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Initial DogStatsD implementation (#15)
Initial metrics exporter through DogStatsD with support for all metric types but summary and distribution
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // 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 datadogexporter | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| "github.com/DataDog/datadog-go/statsd" | ||
| "go.opentelemetry.io/collector/consumer/pdata" | ||
| "go.opentelemetry.io/collector/exporter/exporterhelper" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| type dogStatsDExporter struct { | ||
| logger *zap.Logger | ||
| cfg *Config | ||
| client *statsd.Client | ||
| } | ||
|
|
||
| func newDogStatsDExporter(logger *zap.Logger, cfg *Config) (*dogStatsDExporter, error) { | ||
|
|
||
| client, err := statsd.New( | ||
| cfg.MetricsURL, | ||
| statsd.WithNamespace("opentelemetry."), | ||
| statsd.WithTags(cfg.Tags), | ||
| ) | ||
|
|
||
| if err != nil { | ||
| return nil, fmt.Errorf("Failed to initialize DogStatsD client: %s", err) | ||
| } | ||
|
|
||
| return &dogStatsDExporter{logger, cfg, client}, nil | ||
| } | ||
|
|
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| func (exp *dogStatsDExporter) PushMetricsData(_ context.Context, md pdata.Metrics) (int, error) { | ||
| metrics, droppedTimeSeries, err := MapMetrics(exp, md) | ||
|
|
||
| if err != nil { | ||
| return droppedTimeSeries, err | ||
| } | ||
|
|
||
| for name, data := range metrics { | ||
| for _, metric := range data { | ||
| switch metric.GetType() { | ||
| case Count: | ||
| err = exp.client.Count(name, metric.GetValue().(int64), metric.GetTags(), metric.GetRate()) | ||
| case Gauge: | ||
| err = exp.client.Gauge(name, metric.GetValue().(float64), metric.GetTags(), metric.GetRate()) | ||
| } | ||
|
|
||
| if err != nil { | ||
| return droppedTimeSeries, err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return droppedTimeSeries, nil | ||
| } | ||
|
|
||
| func (exp *dogStatsDExporter) GetLogger() *zap.Logger { | ||
| return exp.logger | ||
| } | ||
|
|
||
| func (exp *dogStatsDExporter) GetConfig() *Config { | ||
| return exp.cfg | ||
| } | ||
|
|
||
| func (exp *dogStatsDExporter) GetQueueSettings() exporterhelper.QueueSettings { | ||
| return exporterhelper.CreateDefaultQueueSettings() | ||
| } | ||
|
|
||
| func (exp *dogStatsDExporter) GetRetrySettings() exporterhelper.RetrySettings { | ||
| return exporterhelper.CreateDefaultRetrySettings() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| // 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 datadogexporter | ||
|
|
||
| import ( | ||
| "context" | ||
| "path" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "go.opentelemetry.io/collector/component" | ||
| "go.opentelemetry.io/collector/component/componenttest" | ||
| "go.opentelemetry.io/collector/config/configcheck" | ||
| "go.opentelemetry.io/collector/config/configmodels" | ||
| "go.opentelemetry.io/collector/config/configtest" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| // Test that the factory creates the default configuration | ||
| func TestCreateDefaultConfig(t *testing.T) { | ||
| factory := NewFactory() | ||
| cfg := factory.CreateDefaultConfig() | ||
|
|
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| assert.Equal(t, cfg, &Config{ | ||
| Site: DefaultSite, | ||
| Tags: DefaultTags, | ||
| Mode: DefaultMode, | ||
| }, "failed to create default config") | ||
|
|
||
| assert.NoError(t, configcheck.ValidateConfig(cfg)) | ||
| } | ||
|
|
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| func TestCreateAgentMetricsExporter(t *testing.T) { | ||
| logger := zap.NewNop() | ||
|
|
||
| factories, err := componenttest.ExampleComponents() | ||
| assert.NoError(t, err) | ||
|
|
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| factory := NewFactory() | ||
| factories.Exporters[configmodels.Type(typeStr)] = factory | ||
| cfg, err := configtest.LoadConfigFile(t, path.Join(".", "testdata", "config.yaml"), factories) | ||
|
|
||
| require.NoError(t, err) | ||
| require.NotNil(t, cfg) | ||
|
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| ctx := context.Background() | ||
| exp, err := factory.CreateMetricsExporter( | ||
| ctx, | ||
| component.ExporterCreateParams{Logger: logger}, | ||
| cfg.Exporters["datadog"], | ||
| ) | ||
| assert.Nil(t, err) | ||
| assert.NotNil(t, exp) | ||
| } | ||
|
|
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| func TestCreateAPIMetricsExporter(t *testing.T) { | ||
| logger := zap.NewNop() | ||
|
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| factories, err := componenttest.ExampleComponents() | ||
| assert.NoError(t, err) | ||
|
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| factory := NewFactory() | ||
| factories.Exporters[configmodels.Type(typeStr)] = factory | ||
| cfg, err := configtest.LoadConfigFile(t, path.Join(".", "testdata", "config.yaml"), factories) | ||
|
|
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| require.NoError(t, err) | ||
| require.NotNil(t, cfg) | ||
|
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| ctx := context.Background() | ||
| exp, err := factory.CreateMetricsExporter( | ||
| ctx, | ||
| component.ExporterCreateParams{Logger: logger}, | ||
| cfg.Exporters["datadog/2"], | ||
| ) | ||
|
|
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| // Not implemented | ||
| assert.NotNil(t, err) | ||
| assert.Nil(t, exp) | ||
| } | ||
|
|
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| func TestCreateAPITraceExporter(t *testing.T) { | ||
| logger := zap.NewNop() | ||
|
|
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| factories, err := componenttest.ExampleComponents() | ||
| assert.NoError(t, err) | ||
|
|
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| factory := NewFactory() | ||
| factories.Exporters[configmodels.Type(typeStr)] = factory | ||
| cfg, err := configtest.LoadConfigFile(t, path.Join(".", "testdata", "config.yaml"), factories) | ||
|
|
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| require.NoError(t, err) | ||
| require.NotNil(t, cfg) | ||
|
|
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| ctx := context.Background() | ||
| exp, err := factory.CreateTraceExporter( | ||
| ctx, | ||
| component.ExporterCreateParams{Logger: logger}, | ||
| cfg.Exporters["datadog/2"], | ||
| ) | ||
|
|
||
| // Not implemented | ||
| assert.NotNil(t, err) | ||
| assert.Nil(t, exp) | ||
| } |
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