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ForkJoinTaskInstrumentation.java
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ForkJoinTaskInstrumentation.java
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/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. licenses this file to you 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 co.elastic.apm.agent.concurrent;
import co.elastic.apm.agent.sdk.ElasticApmInstrumentation;
import co.elastic.apm.agent.tracer.GlobalTracer;
import co.elastic.apm.agent.tracer.Tracer;
import net.bytebuddy.asm.Advice;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.matcher.ElementMatcher;
import javax.annotation.Nullable;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.ForkJoinTask;
import static net.bytebuddy.matcher.ElementMatchers.is;
import static net.bytebuddy.matcher.ElementMatchers.named;
import static net.bytebuddy.matcher.ElementMatchers.returns;
/**
* Instruments {@link ForkJoinTask#fork()} to support parallel streams.
*/
public class ForkJoinTaskInstrumentation extends ElasticApmInstrumentation {
private static final Tracer tracer = GlobalTracer.get();
@Override
public ElementMatcher<? super TypeDescription> getTypeMatcher() {
return is(ForkJoinTask.class);
}
@Override
public ElementMatcher<? super MethodDescription> getMethodMatcher() {
return named("fork").and(returns(ForkJoinTask.class));
}
@Override
public Collection<String> getInstrumentationGroupNames() {
return Arrays.asList("concurrent", "fork-join");
}
public static class AdviceClass {
@Advice.OnMethodEnter(suppress = Throwable.class, inline = false)
public static void onExecute(@Advice.This ForkJoinTask<?> thiz) {
JavaConcurrent.withContext(thiz, tracer);
}
@Advice.OnMethodExit(suppress = Throwable.class, onThrowable = Throwable.class, inline = false)
public static void onExit(@Nullable @Advice.Thrown Throwable thrown,
@Advice.This ForkJoinTask<?> thiz) {
JavaConcurrent.doFinally(thrown, thiz);
}
}
}