code: /***************************************************************************
   *   Copyright (C) 2007-2011 by Fabrizio Montesi <famontesi@gmail.com>     *
   *                                                                         *
   *   This program is free software; you can redistribute it and/or modify  *
   *   it under the terms of the GNU Library General Public License as       *
   *   published by the Free Software Foundation; either version 2 of the    *
   *   License, or (at your option) any later version.                       *
   *                                                                         *
   *   This program is distributed in the hope that it will be useful,       *
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
   *   GNU General Public License for more details.                          *
   *                                                                         *
   *   You should have received a copy of the GNU Library General Public     *
   *   License along with this program; if not, write to the                 *
   *   Free Software Foundation, Inc.,                                       *
   *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
   *                                                                         *
   *   For details about the authors of this software, see the AUTHORS file. *
   ***************************************************************************/
  
  
  package jolie.runtime;
  
  
  import jolie.runtime.typing.Type;
  
  /**
   * @author Fabrizio Montesi
   * 
   */
  public abstract class InputOperation extends AbstractIdentifiableObject
  {
  	/**
  	 * Constructor
  	 * @param id the name that identified this input operation
  	 */
  	public InputOperation( String id )
  	{
  		super( id );
  	}
  
  	public abstract Type requestType();
  
  	/**
  	 * Receives a message from CommCore and passes it to the right InputProcess.
  	 * If no suitable InputProcess is found, the message is enqueued in memory.
  	 * @param channel The channel which received the message. Useful if the operation wants to send a response.
  	 * @param message The received message.
  	 */
  	/*public synchronized void recvMessage( CommChannel channel, final CommMessage message )
  	{
  		VariablePath path = null;
  		InputProcessExecution pe = null;
  		for( Entry< InputProcessExecution, ExecutionThread > entry : procsMap.entrySet() ) {
  			pe = entry.getKey();
  			if ( pe instanceof NDChoiceProcess.Execution ) {
  				path = ((NDChoiceProcess.Execution)pe).inputVarPath( message.operationName() );
  			} else if ( pe.parent() instanceof InputOperationProcess ) {
  				path = ((InputOperationProcess)pe.parent()).inputVarPath();
  			}
  			
  			CommChannelHandler.currentThread().setExecutionThread( entry.getValue() );
  			if ( entry.getValue().checkCorrelation( path, message ) ) {
  				try {
  					if ( entry.getKey().recvMessage( channel, message ) ) {
  						procsMap.remove( entry.getKey() );
  						return;
  					}
  				} catch( TypeCheckingException e ) {
  					return;
  				}
  			}
  		}
  
  		final Pair< CommChannel, CommMessage > pair = new Pair< CommChannel, CommMessage >( channel, message );
  		mesgList.add( pair );
  		final Interpreter interpreter = Interpreter.getInstance();
  		interpreter.addTimeoutHandler( new TimeoutHandler( interpreter.inputMessageTimeout() ) {
  			@Override
  			public void onTimeout()
  			{
  				boolean removed;
  				synchronized( this ) {
  					removed = mesgList.remove( pair );
  				}
  				if ( removed && interpreter.verbose() ) {
  					interpreter.logInfo( "Message " + message.id() + " discarded for timeout" );
  				}
  			}
  		} );
  	}*/
  }