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io.micrometer.tracing.test.reporter.zipkin.ZipkinOtelSetup Maven / Gradle / Ivy
/**
* Copyright 2023 the original author or 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
*
* https://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 io.micrometer.tracing.test.reporter.zipkin;
import io.micrometer.observation.Observation;
import io.micrometer.observation.ObservationHandler;
import io.micrometer.observation.ObservationRegistry;
import io.micrometer.tracing.SamplerFunction;
import io.micrometer.tracing.exporter.FinishedSpan;
import io.micrometer.tracing.handler.DefaultTracingObservationHandler;
import io.micrometer.tracing.handler.PropagatingReceiverTracingObservationHandler;
import io.micrometer.tracing.handler.PropagatingSenderTracingObservationHandler;
import io.micrometer.tracing.http.HttpClientHandler;
import io.micrometer.tracing.http.HttpServerHandler;
import io.micrometer.tracing.otel.bridge.*;
import io.micrometer.tracing.test.reporter.BuildingBlocks;
import io.micrometer.tracing.test.reporter.zipkin.ZipkinOtelSetup.Builder.OtelBuildingBlocks;
import io.opentelemetry.api.common.Attributes;
import io.opentelemetry.api.trace.Tracer;
import io.opentelemetry.context.propagation.ContextPropagators;
import io.opentelemetry.context.propagation.TextMapPropagator;
import io.opentelemetry.exporter.zipkin.ZipkinSpanExporter;
import io.opentelemetry.extension.trace.propagation.B3Propagator;
import io.opentelemetry.sdk.OpenTelemetrySdk;
import io.opentelemetry.sdk.resources.Resource;
import io.opentelemetry.sdk.trace.SdkTracerProvider;
import io.opentelemetry.sdk.trace.export.BatchSpanProcessor;
import io.opentelemetry.semconv.ResourceAttributes;
import zipkin2.reporter.Sender;
import zipkin2.reporter.urlconnection.URLConnectionSender;
import java.util.Collections;
import java.util.Deque;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
/**
* Provides Zipkin setup with OTel.
*
* @author Marcin Grzejszczak
* @since 1.0.0
*/
public final class ZipkinOtelSetup implements AutoCloseable {
private final Consumer closingFunction;
private final OtelBuildingBlocks otelBuildingBlocks;
ZipkinOtelSetup(Consumer closingFunction, OtelBuildingBlocks otelBuildingBlocks) {
this.closingFunction = closingFunction;
this.otelBuildingBlocks = otelBuildingBlocks;
}
@Override
public void close() {
this.closingFunction.accept(this.otelBuildingBlocks);
}
/**
* @return all the OTel building blocks required to communicate with Zipkin
*/
public OtelBuildingBlocks getBuildingBlocks() {
return this.otelBuildingBlocks;
}
/**
* @return builder for the {@link ZipkinOtelSetup}
*/
public static ZipkinOtelSetup.Builder builder() {
return new ZipkinOtelSetup.Builder();
}
/**
* Builder for OTel with Zipkin.
*/
public static class Builder {
private String applicationName = "observability-test";
private String zipkinUrl = "http://localhost:9411";
private Supplier sender;
private Function zipkinSpanExporter;
private Function sdkTracerProvider;
private Function openTelemetrySdk;
private Function tracer;
private Function otelTracer;
private BiConsumer>> customizers;
@Deprecated
private Function httpServerHandler;
@Deprecated
private Function httpClientHandler;
private Function> handlers;
private Consumer closingFunction;
/**
* All OTel building blocks required to communicate with Zipkin.
*/
public static class OtelBuildingBlocks implements BuildingBlocks {
private final Sender sender;
private final ZipkinSpanExporter zipkinSpanExporter;
private final SdkTracerProvider sdkTracerProvider;
private final OpenTelemetrySdk openTelemetrySdk;
private final io.opentelemetry.api.trace.Tracer tracer;
private final OtelTracer otelTracer;
private final OtelPropagator propagator;
@Deprecated
private final HttpServerHandler httpServerHandler;
@Deprecated
private final HttpClientHandler httpClientHandler;
private final BiConsumer>> customizers;
private final ArrayListSpanProcessor arrayListSpanProcessor;
/**
* Creates a new instance of {@link OtelBuildingBlocks}.
