/*******************************************************************************
 * Copyright (c) 2007, 2009 Wind River Systems and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.dsf.ui.concurrent;

import java.util.concurrent.Executor;

import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;

/**
 * Data Request monitor that takes <code>IViewerUpdate</code> as a parent.
 * If the IViewerUpdate is canceled, this request monitor becomes canceled as well.
 * @see IViewerUpdate
 * 
 * @since 2.0
 */
public class ViewerRequestMonitor extends RequestMonitor {
    
    private final IViewerUpdate fUpdate;
    public ViewerRequestMonitor(Executor executor, IViewerUpdate update) {
        super(executor, null);
        fUpdate = update;
    }
    
    @Override
    public synchronized boolean isCanceled() { 
        return fUpdate.isCanceled() || super.isCanceled();
    }
    
    @Override
    protected void handleSuccess() {
        fUpdate.done();
    }

    @Override
    protected void handleErrorOrWarning() {
        fUpdate.setStatus(getStatus());
        fUpdate.done();
    }
    
    @Override
    protected void handleCancel() {
        fUpdate.setStatus(getStatus());
        fUpdate.done();
    }
}
