/*
* org.openmicroscopy.shoola.agents.treeviewer.MoveDataLoader
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2012 University of Dundee & Open Microscopy Environment.
* 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.treeviewer;
//Java imports
import java.util.Collection;
//Third-party libraries
//Application-internal dependencies
import org.openmicroscopy.shoola.agents.treeviewer.browser.Browser;
import org.openmicroscopy.shoola.agents.treeviewer.util.MoveGroupSelectionDialog;
import org.openmicroscopy.shoola.agents.treeviewer.view.TreeViewer;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;
/**
* Loads the data for the specified user.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @since Beta4.4
*/
public class MoveDataLoader
extends DataTreeViewerLoader
{
/** The dialog where to add the loaded data.*/
private MoveGroupSelectionDialog dialog;
/** Handle to the asynchronous call so that we can cancel it. */
private CallHandle handle;
/** The type.*/
private Class type;
/** The identifier of the user.*/
private long userID;
/**
* Creates a new instance.
*
* @param viewer Reference to the Model. Mustn't be <code>null</code>.
* @param ctx The security context.
* @param type The root node type.
* @param dialog The component where to display the result.
* @param userID The id of the user to move the data to.
*/
public MoveDataLoader(TreeViewer viewer, SecurityContext ctx,
Class type, MoveGroupSelectionDialog dialog, long userID)
{
super(viewer, ctx);
if (dialog == null)
throw new IllegalArgumentException("No dialog set.");
this.dialog = dialog;
this.type = type;
this.userID = userID;
}
/**
* Retrieves the data.
* @see DataTreeViewerLoader#load()
*/
public void load()
{
handle = dmView.loadContainerHierarchy(ctx, type, null, false, userID,
this);
}
/**
* Cancels the data loading.
* @see DataTreeViewerLoader#cancel()
*/
public void cancel() { handle.cancel(); }
/**
* Feeds the result back to the viewer.
* @see DataTreeViewerLoader#handleResult(Object)
*/
public void handleResult(Object result)
{
if (viewer.getState() == Browser.DISCARDED) return; //Async cancel.
if (dialog.getStatus() != MoveGroupSelectionDialog.CANCEL)
dialog.setTargets((Collection) result);
}
}