| /* |
| * 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.okhttp.common; |
| |
| import okhttp3.Headers; |
| import okhttp3.HttpUrl; |
| import okhttp3.Request; |
| import okhttp3.Response; |
| 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.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; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| |
| /** |
| * {@link RealCallInterceptor} intercept the synchronous http calls by the discovery of okhttp. |
| */ |
| public class RealCallInterceptor implements InstanceMethodsAroundInterceptor, InstanceConstructorInterceptor { |
| |
| private static Field FIELD_HEADERS_OF_REQUEST; |
| |
| static { |
| try { |
| final Field field = Request.class.getDeclaredField("headers"); |
| field.setAccessible(true); |
| FIELD_HEADERS_OF_REQUEST = field; |
| } catch (Exception ignore) { |
| FIELD_HEADERS_OF_REQUEST = null; |
| } |
| } |
| |
| @Override |
| public void onConstruct(EnhancedInstance objInst, Object[] allArguments) { |
| objInst.setSkyWalkingDynamicField(allArguments[1]); |
| } |
| |
| /** |
| * Get the {@link Request} from {@link EnhancedInstance}, then create {@link AbstractSpan} and set host, |
| * port, kind, component, url from {@link Request}. Through the reflection of the way, set the http header |
| * of context data into {@link Request#headers}. |
| * |
| * @param result change this result, if you want to truncate the method. |
| */ |
| @Override |
| public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, |
| MethodInterceptResult result) throws Throwable { |
| Request request = (Request) objInst.getSkyWalkingDynamicField(); |
| |
| ContextCarrier contextCarrier = new ContextCarrier(); |
| HttpUrl requestUrl = request.url(); |
| AbstractSpan span = ContextManager.createExitSpan(requestUrl.uri() |
| .getPath(), contextCarrier, requestUrl.host() + ":" + requestUrl |
| .port()); |
| span.setComponent(ComponentsDefine.OKHTTP); |
| Tags.HTTP.METHOD.set(span, request.method()); |
| Tags.URL.set(span, requestUrl.uri().toString()); |
| SpanLayer.asHttp(span); |
| |
| if (FIELD_HEADERS_OF_REQUEST != null) { |
| Headers.Builder headerBuilder = request.headers().newBuilder(); |
| CarrierItem next = contextCarrier.items(); |
| while (next.hasNext()) { |
| next = next.next(); |
| headerBuilder.set(next.getHeadKey(), next.getHeadValue()); |
| } |
| FIELD_HEADERS_OF_REQUEST.set(request, headerBuilder.build()); |
| } |
| } |
| |
| /** |
| * Get the status code from {@link Response}, when status code greater than 400, it means there was some errors in |
| * the server. Finish the {@link AbstractSpan}. |
| * |
| * @param ret the method's original return value. |
| */ |
| @Override |
| public Object afterMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes, |
| Object ret) throws Throwable { |
| Response response = (Response) ret; |
| if (response != null) { |
| int statusCode = response.code(); |
| AbstractSpan span = ContextManager.activeSpan(); |
| if (statusCode >= 400) { |
| span.errorOccurred(); |
| Tags.STATUS_CODE.set(span, Integer.toString(statusCode)); |
| } |
| } |
| |
| ContextManager.stopSpan(); |
| |
| return ret; |
| } |
| |
| @Override |
| public void handleMethodException(EnhancedInstance objInst, Method method, Object[] allArguments, |
| Class<?>[] argumentsTypes, Throwable t) { |
| AbstractSpan abstractSpan = ContextManager.activeSpan(); |
| abstractSpan.log(t); |
| } |
| } |