/** * * 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.hadoop.hbase.client; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher; import java.io.IOException; /** * We inherit the current ZooKeeperWatcher implementation to change the semantic * of the close: the new close won't immediately close the connection but * will have a keep alive. See {@link HConnection}. * This allows to make it available with a consistent interface. The whole * ZooKeeperWatcher use in HConnection will be then changed to remove the * watcher part. * * This class is intended to be used internally by HBase classes; but not by * final user code. Hence it's package protected. */ class ZooKeeperKeepAliveConnection extends ZooKeeperWatcher{ ZooKeeperKeepAliveConnection( Configuration conf, String descriptor, HConnectionManager.HConnectionImplementation conn) throws IOException { super(conf, descriptor, conn); } @Override public void close() { ((HConnectionManager.HConnectionImplementation)abortable).releaseZooKeeperWatcher(this); } void internalClose(){ super.close(); } }