/*
 * aTunes
 * Copyright (C) Alex Aranda, Sylvain Gaudard and contributors
 *
 * See http://www.atunes.org/wiki/index.php?title=Contributing for information about contributors
 *
 * http://www.atunes.org
 * http://sourceforge.net/projects/atunes
 *
 * 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.
 */

package net.sourceforge.atunes.kernel.modules.podcast;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import net.sourceforge.atunes.kernel.AbstractStateRetrieveTask;
import net.sourceforge.atunes.model.IBeanFactory;
import net.sourceforge.atunes.model.INavigationHandler;
import net.sourceforge.atunes.model.INavigationView;
import net.sourceforge.atunes.model.IPodcastFeed;
import net.sourceforge.atunes.model.IStateService;

/**
 * Reads podcasts
 * 
 * @author alex
 * 
 */
public class PodcastsInitializationTask extends AbstractStateRetrieveTask {

	private List<IPodcastFeed> podcastFeeds;

	@Override
	public void retrieveData(final IStateService stateService,
			final IBeanFactory beanFactory) {
		this.podcastFeeds = stateService.retrievePodcastFeedCache();
	}

	@Override
	public void setData(final IBeanFactory beanFactory) {
		/*
		 * java.util.concurrent.CopyOnWriteArrayList instead of e.g.
		 * java.util.ArrayList to avoid ConcurrentModificationException
		 */
		beanFactory.getBean(PodcastFeedHandler.class).setPodcastFeeds(
				this.podcastFeeds != null ? this.podcastFeeds
						: new CopyOnWriteArrayList<IPodcastFeed>());
		beanFactory.getBean(INavigationHandler.class).refreshView(
				beanFactory.getBean("podcastNavigationView",
						INavigationView.class));
	}
}
