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Add Sampler configuration factory #5763
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139 changes: 139 additions & 0 deletions
139
...tor/src/main/java/io/opentelemetry/sdk/extension/incubator/fileconfig/SamplerFactory.java
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/* | ||
* Copyright The OpenTelemetry Authors | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
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package io.opentelemetry.sdk.extension.incubator.fileconfig; | ||
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import static java.util.stream.Collectors.joining; | ||
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import io.opentelemetry.sdk.autoconfigure.internal.NamedSpiManager; | ||
import io.opentelemetry.sdk.autoconfigure.internal.SpiHelper; | ||
import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties; | ||
import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException; | ||
import io.opentelemetry.sdk.autoconfigure.spi.internal.DefaultConfigProperties; | ||
import io.opentelemetry.sdk.autoconfigure.spi.traces.ConfigurableSamplerProvider; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.JaegerRemote; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.ParentBased; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.TraceIdRatioBased; | ||
import io.opentelemetry.sdk.trace.samplers.ParentBasedSamplerBuilder; | ||
import io.opentelemetry.sdk.trace.samplers.Sampler; | ||
import java.io.Closeable; | ||
import java.util.Collections; | ||
import java.util.HashMap; | ||
import java.util.List; | ||
import java.util.Map; | ||
import javax.annotation.Nullable; | ||
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final class SamplerFactory | ||
implements Factory< | ||
io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.Sampler, Sampler> { | ||
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private static final SamplerFactory INSTANCE = new SamplerFactory(); | ||
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private SamplerFactory() {} | ||
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static SamplerFactory getInstance() { | ||
return INSTANCE; | ||
} | ||
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@Override | ||
public Sampler create( | ||
@Nullable io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.Sampler model, | ||
SpiHelper spiHelper, | ||
List<Closeable> closeables) { | ||
if (model == null) { | ||
return Sampler.parentBased(Sampler.alwaysOn()); | ||
} | ||
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if (model.getAlwaysOn() != null) { | ||
return Sampler.alwaysOn(); | ||
} | ||
if (model.getAlwaysOff() != null) { | ||
return Sampler.alwaysOff(); | ||
} | ||
TraceIdRatioBased traceIdRatioBasedModel = model.getTraceIdRatioBased(); | ||
if (traceIdRatioBasedModel != null) { | ||
Double ratio = traceIdRatioBasedModel.getRatio(); | ||
if (ratio == null) { | ||
ratio = 1.0d; | ||
} | ||
return Sampler.traceIdRatioBased(ratio); | ||
} | ||
ParentBased parentBasedModel = model.getParentBased(); | ||
if (parentBasedModel != null) { | ||
Sampler root = | ||
parentBasedModel.getRoot() == null | ||
? Sampler.alwaysOn() | ||
: create(parentBasedModel.getRoot(), spiHelper, closeables); | ||
ParentBasedSamplerBuilder builder = Sampler.parentBasedBuilder(root); | ||
if (parentBasedModel.getRemoteParentSampled() != null) { | ||
builder.setRemoteParentSampled( | ||
create(parentBasedModel.getRemoteParentSampled(), spiHelper, closeables)); | ||
} | ||
if (parentBasedModel.getRemoteParentNotSampled() != null) { | ||
builder.setRemoteParentNotSampled( | ||
create(parentBasedModel.getRemoteParentNotSampled(), spiHelper, closeables)); | ||
} | ||
if (parentBasedModel.getLocalParentSampled() != null) { | ||
builder.setLocalParentSampled( | ||
create(parentBasedModel.getLocalParentSampled(), spiHelper, closeables)); | ||
} | ||
if (parentBasedModel.getLocalParentNotSampled() != null) { | ||
builder.setLocalParentNotSampled( | ||
create(parentBasedModel.getLocalParentNotSampled(), spiHelper, closeables)); | ||
} | ||
return builder.build(); | ||
} | ||
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JaegerRemote jaegerRemoteModel = model.getJaegerRemote(); | ||
if (jaegerRemoteModel != null) { | ||
// Translate from file configuration scheme to environment variable scheme. This is ultimately | ||
