mirror of
https://github.com/gogrlx/nats-server.git
synced 2026-04-02 03:38:42 -07:00
2153a45050
for the process name and service name. This allows the reuse of this code in NATS Streaming Server by invoking the new setters to change the service and process names. Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
108 lines
2.8 KiB
Go
108 lines
2.8 KiB
Go
// Copyright 2012-2018 The NATS Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package logger logs to the windows event log
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package logger
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import (
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"fmt"
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"os"
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"strings"
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"golang.org/x/sys/windows/svc/eventlog"
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)
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var natsEventSource = "NATS-Server"
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// SetSyslogName sets the name to use for the system log event source
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func SetSyslogName(name string) {
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natsEventSource = name
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}
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// SysLogger logs to the windows event logger
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type SysLogger struct {
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writer *eventlog.Log
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debug bool
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trace bool
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}
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// NewSysLogger creates a log using the windows event logger
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func NewSysLogger(debug, trace bool) *SysLogger {
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if err := eventlog.InstallAsEventCreate(natsEventSource, eventlog.Info|eventlog.Error|eventlog.Warning); err != nil {
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if !strings.Contains(err.Error(), "registry key already exists") {
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panic(fmt.Sprintf("could not access event log: %v", err))
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}
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}
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w, err := eventlog.Open(natsEventSource)
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if err != nil {
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panic(fmt.Sprintf("could not open event log: %v", err))
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}
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return &SysLogger{
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writer: w,
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debug: debug,
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trace: trace,
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}
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}
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// NewRemoteSysLogger creates a remote event logger
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func NewRemoteSysLogger(fqn string, debug, trace bool) *SysLogger {
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w, err := eventlog.OpenRemote(fqn, natsEventSource)
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if err != nil {
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panic(fmt.Sprintf("could not open event log: %v", err))
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}
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return &SysLogger{
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writer: w,
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debug: debug,
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trace: trace,
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}
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}
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func formatMsg(tag, format string, v ...interface{}) string {
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orig := fmt.Sprintf(format, v...)
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return fmt.Sprintf("pid[%d][%s]: %s", os.Getpid(), tag, orig)
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}
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// Noticef logs a notice statement
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func (l *SysLogger) Noticef(format string, v ...interface{}) {
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l.writer.Info(1, formatMsg("NOTICE", format, v...))
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}
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// Fatalf logs a fatal error
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func (l *SysLogger) Fatalf(format string, v ...interface{}) {
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msg := formatMsg("FATAL", format, v...)
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l.writer.Error(5, msg)
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panic(msg)
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}
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// Errorf logs an error statement
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func (l *SysLogger) Errorf(format string, v ...interface{}) {
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l.writer.Error(2, formatMsg("ERROR", format, v...))
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}
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// Debugf logs a debug statement
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func (l *SysLogger) Debugf(format string, v ...interface{}) {
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if l.debug {
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l.writer.Info(3, formatMsg("DEBUG", format, v...))
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}
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}
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// Tracef logs a trace statement
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func (l *SysLogger) Tracef(format string, v ...interface{}) {
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if l.trace {
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l.writer.Info(4, formatMsg("TRACE", format, v...))
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}
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}
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