mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-06-28 05:12:13 +02:00
68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
package mysql
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import (
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"database/sql"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/filer2"
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"github.com/chrislusf/seaweedfs/weed/filer2/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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func init() {
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filer2.Stores = append(filer2.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) (err error) {
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return store.initialize(
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configuration.GetString("username"),
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configuration.GetString("password"),
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configuration.GetString("hostname"),
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configuration.GetInt("port"),
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configuration.GetString("database"),
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configuration.GetInt("connection_max_idle"),
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configuration.GetInt("connection_max_open"),
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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 int) (err error) {
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store.SqlInsert = "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES(?,?,?,?)"
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store.SqlUpdate = "UPDATE filemeta SET meta=? WHERE dirhash=? AND name=? AND directory=?"
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store.SqlFind = "SELECT meta FROM filemeta WHERE dirhash=? AND name=? AND directory=?"
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store.SqlDelete = "DELETE FROM filemeta WHERE dirhash=? AND name=? AND directory=?"
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store.SqlListExclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>? AND directory=? ORDER BY NAME ASC LIMIT ?"
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store.SqlListInclusive = "SELECT NAME, meta FROM filemeta WHERE dirhash=? AND name>=? AND directory=? ORDER BY NAME ASC LIMIT ?"
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sqlUrl := fmt.Sprintf(CONNECTION_URL_PATTERN, user, password, hostname, port, database)
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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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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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