* @param sender sender
* @param zipkinSpanExporter zipkin span exporter
* @param sdkTracerProvider sdk tracer provider
* @param openTelemetrySdk opentelemetry sdk
* @param tracer tracer
* @param otelTracer otel tracer
* @param propagator propagator
* @param httpServerHandler http server handler
* @param httpClientHandler http client handler
* @param customizers observation customizers
* @param arrayListSpanProcessor array list span processor
*/
public OtelBuildingBlocks(Sender sender, ZipkinSpanExporter zipkinSpanExporter,
SdkTracerProvider sdkTracerProvider, OpenTelemetrySdk openTelemetrySdk, Tracer tracer,
OtelTracer otelTracer, OtelPropagator propagator, HttpServerHandler httpServerHandler,
HttpClientHandler httpClientHandler,
BiConsumer>> customizers,
ArrayListSpanProcessor arrayListSpanProcessor) {
this.sender = sender;
this.zipkinSpanExporter = zipkinSpanExporter;
this.sdkTracerProvider = sdkTracerProvider;
this.openTelemetrySdk = openTelemetrySdk;
this.tracer = tracer;
this.otelTracer = otelTracer;
this.propagator = propagator;
this.httpServerHandler = httpServerHandler;
this.httpClientHandler = httpClientHandler;
this.customizers = customizers;
this.arrayListSpanProcessor = arrayListSpanProcessor;
}
/**
* Returns a sender.
* @return a {@link Sender}
*/
public Sender getSender() {
return sender;
}
@Override
public io.micrometer.tracing.Tracer getTracer() {
return this.otelTracer;
}
/**
* @deprecated scheduled for removal in 1.4.0
* @return http server handler
*/
@Deprecated
@Override
public HttpServerHandler getHttpServerHandler() {
return this.httpServerHandler;
}
/**
* @deprecated scheduled for removal in 1.4.0
* @return http client handler
*/
@Deprecated
@Override
public HttpClientHandler getHttpClientHandler() {
return this.httpClientHandler;
}
@Override
public BiConsumer>> getCustomizers() {
return this.customizers;
}
@Override
public List getFinishedSpans() {
return this.arrayListSpanProcessor.spans()
.stream()
.map(OtelFinishedSpan::fromOtel)
.collect(Collectors.toList());
}
@Override
public OtelPropagator getPropagator() {
return this.propagator;
}
}
/**
* Overrides the application name.
* @param applicationName name of the application
* @return this for chaining
*/
public Builder applicationName(String applicationName) {
this.applicationName = applicationName;
return this;
}
/**
* Overrides the Zipkin URL.
* @param zipkinUrl zipkin URL
* @return this for chaining
*/
public Builder zipkinUrl(String zipkinUrl) {
this.zipkinUrl = zipkinUrl;
return this;
}
/**
* Overrides sender.
* @param sender sender provider
* @return this for chaining
*/
public Builder sender(Supplier sender) {
this.sender = sender;
return this;
}
/**
* Overrides Zipkin span exporter.
* @param zipkinSpanExporter exporter provider
* @return this for chaining
*/
public Builder zipkinSpanExporter(Function zipkinSpanExporter) {
this.zipkinSpanExporter = zipkinSpanExporter;
return this;
}
/**
* Overrides the sdk tracer provider.
* @param sdkTracerProvider sdk tracer provider function
* @return this for chaining
*/
public Builder sdkTracerProvider(Function sdkTracerProvider) {
this.sdkTracerProvider = sdkTracerProvider;
return this;
}
/**
* Overrides the opentelemetry sdk provider.
* @param openTelemetrySdk opentelemetry sdk provider
* @return this for chaining
*/
public Builder openTelemetrySdk(Function openTelemetrySdk) {
this.openTelemetrySdk = openTelemetrySdk;
return this;
}
/**
* Overrides Tracer.
* @param tracer tracer provider
* @return this for chaining
*/
public Builder tracer(Function tracer) {
this.tracer = tracer;
return this;
}
/**
* Overrides OTel Tracer.
