micro/server/options.go
2016-01-26 23:32:27 +00:00

183 lines
3.4 KiB
Go

package server
import (
"time"
"github.com/micro/go-micro/broker"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/registry"
"github.com/micro/go-micro/server/debug"
"github.com/micro/go-micro/transport"
"golang.org/x/net/context"
)
type Options struct {
Codecs map[string]codec.NewCodec
Broker broker.Broker
Registry registry.Registry
Transport transport.Transport
Metadata map[string]string
Name string
Address string
Advertise string
Id string
Version string
HdlrWrappers []HandlerWrapper
SubWrappers []SubscriberWrapper
// Debug Handler which can be set by a user
DebugHandler debug.DebugHandler
// Other options for implementations of the interface
// can be stored in a context
Context context.Context
}
type RegisterOptions struct {
TTL time.Duration
}
func newOptions(opt ...Option) Options {
opts := Options{
Codecs: make(map[string]codec.NewCodec),
Metadata: map[string]string{},
}
for _, o := range opt {
o(&opts)
}
if opts.Broker == nil {
opts.Broker = broker.DefaultBroker
}
if opts.Registry == nil {
opts.Registry = registry.DefaultRegistry
}
if opts.Transport == nil {
opts.Transport = transport.DefaultTransport
}
if opts.DebugHandler == nil {
opts.DebugHandler = debug.DefaultDebugHandler
}
if len(opts.Address) == 0 {
opts.Address = DefaultAddress
}
if len(opts.Name) == 0 {
opts.Name = DefaultName
}
if len(opts.Id) == 0 {
opts.Id = DefaultId
}
if len(opts.Version) == 0 {
opts.Version = DefaultVersion
}
return opts
}
// Server name
func Name(n string) Option {
return func(o *Options) {
o.Name = n
}
}
// Unique server id
func Id(id string) Option {
return func(o *Options) {
o.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
}
}
// The address to advertise for discovery - host:port
func Advertise(a string) Option {
return func(o *Options) {
o.Advertise = a
}
}
// Broker to use for pub/sub
func Broker(b broker.Broker) Option {
return func(o *Options) {
o.Broker = b
}
}
// Codec to use to encode/decode requests for a given content type
func Codec(contentType string, c codec.NewCodec) Option {
return func(o *Options) {
o.Codecs[contentType] = c
}
}
// Registry used for discovery
func Registry(r registry.Registry) Option {
return func(o *Options) {
o.Registry = r
}
}
// Transport mechanism for communication e.g http, rabbitmq, etc
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
// DebugHandler for this server
func DebugHandler(d debug.DebugHandler) Option {
return func(o *Options) {
o.DebugHandler = d
}
}
// Metadata associated with the server
func Metadata(md map[string]string) Option {
return func(o *Options) {
o.Metadata = md
}
}
// 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)
}
}
// Adds a subscriber Wrapper to a list of options passed into the server
func WrapSubscriber(w SubscriberWrapper) Option {
return func(o *Options) {
o.SubWrappers = append(o.SubWrappers, w)
}
}
// Register the service with a TTL
func RegisterTTL(t time.Duration) RegisterOption {
return func(o *RegisterOptions) {
o.TTL = t
}
}