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      1 /*
      2  * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/tsccm/WaitingThreadAborter.java $
      3  * $Revision: 649220 $
      4  * $Date: 2008-04-17 11:40:24 -0700 (Thu, 17 Apr 2008) $
      5  *
      6  * ====================================================================
      7  *
      8  *  Licensed to the Apache Software Foundation (ASF) under one or more
      9  *  contributor license agreements.  See the NOTICE file distributed with
     10  *  this work for additional information regarding copyright ownership.
     11  *  The ASF licenses this file to You under the Apache License, Version 2.0
     12  *  (the "License"); you may not use this file except in compliance with
     13  *  the License.  You may obtain a copy of the License at
     14  *
     15  *      http://www.apache.org/licenses/LICENSE-2.0
     16  *
     17  *  Unless required by applicable law or agreed to in writing, software
     18  *  distributed under the License is distributed on an "AS IS" BASIS,
     19  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     20  *  See the License for the specific language governing permissions and
     21  *  limitations under the License.
     22  * ====================================================================
     23  *
     24  * This software consists of voluntary contributions made by many
     25  * individuals on behalf of the Apache Software Foundation.  For more
     26  * information on the Apache Software Foundation, please see
     27  * <http://www.apache.org/>.
     28  *
     29  */
     30 
     31 package org.apache.http.impl.conn.tsccm;
     32 
     33 /** A simple class that can interrupt a {@link WaitingThread}. */
     34 public class WaitingThreadAborter {
     35 
     36     private WaitingThread waitingThread;
     37     private boolean aborted;
     38 
     39     /**
     40      * If a waiting thread has been set, interrupts it.
     41      */
     42     public void abort() {
     43         aborted = true;
     44 
     45         if (waitingThread != null)
     46             waitingThread.interrupt();
     47 
     48     }
     49 
     50     /**
     51      * Sets the waiting thread.  If this has already been aborted,
     52      * the waiting thread is immediately interrupted.
     53      *
     54      * @param waitingThread The thread to interrupt when aborting.
     55      */
     56     public void setWaitingThread(WaitingThread waitingThread) {
     57         this.waitingThread = waitingThread;
     58         if (aborted)
     59             waitingThread.interrupt();
     60     }
     61 
     62 }
     63