package mysql import ( "database/sql" "fmt" "github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/filer2/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" ) func init() { filer2.Stores = append(filer2.Stores, &MysqlStore{}) } type MysqlStore struct { abstract_sql.AbstractSqlStore } func (store *MysqlStore) GetName() string { return "mysql" } func (store *MysqlStore) Initialize(configuration util.Configuration) (err error) { return store.initialize( configuration.GetString("username"), configuration.GetString("password"), configuration.GetString("hostname"), configuration.GetInt("port"), configuration.GetString("database"), configuration.GetInt("connection_max_idle"), configuration.GetInt("connection_max_open"), configuration.GetBool("interpolateParams"), ) } func (store *MysqlStore) initialize(user, password, hostname string, port int, database string, maxIdle, maxOpen int, interpolateParams bool) (err error) { store.SqlInsert = "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES(?,?,?,?)" store.SqlUpdate = "UPDATE filemeta SET meta=? WHERE dirhash=? AND name=? AND directory=?" store.SqlFind = "SELECT meta FROM filemeta WHERE dirhash=? AND name=? AND directory=?" store.SqlDelete = "DELETE FROM filemeta WHERE dirhash=? AND name=? AND directory=?" store.SqlDeleteFolderChildren = "DELETE FROM filemeta WHERE dirhash=? AND directory=?" store.SqlListExclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>? AND directory=? ORDER BY NAME ASC LIMIT ?" store.SqlListInclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>=? AND directory=? ORDER BY NAME ASC LIMIT ?" 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) if err = store.DB.Ping(); err != nil { return fmt.Errorf("connect to %s error:%v", sqlUrl, err) } return nil }