micro/server/options.go
2015-12-23 22:45:32 +00:00

173 lines
3.1 KiB
Go

package server
import (
"github.com/micro/go-micro/broker"
"github.com/micro/go-micro/codec"
"github.com/micro/go-micro/registry"
"github.com/micro/go-micro/transport"
)
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
}
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 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
}
func (o options) Name() string {
return o.name
}
func (o options) Id() string {
return o.name + "-" + o.id
}
func (o options) Version() string {
return o.version
}
func (o options) Address() string {
return o.address
}
func (o options) Advertise() string {
return o.advertise
}
func (o options) Metadata() map[string]string {
return o.metadata
}
// 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
}
}
// 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)
}
}