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Beego/logs/es/es.go
2020-06-06 20:14:01 +08:00

97 lines
1.8 KiB
Go

package es
import (
"context"
"encoding/json"
"errors"
"fmt"
"net/url"
"strings"
"time"
"github.com/elastic/go-elasticsearch/v6"
"github.com/elastic/go-elasticsearch/v6/esapi"
"github.com/astaxie/beego/logs"
)
// NewES return a LoggerInterface
func NewES() logs.Logger {
cw := &esLogger{
Level: logs.LevelDebug,
}
return cw
}
type esLogger struct {
*elasticsearch.Client
DSN string `json:"dsn"`
Level int `json:"level"`
}
// {"dsn":"http://localhost:9200/","level":1}
func (el *esLogger) Init(jsonconfig string) error {
err := json.Unmarshal([]byte(jsonconfig), el)
if err != nil {
return err
}
if el.DSN == "" {
return errors.New("empty dsn")
} else if u, err := url.Parse(el.DSN); err != nil {
return err
} else if u.Path == "" {
return errors.New("missing prefix")
} else {
conn, err := elasticsearch.NewClient(elasticsearch.Config{
Addresses: []string{u.Host},
})
if err != nil {
return err
}
el.Client = conn
}
return nil
}
// WriteMsg will write the msg and level into es
func (el *esLogger) WriteMsg(when time.Time, msg string, level int) error {
if level > el.Level {
return nil
}
idx := LogDocument{
timestamp: when.Format(time.RFC3339),
msg: msg,
}
body, err := json.Marshal(idx)
if err != nil {
return err
}
req := esapi.IndexRequest{
Index: fmt.Sprintf("%04d.%02d.%02d", when.Year(), when.Month(), when.Day()),
DocumentType: "logs",
Body: strings.NewReader(string(body)),
}
_, err = req.Do(context.Background(), el.Client)
return err
}
// Destroy is a empty method
func (el *esLogger) Destroy() {
}
// Flush is a empty method
func (el *esLogger) Flush() {
}
type LogDocument struct {
timestamp string
msg string
}
func init() {
logs.Register(logs.AdapterEs, NewES)
}