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mysql.go
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mysql.go
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package mysqldb
import (
"database/sql"
"fmt"
"time"
_ "github.com/go-sql-driver/mysql"
"github.com/alibaba/pairec/v2/recconf"
)
type Mysql struct {
DSN string
DB *sql.DB
}
var mysqlInstances = make(map[string]*Mysql)
func GetMysql(name string) (*Mysql, error) {
if _, ok := mysqlInstances[name]; !ok {
return nil, fmt.Errorf("Mysql not found, name:%s", name)
}
return mysqlInstances[name], nil
}
func (m *Mysql) Init() error {
db, err := sql.Open("mysql", m.DSN)
if err != nil {
return err
}
db.SetConnMaxLifetime(time.Minute)
db.SetMaxIdleConns(50)
db.SetMaxOpenConns(100)
m.DB = db
return nil
}
func Load(config *recconf.RecommendConfig) {
for name, conf := range config.MysqlConfs {
if _, ok := mysqlInstances[name]; !ok {
m := &Mysql{
DSN: conf.DSN,
}
err := m.Init()
if err != nil {
panic(err)
}
mysqlInstances[name] = m
}
}
}