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