// interpreted by JaegerRemoteSamplerProvider, but we want to avoid the dependency on | ||
// opentelemetry-sdk-extension-jaeger-remote-sampler | ||
Map<String, String> properties = new HashMap<>(); | ||
if (jaegerRemoteModel.getEndpoint() != null) { | ||
properties.put("endpoint", jaegerRemoteModel.getEndpoint()); | ||
} | ||
if (jaegerRemoteModel.getInterval() != null) { | ||
properties.put("pollingInterval", String.valueOf(jaegerRemoteModel.getInterval())); | ||
} | ||
// TODO(jack-berg): determine how to support initial sampler. This is first case where a | ||
// component configured via SPI has property that isn't available in the environment variable | ||
// scheme. | ||
String otelTraceSamplerArg = | ||
properties.entrySet().stream() | ||
.map(entry -> entry.getKey() + "=" + entry.getValue()) | ||
.collect(joining(",")); | ||
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// TODO(jack-berg): add method for creating from map | ||
ConfigProperties configProperties = | ||
DefaultConfigProperties.createForTest( | ||
Collections.singletonMap("otel.traces.sampler.arg", otelTraceSamplerArg)); | ||
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return FileConfigUtil.addAndReturn( | ||
closeables, | ||
FileConfigUtil.assertNotNull( | ||
samplerSpiManager(configProperties, spiHelper).getByName("jaeger_remote"), | ||
"jaeger remote sampler")); | ||
} | ||
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// TODO(jack-berg): add support for generic SPI samplers | ||
if (!model.getAdditionalProperties().isEmpty()) { | ||
throw new ConfigurationException( | ||
"Unrecognized sampler(s): " | ||
+ model.getAdditionalProperties().keySet().stream().collect(joining(",", "[", "]"))); | ||
} | ||
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return Sampler.parentBased(Sampler.alwaysOn()); | ||
} | ||
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private static NamedSpiManager<Sampler> samplerSpiManager( | ||
ConfigProperties config, SpiHelper spiHelper) { | ||
return spiHelper.loadConfigurable( | ||
ConfigurableSamplerProvider.class, | ||
ConfigurableSamplerProvider::getName, | ||
ConfigurableSamplerProvider::createSampler, | ||
config); | ||
} | ||
} |
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142 changes: 142 additions & 0 deletions
142
...src/test/java/io/opentelemetry/sdk/extension/incubator/fileconfig/SamplerFactoryTest.java
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,142 @@ | ||
/* | ||
* Copyright The OpenTelemetry Authors | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
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package io.opentelemetry.sdk.extension.incubator.fileconfig; | ||
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import static org.assertj.core.api.Assertions.assertThat; | ||
import static org.assertj.core.api.Assertions.assertThatThrownBy; | ||
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import com.google.common.collect.ImmutableMap; | ||
import io.opentelemetry.internal.testing.CleanupExtension; | ||
import io.opentelemetry.internal.testing.slf4j.SuppressLogger; | ||
import io.opentelemetry.sdk.autoconfigure.internal.SpiHelper; | ||
import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.AlwaysOff; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.AlwaysOn; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.JaegerRemote; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.ParentBased; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.Sampler; | ||
import io.opentelemetry.sdk.extension.incubator.fileconfig.internal.model.TraceIdRatioBased; | ||
import io.opentelemetry.sdk.extension.trace.jaeger.sampler.JaegerRemoteSampler; | ||
import java.io.Closeable; | ||
import java.time.Duration; | ||
import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.stream.Stream; | ||
import javax.annotation.Nullable; | ||
import org.junit.jupiter.api.Test; | ||
import org.junit.jupiter.api.extension.RegisterExtension; | ||
import org.junit.jupiter.params.ParameterizedTest; | ||
import org.junit.jupiter.params.provider.Arguments; | ||
import org.junit.jupiter.params.provider.MethodSource; | ||
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// Suppress logs from JaegerRemoteSampler | ||
@SuppressLogger( | ||
loggerName = "io.opentelemetry.sdk.extension.trace.jaeger.sampler.OkHttpGrpcService") | ||
class SamplerFactoryTest { | ||
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@RegisterExtension CleanupExtension cleanup = new CleanupExtension(); | ||
