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Merge pull request #1 from ThomasJazz/6195-DelegatingMetricData
Delegating metric data (#6195)
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110 changes: 110 additions & 0 deletions
110
sdk/metrics/src/main/java/io/opentelemetry/sdk/metrics/data/DelegatingMetricData.java
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/* | ||
* Copyright The OpenTelemetry Authors | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package io.opentelemetry.sdk.metrics.data; | ||
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import static java.util.Objects.requireNonNull; | ||
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import io.opentelemetry.sdk.common.InstrumentationScopeInfo; | ||
import io.opentelemetry.sdk.resources.Resource; | ||
import javax.annotation.Nullable; | ||
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/** | ||
* A {@link MetricData} which delegates all methods to another {@link MetricData}. Extend this class to | ||
* modify the {@link MetricData} that will be exported. | ||
*/ | ||
public abstract class DelegatingMetricData implements MetricData { | ||
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private final MetricData delegate; | ||
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protected DelegatingMetricData(MetricData delegate) { | ||
this.delegate = requireNonNull(delegate, "delegate"); | ||
} | ||
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@Override | ||
public Resource getResource() { | ||
return delegate.getResource(); | ||
} | ||
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@Override | ||
public InstrumentationScopeInfo getInstrumentationScopeInfo() { | ||
return delegate.getInstrumentationScopeInfo(); | ||
} | ||
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@Override | ||
public String getName() { | ||
return delegate.getName(); | ||
} | ||
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@Override | ||
public String getDescription() { | ||
return delegate.getDescription(); | ||
} | ||
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@Override | ||
public String getUnit() { | ||
return delegate.getUnit(); | ||
} | ||
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@Override | ||
public MetricDataType getType() { | ||
return delegate.getType(); | ||
} | ||
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@Override | ||
public Data<?> getData() { | ||
return delegate.getData(); | ||
} | ||
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@Override | ||
public boolean equals(@Nullable Object o) { | ||
if (o == this) { | ||
return true; | ||
} | ||
if (o instanceof MetricData) { | ||
MetricData that = (MetricData) o; | ||
return getResource().equals(that.getResource()) && | ||
getInstrumentationScopeInfo().equals(that.getInstrumentationScopeInfo()) && | ||
getName().equals(that.getName()) && | ||
getDescription().equals(that.getDescription()) && | ||
getUnit().equals(that.getUnit()) && | ||
getType().equals(that.getType()) && | ||
getData().equals(that.getData()); | ||
} | ||
return false; | ||
} | ||
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@Override | ||
public int hashCode() { | ||
int result = 1; | ||
result *= 1000003; | ||
result ^= this.getResource().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getInstrumentationScopeInfo().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getName().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getDescription().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getUnit().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getType().hashCode(); | ||
result *= 1000003; | ||
result ^= this.getData().hashCode(); | ||
return result; | ||
} | ||
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@Override | ||
public String toString() { | ||
return "DelegatingMetricData{" + | ||
"resource=" + getResource() + ", " + | ||
"instrumentationScopeInfo=" + getInstrumentationScopeInfo() + ", " + | ||
"name=" + getName() + ", " + | ||
"description=" + getDescription() + ", " + | ||
"unit=" + getUnit() + ", " + | ||
"type=" + getType() + ", " + | ||
"data=" + getData() + | ||
"}"; | ||
} | ||
} |
76 changes: 76 additions & 0 deletions
76
sdk/metrics/src/test/java/io/opentelemetry/sdk/metrics/data/DelegatingMetricDataTest.java
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/* | ||
* Copyright The OpenTelemetry Authors | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package io.opentelemetry.sdk.metrics.data; | ||
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import static org.assertj.core.api.Assertions.assertThat; | ||
import io.opentelemetry.sdk.common.InstrumentationScopeInfo; | ||
import io.opentelemetry.sdk.metrics.internal.data.ImmutableSummaryData; | ||
import io.opentelemetry.sdk.resources.Resource; | ||
import io.opentelemetry.sdk.testing.metrics.TestMetricData; | ||
import org.assertj.core.api.recursive.comparison.RecursiveComparisonConfiguration; | ||
import org.junit.jupiter.api.Test; | ||
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class DelegatingMetricDataTest { | ||
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private static final class NoOpDelegatingMetricData extends DelegatingMetricData { | ||
private NoOpDelegatingMetricData(MetricData delegate) { | ||
super(delegate); | ||
} | ||
} | ||
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private static final class MetricDataWithCustomDescription extends DelegatingMetricData { | ||
private final String description; | ||
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private MetricDataWithCustomDescription(MetricData delegate) { | ||
super(delegate); | ||
this.description = "test"; | ||
} | ||