* @param otelTracer OTel tracer provider
* @return this for chaining
*/
public Builder otelTracer(Function otelTracer) {
this.otelTracer = otelTracer;
return this;
}
/**
* Allows customization of Observation Handlers.
* @param customizers customization provider
* @return this for chaining
*/
public Builder observationHandlerCustomizer(
BiConsumer>> customizers) {
this.customizers = customizers;
return this;
}
/**
* Overrides Http Server Handler.
* @param httpServerHandler http server handler provider
* @return this for chaining
*/
public Builder httpServerHandler(Function httpServerHandler) {
this.httpServerHandler = httpServerHandler;
return this;
}
/**
* Overrides Http Client Handler.
* @param httpClientHandler http client handler provider
* @return this for chaining
*/
public Builder httpClientHandler(Function httpClientHandler) {
this.httpClientHandler = httpClientHandler;
return this;
}
/**
* Overrides Observation Handlers
* @param handlers handlers provider
* @return this for chaining
*/
public Builder handlers(
Function> handlers) {
this.handlers = handlers;
return this;
}
/**
* Overrides the closing function.
* @param closingFunction closing function provider
* @return this for chaining
*/
public Builder closingFunction(Consumer closingFunction) {
this.closingFunction = closingFunction;
return this;
}
/**
* Registers setup.
* @param registry observation registry to which the {@link ObservationHandler}
* should be attached
* @return setup with all OTel building blocks
*/
public ZipkinOtelSetup register(ObservationRegistry registry) {
Sender sender = this.sender != null ? this.sender.get() : sender(this.zipkinUrl);
ZipkinSpanExporter zipkinSpanExporter = this.zipkinSpanExporter != null
? this.zipkinSpanExporter.apply(sender) : zipkinSpanExporter(sender);
ArrayListSpanProcessor arrayListSpanProcessor = new ArrayListSpanProcessor();
SdkTracerProvider sdkTracerProvider = this.sdkTracerProvider != null
? this.sdkTracerProvider.apply(zipkinSpanExporter)
: sdkTracerProvider(zipkinSpanExporter, arrayListSpanProcessor, this.applicationName);
OpenTelemetrySdk openTelemetrySdk = this.openTelemetrySdk != null
? this.openTelemetrySdk.apply(sdkTracerProvider) : openTelemetrySdk(sdkTracerProvider);
io.opentelemetry.api.trace.Tracer tracer = this.tracer != null ? this.tracer.apply(openTelemetrySdk)
: tracer(openTelemetrySdk);
OtelTracer otelTracer = this.otelTracer != null ? this.otelTracer.apply(tracer) : otelTracer(tracer);
HttpServerHandler httpServerHandler = this.httpServerHandler != null
? this.httpServerHandler.apply(openTelemetrySdk) : httpServerHandler(openTelemetrySdk);
HttpClientHandler httpClientHandler = this.httpClientHandler != null
? this.httpClientHandler.apply(openTelemetrySdk) : httpClientHandler(openTelemetrySdk);
BiConsumer>> customizers = this.customizers != null
? this.customizers : (t, h) -> {
};
OtelBuildingBlocks otelBuildingBlocks = new OtelBuildingBlocks(sender, zipkinSpanExporter,
sdkTracerProvider, openTelemetrySdk, tracer, otelTracer,
new OtelPropagator(propagators(Collections.singletonList(B3Propagator.injectingMultiHeaders())),
tracer),
httpServerHandler, httpClientHandler, customizers, arrayListSpanProcessor);
ObservationHandler tracingHandlers = this.handlers != null
? this.handlers.apply(otelBuildingBlocks) : tracingHandlers(otelBuildingBlocks);
registry.observationConfig().observationHandler(tracingHandlers);
Consumer closingFunction = this.closingFunction != null ? this.closingFunction
: closingFunction();
return new ZipkinOtelSetup(closingFunction, otelBuildingBlocks);
}
private static Sender sender(String zipkinUrl) {
return URLConnectionSender.newBuilder()
