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InfluxDB: Fix regular expression to parse aliases according to documentation (#41186)

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* Fix regular expression to parse aliases that start with either square brackets or dollar sign

* Fix lint
This commit is contained in:
Dimitris Sotirakis 2021-11-02 14:26:11 +02:00 committed by GitHub
parent c788e2f8e8
commit 8a3e192e6a
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 190 additions and 158 deletions
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2
pkg/tsdb/influxdb/response_parser.go
View File

@ -16,7 +16,7 @@ import (
type ResponseParser struct{}
var (
legendFormat = regexp.MustCompile(`\[\[([\@\/\w-]+)(\.[\@\/\w-]+)*\]\]*|(\$*([\@\w-]+?))*`)
legendFormat = regexp.MustCompile(`\[\[([\@\/\w-]+)(\.[\@\/\w-]+)*\]\]*|\$(\s*([\@\w-]+?))*`)
)
func (rp *ResponseParser) Parse(buf io.ReadCloser, query *Query) *backend.QueryDataResponse {

346
pkg/tsdb/influxdb/response_parser_test.go
View File

@ -218,170 +218,202 @@ func TestInfluxdbResponseParser(t *testing.T) {
newField,
)
result := parser.Parse(prepare(response), query)
t.Run("should parse aliases", func(t *testing.T) {
frame := result.Responses["A"]
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
frame := result.Responses["A"]
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $m $measurement", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
query = &Query{Alias: "alias $m $measurement", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name := "alias 10m 10m"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
frame = result.Responses["A"]
name := "alias 10m 10m"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $col", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias mean"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
name = "alias sum"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(333),
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[1], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $col", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias mean"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
name = "alias sum"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(333),
query = &Query{Alias: "alias $tag_datacenter"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(222),
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $tag_datacenter/$tag_datacenter"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America/America"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(222),
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[col]]", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias mean"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $1"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias upc"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $5"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias $5"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "series alias"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "series alias"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[m]] [[measurement]]", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias 10m 10m"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_datacenter]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_dc.region.name]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Northeast"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_cluster-name]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_/cluster/name/]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster/"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_@cluster@name@]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster@"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[1], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
t.Run("shouldn't parse aliases", func(t *testing.T) {
query = &Query{Alias: "alias words with no brackets"}
result = parser.Parse(prepare(response), query)
frame := result.Responses["A"]
name := "alias words with no brackets"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $tag_datacenter"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(222),
query = &Query{Alias: "alias Test 1.5"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Test 1.5"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias Test -1"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Test -1"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $tag_datacenter/$tag_datacenter"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America/America"
testFrame.Name = name
newField = data.NewField("value", labels, []*float64{
pointer.Float64(222),
})
testFrame.Fields[1] = newField
testFrame.Fields[1].Config = &data.FieldConfig{DisplayNameFromDS: name}
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[col]]", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias mean"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $1"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias upc"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias $5"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias $5"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "series alias"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "series alias"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[m]] [[measurement]]", Measurement: "10m"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias 10m 10m"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_datacenter]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias America"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_dc.region.name]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Northeast"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_cluster-name]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_/cluster/name/]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster/"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
query = &Query{Alias: "alias [[tag_@cluster@name@]]"}
result = parser.Parse(prepare(response), query)
frame = result.Responses["A"]
name = "alias Cluster@"
testFrame.Name = name
testFrame.Fields[1].Config.DisplayNameFromDS = name
if diff := cmp.Diff(testFrame, frame.Frames[0], data.FrameTestCompareOptions()...); diff != "" {
t.Errorf("Result mismatch (-want +got):\n%s", diff)
}
})
t.Run("Influxdb response parser with errors", func(t *testing.T) {