/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed 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 com.alibaba.nacos.api.config.listener;

import com.alibaba.nacos.api.config.ConfigChangeItem;

import java.io.IOException;
import java.util.Map;

/**
 * ConfigChangeParser.
 *
 * @author rushsky518
 */
public interface ConfigChangeParser {
    
    /**
     * Judge type.
     *
     * @param type data type
     * @return true if is responsible type, otherwise false
     */
    boolean isResponsibleFor(String type);
    
    /**
     * Compare old and new data.
     *
     * @param oldContent old content
     * @param newContent new content
     * @param type       data type
     * @return key and change item map
     * @throws IOException io exception
     */
    Map<String, ConfigChangeItem> doParse(String oldContent, String newContent, String type) throws IOException;
}
