171 lines
2.9 KiB
Go
171 lines
2.9 KiB
Go
// Package http implements a go-micro.Server
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package http
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import (
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"errors"
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"net"
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"net/http"
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"sync"
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"github.com/micro/go-micro/cmd"
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"github.com/micro/go-micro/registry"
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"github.com/micro/go-micro/server"
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)
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type httpServer struct {
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sync.Mutex
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opts server.Options
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hd server.Handler
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exit chan chan error
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}
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func init() {
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cmd.DefaultServers["http"] = NewServer
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}
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func (h *httpServer) Options() server.Options {
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h.Lock()
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opts := h.opts
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h.Unlock()
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return opts
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}
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func (h *httpServer) Init(opts ...server.Option) error {
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h.Lock()
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for _, o := range opts {
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o(&h.opts)
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}
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h.Unlock()
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return nil
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}
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func (h *httpServer) Handle(handler server.Handler) error {
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if _, ok := handler.Handler().(http.Handler); !ok {
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return errors.New("Handle requires http.Handler")
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}
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h.Lock()
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h.hd = handler
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h.Unlock()
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return nil
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}
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func (h *httpServer) NewHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
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options := server.HandlerOptions{
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Metadata: make(map[string]map[string]string),
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}
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for _, o := range opts {
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o(&options)
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}
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var eps []*registry.Endpoint
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if !options.Internal {
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for name, metadata := range options.Metadata {
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eps = append(eps, ®istry.Endpoint{
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Name: name,
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Metadata: metadata,
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})
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}
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}
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return &httpHandler{
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eps: eps,
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hd: handler,
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opts: options,
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}
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}
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func (h *httpServer) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
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var options server.SubscriberOptions
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for _, o := range opts {
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o(&options)
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}
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return &httpSubscriber{
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opts: options,
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topic: topic,
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hd: handler,
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}
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}
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func (h *httpServer) Subscribe(s server.Subscriber) error {
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return errors.New("subscribe is not supported")
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}
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func (h *httpServer) Register() error {
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h.Lock()
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opts := h.opts
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eps := h.hd.Endpoints()
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h.Unlock()
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service := serviceDef(opts)
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service.Endpoints = eps
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rOpts := []registry.RegisterOption{
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registry.RegisterTTL(opts.RegisterTTL),
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}
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return opts.Registry.Register(service, rOpts...)
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}
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func (h *httpServer) Deregister() error {
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h.Lock()
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opts := h.opts
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h.Unlock()
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service := serviceDef(opts)
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return opts.Registry.Deregister(service)
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}
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func (h *httpServer) Start() error {
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h.Lock()
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opts := h.opts
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hd := h.hd
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h.Unlock()
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ln, err := net.Listen("tcp", opts.Address)
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if err != nil {
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return err
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}
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h.Lock()
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h.opts.Address = ln.Addr().String()
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h.Unlock()
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handler, ok := hd.Handler().(http.Handler)
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if !ok {
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return errors.New("Server required http.Handler")
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}
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go http.Serve(ln, handler)
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go func() {
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ch := <-h.exit
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ch <- ln.Close()
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}()
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return nil
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}
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func (h *httpServer) Stop() error {
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ch := make(chan error)
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h.exit <- ch
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return <-ch
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}
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func (h *httpServer) String() string {
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return "http"
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}
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func newServer(opts ...server.Option) server.Server {
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return &httpServer{
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opts: newOptions(opts...),
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exit: make(chan chan error),
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}
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}
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func NewServer(opts ...server.Option) server.Server {
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return newServer(opts...)
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}
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