Golang QuadWriter Examples

Example #1

File: db.go Project: oliverp19/cayley

func Load(qw graph.QuadWriter, cfg *config.Config, dec quad.Unmarshaler) error {
	block := make([]quad.Quad, 0, cfg.LoadSize)
	count := 0
	for {
		t, err := dec.Unmarshal()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}
		block = append(block, t)
		if len(block) == cap(block) {
			count += len(block)
			err := qw.AddQuadSet(block)
			if err != nil {
				return fmt.Errorf("db: failed to load data: %v", err)
			}
			block = block[:0]
			if glog.V(2) {
				glog.V(2).Infof("Wrote %d quads.", count)
			}
		}
	}
	count += len(block)
	err := qw.AddQuadSet(block)
	if err != nil {
		return fmt.Errorf("db: failed to load data: %v", err)
	}
	if glog.V(2) {
		glog.V(2).Infof("Wrote %d quads.", count)
	}

	return nil
}

Example #2

File: cayley.go Project: kris-lab/cayley

func remove(qw graph.QuadWriter, cfg *config.Config, dec quad.Unmarshaler) error {
	for {
		t, err := dec.Unmarshal()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}
		qw.RemoveQuad(t)
	}
	return nil
}

Example #3

File: integration_test.go Project: dennwc/cayley

func remove(qw graph.QuadWriter, cfg *config.Config, dec quad.Reader) error {
	for {
		t, err := dec.ReadQuad()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}
		err = qw.RemoveQuad(t)
		if err != nil {
			return err
		}
	}
	return nil
}

Example #4

File: db.go Project: kris-lab/cayley

func Load(qw graph.QuadWriter, cfg *config.Config, dec quad.Unmarshaler) error {
	block := make([]quad.Quad, 0, cfg.LoadSize)
	for {
		t, err := dec.Unmarshal()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}
		block = append(block, t)
		if len(block) == cap(block) {
			qw.AddQuadSet(block)
			block = block[:0]
		}
	}
	qw.AddQuadSet(block)

	return nil
}