57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package logstash
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/Sirupsen/logrus"
|
|
)
|
|
|
|
// Formatter generates json in logstash format.
|
|
// Logstash site: http://logstash.net/
|
|
type LogstashFormatter struct {
|
|
Type string // if not empty use for logstash type field.
|
|
|
|
// TimestampFormat sets the format used for timestamps.
|
|
TimestampFormat string
|
|
}
|
|
|
|
func (f *LogstashFormatter) Format(entry *logrus.Entry) ([]byte, error) {
|
|
entry.Data["@version"] = 1
|
|
|
|
if f.TimestampFormat == "" {
|
|
f.TimestampFormat = logrus.DefaultTimestampFormat
|
|
}
|
|
|
|
entry.Data["@timestamp"] = entry.Time.Format(f.TimestampFormat)
|
|
|
|
// set message field
|
|
v, ok := entry.Data["message"]
|
|
if ok {
|
|
entry.Data["fields.message"] = v
|
|
}
|
|
entry.Data["message"] = entry.Message
|
|
|
|
// set level field
|
|
v, ok = entry.Data["level"]
|
|
if ok {
|
|
entry.Data["fields.level"] = v
|
|
}
|
|
entry.Data["level"] = entry.Level.String()
|
|
|
|
// set type field
|
|
if f.Type != "" {
|
|
v, ok = entry.Data["type"]
|
|
if ok {
|
|
entry.Data["fields.type"] = v
|
|
}
|
|
entry.Data["type"] = f.Type
|
|
}
|
|
|
|
serialized, err := json.Marshal(entry.Data)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
|
|
}
|
|
return append(serialized, '\n'), nil
|
|
}
|