| /** |
| * 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.curator.framework.imps; |
| |
| import org.apache.curator.framework.api.CuratorWatcher; |
| import org.apache.zookeeper.WatchedEvent; |
| import org.apache.zookeeper.Watcher; |
| import java.io.Closeable; |
| |
| class NamespaceWatcher implements Watcher, Closeable |
| { |
| private volatile CuratorFrameworkImpl client; |
| private volatile Watcher actualWatcher; |
| private volatile CuratorWatcher curatorWatcher; |
| |
| NamespaceWatcher(CuratorFrameworkImpl client, Watcher actualWatcher) |
| { |
| this.client = client; |
| this.actualWatcher = actualWatcher; |
| this.curatorWatcher = null; |
| } |
| |
| NamespaceWatcher(CuratorFrameworkImpl client, CuratorWatcher curatorWatcher) |
| { |
| this.client = client; |
| this.actualWatcher = null; |
| this.curatorWatcher = curatorWatcher; |
| } |
| |
| @Override |
| public void close() |
| { |
| client = null; |
| actualWatcher = null; |
| curatorWatcher = null; |
| } |
| |
| @Override |
| public void process(WatchedEvent event) |
| { |
| if ( client != null ) |
| { |
| if ( actualWatcher != null ) |
| { |
| actualWatcher.process(new NamespaceWatchedEvent(client, event)); |
| } |
| else if ( curatorWatcher != null ) |
| { |
| try |
| { |
| curatorWatcher.process(new NamespaceWatchedEvent(client, event)); |
| } |
| catch ( Exception e ) |
| { |
| client.logError("Watcher exception", e); |
| } |
| } |
| } |
| } |
| } |