CategoryFactory.java

/*******************************************************************************
 * Copyright (c) 2012, 2013 Wind River Systems, Inc. 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.tcf.te.ui.views.internal.categories;

import java.util.concurrent.atomic.AtomicReference;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.swt.widgets.Display;
import org.eclipse.tcf.te.ui.views.extensions.CategoriesExtensionPointManager;
import org.eclipse.tcf.te.ui.views.interfaces.ICategory;
import org.eclipse.ui.IElementFactory;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.PlatformUI;
/**
 * The element factory for a category.
 */
public class CategoryFactory implements IElementFactory {
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.IElementFactory#createElement(org.eclipse.ui.IMemento)
	 */
	@Override
	public IAdaptable createElement(final IMemento memento) {
		final AtomicReference<ICategory> category = new AtomicReference<ICategory>();

		Runnable runnable = new Runnable() {
			@Override
			public void run() {
				String id = memento.getString("id"); //$NON-NLS-1$
				category.set(CategoriesExtensionPointManager.getInstance().getCategory(id, false));
			}
		};

		if (Display.findDisplay(Thread.currentThread()) == null) {
			PlatformUI.getWorkbench().getDisplay().syncExec(runnable);
		} else {
			runnable.run();
		}

		return category.get() instanceof IAdaptable ? (IAdaptable)category.get() : null;
	}
}