| /* |
| * 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.motan; |
| |
| import com.weibo.api.motan.rpc.Request; |
| import com.weibo.api.motan.rpc.Response; |
| import com.weibo.api.motan.rpc.URL; |
| import java.lang.reflect.Method; |
| import org.apache.skywalking.apm.agent.core.context.ContextCarrier; |
| import org.apache.skywalking.apm.agent.core.context.tag.Tags; |
| 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.context.CarrierItem; |
| import org.apache.skywalking.apm.agent.core.context.ContextManager; |
| import org.apache.skywalking.apm.agent.core.context.trace.AbstractSpan; |
| import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceConstructorInterceptor; |
| 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; |
| |
| /** |
| * {@link MotanProviderInterceptor} create span by fetch request url from {@link EnhancedInstance#getSkyWalkingDynamicField()} |
| * and transport serialized context data to provider side through {@link Request#setAttachment(String, String)}. |
| */ |
| public class MotanConsumerInterceptor implements InstanceConstructorInterceptor, InstanceMethodsAroundInterceptor { |
| @Override |
| public void onConstruct(EnhancedInstance objInst, Object[] allArguments) { |
| objInst.setSkyWalkingDynamicField(allArguments[1]); |
| } |
| |
| @Override |
| public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, |
| MethodInterceptResult result) throws Throwable { |
| |
| URL url = (URL) objInst.getSkyWalkingDynamicField(); |
| Request request = (Request) allArguments[0]; |
| if (url != null) { |
| ContextCarrier contextCarrier = new ContextCarrier(); |
| String remotePeer = url.getHost() + ":" + url.getPort(); |
| AbstractSpan span = ContextManager.createExitSpan(generateOperationName(url, request), contextCarrier, remotePeer); |
| span.setComponent(ComponentsDefine.MOTAN); |
| Tags.URL.set(span, url.getIdentity()); |
| SpanLayer.asRPCFramework(span); |
| CarrierItem next = contextCarrier.items(); |
| while (next.hasNext()) { |
| next = next.next(); |
| request.setAttachment(next.getHeadKey(), next.getHeadValue()); |
| } |
| } |
| } |
| |
| @Override |
| public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, |
| Object ret) throws Throwable { |
| Response response = (Response) ret; |
| if (response != null && response.getException() != null) { |
| AbstractSpan span = ContextManager.activeSpan(); |
| span.log(response.getException()); |
| } |
| ContextManager.stopSpan(); |
| return ret; |
| } |
| |
| @Override |
| public void handleMethodException(EnhancedInstance objInst, Method method, Object[] allArguments, |
| Class<?>[] argumentsTypes, Throwable t) { |
| AbstractSpan span = ContextManager.activeSpan(); |
| span.log(t); |
| } |
| |
| /** |
| * Generate operation name. |
| * |
| * @return operation name. |
| */ |
| private static String generateOperationName(URL serviceURI, Request request) { |
| return new StringBuilder(serviceURI.getPath()).append(".") |
| .append(request.getMethodName()) |
| .append("(") |
| .append(request.getParamtersDesc()) |
| .append(")") |
| .toString(); |
| } |
| } |