/*
* org.openmicroscopy.shoola.agents.metadata.RenderingControlShutDown
*
*------------------------------------------------------------------------------
* 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.metadata;
import org.openmicroscopy.shoola.env.config.Registry;
import org.openmicroscopy.shoola.env.data.events.DSCallAdapter;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;
import org.openmicroscopy.shoola.env.data.views.ImageDataView;
import omero.log.LogMessage;
/**
* Shuts down the rendering control.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @since Beta4.4
*/
public class RenderingControlShutDown
extends DSCallAdapter
{
/** Convenience reference for subclasses. */
private final Registry registry;
/** Convenience reference for subclasses. */
private final ImageDataView imView;
/** The ID of the pixels set. */
private long pixelsID;
/** Handle to the asynchronous call so that we can cancel it. */
private CallHandle handle;
/** The security context.*/
private SecurityContext ctx;
/**
* Creates a new instance.
*
* @param ctx The security context.
* @param pixelsID The id of the pixels set.
*/
public RenderingControlShutDown(SecurityContext ctx, long pixelsID)
{
this.pixelsID = pixelsID;
this.ctx = ctx;
registry = MetadataViewerAgent.getRegistry();
imView = (ImageDataView)
registry.getDataServicesView(ImageDataView.class);
}
/**
* Retrieves the rendering control proxy for the selected pixels set.
* @see EditorLoader#load()
*/
public void load()
{
handle = imView.shutDownRenderingControl(ctx, pixelsID, this);
}
/**
* Cancels the ongoing data retrieval.
* @see EditorLoader#cancel()
*/
public void cancel() { handle.cancel(); }
/**
* Logs the error
* @see DSCallAdapter#handleException(Throwable)
*/
public void handleException(Throwable exc)
{
String s = "Problem closing rendering engine: ";
LogMessage log = new LogMessage();
log.print(s);
log.print(exc);
registry.getLogger().error(this, log);
}
}