.connectTimeout(1000)
.readTimeout(1000)
.endpoint((zipkinUrl.endsWith("/") ? zipkinUrl.substring(0, zipkinUrl.length() - 1) : zipkinUrl)
+ "/api/v2/spans")
.build();
}
private static ZipkinSpanExporter zipkinSpanExporter(Sender sender) {
return ZipkinSpanExporter.builder().setSender(sender).build();
}
private static SdkTracerProvider sdkTracerProvider(ZipkinSpanExporter zipkinSpanExporter,
ArrayListSpanProcessor arrayListSpanProcessor, String applicationName) {
return SdkTracerProvider.builder()
.setSampler(io.opentelemetry.sdk.trace.samplers.Sampler.alwaysOn())
.addSpanProcessor(arrayListSpanProcessor)
.addSpanProcessor(BatchSpanProcessor.builder(zipkinSpanExporter)
.setScheduleDelay(100, TimeUnit.MILLISECONDS)
.setExporterTimeout(300, TimeUnit.MILLISECONDS)
.build())
.setResource(Resource.getDefault()
.merge(Resource.create(Attributes.of(ResourceAttributes.SERVICE_NAME, applicationName))))
.build();
}
private static OpenTelemetrySdk openTelemetrySdk(SdkTracerProvider sdkTracerProvider) {
return OpenTelemetrySdk.builder()
.setTracerProvider(sdkTracerProvider)
.setPropagators(ContextPropagators.create(B3Propagator.injectingSingleHeader()))
.build();
}
private static io.opentelemetry.api.trace.Tracer tracer(OpenTelemetrySdk openTelemetrySdk) {
return openTelemetrySdk.getTracerProvider().get("io.micrometer.micrometer-tracing");
}
private static OtelTracer otelTracer(io.opentelemetry.api.trace.Tracer tracer) {
OtelCurrentTraceContext otelCurrentTraceContext = new OtelCurrentTraceContext();
return new OtelTracer(tracer, otelCurrentTraceContext, event -> {
}, new OtelBaggageManager(otelCurrentTraceContext, Collections.emptyList(), Collections.emptyList()));
}
private static ContextPropagators propagators(List propagators) {
if (propagators.isEmpty()) {
return ContextPropagators.noop();
}
return ContextPropagators.create(TextMapPropagator.composite(propagators));
}
private static HttpServerHandler httpServerHandler(OpenTelemetrySdk openTelemetrySdk) {
return new OtelHttpServerHandler(openTelemetrySdk, null, null, Pattern.compile(""),
new DefaultHttpServerAttributesExtractor());
}
private static HttpClientHandler httpClientHandler(OpenTelemetrySdk openTelemetrySdk) {
return new OtelHttpClientHandler(openTelemetrySdk, null, null, SamplerFunction.alwaysSample(),
new DefaultHttpClientAttributesGetter());
}
private static Consumer closingFunction() {
return deps -> deps.sdkTracerProvider.close();
}
@SuppressWarnings("rawtypes")
private static ObservationHandler tracingHandlers(OtelBuildingBlocks otelBuildingBlocks) {
OtelTracer tracer = otelBuildingBlocks.otelTracer;
LinkedList> handlers = new LinkedList<>();
handlers.add(new PropagatingSenderTracingObservationHandler<>(tracer, otelBuildingBlocks.propagator));
handlers.add(new PropagatingReceiverTracingObservationHandler<>(tracer, otelBuildingBlocks.propagator));
handlers.add(new DefaultTracingObservationHandler(tracer));
otelBuildingBlocks.customizers.accept(otelBuildingBlocks, handlers);
return new ObservationHandler.FirstMatchingCompositeObservationHandler(handlers);
}
}
/**
* Runs the given lambda with Zipkin setup.
* @param registry registry to register the handlers against
* @param consumer lambda to be executed with the building blocks
*/
public static void run(ObservationRegistry registry, Consumer consumer) {
run(ZipkinOtelSetup.builder().register(registry), consumer);
}
/**
* @param localZipkinBrave Brave setup with Zipkin
* @param consumer runnable to run
*/
public static void run(ZipkinOtelSetup localZipkinBrave, Consumer consumer) {
try {
consumer.accept(localZipkinBrave.getBuildingBlocks());
}
finally {
localZipkinBrave.close();
}
}
}
