golis

golis 是一个简单的构建网络消息传输的脚手架，类型java中的mina，简单方便。

根据需要自定义消息报文格式，可以参考例子。

golis 通过IoFilterChain 处理定义好的IoFilter,类似mina。

##Quick Start ######Download and install

go get github.com/pojoin/golis

####example echoServer ######Create file echoServer.go

package main

import (
	"fmt"

	"github.com/pojoin/golis"
)

func main() {
	s := golis.NewServer()
	s.FilterChain().AddLast("test", &filter{})
	s.SetCodecer(&echoProtocalCodec{})
	s.RunOnPort("tcp", ":9090")
}

type echoProtocalCodec struct {
	golis.ProtocalCodec
}

func (*echoProtocalCodec) Decode(buffer *golis.Buffer, dataCh chan<- interface{}) error {
	bs, _ := buffer.ReadBytes(buffer.GetWritePos() - buffer.GetReadPos())
	buffer.ResetRead()
	buffer.ResetWrite()
	dataCh <- bs
	return nil
}

type filter struct{}

func (*filter) SessionOpened(session *golis.Iosession) bool {
	fmt.Println("session opened,the client is ", session.Conn().RemoteAddr().String())
	return true
}

func (*filter) SessionClosed(session *golis.Iosession) bool {
	fmt.Println("session closed")
	return true
}

func (*filter) MsgReceived(session *golis.Iosession, message interface{}) bool {
	if bs, ok := message.([]byte); ok {
		fmt.Println("received msg :", string(bs))
		replayMsg := fmt.Sprintf("echoServer received msg : %v", string(bs))
		session.Write([]byte(replayMsg))
	}
	return true
}

func (*filter) MsgSend(session *golis.Iosession, message interface{}) bool {
	return true
}

func (*filter) ErrorCaught(session *golis.Iosession, err error) bool {
	return true
}

######Build and run

    go run echoServer.go

######test

    telnet 127.0.0.1 9090

More examples