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[exporter/datadog] Add new metrics helper functions based on native A…
…PIs (open-telemetry#16858) * [exporter/datadog] Add new metrics helper functions based on native APIs * Rename utils files to series
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| // Copyright The OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package metrics // import "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/datadogexporter/internal/metrics" | ||
|
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| import ( | ||
| "context" | ||
|
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| "github.com/DataDog/datadog-agent/pkg/otlp/model/translator" | ||
| "github.com/DataDog/datadog-agent/pkg/quantile" | ||
| "github.com/DataDog/datadog-agent/pkg/trace/pb" | ||
| "github.com/DataDog/datadog-api-client-go/v2/api/datadog" | ||
| "github.com/DataDog/datadog-api-client-go/v2/api/datadogV2" | ||
| "go.opentelemetry.io/collector/component" | ||
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| "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/datadogexporter/internal/metrics/sketches" | ||
| ) | ||
|
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| var _ translator.Consumer = (*Consumer)(nil) | ||
| var _ translator.HostConsumer = (*Consumer)(nil) | ||
| var _ translator.TagsConsumer = (*Consumer)(nil) | ||
| var _ translator.APMStatsConsumer = (*Consumer)(nil) | ||
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| // Consumer implements translator.Consumer. It records consumed metrics, sketches and | ||
| // APM stats payloads. It provides them to the caller using the All method. | ||
| type Consumer struct { | ||
| ms []datadogV2.MetricSeries | ||
| sl sketches.SketchSeriesList | ||
| as []pb.ClientStatsPayload | ||
| seenHosts map[string]struct{} | ||
| seenTags map[string]struct{} | ||
| } | ||
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| // NewConsumer creates a new Datadog consumer. It implements translator.Consumer. | ||
| func NewConsumer() *Consumer { | ||
| return &Consumer{ | ||
| seenHosts: make(map[string]struct{}), | ||
| seenTags: make(map[string]struct{}), | ||
| } | ||
| } | ||
|
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| // toDataType maps translator datatypes to DatadogV2's datatypes. | ||
| func (c *Consumer) toDataType(dt translator.MetricDataType) (out datadogV2.MetricIntakeType) { | ||
| out = datadogV2.METRICINTAKETYPE_UNSPECIFIED | ||
|
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| switch dt { | ||
| case translator.Count: | ||
| out = datadogV2.METRICINTAKETYPE_COUNT | ||
| case translator.Gauge: | ||
| out = datadogV2.METRICINTAKETYPE_GAUGE | ||
| } | ||
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| return | ||
| } | ||
|
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| // runningMetrics gets the running metrics for the exporter. | ||
| func (c *Consumer) runningMetrics(timestamp uint64, buildInfo component.BuildInfo) (series []datadogV2.MetricSeries) { | ||
| for host := range c.seenHosts { | ||
| // Report the host as running | ||
| runningMetric := DefaultMetrics("metrics", host, timestamp, buildInfo) | ||
| series = append(series, runningMetric...) | ||
| } | ||
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| for tag := range c.seenTags { | ||
| runningMetrics := DefaultMetrics("metrics", "", timestamp, buildInfo) | ||
| for i := range runningMetrics { | ||
| runningMetrics[i].Tags = append(runningMetrics[i].Tags, tag) | ||
| } | ||
| series = append(series, runningMetrics...) | ||
| } | ||
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| return | ||
| } | ||
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| // All gets all metrics (consumed metrics and running metrics). | ||
| func (c *Consumer) All(timestamp uint64, buildInfo component.BuildInfo, tags []string) ([]datadogV2.MetricSeries, sketches.SketchSeriesList, []pb.ClientStatsPayload) { | ||
| series := c.ms | ||
| series = append(series, c.runningMetrics(timestamp, buildInfo)...) | ||
| if len(tags) == 0 { | ||
| return series, c.sl, c.as | ||
| } | ||
| for i := range series { | ||
| series[i].Tags = append(series[i].Tags, tags...) | ||
| } | ||
| for i := range c.sl { | ||
| c.sl[i].Tags = append(c.sl[i].Tags, tags...) | ||
| } | ||
| for i := range c.as { | ||
