50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
//+build !windows,!plan9
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package logger
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import "log/syslog"
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// SyslogBackend is a simple logger to syslog backend. It automatically maps
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// the internal log levels to appropriate syslog log levels.
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type SyslogBackend struct {
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Writer *syslog.Writer
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}
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// NewSyslogBackend connects to the syslog daemon using UNIX sockets with the
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// given prefix. If prefix is not given, the prefix will be derived from the
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// launched command.
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func NewSyslogBackend(prefix string) (b *SyslogBackend, err error) {
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var w *syslog.Writer
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w, err = syslog.New(syslog.LOG_CRIT, prefix)
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return &SyslogBackend{w}, err
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}
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// NewSyslogBackendPriority is the same as NewSyslogBackend, but with custom
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// syslog priority, like syslog.LOG_LOCAL3|syslog.LOG_DEBUG etc.
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func NewSyslogBackendPriority(prefix string, priority syslog.Priority) (b *SyslogBackend, err error) {
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var w *syslog.Writer
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w, err = syslog.New(priority, prefix)
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return &SyslogBackend{w}, err
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}
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// Log implements the Backend interface.
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func (b *SyslogBackend) Log(level Level, calldepth int, rec *Record) error {
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line := rec.Formatted(calldepth + 1)
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switch level {
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case CRITICAL:
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return b.Writer.Crit(line)
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case ERROR:
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return b.Writer.Err(line)
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case WARNING:
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return b.Writer.Warning(line)
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case NOTICE:
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return b.Writer.Notice(line)
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case INFO:
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return b.Writer.Info(line)
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case DEBUG:
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return b.Writer.Debug(line)
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default:
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}
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panic("unhandled log level")
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}
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