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* Copyright (C) 2006-2008 University of Dundee. All rights reserved.
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* This program is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
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package org.openmicroscopy.shoola.agents.metadata;
import org.openmicroscopy.shoola.agents.metadata.editor.Editor;
import org.openmicroscopy.shoola.env.data.model.DiskQuota;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;
import omero.gateway.model.ExperimenterData;
import omero.gateway.model.GroupData;
/**
* Loads the space used and the space available on the server for the
* specified user.
*
* @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 OME3.0
*/
public class DiskSpaceLoader
extends EditorLoader
{
/** Handle to the asynchronous call so that we can cancel it. */
private CallHandle handle;
/** The id of the user or group. */
private long id;
/** Either <code>ExperimenterData</code> or <code>GroupData</code>. */
private Class type;
/**
* Creates a new instance.
*
* @param viewer Reference to the viewer. Mustn't be <code>null</code>.
* @param ctx The security context.
* @param type Either <code>ExperimenterData</code> or
* <code>GroupData</code>.
* @param id The identifier of the user or the group.
*/
public DiskSpaceLoader(Editor viewer, SecurityContext ctx, Class type,
long id)
{
super(viewer, ctx);
if (!(ExperimenterData.class.equals(type) ||
GroupData.class.equals(type)))
throw new IllegalArgumentException("Type can only by " +
"ExperimenterData or GroupData.");
this.id = id;
this.type = type;
}
/**
* Loads the used and free space.
* @see EditorLoader#load()
*/
public void load()
{
handle = adminView.getDiskSpace(ctx, type, id, this);
}
/**
* Cancels the data loading.
* @see EditorLoader#cancel()
*/
public void cancel() { handle.cancel(); }
/**
* Feeds the result back to the viewer.
* @see EditorLoader#handleResult(Object)
*/
public void handleResult(Object result)
{
viewer.setDiskSpace((DiskQuota) result);
}
}