/*==========================================================================*\
| $Id: ResetPreviewCacheHandler.java,v 1.1 2010/05/11 15:52:46 aallowat Exp $
|*-------------------------------------------------------------------------*|
| Copyright (C) 2006-2008 Virginia Tech
|
| This file is part of Web-CAT.
|
| Web-CAT is free software; you can redistribute it and/or modify
| it under the terms of the GNU Affero General Public License as published
| by the Free Software Foundation; either version 3 of the License, or
| (at your option) any later version.
|
| Web-CAT 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 Affero General Public License
| along with Web-CAT; if not, see <http://www.gnu.org/licenses/>.
\*==========================================================================*/
package org.webcat.oda.designer.handlers;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;
import org.webcat.oda.designer.DesignerActivator;
import org.webcat.oda.designer.i18n.Messages;
import org.webcat.oda.designer.preview.PreviewingResultCache;
//------------------------------------------------------------------------
/**
* An Eclipse command handler that clears the data that has been cached for
* previewing operations.
*
* @author Tony Allevato (Virginia Tech Computer Science)
* @version $Id: ResetPreviewCacheHandler.java,v 1.1 2010/05/11 15:52:46 aallowat Exp $
*/
public class ResetPreviewCacheHandler extends AbstractHandler
{
//~ Methods ...............................................................
// ----------------------------------------------------------
public Object execute(ExecutionEvent event) throws ExecutionException
{
IWorkbenchWindow window = HandlerUtil
.getActiveWorkbenchWindowChecked(event);
PreviewingResultCache cache = DesignerActivator.getDefault()
.getPreviewCache();
if (cache != null)
{
MessageBox box = new MessageBox(window.getShell(),
SWT.ICON_QUESTION | SWT.YES | SWT.NO);
box.setMessage(Messages.RESETPREVIEWCACHE_CONFIRMATION);
box.setText(Messages.RESETPREVIEWCACHE_MSGBOX_NAME);
if (box.open() == SWT.YES)
{
cache.reset();
}
}
return null;
}
}