support configcenter config and refactor ConfigPostProcessor (apache#…

…5579)

.gitignore

@@ -43,4 +43,4 @@ compiler/build/*
 compiler/.gradle/*
 
 # protobuf
-dubbo-serialization/dubbo-serialization-protobuf/build/*
+dubbo-serialization/dubbo-serialization-protobuf/build/*

dubbo-common/src/main/java/org/apache/dubbo/common/BaseServiceMetadata.java

@@ -55,6 +55,7 @@ public String getDisplayServiceKey() {
 
     /**
      * revert of org.apache.dubbo.common.ServiceDescriptor#getDisplayServiceKey()
+     *
      * @param displayKey
      * @return
      */

dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AppendParametersComponent.java → dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ConfigInitializer.java

@@ -23,12 +23,14 @@
  */
 
 @SPI
-public interface AppendParametersComponent {
-    default void appendReferParameters(ReferenceConfig referenceConfig) {
+public interface ConfigInitializer {
+
+    default void initReferConfig(ReferenceConfig referenceConfig) {
 
     }
 
-    default void appendExportParameters(ServiceConfig serviceConfig) {
+    default void initServiceConfig(ServiceConfig serviceConfig) {
 
     }
+
 }

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

@@ -0,0 +1,35 @@
+/*
+ * 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.dubbo.config;
+
+import org.apache.dubbo.common.extension.SPI;
+
+/**
+ * 2019/12/30
+ */
+
+@SPI
+public interface ConfigPostProcessor {
+
+    default void postProcessReferConfig(ReferenceConfig referenceConfig) {
+
+    }
+
+    default void postProcessServiceConfig(ServiceConfig serviceConfig) {
+
+    }
+}