AbstractJobListener.java

/**
 * Copyright 2016 vip.com.
 * <p>
 * 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.
 * </p>
 */

package com.vip.saturn.job.internal.listener;

import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.recipes.cache.TreeCacheEvent;
import org.apache.curator.framework.recipes.cache.TreeCacheListener;

/**
 * 作业注册中心的监听器.
 * 
 * 
 */
public abstract class AbstractJobListener implements TreeCacheListener {
    
    @Override
    public final void childEvent(final CuratorFramework client, final TreeCacheEvent event) throws Exception {
        String path = null == event.getData() ? "" : event.getData().getPath();
        if (path.isEmpty()) {
            return;
        }
        dataChanged(client, event, path);
    }
    
    protected abstract void dataChanged(final CuratorFramework client, final TreeCacheEvent event, final String path);
}