2018-05-26 12:32:15 +00:00
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package mysql
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import (
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"database/sql"
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2018-05-27 18:52:26 +00:00
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"fmt"
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2021-01-14 08:06:15 +00:00
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"time"
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2018-05-26 12:32:15 +00:00
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2020-09-01 07:21:19 +00:00
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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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2018-08-19 22:17:55 +00:00
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"github.com/chrislusf/seaweedfs/weed/util"
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2018-08-19 22:18:37 +00:00
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_ "github.com/go-sql-driver/mysql"
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2018-05-26 12:32:15 +00:00
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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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2021-01-19 21:53:16 +00:00
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type SqlGenMysql struct {
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2021-01-19 23:55:51 +00:00
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createTableSqlTemplate string
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dropTableSqlTemplate string
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2021-01-19 21:53:16 +00:00
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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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2021-01-19 23:55:51 +00:00
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func (gen *SqlGenMysql) GetSqlCreateTable(bucket string) string {
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return fmt.Sprintf(gen.createTableSqlTemplate, bucket)
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}
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func (gen *SqlGenMysql) GetSqlDropTable(bucket string) string {
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return fmt.Sprintf(gen.dropTableSqlTemplate, bucket)
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}
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2018-05-26 12:32:15 +00:00
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func init() {
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2020-09-01 07:21:19 +00:00
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filer.Stores = append(filer.Stores, &MysqlStore{})
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2018-05-26 12:32:15 +00:00
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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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2020-01-29 17:09:55 +00:00
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func (store *MysqlStore) Initialize(configuration util.Configuration, prefix string) (err error) {
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2018-05-26 12:32:15 +00:00
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return store.initialize(
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2020-01-29 17:09:55 +00:00
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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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2021-01-14 06:14:21 +00:00
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configuration.GetInt(prefix+"connection_max_lifetime_seconds"),
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2020-01-29 17:09:55 +00:00
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configuration.GetBool(prefix+"interpolateParams"),
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2018-05-26 12:32:15 +00:00
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)
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}
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2021-01-14 06:14:21 +00:00
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func (store *MysqlStore) initialize(user, password, hostname string, port int, database string, maxIdle, maxOpen,
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2021-01-15 07:11:27 +00:00
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maxLifetimeSeconds int, interpolateParams bool) (err error) {
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2021-01-19 21:53:16 +00:00
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2021-01-19 23:55:51 +00:00
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store.SupportBucketTable = false
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store.SqlGenerator = &SqlGenMysql{
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createTableSqlTemplate: "",
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dropTableSqlTemplate: "drop table %s",
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}
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2018-05-27 05:02:49 +00:00
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2018-05-26 12:32:15 +00:00
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sqlUrl := fmt.Sprintf(CONNECTION_URL_PATTERN, user, password, hostname, port, database)
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2019-11-27 20:34:03 +00:00
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if interpolateParams {
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sqlUrl += "&interpolateParams=true"
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}
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2018-05-26 12:32:15 +00:00
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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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2021-01-15 07:11:27 +00:00
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store.DB.SetConnMaxLifetime(time.Duration(maxLifetimeSeconds) * time.Second)
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2018-05-26 20:35:56 +00:00
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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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2018-05-26 12:32:15 +00:00
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return nil
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}
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