rename filer2 to filer

weed/filer/mysql/mysql_store.go

@@ -0,0 +1,74 @@
+package mysql
+
+import (
+	"database/sql"
+	"fmt"
+
+	"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"
+)
+
+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.GetBool(prefix+"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=? AND name like CONCAT(?,'%') ORDER BY NAME ASC LIMIT ?"
+	store.SqlListInclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>=? AND directory=? AND name like CONCAT(?,'%') 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
+}