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private final SpiHelper spiHelper = SpiHelper.create(SamplerFactoryTest.class.getClassLoader()); | ||
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@ParameterizedTest | ||
@MethodSource("createArguments") | ||
void create( | ||
@Nullable Sampler model, io.opentelemetry.sdk.trace.samplers.Sampler expectedSampler) { | ||
// Some samplers like JaegerRemoteSampler are Closeable - ensure these get cleaned up | ||
if (expectedSampler instanceof Closeable) { | ||
cleanup.addCloseable((Closeable) expectedSampler); | ||
} | ||
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List<Closeable> closeables = new ArrayList<>(); | ||
io.opentelemetry.sdk.trace.samplers.Sampler sampler = | ||
SamplerFactory.getInstance().create(model, spiHelper, closeables); | ||
cleanup.addCloseables(closeables); | ||
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assertThat(sampler.toString()).isEqualTo(expectedSampler.toString()); | ||
} | ||
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private static Stream<Arguments> createArguments() { | ||
return Stream.of( | ||
Arguments.of( | ||
null, | ||
io.opentelemetry.sdk.trace.samplers.Sampler.parentBased( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.alwaysOn())), | ||
Arguments.of( | ||
new Sampler().withAlwaysOn(new AlwaysOn()), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.alwaysOn()), | ||
Arguments.of( | ||
new Sampler().withAlwaysOff(new AlwaysOff()), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.alwaysOff()), | ||
Arguments.of( | ||
new Sampler().withTraceIdRatioBased(new TraceIdRatioBased()), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(1.0d)), | ||
Arguments.of( | ||
new Sampler().withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.5d)), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.5)), | ||
Arguments.of( | ||
new Sampler().withParentBased(new ParentBased()), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.parentBased( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.alwaysOn())), | ||
Arguments.of( | ||
new Sampler() | ||
.withParentBased( | ||
new ParentBased() | ||
.withRoot( | ||
new Sampler() | ||
.withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.1d))) | ||
.withRemoteParentSampled( | ||
new Sampler() | ||
.withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.2d))) | ||
.withRemoteParentNotSampled( | ||
new Sampler() | ||
.withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.3d))) | ||
.withLocalParentSampled( | ||
new Sampler() | ||
.withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.4d))) | ||
.withLocalParentNotSampled( | ||
new Sampler() | ||
.withTraceIdRatioBased(new TraceIdRatioBased().withRatio(0.5d)))), | ||
io.opentelemetry.sdk.trace.samplers.Sampler.parentBasedBuilder( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.1d)) | ||
.setRemoteParentSampled( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.2d)) | ||
.setRemoteParentNotSampled( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.3d)) | ||
.setLocalParentSampled( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.4d)) | ||
.setLocalParentNotSampled( | ||
io.opentelemetry.sdk.trace.samplers.Sampler.traceIdRatioBased(0.5d)) | ||
.build()), | ||
Arguments.of( | ||
new Sampler() | ||
.withJaegerRemote( | ||
new JaegerRemote() | ||
.withEndpoint("http://jaeger-remote-endpoint") | ||
.withInterval(10_000) | ||
.withInitialSampler(new Sampler().withAlwaysOff(new AlwaysOff()))), | ||
JaegerRemoteSampler.builder() | ||
.setEndpoint("http://jaeger-remote-endpoint") | ||
.setPollingInterval(Duration.ofSeconds(10)) | ||
.build())); | ||
} | ||
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@Test | ||
void create_SpiExporter() { | ||
List<Closeable> closeables = new ArrayList<>(); | ||
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assertThatThrownBy( | ||
() -> | ||
SamplerFactory.getInstance() | ||
.create( | ||
new Sampler() | ||
.withAdditionalProperty("test", ImmutableMap.of("key1", "value1")), | ||
spiHelper, | ||
new ArrayList<>())) | ||
.isInstanceOf(ConfigurationException.class) | ||
.hasMessage("Unrecognized sampler(s): [test]"); | ||
cleanup.addCloseables(closeables); | ||
} | ||
} |
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Is that because the Jaeger sampler is
Closeable
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Yes