| c.as[i].Tags = append(c.as[i].Tags, tags...) | ||
| } | ||
| return series, c.sl, c.as | ||
| } | ||
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| // ConsumeAPMStats implements translator.APMStatsConsumer. | ||
| func (c *Consumer) ConsumeAPMStats(s pb.ClientStatsPayload) { | ||
| c.as = append(c.as, s) | ||
| } | ||
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| // ConsumeTimeSeries implements the translator.Consumer interface. | ||
| func (c *Consumer) ConsumeTimeSeries( | ||
| _ context.Context, | ||
| dims *translator.Dimensions, | ||
| typ translator.MetricDataType, | ||
| timestamp uint64, | ||
| value float64, | ||
| ) { | ||
| dt := c.toDataType(typ) | ||
| met := NewMetric(dims.Name(), dt, timestamp, value, dims.Tags()) | ||
| met.SetResources([]datadogV2.MetricResource{ | ||
| { | ||
| Name: datadog.PtrString(dims.Host()), | ||
| Type: datadog.PtrString("host"), | ||
| }, | ||
| }) | ||
| c.ms = append(c.ms, met) | ||
| } | ||
|
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| // ConsumeSketch implements the translator.Consumer interface. | ||
| func (c *Consumer) ConsumeSketch( | ||
| _ context.Context, | ||
| dims *translator.Dimensions, | ||
| timestamp uint64, | ||
| sketch *quantile.Sketch, | ||
| ) { | ||
| c.sl = append(c.sl, sketches.SketchSeries{ | ||
| Name: dims.Name(), | ||
| Tags: dims.Tags(), | ||
| Host: dims.Host(), | ||
| Interval: 1, | ||
| Points: []sketches.SketchPoint{{ | ||
| Ts: int64(timestamp / 1e9), | ||
| Sketch: sketch, | ||
| }}, | ||
| }) | ||
| } | ||
|
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| // ConsumeHost implements the translator.HostConsumer interface. | ||
| func (c *Consumer) ConsumeHost(host string) { | ||
| c.seenHosts[host] = struct{}{} | ||
| } | ||
|
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| // ConsumeTag implements the translator.TagsConsumer interface. | ||
| func (c *Consumer) ConsumeTag(tag string) { | ||
| c.seenTags[tag] = struct{}{} | ||
| } |
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150 changes: 150 additions & 0 deletions
150
exporter/datadogexporter/internal/metrics/consumer_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package metrics | ||
|
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| import ( | ||
| "context" | ||
| "testing" | ||
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| "github.com/DataDog/datadog-agent/pkg/otlp/model/attributes" | ||
| "github.com/DataDog/datadog-agent/pkg/otlp/model/source" | ||
| "github.com/DataDog/datadog-agent/pkg/otlp/model/translator" | ||
| "github.com/DataDog/datadog-agent/pkg/trace/pb" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "go.opentelemetry.io/collector/component" | ||
| "go.opentelemetry.io/collector/pdata/pmetric" | ||
| conventions "go.opentelemetry.io/collector/semconv/v1.6.1" | ||
| "go.uber.org/zap" | ||
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| "github.com/open-telemetry/opentelemetry-collector-contrib/exporter/datadogexporter/internal/testutil" | ||
| ) | ||
|
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| type testProvider string | ||
|
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| func (t testProvider) Source(context.Context) (source.Source, error) { | ||
| return source.Source{Kind: source.HostnameKind, Identifier: string(t)}, nil | ||
| } | ||
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| func newTranslator(t *testing.T, logger *zap.Logger) *translator.Translator { | ||
| tr, err := translator.New(logger, | ||
| translator.WithHistogramMode(translator.HistogramModeDistributions), | ||
| translator.WithNumberMode(translator.NumberModeCumulativeToDelta), | ||
| translator.WithFallbackSourceProvider(testProvider("fallbackHostname")), | ||
| ) | ||
| require.NoError(t, err) | ||
| return tr | ||
| } | ||
|
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| func TestRunningMetrics(t *testing.T) { | ||
| ms := pmetric.NewMetrics() | ||
| rms := ms.ResourceMetrics() | ||
|
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| rm := rms.AppendEmpty() | ||
| resAttrs := rm.Resource().Attributes() | ||
| resAttrs.PutStr(attributes.AttributeDatadogHostname, "resource-hostname-1") | ||
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| rm = rms.AppendEmpty() | ||
| resAttrs = rm.Resource().Attributes() | ||
