[incubator-dubbo] branch 3.x-dev updated: [Feature] add AppendParametersComponent (#3583)

[jefflv]

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jefflv pushed a commit to branch 3.x-dev
in repository https://gitbox.apache.org/repos/asf/incubator-dubbo.git


The following commit(s) were added to refs/heads/3.x-dev by this push:
     new bef8f6d  [Feature] add AppendParametersComponent (#3583)
bef8f6d is described below

commit bef8f6d9013c9f086327939e0c39fe102f47dfbd
Author: qinliujie <qinliujieyang...@gmail.com>
AuthorDate: Fri Mar 1 17:52:46 2019 +0800

    [Feature] add AppendParametersComponent (#3583)
    
    * feature:add AppendParametersComponent to dynamically add some parameters 
/ check config
    
    * feature:add AppendParametersComponent to dynamically add some parameters 
/ check config
---
 .../dubbo/config/AppendParametersComponent.java    | 34 ++++++++++++++++++++++
 .../org/apache/dubbo/config/ReferenceConfig.java   |  7 +++++
 .../org/apache/dubbo/config/ServiceConfig.java     |  7 +++++
 3 files changed, 48 insertions(+)

diff --git 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AppendParametersComponent.java
 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AppendParametersComponent.java
new file mode 100644
index 0000000..01de9bc
--- /dev/null
+++ 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AppendParametersComponent.java
@@ -0,0 +1,34 @@
+/*
+ * 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;
+
+/**
+ * Dynamically add some parameters / check config
+ */
+
+@SPI
+public interface AppendParametersComponent {
+    default void appendReferParameters(ReferenceConfig referenceConfig) {
+
+    }
+
+    default void appendExportParameters(ServiceConfig serviceConfig) {
+
+    }
+}
diff --git 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
index 4d89a4a..4e1d467 100644
--- 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
+++ 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
@@ -214,6 +214,13 @@ public class ReferenceConfig<T> extends 
AbstractReferenceConfig {
         resolveFile();
         checkApplication();
         checkMetadataReport();
+        appendParameters();
+    }
+
+    private void appendParameters() {
+        URL appendParametersUrl = URL.valueOf("appendParameters://");
+        List<AppendParametersComponent> appendParametersComponents = 
ExtensionLoader.getExtensionLoader(AppendParametersComponent.class).getActivateExtension(appendParametersUrl,
 (String[]) null);
+        appendParametersComponents.forEach(component -> 
component.appendReferParameters(this));
     }
 
     public synchronized T get() {
diff --git 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java
 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java
index c02e745..c2bd430 100644
--- 
a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java
+++ 
b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java
@@ -322,6 +322,13 @@ public class ServiceConfig<T> extends 
AbstractServiceConfig {
         }
         checkStubAndLocal(interfaceClass);
         checkMock(interfaceClass);
+        appendParameters();
+    }
+
+    private void appendParameters() {
+        URL appendParametersUrl = URL.valueOf("appendParameters://");
+        List<AppendParametersComponent> appendParametersComponents = 
ExtensionLoader.getExtensionLoader(AppendParametersComponent.class).getActivateExtension(appendParametersUrl,
 (String[]) null);
+        appendParametersComponents.forEach(component -> 
component.appendExportParameters(this));
     }
 
     public synchronized void export() {