker) Subscribe(ctx context.Context, topic string, handler Handler, opts ...SubscribeOption) (Subscriber, error) {
return &NoopSubscriber{ctx: ctx, topic: topic, opts: NewSubscribeOptions(opts...), handler: handler}, nil
}
func (s *NoopSubscriber) Options() SubscribeOptions {
return s.opts
}
func (s *NoopSubscriber) Topic() string {
return s.topic
}
func (s *NoopSubscriber) Unsubscribe(ctx context.Context) error {
return nil
}