forked from goodrain/rainbond
/
mysqlPlugin.go
136 lines (121 loc) · 3.51 KB
/
mysqlPlugin.go
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// 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"
"github.com/goodrain/rainbond/eventlog/conf"
"io"
"time"
"bytes"
"compress/zlib"
"github.com/Sirupsen/logrus"
_ "github.com/go-sql-driver/mysql"
_ "github.com/lib/pq"
"github.com/pquerna/ffjson/ffjson"
)
var initLableTableSQL = "create table if not exists `event_log_message` (`ID` int(20) NOT NULL auto_increment,`event_id` VARCHAR(40) NOT NULL,`start_time` VARCHAR(40) NOT NULL,`message` blob ,PRIMARY KEY (`id`));"
type mysqlPlugin struct {
conf conf.DBConf
log *logrus.Entry
url string
db *sql.DB
}
func (m *mysqlPlugin) SaveMessage(mes []*EventLogMessage) error {
if mes == nil || len(mes) < 1 {
return nil
}
tx, err := m.db.Begin()
if err != nil {
return errors.New("mysql plugin do not support transaction." + err.Error())
}
data, err := ffjson.Marshal(mes)
if err != nil {
tx.Rollback()
return err
}
compressData, err := compress(data)
if err != nil {
tx.Rollback()
return err
}
time := mes[0].Time
eventID := mes[0].EventID
row, err := tx.Query("INSERT INTO event_log_message (`event_id`,`start_time`,`message`) VALUES (?,?,?) ", eventID, time, compressData)
if err != nil {
tx.Rollback()
return errors.New("mysql plugin insert message error." + err.Error())
}
defer row.Close()
if err := tx.Commit(); err != nil {
tx.Rollback()
return errors.New("mysql plugin insert message commit error." + err.Error())
}
return nil
}
func (m *mysqlPlugin) Close() error {
return m.db.Close()
}
func (m *mysqlPlugin) open() error {
readDB, err := sql.Open("mysql", m.url)
if err != nil {
m.log.Error("Open mysql error.", err.Error())
return err
}
readDB.SetMaxIdleConns(m.conf.PoolMaxSize)
readDB.SetMaxOpenConns(m.conf.PoolSize)
for {
err = readDB.Ping()
if err != nil {
m.log.Error("Ping test mysql error.", err.Error())
time.Sleep(time.Second * 5)
continue
}
break
}
m.db = readDB
tx, err := m.db.Begin()
if err != nil {
return errors.New("mysql plugin do not support transaction." + err.Error())
}
row, err := tx.Query(initLableTableSQL)
if err != nil {
tx.Rollback()
return errors.New("mysql plugin init lable table error." + err.Error())
}
defer row.Close()
if err := tx.Commit(); err != nil {
tx.Rollback()
return errors.New("mysql plugin init table error." + err.Error())
}
return nil
}
func compress(source []byte) ([]byte, error) {
var b bytes.Buffer
w := zlib.NewWriter(&b)
w.Write(source)
w.Close()
return b.Bytes(), nil
}
func uncompress(source []byte) (re []byte, err error) {
r, err := zlib.NewReader(bytes.NewReader(source))
if err != nil {
return nil, err
}
var buffer bytes.Buffer
io.Copy(&buffer, r)
r.Close()
return buffer.Bytes(), nil
}