/*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2008 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.agents.fsimporter;
import java.io.File;
import org.openmicroscopy.shoola.agents.fsimporter.view.Importer;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;
import omero.gateway.model.DataObject;
/**
* Loads a directory.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author Donald MacDonald
* <a href="mailto:donald@lifesci.dundee.ac.uk">donald@lifesci.dundee.ac.uk</a>
* @version 3.0
* @since 3.0-Beta4
*/
public class DirectoryMonitor
extends DataImporterLoader
{
/** Handle to the asynchronous call so that we can cancel it. */
private CallHandle handle;
/** The directory to monitor. */
private File directory;
/** The container where to import the images into. */
private DataObject container;
/**
* Creates a new instance.
*
* @param viewer The Importer this data loader is for.
* Mustn't be <code>null</code>.
* @param ctx The security context.
* @param directory The directory to monitor.
* @param container The container where to import the image to.
*/
public DirectoryMonitor(Importer viewer, SecurityContext ctx,
File directory, DataObject container)
{
super(viewer, ctx);
if (directory == null)
throw new IllegalArgumentException("No directory to monitor.");
this.directory = directory;
this.container = container;
}
/**
* Monitors the directory.
* @see DataImporterLoader#load()
*/
public void load()
{
handle = ivView.monitorDirectory(ctx, directory, container,
getCurrentUserID(), -1, this);
}
/**
* Cancels the import.
* @see DataImporterLoader#load()
*/
public void cancel() { handle.cancel(); }
/**
* Feeds the result back to the viewer.
* @see DataImporterLoader#handleResult(Object)
*/
public void handleResult(Object result)
{
if (viewer.getState() == Importer.DISCARDED) return; //Async cancel.
}
}