9f31f3aa8a
* Add an abstract json layout to make it's easier to change json library * Fix import * Fix import sequence * Fix blank lines * Fix blank lines
139 lines
2.8 KiB
Go
139 lines
2.8 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package log
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import (
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"fmt"
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"io"
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"net"
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"code.gitea.io/gitea/modules/json"
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)
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type connWriter struct {
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innerWriter io.WriteCloser
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ReconnectOnMsg bool `json:"reconnectOnMsg"`
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Reconnect bool `json:"reconnect"`
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Net string `json:"net"`
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Addr string `json:"addr"`
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}
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// Close the inner writer
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func (i *connWriter) Close() error {
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if i.innerWriter != nil {
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return i.innerWriter.Close()
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}
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return nil
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}
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// Write the data to the connection
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func (i *connWriter) Write(p []byte) (int, error) {
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if i.neededConnectOnMsg() {
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if err := i.connect(); err != nil {
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return 0, err
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}
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}
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if i.ReconnectOnMsg {
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defer i.innerWriter.Close()
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}
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return i.innerWriter.Write(p)
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}
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func (i *connWriter) neededConnectOnMsg() bool {
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if i.Reconnect {
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i.Reconnect = false
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return true
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}
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if i.innerWriter == nil {
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return true
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}
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return i.ReconnectOnMsg
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}
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func (i *connWriter) connect() error {
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if i.innerWriter != nil {
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i.innerWriter.Close()
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i.innerWriter = nil
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}
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conn, err := net.Dial(i.Net, i.Addr)
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if err != nil {
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return err
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}
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if tcpConn, ok := conn.(*net.TCPConn); ok {
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err = tcpConn.SetKeepAlive(true)
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if err != nil {
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return err
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}
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}
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i.innerWriter = conn
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return nil
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}
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func (i *connWriter) releaseReopen() error {
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if i.innerWriter != nil {
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return i.connect()
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}
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return nil
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}
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// ConnLogger implements LoggerProvider.
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// it writes messages in keep-live tcp connection.
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type ConnLogger struct {
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WriterLogger
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ReconnectOnMsg bool `json:"reconnectOnMsg"`
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Reconnect bool `json:"reconnect"`
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Net string `json:"net"`
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Addr string `json:"addr"`
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}
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// NewConn creates new ConnLogger returning as LoggerProvider.
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func NewConn() LoggerProvider {
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conn := new(ConnLogger)
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conn.Level = TRACE
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return conn
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}
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// Init inits connection writer with json config.
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// json config only need key "level".
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func (log *ConnLogger) Init(jsonconfig string) error {
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err := json.Unmarshal([]byte(jsonconfig), log)
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if err != nil {
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return fmt.Errorf("Unable to parse JSON: %v", err)
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}
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log.NewWriterLogger(&connWriter{
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ReconnectOnMsg: log.ReconnectOnMsg,
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Reconnect: log.Reconnect,
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Net: log.Net,
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Addr: log.Addr,
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}, log.Level)
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return nil
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}
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// Flush does nothing for this implementation
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func (log *ConnLogger) Flush() {
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}
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// GetName returns the default name for this implementation
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func (log *ConnLogger) GetName() string {
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return "conn"
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}
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// ReleaseReopen causes the ConnLogger to reconnect to the server
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func (log *ConnLogger) ReleaseReopen() error {
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return log.out.(*connWriter).releaseReopen()
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}
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func init() {
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Register("conn", NewConn)
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}
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