deal with response code

apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/okhttp/v3/OnResponseInterceptor.java

@@ -0,0 +1,55 @@
+/*
+ * 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.v3;
+
+import java.lang.reflect.Method;
+import okhttp3.Response;
+import org.apache.skywalking.apm.agent.core.context.ContextManager;
+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;
+
+/**
+ * {@link OnResponseInterceptor} validate the response code if it is great equal than 400. if so. the transaction status
+ * chang to `error`, or do nothing.
+ *
+ * @author zhangxin
+ */
+public class OnResponseInterceptor implements InstanceMethodsAroundInterceptor {
+    @Override
+    public void beforeMethod(EnhancedInstance objInst, Method method, Object[] allArguments, Class<?>[] argumentsTypes,
+        MethodInterceptResult result) throws Throwable {
+        Response response = (Response)allArguments[1];
+
+        if (response.code() >= 400) {
+            ContextManager.activeSpan().errorOccurred();
+        }
+    }
+
+    @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) {
+        ContextManager.activeSpan().errorOccurred().log(t);
+    }
+}

apm-sniffer/apm-sdk-plugin/okhttp-3.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/okhttp/v3/define/CallbackInstrumentation.java

@@ -44,6 +44,19 @@ public class CallbackInstrumentation extends ClassInstanceMethodsEnhancePluginDe
                     return "org.apache.skywalking.apm.plugin.okhttp.v3.OnFailureInterceptor";
                 }
 
+                @Override public boolean isOverrideArgs() {
+                    return false;
+                }
+            },
+            new InstanceMethodsInterceptPoint() {
+                @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
+                    return named("onResponse");
+                }
+
+                @Override public String getMethodsInterceptor() {
+                    return "org.apache.skywalking.apm.plugin.okhttp.v3.OnResponseInterceptor";
+                }
+
                 @Override public boolean isOverrideArgs() {
                     return false;
                 }