105 lines
2.1 KiB
Go
105 lines
2.1 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package log
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io"
|
|
"log"
|
|
"net"
|
|
)
|
|
|
|
// ConnWriter implements LoggerInterface.
|
|
// it writes messages in keep-live tcp connection.
|
|
type ConnWriter struct {
|
|
lg *log.Logger
|
|
innerWriter io.WriteCloser
|
|
ReconnectOnMsg bool `json:"reconnectOnMsg"`
|
|
Reconnect bool `json:"reconnect"`
|
|
Net string `json:"net"`
|
|
Addr string `json:"addr"`
|
|
Level int `json:"level"`
|
|
}
|
|
|
|
// NewConn creates new ConnWrite returning as LoggerInterface.
|
|
func NewConn() LoggerInterface {
|
|
conn := new(ConnWriter)
|
|
conn.Level = TRACE
|
|
return conn
|
|
}
|
|
|
|
// Init inits connection writer with json config.
|
|
// json config only need key "level".
|
|
func (cw *ConnWriter) Init(jsonconfig string) error {
|
|
return json.Unmarshal([]byte(jsonconfig), cw)
|
|
}
|
|
|
|
// WriteMsg writes message in connection.
|
|
// if connection is down, try to re-connect.
|
|
func (cw *ConnWriter) WriteMsg(msg string, skip, level int) error {
|
|
if cw.Level > level {
|
|
return nil
|
|
}
|
|
if cw.neddedConnectOnMsg() {
|
|
if err := cw.connect(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if cw.ReconnectOnMsg {
|
|
defer cw.innerWriter.Close()
|
|
}
|
|
cw.lg.Println(msg)
|
|
return nil
|
|
}
|
|
|
|
// Flush no things for this implementation
|
|
func (cw *ConnWriter) Flush() {
|
|
}
|
|
|
|
// Destroy destroy connection writer and close tcp listener.
|
|
func (cw *ConnWriter) Destroy() {
|
|
if cw.innerWriter == nil {
|
|
return
|
|
}
|
|
cw.innerWriter.Close()
|
|
}
|
|
|
|
func (cw *ConnWriter) connect() error {
|
|
if cw.innerWriter != nil {
|
|
cw.innerWriter.Close()
|
|
cw.innerWriter = nil
|
|
}
|
|
|
|
conn, err := net.Dial(cw.Net, cw.Addr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if tcpConn, ok := conn.(*net.TCPConn); ok {
|
|
tcpConn.SetKeepAlive(true)
|
|
}
|
|
|
|
cw.innerWriter = conn
|
|
cw.lg = log.New(conn, "", log.Ldate|log.Ltime)
|
|
return nil
|
|
}
|
|
|
|
func (cw *ConnWriter) neddedConnectOnMsg() bool {
|
|
if cw.Reconnect {
|
|
cw.Reconnect = false
|
|
return true
|
|
}
|
|
|
|
if cw.innerWriter == nil {
|
|
return true
|
|
}
|
|
|
|
return cw.ReconnectOnMsg
|
|
}
|
|
|
|
func init() {
|
|
Register("conn", NewConn)
|
|
}
|