Esempio n. 1
0
func (wk *worker) runIterator(it graph.Iterator) {
	if wk.wantShape() {
		iterator.OutputQueryShapeForIterator(it, wk.qs, wk.shape)
		return
	}
	it, _ = it.Optimize()
	if clog.V(2) {
		b, err := json.MarshalIndent(it.Describe(), "", "  ")
		if err != nil {
			clog.Infof("failed to format description: %v", err)
		} else {
			clog.Infof("%s", b)
		}
	}
	for {
		select {
		case <-wk.kill:
			return
		default:
		}
		if !graph.Next(it) {
			break
		}
		tags := make(map[string]graph.Value)
		it.TagResults(tags)
		if !wk.send(&Result{actualResults: tags}) {
			break
		}
		for it.NextPath() {
			select {
			case <-wk.kill:
				return
			default:
			}
			tags := make(map[string]graph.Value)
			it.TagResults(tags)
			if !wk.send(&Result{actualResults: tags}) {
				break
			}
		}
	}
	if clog.V(2) {
		bytes, _ := json.MarshalIndent(graph.DumpStats(it), "", "  ")
		clog.Infof(string(bytes))
	}
	it.Close()
}
Esempio n. 2
0
func (wk *worker) runIteratorWithCallback(it graph.Iterator, callback otto.Value, this otto.FunctionCall, limit int) {
	n := 0
	it, _ = it.Optimize()
	if clog.V(2) {
		b, err := json.MarshalIndent(it.Describe(), "", "  ")
		if err != nil {
			clog.Infof("failed to format description: %v", err)
		} else {
			clog.Infof("%s", b)
		}
	}
	for {
		select {
		case <-wk.kill:
			return
		default:
		}
		if !graph.Next(it) {
			break
		}
		tags := make(map[string]graph.Value)
		it.TagResults(tags)
		val, _ := this.Otto.ToValue(wk.tagsToValueMap(tags))
		val, _ = callback.Call(this.This, val)
		n++
		if limit >= 0 && n >= limit {
			break
		}
		for it.NextPath() {
			select {
			case <-wk.kill:
				return
			default:
			}
			tags := make(map[string]graph.Value)
			it.TagResults(tags)
			val, _ := this.Otto.ToValue(wk.tagsToValueMap(tags))
			val, _ = callback.Call(this.This, val)
			n++
			if limit >= 0 && n >= limit {
				break
			}
		}
	}
	it.Close()
}
Esempio n. 3
0
func (wk *worker) runIteratorToArray(it graph.Iterator, limit int) []map[string]string {
	output := make([]map[string]string, 0)
	n := 0
	it, _ = it.Optimize()
	for {
		select {
		case <-wk.kill:
			return nil
		default:
		}
		if !graph.Next(it) {
			break
		}
		tags := make(map[string]graph.Value)
		it.TagResults(tags)
		output = append(output, wk.tagsToValueMap(tags))
		n++
		if limit >= 0 && n >= limit {
			break
		}
		for it.NextPath() {
			select {
			case <-wk.kill:
				return nil
			default:
			}
			tags := make(map[string]graph.Value)
			it.TagResults(tags)
			output = append(output, wk.tagsToValueMap(tags))
			n++
			if limit >= 0 && n >= limit {
				break
			}
		}
	}
	it.Close()
	return output
}