/*
* Created on Jul 11, 2006 Copyright (C) 2001-6, Anthony Harrison anh23@pitt.edu
* (jactr.org) This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the License,
* or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have
* received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.jactr.modules.pm.visual.buffer.processor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jactr.core.buffer.IActivationBuffer;
import org.jactr.core.chunk.IChunk;
import org.jactr.core.chunktype.IChunkType;
import org.jactr.core.production.request.ChunkTypeRequest;
import org.jactr.core.production.request.IRequest;
import org.jactr.core.slot.ISlot;
import org.jactr.modules.pm.common.buffer.AbstractRequestDelegate;
import org.jactr.modules.pm.visual.IVisualModule;
import org.jactr.modules.pm.visual.buffer.IVisualActivationBuffer;
import org.jactr.modules.pm.visual.buffer.IVisualLocationBuffer;
/**
* reset the visual system - merely calls IVisualModule.reset()
*
* @author developer
*/
public class ClearRequestDelegate extends AbstractRequestDelegate
{
/**
* logger definition
*/
static public final Log LOGGER = LogFactory
.getLog(ClearRequestDelegate.class);
public ClearRequestDelegate(IChunkType clearChunkType)
{
super(clearChunkType);
/*
* if we used blocking timed events, we'd need to release the block, most
* likely from the visual module's reset event. it's easier just to do this
*/
setUseBlockingTimedEvents(false);
// we will actually clear at the end of the cycle, and not 50ms after that
// setDelayStart(false);
}
@Override
protected double computeCompletionTime(double startTime, IRequest request,
IActivationBuffer buffer)
{
return startTime;
}
@Override
protected boolean isValid(IRequest request, IActivationBuffer buffer)
throws IllegalArgumentException
{
/*
* we permit clearing when busy, so always accept
*/
return true;
}
@Override
protected Object startRequest(IRequest request, IActivationBuffer buffer,
double requestTime)
{
IVisualActivationBuffer actBuffer = (IVisualActivationBuffer) buffer;
IVisualLocationBuffer locBuffer = ((IVisualModule) actBuffer.getModule())
.getVisualLocationBuffer();
IChunk busy = buffer.getModel().getDeclarativeModule().getBusyChunk();
actBuffer.setStateChunk(busy);
actBuffer.setModalityChunk(busy);
actBuffer.setPreparationChunk(busy);
actBuffer.setProcessorChunk(busy);
actBuffer.setExecutionChunk(busy);
locBuffer.setStateChunk(busy);
locBuffer.setModalityChunk(busy);
locBuffer.setPreparationChunk(busy);
locBuffer.setProcessorChunk(busy);
locBuffer.setExecutionChunk(busy);
return null;
}
@Override
protected void finishRequest(IRequest request, IActivationBuffer buffer,
Object startValue)
{
((IVisualModule) buffer.getModule()).reset(isFullReset(request));
}
private boolean isFullReset(IRequest request)
{
ChunkTypeRequest ctr = (ChunkTypeRequest) request;
for (ISlot slot : ctr.getSlots())
if (slot.getName().equalsIgnoreCase("all")
&& slot.getValue() instanceof Boolean && (Boolean) slot.getValue())
return true;
return false;
}
}