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Add factory and update config for tail sampling processor
Updates open-telemetry#146
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2019, 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 tailsampling | ||
|
|
||
| import ( | ||
| "go.uber.org/zap" | ||
|
|
||
| "github.com/open-telemetry/opentelemetry-service/config/configerror" | ||
| "github.com/open-telemetry/opentelemetry-service/config/configmodels" | ||
| "github.com/open-telemetry/opentelemetry-service/consumer" | ||
| "github.com/open-telemetry/opentelemetry-service/processor" | ||
| "github.com/open-telemetry/opentelemetry-service/service/builder" | ||
| ) | ||
|
|
||
| const ( | ||
| // The value of "type" Tail Sampling in configuration. | ||
| typeStr = "tail-sampling" | ||
| ) | ||
|
|
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| // Factory is the factory for Tail Sampling processor. | ||
| type Factory struct { | ||
| } | ||
|
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| // Type gets the type of the config created by this factory. | ||
| func (f *Factory) Type() string { | ||
| return typeStr | ||
| } | ||
|
|
||
| // CreateTraceProcessor creates a trace processor based on this config. | ||
| func (f *Factory) CreateTraceProcessor( | ||
| logger *zap.Logger, | ||
| nextConsumer consumer.TraceConsumer, | ||
| cfg configmodels.Processor, | ||
| ) (processor.TraceProcessor, error) { | ||
| tCfg := cfg.(*builder.TailBasedCfg) | ||
| return NewTraceProcessor(logger, nextConsumer, *tCfg) | ||
| } | ||
|
|
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| // CreateMetricsProcessor creates a metrics processor based on this config. | ||
| func (f *Factory) CreateMetricsProcessor( | ||
| logger *zap.Logger, | ||
| nextConsumer consumer.MetricsConsumer, | ||
| cfg configmodels.Processor, | ||
| ) (processor.MetricsProcessor, error) { | ||
| return nil, configerror.ErrDataTypeIsNotSupported | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // Copyright 2019, 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 tailsampling | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
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| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "go.uber.org/zap" | ||
|
|
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| "github.com/open-telemetry/opentelemetry-service/exporter/exportertest" | ||
| "github.com/open-telemetry/opentelemetry-service/service/builder" | ||
| ) | ||
|
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| func TestCreateProcessor(t *testing.T) { | ||
| factory := &Factory{} | ||
| require.NotNil(t, factory) | ||
|
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| cfg := builder.NewDefaultTailBasedCfg() | ||
|
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| tp, err := factory.CreateTraceProcessor(zap.NewNop(), exportertest.NewNopTraceExporter(), cfg) | ||
| assert.NotNil(t, tp) | ||
| assert.NoError(t, err, "cannot create trace processor") | ||
|
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| mp, err := factory.CreateMetricsProcessor(zap.NewNop(), nil, cfg) | ||
| assert.Nil(t, mp) | ||
| assert.Error(t, err, "should not be able to create metric processor") | ||
| } |
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