@@ -22,5 +22,6 @@ import org.apache.commons.configuration.Configuration;
 import com.netflix.config.WatchedConfigurationSource;
 
 public interface ConfigCenterConfigurationSource extends WatchedConfigurationSource {
+  boolean isValidSource(Configuration localConfiguration);
   void init(Configuration localConfiguration);
 }
/*
 * 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
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 */

package org.apache.servicecomb.config.spi;

import org.apache.commons.configuration.Configuration;

import com.netflix.config.WatchedConfigurationSource;

public interface ConfigCenterConfigurationSource extends WatchedConfigurationSource {
  void init(Configuration localConfiguration);
}

For compatibility, this method should give default implementation. But it's fine now , this is not known implementations.