feat(mqe): simplify timestamp parsing

pkg/tsdb/mqe/mqe.go

@@ -67,7 +67,7 @@ func (e *MQEExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, quer
 		rawQueries = append(rawQueries, queries...)
 	}
 
-	asdf := &tsdb.QueryResult{}
+	queryResult := &tsdb.QueryResult{}
 	for _, v := range rawQueries {
 		glog.Info("Mqe executor", "query", v)
 
@@ -83,11 +83,11 @@ func (e *MQEExecutor) Execute(ctx context.Context, queries tsdb.QuerySlice, quer
 			return result.WithError(err)
 		}
 
-		asdf.Series = append(asdf.Series, series.Series...)
+		queryResult.Series = append(queryResult.Series, series.Series...)
 	}
 
 	result.QueryResults = make(map[string]*tsdb.QueryResult)
-	result.QueryResults["A"] = asdf
+	result.QueryResults["A"] = queryResult
 
 	return result
 }

pkg/tsdb/mqe/response_parser.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"io/ioutil"
 	"net/http"
-	"time"
 
 	null "gopkg.in/guregu/null.v3"
 
@@ -32,9 +31,9 @@ type MQEResponse struct {
 }
 
 type ResponseTimeRange struct {
-	Start      int64         `json:"start"`
-	End        int64         `json:"end"`
-	Resolution time.Duration `json:"Resolution"`
+	Start      int64 `json:"start"`
+	End        int64 `json:"end"`
+	Resolution int64 `json:"Resolution"`
 }
 
 type MQEResponseSerie struct {
@@ -84,10 +83,9 @@ func (parser *MQEResponseParser) Parse(res *http.Response) (*tsdb.QueryResult, e
 				Name: v.Name,
 			}
 
-			startTime := time.Unix(v.TimeRange.Start*1000, 0)
-			for i, l := range k.Values {
-				timestamp := startTime.Add(time.Duration(int64(v.TimeRange.Resolution) * int64(i)))
-				serie.Points = append(serie.Points, tsdb.NewTimePoint(l, float64(timestamp.UnixNano()/int64(time.Millisecond))))
+			for i, value := range k.Values {
+				timestamp := v.TimeRange.Start + int64(i)*v.TimeRange.Resolution
+				serie.Points = append(serie.Points, tsdb.NewTimePoint(value, float64(timestamp)))
 			}
 
 			series = append(series, serie)

pkg/tsdb/mqe/response_parser_test.go

@@ -27,7 +27,13 @@ func TestMQEResponseParser(t *testing.T) {
 			res, err := parser.Parse(response)
 			So(err, ShouldBeNil)
 			So(len(res.Series), ShouldEqual, 2)
-			So(len(res.Series[0].Points), ShouldEqual, 11)
+			So(len(res.Series[0].Points), ShouldEqual, 14)
+
+			startTime := 1479287280000
+			for i := 0; i < 11; i++ {
+				So(res.Series[0].Points[i][0].Float64, ShouldEqual, i+1)
+				So(res.Series[0].Points[i][1].Float64, ShouldEqual, startTime+(i*30000))
+			}
 		})
 	})
 }
@@ -47,7 +53,7 @@ func init() {
               "app": "demoapp",
               "host": "staples-lab-1"
             },
-            "values": [1,2,3,4,5,6,7,8,9,10,11]
+            "values": [1,2,3,4,5,6,7,8,9,10,11, null, null, null]
           },
           {
             "tagset": {