Rainbond/eventlog/db/cockroachDBPlugin.go
2018-04-26 15:17:03 +08:00

108 lines
2.8 KiB
Go

// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package db
import (
"database/sql"
"errors"
"log"
"time"
"github.com/goodrain/rainbond/eventlog/conf"
"github.com/Sirupsen/logrus"
"github.com/pquerna/ffjson/ffjson"
)
var initTableSQL = `CREATE TABLE IF NOT EXISTS event_log_message (
"ID" SERIAL PRIMARY KEY,
event_id character varying(40),
start_time character varying(40),
message bytea
)`
type cockroachPlugin struct {
conf conf.DBConf
log *logrus.Entry
url string
db *sql.DB
}
func (m *cockroachPlugin) SaveMessage(mes []*EventLogMessage) error {
if mes == nil || len(mes) < 1 {
return nil
}
data, err := ffjson.Marshal(mes)
if err != nil {
return err
}
compressData, err := compress(data)
if err != nil {
return err
}
time := mes[0].Time
eventID := mes[0].EventID
row, err := m.db.Query(`INSERT INTO "event_log_message" ("event_id","start_time","message") VALUES ($1,$2,$3)`, eventID, time, compressData)
if err != nil {
return errors.New("cockroach plugin insert message error." + err.Error())
}
defer row.Close()
return nil
}
func (m *cockroachPlugin) Close() error {
return m.db.Close()
}
func (m *cockroachPlugin) open() error {
readDB, err := sql.Open("postgres", m.url)
if err != nil {
log.Fatal("error connecting to the database: ", err)
}
readDB.SetMaxIdleConns(m.conf.PoolMaxSize)
readDB.SetMaxOpenConns(m.conf.PoolSize)
for {
err = readDB.Ping()
if err != nil {
m.log.Error("Ping test cockroach error.", err.Error())
time.Sleep(time.Second * 5)
continue
}
break
}
m.db = readDB
tx, err := m.db.Begin()
if err != nil {
return errors.New("cockroach plugin do not support transaction." + err.Error())
}
row, err := tx.Query(initTableSQL)
if err != nil {
tx.Rollback()
return errors.New("cockroach plugin init lable table error." + err.Error())
}
defer row.Close()
if err := tx.Commit(); err != nil {
tx.Rollback()
return errors.New("cockroach plugin init table error." + err.Error())
}
return nil
}