/* * (C) Copyright 2015-2016 the original author or authors. * * 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. * * Contributors: * [email protected] (夜色) */ package com.mpush.zk; import com.google.common.base.Strings; import com.mpush.api.srd.CommonServiceNode; import com.mpush.api.srd.ServiceListener; import com.mpush.tools.Jsons; import com.mpush.tools.log.Logs; import org.apache.curator.framework.CuratorFramework; import org.apache.curator.framework.recipes.cache.ChildData; import org.apache.curator.framework.recipes.cache.TreeCacheEvent; import org.apache.curator.framework.recipes.cache.TreeCacheListener; /** * Created by ohun on 2016/12/28. * * @author [email protected] (夜色) */ public final class ZKCacheListener implements TreeCacheListener { private final String watchPath; private final ServiceListener listener; public ZKCacheListener(String watchPath, ServiceListener listener) { this.watchPath = watchPath; this.listener = listener; } @Override public void childEvent(CuratorFramework curator, TreeCacheEvent event) throws Exception { ChildData data = event.getData(); if (data == null) return; String dataPath = data.getPath(); if (Strings.isNullOrEmpty(dataPath)) return; if (dataPath.startsWith(watchPath)) { switch (event.getType()) { case NODE_ADDED: listener.onServiceAdded(dataPath, Jsons.fromJson(data.getData(), CommonServiceNode.class)); break; case NODE_REMOVED: listener.onServiceRemoved(dataPath, Jsons.fromJson(data.getData(), CommonServiceNode.class)); break; case NODE_UPDATED: listener.onServiceUpdated(dataPath, Jsons.fromJson(data.getData(), CommonServiceNode.class)); break; } Logs.RSD.info("ZK node data change={}, nodePath={}, watchPath={}, ns={}"); } } }