mirror of https://github.com/grafana/grafana.git
96 lines
1.8 KiB
Go
96 lines
1.8 KiB
Go
//+build !windows,!nacl,!plan9
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package log
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import (
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"encoding/json"
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"errors"
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"log/syslog"
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)
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type SyslogWriter struct {
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syslog *syslog.Writer
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Network string `json:"network"`
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Address string `json:"address"`
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Facility string `json:"facility"`
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Tag string `json:"tag"`
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}
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func NewSyslog() LoggerInterface {
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return new(SyslogWriter)
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}
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func (sw *SyslogWriter) Init(config string) error {
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if err := json.Unmarshal([]byte(config), sw); err != nil {
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return err
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}
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prio, err := parseFacility(sw.Facility)
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if err != nil {
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return err
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}
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w, err := syslog.Dial(sw.Network, sw.Address, prio, sw.Tag)
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if err != nil {
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return err
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}
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sw.syslog = w
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return nil
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}
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func (sw *SyslogWriter) WriteMsg(msg string, skip, level int) error {
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var err error
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switch level {
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case TRACE, DEBUG:
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err = sw.syslog.Debug(msg)
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case INFO:
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err = sw.syslog.Info(msg)
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case WARN:
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err = sw.syslog.Warning(msg)
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case ERROR:
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err = sw.syslog.Err(msg)
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case CRITICAL:
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err = sw.syslog.Crit(msg)
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case FATAL:
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err = sw.syslog.Alert(msg)
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default:
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err = errors.New("invalid syslog level")
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}
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return err
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}
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func (sw *SyslogWriter) Destroy() {
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sw.syslog.Close()
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}
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func (sw *SyslogWriter) Flush() {}
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var facilities = map[string]syslog.Priority{
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"user": syslog.LOG_USER,
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"daemon": syslog.LOG_DAEMON,
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"local0": syslog.LOG_LOCAL0,
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"local1": syslog.LOG_LOCAL1,
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"local2": syslog.LOG_LOCAL2,
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"local3": syslog.LOG_LOCAL3,
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"local4": syslog.LOG_LOCAL4,
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"local5": syslog.LOG_LOCAL5,
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"local6": syslog.LOG_LOCAL6,
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"local7": syslog.LOG_LOCAL7,
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}
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func parseFacility(facility string) (syslog.Priority, error) {
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prio, ok := facilities[facility]
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if !ok {
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return syslog.LOG_LOCAL0, errors.New("invalid syslog facility")
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}
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return prio, nil
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}
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func init() {
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Register("syslog", NewSyslog)
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}
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