fix: For idl stub service, use idl service name for discovery (#15365)

Author: lqscript

dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java

@@ -349,20 +349,21 @@ protected void init(boolean check) {
                 initServiceMetadata(consumer);
 
                 serviceMetadata.setServiceType(getServiceInterfaceClass());
-                // TODO, uncomment this line once service key is unified
-                serviceMetadata.generateServiceKey();
-
-                Map<String, String> referenceParameters = appendConfig();
 
                 ModuleServiceRepository repository = getScopeModel().getServiceRepository();
                 ServiceDescriptor serviceDescriptor;
                 if (CommonConstants.NATIVE_STUB.equals(getProxy())) {
                     serviceDescriptor = StubSuppliers.getServiceDescriptor(interfaceName);
                     repository.registerService(serviceDescriptor);
                     setInterface(serviceDescriptor.getInterfaceName());
+                    serviceMetadata.setServiceInterfaceName(serviceDescriptor.getInterfaceName());
                 } else {
                     serviceDescriptor = repository.registerService(interfaceClass);
                 }
+                serviceMetadata.generateServiceKey();
+
+                Map<String, String> referenceParameters = appendConfig();
+
                 consumerModel = new ConsumerModel(
                         serviceMetadata.getServiceKey(),
                         proxy,

dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java

@@ -49,12 +49,14 @@
 import org.apache.dubbo.rpc.RpcInvocation;
 import org.apache.dubbo.rpc.ServerService;
 import org.apache.dubbo.rpc.cluster.ConfiguratorFactory;
+import org.apache.dubbo.rpc.model.DubboStub;
 import org.apache.dubbo.rpc.model.ModuleModel;
 import org.apache.dubbo.rpc.model.ModuleServiceRepository;
 import org.apache.dubbo.rpc.model.ProviderModel;
 import org.apache.dubbo.rpc.model.ScopeModel;
 import org.apache.dubbo.rpc.model.ServiceDescriptor;
 import org.apache.dubbo.rpc.service.GenericService;
+import org.apache.dubbo.rpc.stub.StubSuppliers;
 
 import java.beans.Transient;
 import java.lang.reflect.Method;
@@ -303,6 +305,11 @@ public void init() {
         initServiceMetadata(provider);
         serviceMetadata.setServiceType(getInterfaceClass());
         serviceMetadata.setTarget(getRef());
+        if (DubboStub.class.isAssignableFrom(getInterfaceClass())) {
+            ServiceDescriptor serviceDescriptor = StubSuppliers.getServiceDescriptor(interfaceName);
+            setInterface(serviceDescriptor.getInterfaceName());
+            serviceMetadata.setServiceInterfaceName(serviceDescriptor.getInterfaceName());
+        }
         serviceMetadata.generateServiceKey();
     }