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@Override | ||
public String getDescription() { | ||
return description; | ||
} | ||
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} | ||
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@Test | ||
void delegates() { | ||
MetricData metricData = createBasicMetricBuilder().build(); | ||
MetricData noOpWrapper = new NoOpDelegatingMetricData(metricData); | ||
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assertThat(noOpWrapper) | ||
.usingRecursiveComparison( | ||
RecursiveComparisonConfiguration.builder().withIgnoredFields("delegate").build()) | ||
.isEqualTo(metricData); | ||
} | ||
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@Test | ||
void overrideDelegate() { | ||
MetricData metricData = createBasicMetricBuilder().build(); | ||
MetricData withCustomDescription = new MetricDataWithCustomDescription(metricData); | ||
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assertThat(withCustomDescription.getDescription()).isEqualTo("test"); | ||
} | ||
@Test | ||
void equals() { | ||
MetricData metricData = createBasicMetricBuilder().build(); | ||
MetricData noOpWrapper = new NoOpDelegatingMetricData(metricData); | ||
MetricData withCustomDescription = new MetricDataWithCustomDescription(metricData); | ||
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assertThat(noOpWrapper).isEqualTo(metricData); | ||
assertThat(metricData).isNotEqualTo(withCustomDescription); | ||
} | ||
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private static TestMetricData.Builder createBasicMetricBuilder() { | ||
return TestMetricData.builder() | ||
.setResource(Resource.empty()) | ||
.setInstrumentationScopeInfo(InstrumentationScopeInfo.empty()) | ||
.setDescription("") | ||
.setUnit("1") | ||
.setName("name") | ||
.setData(ImmutableSummaryData.empty()) | ||
.setType(MetricDataType.SUMMARY); // Not sure what type should be here | ||
} | ||
} |
108 changes: 108 additions & 0 deletions
108
sdk/testing/src/main/java/io/opentelemetry/sdk/testing/metrics/TestMetricData.java
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/* | ||
* Copyright The OpenTelemetry Authors | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
package io.opentelemetry.sdk.testing.metrics; | ||
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import com.google.auto.value.AutoValue; | ||
import io.opentelemetry.sdk.common.InstrumentationScopeInfo; | ||
import io.opentelemetry.sdk.metrics.data.Data; | ||
import io.opentelemetry.sdk.metrics.data.MetricData; | ||
import io.opentelemetry.sdk.metrics.data.MetricDataType; | ||
import io.opentelemetry.sdk.metrics.internal.data.ImmutableSummaryData; | ||
import io.opentelemetry.sdk.resources.Resource; | ||
import javax.annotation.concurrent.Immutable; | ||
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/** | ||
* Immutable representation of all data collected by the {@link io.opentelemetry.sdk.metrics.data.MetricData} | ||
* class. | ||
*/ | ||
@Immutable | ||
@AutoValue | ||
public abstract class TestMetricData implements MetricData { | ||
public static Builder builder() { | ||
return new AutoValue_TestMetricData.Builder() | ||
.setResource(Resource.empty()) | ||
.setName("name") | ||
.setInstrumentationScopeInfo(InstrumentationScopeInfo.empty()) | ||
.setDescription("description") | ||
.setUnit("1") | ||
.setData(ImmutableSummaryData.empty()) | ||
.setType(MetricDataType.SUMMARY); | ||
} | ||
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/** A builder for {@link TestMetricData}. */ | ||
@AutoValue.Builder | ||
public abstract static class Builder { | ||
abstract TestMetricData autoBuild(); | ||
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/** | ||
* Builds and returns a new {@link MetricData} instance from the data in {@code this} | ||
* | ||
* @return a new {@link MetricData} instance | ||
*/ | ||
public TestMetricData build() { | ||
return autoBuild(); | ||
} | ||
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/** | ||
* Sets the resource of the metric | ||
* | ||
* @param resource the resource of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setResource(Resource resource); | ||
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/** | ||
* Sets the name of the metric | ||
* | ||
* @param name the name of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setName(String name); | ||
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/** | ||
* Sets the description of the metric | ||
* | ||
* @param description the description of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setDescription(String description); | ||
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/** | ||
* Sets the unit of the metric | ||
* | ||
* @param unit the unit of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setUnit(String unit); | ||
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/** | ||
* Sets the type of the metric | ||
* | ||
* @param type the type of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setType(MetricDataType type); | ||
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/** | ||
* Sets the data of the metric | ||
* | ||
* @param data the data of the metric | ||
* @return this | ||
*/ | ||
public abstract Builder setData(Data<?> data); | ||
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/** | ||
* Sets the Instrumentation scope of the metric | ||
* | ||
* @param instrumentationScopeInfo the instrumentation scope of the tracer which created this | ||
* metric. | ||
* @return this | ||
*/ | ||
public abstract Builder setInstrumentationScopeInfo( | ||
InstrumentationScopeInfo instrumentationScopeInfo); | ||
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} | ||
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} |