| resAttrs.PutStr(attributes.AttributeDatadogHostname, "resource-hostname-1") | ||
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| rm = rms.AppendEmpty() | ||
| resAttrs = rm.Resource().Attributes() | ||
| resAttrs.PutStr(attributes.AttributeDatadogHostname, "resource-hostname-2") | ||
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| rms.AppendEmpty() | ||
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| logger, _ := zap.NewProduction() | ||
| tr := newTranslator(t, logger) | ||
|
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| ctx := context.Background() | ||
| consumer := NewConsumer() | ||
| assert.NoError(t, tr.MapMetrics(ctx, ms, consumer)) | ||
|
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| var runningHostnames []string | ||
| for _, metric := range consumer.runningMetrics(0, component.BuildInfo{}) { | ||
| for _, res := range metric.Resources { | ||
| runningHostnames = append(runningHostnames, *res.Name) | ||
| } | ||
| } | ||
|
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| assert.ElementsMatch(t, | ||
| runningHostnames, | ||
| []string{"fallbackHostname", "resource-hostname-1", "resource-hostname-2"}, | ||
| ) | ||
| } | ||
|
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| func TestTagsMetrics(t *testing.T) { | ||
| ms := pmetric.NewMetrics() | ||
| rms := ms.ResourceMetrics() | ||
|
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| rm := rms.AppendEmpty() | ||
| baseAttrs := testutil.NewAttributeMap(map[string]string{ | ||
| conventions.AttributeCloudProvider: conventions.AttributeCloudProviderAWS, | ||
| conventions.AttributeCloudPlatform: conventions.AttributeCloudPlatformAWSECS, | ||
| conventions.AttributeAWSECSTaskFamily: "example-task-family", | ||
| conventions.AttributeAWSECSTaskRevision: "example-task-revision", | ||
| conventions.AttributeAWSECSLaunchtype: conventions.AttributeAWSECSLaunchtypeFargate, | ||
| }) | ||
| baseAttrs.CopyTo(rm.Resource().Attributes()) | ||
| rm.Resource().Attributes().PutStr(conventions.AttributeAWSECSTaskARN, "task-arn-1") | ||
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| rm = rms.AppendEmpty() | ||
| baseAttrs.CopyTo(rm.Resource().Attributes()) | ||
| rm.Resource().Attributes().PutStr(conventions.AttributeAWSECSTaskARN, "task-arn-2") | ||
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| rm = rms.AppendEmpty() | ||
| baseAttrs.CopyTo(rm.Resource().Attributes()) | ||
| rm.Resource().Attributes().PutStr(conventions.AttributeAWSECSTaskARN, "task-arn-3") | ||
|
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| logger, _ := zap.NewProduction() | ||
| tr := newTranslator(t, logger) | ||
|
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| ctx := context.Background() | ||
| consumer := NewConsumer() | ||
| assert.NoError(t, tr.MapMetrics(ctx, ms, consumer)) | ||
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| runningMetrics := consumer.runningMetrics(0, component.BuildInfo{}) | ||
| var runningTags []string | ||
| var runningHostnames []string | ||
| for _, metric := range runningMetrics { | ||
| runningTags = append(runningTags, metric.Tags...) | ||
| for _, res := range metric.Resources { | ||
| runningHostnames = append(runningHostnames, *res.Name) | ||
| } | ||
| } | ||
|
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| assert.ElementsMatch(t, runningHostnames, []string{"", "", ""}) | ||
| assert.Len(t, runningMetrics, 3) | ||
| assert.ElementsMatch(t, runningTags, []string{"task_arn:task-arn-1", "task_arn:task-arn-2", "task_arn:task-arn-3"}) | ||
| } | ||
|
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| func TestConsumeAPMStats(t *testing.T) { | ||
| c := NewConsumer() | ||
| for _, sp := range testutil.StatsPayloads { | ||
| c.ConsumeAPMStats(sp) | ||
| } | ||
| require.Len(t, c.as, len(testutil.StatsPayloads)) | ||
| require.ElementsMatch(t, c.as, testutil.StatsPayloads) | ||
| _, _, out := c.All(0, component.BuildInfo{}, []string{}) | ||
| require.ElementsMatch(t, out, testutil.StatsPayloads) | ||
| _, _, out = c.All(0, component.BuildInfo{}, []string{"extra:key"}) | ||
| var copies []pb.ClientStatsPayload | ||
| for _, sp := range testutil.StatsPayloads { | ||
| sp.Tags = append(sp.Tags, "extra:key") | ||
| copies = append(copies, sp) | ||
| } | ||
| require.ElementsMatch(t, out, copies) | ||
| } |
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