Dubbo link tracing- show "group" attribute value in OperationName (#6159)

CHANGES.md

@@ -27,6 +27,7 @@ Release Notes.
 * Add Dolphinscheduler plugin definition.
 * Make sampling still works when the trace ignores plug-in activation.
 * Fix mssql-plugin occur ClassCastException when call the method of return generate key.
+* The operation name of dubbo and dubbo-2.7.x-plugin, has been changed as the `groupValue/className.methodName` format
 * Fix bug that rocketmq-plugin set the wrong tag.
 
 #### OAP-Backend

apm-sniffer/apm-sdk-plugin/dubbo-2.7.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/asf/dubbo/DubboInterceptor.java

@@ -18,6 +18,7 @@
 
 package org.apache.skywalking.apm.plugin.asf.dubbo;
 
+import org.apache.dubbo.common.Constants;
 import org.apache.dubbo.common.URL;
 import org.apache.dubbo.rpc.Invocation;
 import org.apache.dubbo.rpc.Invoker;
@@ -33,6 +34,7 @@ import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedI
 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 java.lang.reflect.Method;
 
@@ -136,6 +138,9 @@ public class DubboInterceptor implements InstanceMethodsAroundInterceptor {
      */
     private String generateOperationName(URL requestURL, Invocation invocation) {
         StringBuilder operationName = new StringBuilder();
+        String groupStr = requestURL.getParameter(Constants.GROUP_KEY);
+        groupStr = StringUtil.isEmpty(groupStr) ? "" : groupStr + "/";
+        operationName.append(groupStr);
         operationName.append(requestURL.getPath());
         operationName.append("." + invocation.getMethodName() + "(");
         for (Class<?> classes : invocation.getParameterTypes()) {

apm-sniffer/apm-sdk-plugin/dubbo-plugin/src/main/java/org/apache/skywalking/apm/plugin/dubbo/DubboInterceptor.java

@@ -18,6 +18,7 @@
 
 package org.apache.skywalking.apm.plugin.dubbo;
 
+import com.alibaba.dubbo.common.Constants;
 import com.alibaba.dubbo.common.URL;
 import com.alibaba.dubbo.rpc.Invocation;
 import com.alibaba.dubbo.rpc.Invoker;
@@ -34,6 +35,7 @@ import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedI
 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;
 
 /**
  * {@link DubboInterceptor} define how to enhance class {@link com.alibaba.dubbo.monitor.support.MonitorFilter#invoke(Invoker,
@@ -123,6 +125,9 @@ public class DubboInterceptor implements InstanceMethodsAroundInterceptor {
      */
     private String generateOperationName(URL requestURL, Invocation invocation) {
         StringBuilder operationName = new StringBuilder();
+        String groupStr = requestURL.getParameter(Constants.GROUP_KEY);
+        groupStr = StringUtil.isEmpty(groupStr) ? "" : groupStr + "/";
+        operationName.append(groupStr);
         operationName.append(requestURL.getPath());
         operationName.append("." + invocation.getMethodName() + "(");
         for (Class<?> classes : invocation.getParameterTypes()) {