package mysql import ( "database/sql" "fmt" "time" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/filer/abstract_sql" "github.com/chrislusf/seaweedfs/weed/util" _ "github.com/go-sql-driver/mysql" ) const ( CONNECTION_URL_PATTERN = "%s:%s@tcp(%s:%d)/%s?charset=utf8" ) type SqlGenMysql struct { } var ( _ = abstract_sql.SqlGenerator(&SqlGenMysql{}) ) func (gen *SqlGenMysql) GetSqlInsert(bucket string) string { return "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES(?,?,?,?)" } func (gen *SqlGenMysql) GetSqlUpdate(bucket string) string { return "UPDATE filemeta SET meta=? WHERE dirhash=? AND name=? AND directory=?" } func (gen *SqlGenMysql) GetSqlFind(bucket string) string { return "SELECT meta FROM filemeta WHERE dirhash=? AND name=? AND directory=?" } func (gen *SqlGenMysql) GetSqlDelete(bucket string) string { return "DELETE FROM filemeta WHERE dirhash=? AND name=? AND directory=?" } func (gen *SqlGenMysql) GetSqlDeleteFolderChildren(bucket string) string { return "DELETE FROM filemeta WHERE dirhash=? AND directory=?" } func (gen *SqlGenMysql) GetSqlListExclusive(bucket string) string { return "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>? AND directory=? AND name like ? ORDER BY NAME ASC LIMIT ?" } func (gen *SqlGenMysql) GetSqlListInclusive(bucket string) string { return "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>=? AND directory=? AND name like ? ORDER BY NAME ASC LIMIT ?" } func init() { filer.Stores = append(filer.Stores, &MysqlStore{}) } type MysqlStore struct { abstract_sql.AbstractSqlStore } func (store *MysqlStore) GetName() string { return "mysql" } func (store *MysqlStore) Initialize(configuration util.Configuration, prefix string) (err error) { return store.initialize( configuration.GetString(prefix+"username"), configuration.GetString(prefix+"password"), configuration.GetString(prefix+"hostname"), configuration.GetInt(prefix+"port"), configuration.GetString(prefix+"database"), configuration.GetInt(prefix+"connection_max_idle"), configuration.GetInt(prefix+"connection_max_open"), configuration.GetInt(prefix+"connection_max_lifetime_seconds"), configuration.GetBool(prefix+"interpolateParams"), ) } func (store *MysqlStore) initialize(user, password, hostname string, port int, database string, maxIdle, maxOpen, maxLifetimeSeconds int, interpolateParams bool) (err error) { store.SqlGenerator = &SqlGenMysql{} sqlUrl := fmt.Sprintf(CONNECTION_URL_PATTERN, user, password, hostname, port, database) if interpolateParams { sqlUrl += "&interpolateParams=true" } var dbErr error store.DB, dbErr = sql.Open("mysql", sqlUrl) if dbErr != nil { store.DB.Close() store.DB = nil return fmt.Errorf("can not connect to %s error:%v", sqlUrl, err) } store.DB.SetMaxIdleConns(maxIdle) store.DB.SetMaxOpenConns(maxOpen) store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second) if err = store.DB.Ping(); err != nil { return fmt.Errorf("connect to %s error:%v", sqlUrl, err) } return nil }