Ejemplo n.º 1
0
func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	conn, err := connectSQLTables(addr, options)
	if err != nil {
		return nil, err
	}
	localOpt, localOptOk, err := options.BoolKey("local_optimize")
	if err != nil {
		return nil, err
	}
	qs.db = conn
	qs.sqlFlavor = "postgres"
	qs.size = -1
	qs.sizes = lru.New(1024)
	qs.ids = lru.New(1024)

	// Skip size checking by default.
	qs.noSizes = true
	if localOptOk {
		if localOpt {
			qs.noSizes = false
		}
	}
	qs.useEstimates, _, err = options.BoolKey("use_estimates")
	if err != nil {
		return nil, err
	}

	return &qs, nil
}
Ejemplo n.º 2
0
func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
	var qs QuadStore
	conn, err := mgo.Dial(addr)
	if err != nil {
		return nil, err
	}
	conn.SetSafe(&mgo.Safe{})
	dbName := DefaultDBName
	val, ok, err := options.StringKey("database_name")
	if err != nil {
		return nil, err
	} else if ok {
		dbName = val
	}
	qs.db = conn.DB(dbName)
	if err := ensureIndexes(qs.db); err != nil {
		conn.Close()
		return nil, err
	}
	qs.session = conn
	qs.ids = lru.New(1 << 16)
	qs.sizes = lru.New(1 << 16)
	return &qs, nil
}