122 lines
2.6 KiB
Go
122 lines
2.6 KiB
Go
package primary
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import (
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server "blackforestbytes.com/simplecloudnotifier"
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"blackforestbytes.com/simplecloudnotifier/db/dbtools"
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"blackforestbytes.com/simplecloudnotifier/db/impl/primary/schema"
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"context"
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"database/sql"
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"errors"
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"fmt"
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"github.com/jmoiron/sqlx"
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_ "github.com/mattn/go-sqlite3"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"gogs.mikescher.com/BlackForestBytes/goext/sq"
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"time"
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)
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type Database struct {
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db sq.DB
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pp *dbtools.DBPreprocessor
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wal bool
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}
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func NewPrimaryDatabase(cfg server.Config) (*Database, error) {
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conf := cfg.DBMain
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url := fmt.Sprintf("file:%s?_journal=%s&_timeout=%d&_fk=%s&_busy_timeout=%d", conf.File, conf.Journal, conf.Timeout.Milliseconds(), langext.FormatBool(conf.CheckForeignKeys, "true", "false"), conf.BusyTimeout.Milliseconds())
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xdb, err := sqlx.Open("sqlite3", url)
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if err != nil {
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return nil, err
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}
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if conf.SingleConn {
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xdb.SetMaxOpenConns(1)
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} else {
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xdb.SetMaxOpenConns(5)
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xdb.SetMaxIdleConns(5)
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xdb.SetConnMaxLifetime(60 * time.Minute)
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xdb.SetConnMaxIdleTime(60 * time.Minute)
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}
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qqdb := sq.NewDB(xdb)
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if conf.EnableLogger {
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qqdb.AddListener(dbtools.DBLogger{})
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}
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pp, err := dbtools.NewDBPreprocessor(qqdb)
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if err != nil {
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return nil, err
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}
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qqdb.AddListener(pp)
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scndb := &Database{db: qqdb, pp: pp, wal: conf.Journal == "WAL"}
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return scndb, nil
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}
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func (db *Database) DB() sq.DB {
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return db.db
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}
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func (db *Database) Migrate(ctx context.Context) error {
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ctx, cancel := context.WithTimeout(context.Background(), 24*time.Second)
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defer cancel()
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currschema, err := db.ReadSchema(ctx)
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if currschema == 0 {
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_, err = db.db.Exec(ctx, schema.PrimarySchema3, sq.PP{})
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if err != nil {
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return err
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}
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err = db.WriteMetaInt(ctx, "schema", 3)
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if err != nil {
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return err
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}
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err = db.pp.Init(ctx)
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if err != nil {
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return err
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}
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return nil
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} else if currschema == 1 {
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return errors.New("cannot autom. upgrade schema 1")
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} else if currschema == 2 {
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return errors.New("cannot autom. upgrade schema 2") //TODO
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} else if currschema == 3 {
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return nil // current
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} else {
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return errors.New(fmt.Sprintf("Unknown DB schema: %d", currschema))
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}
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}
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func (db *Database) Ping(ctx context.Context) error {
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return db.db.Ping(ctx)
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}
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func (db *Database) BeginTx(ctx context.Context) (sq.Tx, error) {
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return db.db.BeginTransaction(ctx, sql.LevelDefault)
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}
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func (db *Database) Stop(ctx context.Context) error {
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if db.wal {
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_, err := db.db.Exec(ctx, "PRAGMA wal_checkpoint;", sq.PP{})
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if err != nil {
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return err
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}
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}
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err := db.db.Exit()
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if err != nil {
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return err
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}
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return nil
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}
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