001/*
002 * The MIT License
003 * Copyright (c) 2012 Microsoft Corporation
004 *
005 * Permission is hereby granted, free of charge, to any person obtaining a copy
006 * of this software and associated documentation files (the "Software"), to deal
007 * in the Software without restriction, including without limitation the rights
008 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
009 * copies of the Software, and to permit persons to whom the Software is
010 * furnished to do so, subject to the following conditions:
011 *
012 * The above copyright notice and this permission notice shall be included in
013 * all copies or substantial portions of the Software.
014 *
015 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
016 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
017 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
018 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
019 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
020 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
021 * THE SOFTWARE.
022 */
023
024package microsoft.exchange.webservices.data.misc;
025
026import org.apache.commons.logging.Log;
027import org.apache.commons.logging.LogFactory;
028
029import java.util.concurrent.Future;
030
031public abstract class AbstractAsyncCallback implements Runnable, Callback<Object> {
032
033  private static final Log LOG = LogFactory.getLog(AbstractAsyncCallback.class);
034
035  Future<?> task;
036  static boolean callbackProcessed = false;
037
038  AbstractAsyncCallback() {
039  }
040
041  AbstractAsyncCallback(Future<?> t) {
042    this.task = t;
043  }
044
045  public void run() {
046    while (!callbackProcessed) {
047
048      if (task.isDone()) {
049        processMe(task);
050        callbackProcessed = true;
051        try {
052          Thread.sleep(1000);
053        } catch (InterruptedException e) {
054          // TODO Auto-generated catch block
055          LOG.error(e);
056        }
057        break;
058      }
059
060    }
061  }
062}