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RestClientTransportInstrumentation.java
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RestClientTransportInstrumentation.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.esrestclient.v8_x;
import co.elastic.apm.agent.esrestclient.ElasticsearchRestClientInstrumentation;
import co.elastic.apm.agent.esrestclient.ElasticsearchRestClientInstrumentationHelper;
import co.elastic.clients.transport.Endpoint;
import net.bytebuddy.asm.Advice;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.matcher.ElementMatcher;
import static net.bytebuddy.matcher.ElementMatchers.*;
/**
* Instruments:
* <ul>
* <li>{@link co.elastic.clients.transport.rest_client.RestClientTransport#performRequest}</li>
* <li>{@link co.elastic.clients.transport.rest_client.RestClientTransport#performRequestAsync} </li>
* </ul>
* To store the current endpoint ID in a thread-local storage
*/
public class RestClientTransportInstrumentation extends ElasticsearchRestClientInstrumentation {
@Override
public ElementMatcher<? super TypeDescription> getTypeMatcher() {
return named("co.elastic.clients.transport.rest_client.RestClientTransport") // 8.x up to 8.8.x
.or(named("co.elastic.clients.transport.ElasticsearchTransportBase")); // 8.9.0+
}
@Override
public ElementMatcher<? super MethodDescription> getMethodMatcher() {
return named("performRequest")
.or(named("performRequestAsync"))
.and(takesArguments(3))
.and(takesArgument(1, named("co.elastic.clients.transport.Endpoint")));
}
@Override
public String getAdviceClassName() {
return getClass().getName() + "$RestClientTransportAdvice";
}
public static class RestClientTransportAdvice {
private static final ElasticsearchRestClientInstrumentationHelper helper = ElasticsearchRestClientInstrumentationHelper.get();
@Advice.OnMethodEnter(suppress = Throwable.class, inline = false)
public static void onEnter(@Advice.Argument(1) Endpoint<?, ?, ?> endpoint) {
helper.setCurrentEndpoint(endpoint.id());
}
@Advice.OnMethodExit(suppress = Throwable.class, onThrowable = Throwable.class, inline = false)
public static void onExit() {
helper.clearCurrentEndpoint();
}
}
}