001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 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    package org.granite.client.messaging.channel;
021    
022    import java.util.concurrent.ExecutionException;
023    import java.util.concurrent.TimeoutException;
024    
025    import org.granite.client.messaging.messages.ResponseMessage;
026    
027    /**
028     * @author Franck WOLFF
029     */
030    public class ImmediateFailureResponseMessageFuture implements ResponseMessageFuture {
031    
032            private final Exception cause;
033            
034            public ImmediateFailureResponseMessageFuture(Exception cause) {
035                    if (cause == null)
036                            throw new NullPointerException("cause cannot be null");
037                    this.cause = cause;
038            }
039    
040            @Override
041            public boolean cancel() {
042                    return false;
043            }
044    
045            @Override
046            public ResponseMessage get() throws InterruptedException, ExecutionException, TimeoutException {
047                    throw new ExecutionException(cause);
048            }
049    
050            @Override
051            public boolean isCancelled() {
052                    return false;
053            }
054    
055            @Override
056            public boolean isDone() {
057                    return true;
058            }
059    }