forked from cloudfoundry/gosteno
/
syslog_sink.go
82 lines (64 loc) · 1.28 KB
/
syslog_sink.go
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// +build !windows,!plan9
package gosteno
import (
syslog "github.com/cloudfoundry/gosteno/syslog"
"sync"
)
const (
MaxMessageSize = 1024 * 3
TruncatePostfix = "..."
)
type Syslog struct {
writer *syslog.Writer
codec Codec
sync.Mutex
}
func NewSyslogSink(namespace string) *Syslog {
writer, err := syslog.New(syslog.LOG_DEBUG, namespace)
if err != nil {
panic(err)
}
syslog := new(Syslog)
syslog.writer = writer
return syslog
}
func (s *Syslog) AddRecord(record *Record) {
truncate(record)
bytes, _ := s.codec.EncodeRecord(record)
msg := string(bytes)
s.Lock()
defer s.Unlock()
switch record.Level {
case LOG_FATAL:
s.writer.Crit(msg)
case LOG_ERROR:
s.writer.Err(msg)
case LOG_WARN:
s.writer.Warning(msg)
case LOG_INFO:
s.writer.Info(msg)
case LOG_DEBUG, LOG_DEBUG1, LOG_DEBUG2:
s.writer.Debug(msg)
default:
panic("Unknown log level: " + record.Level.Name)
}
}
func (s *Syslog) Flush() {
// No impl.
}
func (s *Syslog) SetCodec(codec Codec) {
s.Lock()
defer s.Unlock()
s.codec = codec
}
func (s *Syslog) GetCodec() Codec {
s.Lock()
defer s.Unlock()
return s.codec
}
func truncate(record *Record) {
if len(record.Message) <= MaxMessageSize {
return
}
record.Message = record.Message[:MaxMessageSize-len(TruncatePostfix)] + TruncatePostfix
}