98 lines
1.8 KiB
Go
98 lines
1.8 KiB
Go
package mysql
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import (
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"common/config"
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pointQuery "common/db/mysql/point/query"
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"common/log"
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"database/sql"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"time"
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)
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type DBName string
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const (
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DBNamePoint DBName = "point"
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)
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var dbs = make(map[DBName]*sql.DB)
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var queryS = make(map[DBName]interface{})
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func Init(cfg map[string]*config.MySQLConfig) error {
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for name, oneConfig := range cfg {
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switch DBName(name) {
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case DBNamePoint:
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if db, err := initOneDB(oneConfig); err != nil {
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return err
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} else {
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dbs[DBNamePoint], _ = db.DB()
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queryS[DBNamePoint] = pointQuery.Use(db)
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}
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}
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}
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return nil
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}
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func initOneDB(cfg *config.MySQLConfig) (*gorm.DB, error) {
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db, err := gorm.Open(
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mysql.Open(cfg.Dsn),
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&gorm.Config{
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TranslateError: true,
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Logger: logger.Default.LogMode(parseLogLevel(cfg.LogLevel)),
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},
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)
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if err != nil {
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return nil, err
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}
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sqlDB, err := db.DB()
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if err != nil {
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return nil, err
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}
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sqlDB.SetMaxOpenConns(int(cfg.MaxOpenConn))
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sqlDB.SetMaxIdleConns(int(cfg.MaxIdleConn))
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sqlDB.SetConnMaxLifetime(time.Duration(cfg.ConnMaxLifetimeSec) * time.Second)
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sqlDB.SetConnMaxIdleTime(time.Duration(cfg.ConnMaxIdleTimeSec) * time.Second)
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return db, nil
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}
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func parseLogLevel(logLevel string) logger.LogLevel {
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switch logLevel {
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case "silent":
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return logger.Silent
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case "error":
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return logger.Error
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case "warn":
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return logger.Warn
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case "info":
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return logger.Info
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}
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return logger.Info
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}
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func GetPointDB() *pointQuery.Query {
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return getQuery[*pointQuery.Query](DBNamePoint)
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}
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func getQuery[T any](dbName DBName) (result T) {
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if q, ok := queryS[dbName]; ok {
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result, _ = q.(T)
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}
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return
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}
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func Close() error {
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if dbs == nil {
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return nil
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}
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for name, db := range dbs {
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if err := db.Close(); err != nil {
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log.Errorf("close db %s error: %v", name, err)
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}
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}
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return nil
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}
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