| /** |
| * 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.BackgroundCallback; |
| import org.apache.curator.framework.api.CuratorEvent; |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.zookeeper.KeeperException; |
| import java.util.concurrent.Executor; |
| |
| class Backgrounding |
| { |
| private final boolean inBackground; |
| private final Object context; |
| private final BackgroundCallback callback; |
| |
| Backgrounding(Object context) |
| { |
| this.inBackground = true; |
| this.context = context; |
| this.callback = null; |
| } |
| |
| Backgrounding(BackgroundCallback callback) |
| { |
| this.inBackground = true; |
| this.context = null; |
| this.callback = callback; |
| } |
| |
| Backgrounding(boolean inBackground) |
| { |
| this.inBackground = inBackground; |
| this.context = null; |
| this.callback = null; |
| } |
| |
| Backgrounding(BackgroundCallback callback, Object context) |
| { |
| this.inBackground = true; |
| this.context = context; |
| this.callback = callback; |
| } |
| |
| Backgrounding(CuratorFrameworkImpl client, BackgroundCallback callback, Object context, Executor executor) |
| { |
| this(wrapCallback(client, callback, executor), context); |
| } |
| |
| Backgrounding(CuratorFrameworkImpl client, BackgroundCallback callback, Executor executor) |
| { |
| this(wrapCallback(client, callback, executor)); |
| } |
| |
| Backgrounding() |
| { |
| inBackground = false; |
| context = null; |
| this.callback = null; |
| } |
| |
| boolean inBackground() |
| { |
| return inBackground; |
| } |
| |
| Object getContext() |
| { |
| return context; |
| } |
| |
| BackgroundCallback getCallback() |
| { |
| return callback; |
| } |
| |
| private static BackgroundCallback wrapCallback(final CuratorFrameworkImpl client, final BackgroundCallback callback, final Executor executor) |
| { |
| return new BackgroundCallback() |
| { |
| @Override |
| public void processResult(CuratorFramework dummy, final CuratorEvent event) throws Exception |
| { |
| executor.execute |
| ( |
| new Runnable() |
| { |
| @Override |
| public void run() |
| { |
| try |
| { |
| callback.processResult(client, event); |
| } |
| catch ( Exception e ) |
| { |
| if ( e instanceof KeeperException ) |
| { |
| client.validateConnection(client.codeToState(((KeeperException)e).code())); |
| } |
| client.logError("Background operation result handling threw exception", e); |
| } |
| } |
| } |
| ); |
| } |
| }; |
| } |
| } |