/
server.go
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/
server.go
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// Copyright 2016 polaris. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
// http://studygolang.com
// Author:polaris polaris@studygolang.com
package luna
import (
"net"
"net/http"
"net/rpc"
"net/rpc/jsonrpc"
"strconv"
"strings"
"github.com/polaris1119/goutils"
"github.com/ugorji/go/codec"
)
const (
HttpPortAdd = 100
)
const (
EncodingTypeJson = iota
EncodingTypeMsgpack
EncodingTypeGob
)
const (
JsonRpcPath, JsonDebugPath = "/_rpc_json", "/debug/rpc_json"
MsgpackRpcPath, MsgpackDebugPath = "/_rpc_msgpack", "/debug/rpc_msgpack"
GobRpcPath, GobDebugPath = "/_rpc_gob", "/debug/rpc_gob"
)
var (
RpcPathMap = map[uint8]string{
EncodingTypeJson: JsonRpcPath,
EncodingTypeMsgpack: MsgpackRpcPath,
EncodingTypeGob: GobRpcPath,
}
DebugPathMap = map[uint8]string{
EncodingTypeJson: JsonDebugPath,
EncodingTypeMsgpack: MsgpackDebugPath,
EncodingTypeGob: GobDebugPath,
}
)
func Register(services ...interface{}) error {
return DefaultRpcServer.Register(services...)
}
func RegisterName(name string, rcvr interface{}) error {
return DefaultRpcServer.RegisterName(name, rcvr)
}
func ListenAndServe(tcpAddr string) error {
return DefaultRpcServer.ListenAndServe(tcpAddr)
}
var DefaultRpcServer = NewRpcServer()
type RpcServer struct {
*rpc.Server
// 基于 TCP 的 RPC,如 127.0.0.1:1234
tcpAddr string
// TODO:未实现
// 基于 HTTP 的 RPC,如 127.0.0.1:1334
// 如果没指定,默认端口是 tcpAddr端口 + 100
httpAddr string
// 数据编码类型
encodingType uint8
}
func NewRpcServer() *RpcServer {
return NewRpcServerWithEncoding(EncodingTypeJson)
}
func NewRpcServerWithEncoding(encodingType uint8) *RpcServer {
return &RpcServer{
Server: rpc.NewServer(),
encodingType: encodingType,
}
}
func (r *RpcServer) ListenAndServe(tcpAddr string) error {
tcpPort, host := tcpAddr, ""
tcpAddrs := strings.Split(tcpAddr, ":")
if len(tcpAddrs) == 2 {
host = tcpAddrs[0]
tcpPort = tcpAddrs[1]
}
httpPort := strconv.Itoa(goutils.MustInt(tcpPort, 0) + HttpPortAdd)
r.tcpAddr = tcpAddr
r.httpAddr = host + ":" + httpPort
go r.ListenTcpAndServe(tcpAddr)
// r.ListenHttpAndServe(r.httpAddr)
select {}
}
func (r *RpcServer) ListenTcpAndServe(tcpAddr string) error {
if tcpAddr == "" {
tcpAddr = r.tcpAddr
}
ln, err := net.Listen("tcp", tcpAddr)
if err != nil {
return err
}
var conn net.Conn
for {
conn, err = ln.Accept()
if err != nil {
// TODO:
continue
}
go r.serveCodec(conn)
}
}
func (r *RpcServer) ListenHttpAndServe(httpAddr string) error {
if httpAddr == "" {
httpAddr = r.httpAddr
}
r.HandleHTTP(RpcPathMap[r.encodingType], DebugPathMap[r.encodingType])
ln, err := net.Listen("tcp", httpAddr)
if err != nil {
return err
}
go http.Serve(ln, nil)
return nil
}
func (r *RpcServer) Register(services ...interface{}) error {
var err error
for _, service := range services {
err = r.Server.Register(service)
}
return err
}
func (r *RpcServer) serveCodec(conn net.Conn) {
switch r.encodingType {
case EncodingTypeJson:
r.serveJson(conn)
case EncodingTypeMsgpack:
r.serveMsgpack(conn)
case EncodingTypeGob:
r.ServeConn(conn)
default:
r.serveJson(conn)
}
}
func (r *RpcServer) serveJson(conn net.Conn) {
rpcCodec := jsonrpc.NewServerCodec(conn)
r.ServeCodec(rpcCodec)
}
func (r *RpcServer) serveMsgpack(conn net.Conn) {
rpcCodec := codec.MsgpackSpecRpc.ServerCodec(conn, new(codec.MsgpackHandle))
r.ServeCodec(rpcCodec)
}