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/***************************************************************************
* Copyright (c) 2004, 2005, 2006 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.signal;
import org.eclipse.net4j.transport.Channel;
import org.eclipse.net4j.util.stream.BufferInputStream;
import org.eclipse.net4j.util.stream.BufferOutputStream;
import org.eclipse.net4j.util.stream.ExtendedDataInputStream;
import org.eclipse.net4j.util.stream.ExtendedDataOutputStream;
import java.io.IOException;
/**
* @author Eike Stepper
*/
public abstract class RequestWithConfirmation<RESULT> extends SignalActor<RESULT>
{
protected RequestWithConfirmation(Channel channel)
{
super(channel);
}
@Override
protected final void execute(BufferInputStream in, BufferOutputStream out) throws Exception
{
System.out.println("================ Requesting " + this);
requesting(new ExtendedDataOutputStream(out));
out.flush();
System.out.println("================ Confirming " + this);
setResult(confirming(new ExtendedDataInputStream(in)));
}
protected abstract void requesting(ExtendedDataOutputStream out) throws IOException;
protected abstract RESULT confirming(ExtendedDataInputStream in) throws IOException;
}
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