001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2012 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.client.messaging.channel;
022    
023    import java.util.concurrent.ExecutionException;
024    import java.util.concurrent.TimeoutException;
025    
026    import org.granite.client.messaging.messages.ResponseMessage;
027    
028    /**
029     * @author Franck WOLFF
030     */
031    public class ImmediateFailureResponseMessageFuture implements ResponseMessageFuture {
032    
033            private final Exception cause;
034            
035            public ImmediateFailureResponseMessageFuture(Exception cause) {
036                    if (cause == null)
037                            throw new NullPointerException("cause cannot be null");
038                    this.cause = cause;
039            }
040    
041            @Override
042            public boolean cancel() {
043                    return false;
044            }
045    
046            @Override
047            public ResponseMessage get() throws InterruptedException, ExecutionException, TimeoutException {
048                    throw new ExecutionException(cause);
049            }
050    
051            @Override
052            public boolean isCancelled() {
053                    return false;
054            }
055    
056            @Override
057            public boolean isDone() {
058                    return true;
059            }
060    }