示例#1
0
func (rp *ResponseParser) Parse(response *Response, query *Query) *tsdb.QueryResult {
	queryRes := tsdb.NewQueryResult()

	for _, result := range response.Results {
		queryRes.Series = append(queryRes.Series, rp.transformRows(result.Series, queryRes, query)...)
	}

	return queryRes
}
示例#2
0
func (e *GraphiteExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, context *tsdb.QueryContext) *tsdb.BatchResult {
	result := &tsdb.BatchResult{}

	formData := url.Values{
		"from":          []string{"-" + formatTimeRange(context.TimeRange.From)},
		"until":         []string{formatTimeRange(context.TimeRange.To)},
		"format":        []string{"json"},
		"maxDataPoints": []string{"500"},
	}

	for _, query := range queries {
		if fullTarget, err := query.Model.Get("targetFull").String(); err == nil {
			formData["target"] = []string{fullTarget}
		} else {
			formData["target"] = []string{query.Model.Get("target").MustString()}
		}
	}

	if setting.Env == setting.DEV {
		glog.Debug("Graphite request", "params", formData)
	}

	req, err := e.createRequest(formData)
	if err != nil {
		result.Error = err
		return result
	}

	res, err := ctxhttp.Do(ctx, HttpClient, req)
	if err != nil {
		result.Error = err
		return result
	}

	data, err := e.parseResponse(res)
	if err != nil {
		result.Error = err
		return result
	}

	result.QueryResults = make(map[string]*tsdb.QueryResult)
	queryRes := tsdb.NewQueryResult()

	for _, series := range data {
		queryRes.Series = append(queryRes.Series, &tsdb.TimeSeries{
			Name:   series.Target,
			Points: series.DataPoints,
		})

		if setting.Env == setting.DEV {
			glog.Debug("Graphite response", "target", series.Target, "datapoints", len(series.DataPoints))
		}
	}

	result.QueryResults["A"] = queryRes
	return result
}
示例#3
0
func (e *OpenTsdbExecutor) parseResponse(query OpenTsdbQuery, res *http.Response) (map[string]*tsdb.QueryResult, error) {

	queryResults := make(map[string]*tsdb.QueryResult)
	queryRes := tsdb.NewQueryResult()

	body, err := ioutil.ReadAll(res.Body)
	defer res.Body.Close()
	if err != nil {
		return nil, err
	}

	if res.StatusCode/100 != 2 {
		plog.Info("Request failed", "status", res.Status, "body", string(body))
		return nil, fmt.Errorf("Request failed status: %v", res.Status)
	}

	var data []OpenTsdbResponse
	err = json.Unmarshal(body, &data)
	if err != nil {
		plog.Info("Failed to unmarshal opentsdb response", "error", err, "status", res.Status, "body", string(body))
		return nil, err
	}

	for _, val := range data {
		series := tsdb.TimeSeries{
			Name: val.Metric,
		}

		for timeString, value := range val.DataPoints {
			timestamp, err := strconv.ParseFloat(timeString, 64)
			if err != nil {
				plog.Info("Failed to unmarshal opentsdb timestamp", "timestamp", timeString)
				return nil, err
			}
			series.Points = append(series.Points, tsdb.NewTimePoint(null.FloatFrom(value), timestamp))
		}

		queryRes.Series = append(queryRes.Series, &series)
	}

	queryResults["A"] = queryRes
	return queryResults, nil
}
示例#4
0
func parseResponse(value pmodel.Value, query *PrometheusQuery) (map[string]*tsdb.QueryResult, error) {
	queryResults := make(map[string]*tsdb.QueryResult)
	queryRes := tsdb.NewQueryResult()

	data, ok := value.(pmodel.Matrix)
	if !ok {
		return queryResults, fmt.Errorf("Unsupported result format: %s", value.Type().String())
	}

	for _, v := range data {
		series := tsdb.TimeSeries{
			Name: formatLegend(v.Metric, query),
		}

		for _, k := range v.Values {
			series.Points = append(series.Points, tsdb.NewTimePoint(null.FloatFrom(float64(k.Value)), float64(k.Timestamp.Unix()*1000)))
		}

		queryRes.Series = append(queryRes.Series, &series)
	}

	queryResults["A"] = queryRes
	return queryResults, nil
}
示例#5
0
func init() {
	ScenarioRegistry = make(map[string]*Scenario)
	logger := log.New("tsdb.testdata")

	logger.Debug("Initializing TestData Scenario")

	registerScenario(&Scenario{
		Id:   "random_walk",
		Name: "Random Walk",

		Handler: func(query *tsdb.Query, context *tsdb.QueryContext) *tsdb.QueryResult {
			timeWalkerMs := context.TimeRange.GetFromAsMsEpoch()
			to := context.TimeRange.GetToAsMsEpoch()

			series := newSeriesForQuery(query)

			points := make(tsdb.TimeSeriesPoints, 0)
			walker := rand.Float64() * 100

			for i := int64(0); i < 10000 && timeWalkerMs < to; i++ {
				points = append(points, tsdb.NewTimePoint(walker, float64(timeWalkerMs)))

				walker += rand.Float64() - 0.5
				timeWalkerMs += query.IntervalMs
			}

			series.Points = points

			queryRes := tsdb.NewQueryResult()
			queryRes.Series = append(queryRes.Series, series)
			return queryRes
		},
	})

	registerScenario(&Scenario{
		Id:   "no_data_points",
		Name: "No Data Points",
		Handler: func(query *tsdb.Query, context *tsdb.QueryContext) *tsdb.QueryResult {
			return tsdb.NewQueryResult()
		},
	})

	registerScenario(&Scenario{
		Id:   "datapoints_outside_range",
		Name: "Datapoints Outside Range",
		Handler: func(query *tsdb.Query, context *tsdb.QueryContext) *tsdb.QueryResult {
			queryRes := tsdb.NewQueryResult()

			series := newSeriesForQuery(query)
			outsideTime := context.TimeRange.MustGetFrom().Add(-1*time.Hour).Unix() * 1000

			series.Points = append(series.Points, tsdb.NewTimePoint(10, float64(outsideTime)))
			queryRes.Series = append(queryRes.Series, series)

			return queryRes
		},
	})

	registerScenario(&Scenario{
		Id:          "csv_metric_values",
		Name:        "CSV Metric Values",
		StringInput: "1,20,90,30,5,0",
		Handler: func(query *tsdb.Query, context *tsdb.QueryContext) *tsdb.QueryResult {
			queryRes := tsdb.NewQueryResult()

			stringInput := query.Model.Get("stringInput").MustString()
			values := []float64{}
			for _, strVal := range strings.Split(stringInput, ",") {
				if val, err := strconv.ParseFloat(strVal, 64); err == nil {
					values = append(values, val)
				}
			}

			if len(values) == 0 {
				return queryRes
			}

			series := newSeriesForQuery(query)
			startTime := context.TimeRange.GetFromAsMsEpoch()
			endTime := context.TimeRange.GetToAsMsEpoch()
			step := (endTime - startTime) / int64(len(values)-1)

			for _, val := range values {
				series.Points = append(series.Points, tsdb.NewTimePoint(val, float64(startTime)))
				startTime += step
			}

			queryRes.Series = append(queryRes.Series, series)

			return queryRes
		},
	})
}