/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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 org.apache.skywalking.apm.plugin.jdk.http; import org.apache.skywalking.apm.agent.core.context.CarrierItem; import org.apache.skywalking.apm.agent.core.context.ContextCarrier; import org.apache.skywalking.apm.agent.core.context.ContextManager; import org.apache.skywalking.apm.agent.core.context.tag.Tags; import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan; import org.apache.skywalking.apm.agent.core.context.trace.SpanLayer; import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance; import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodsAroundInterceptor; import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult; import org.apache.skywalking.apm.network.trace.component.ComponentsDefine; import org.apache.skywalking.apm.util.StringUtil; import sun.net.www.MessageHeader; import java.lang.reflect.Method; import java.net.HttpURLConnection; import java.net.URL; public class HttpClientWriteRequestInterceptor implements InstanceMethodsAroundInterceptor { @Override public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, MethodInterceptResult result) throws Throwable { HttpURLConnection connection = (HttpURLConnection) objInst.getSkyWalkingDynamicField(); MessageHeader headers = (MessageHeader) allArguments[0]; URL url = connection.getURL(); ContextCarrier contextCarrier = new ContextCarrier(); AbstractSpan span = ContextManager.createExitSpan(getPath(url), contextCarrier, getPeer(url)); span.setComponent(ComponentsDefine.JDK_HTTP); Tags.HTTP.METHOD.set(span, connection.getRequestMethod()); Tags.URL.set(span, url.toString()); SpanLayer.asHttp(span); CarrierItem next = contextCarrier.items(); while (next.hasNext()) { next = next.next(); headers.add(next.getHeadKey(), next.getHeadValue()); } } @Override public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, Object ret) throws Throwable { return ret; } @Override public void handleMethodException(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, Throwable t) { AbstractSpan span = ContextManager.activeSpan(); span.errorOccurred().log(t); } private String getPeer(URL url) { String host = url.getHost(); if (url.getPort() > 0) { return host + ":" + url.getPort(); } return host; } private String getPath(URL url) { return StringUtil.isEmpty(url.getPath()) ? "/" : url.getPath(); } }