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JXMapViewer JavaFX implementation

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/**
 * Copyright (C) 2008-2012 AgroSense Foundation.
 *
 * AgroSense 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 3 of the License, or
 * (at your option) any later version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense 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 AgroSense.  If not, see .
 */
package eu.limetri.client.mapviewer.fx.impl;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javafx.scene.image.Image;

import org.openide.util.Lookup;

import eu.limetri.client.mapviewer.data.cache.TileRepository;
import eu.limetri.client.mapviewer.data.cache.TileService;
import eu.limetri.client.mapviewer.data.cache.WritableTileService;

/**
 * JavaFX implementation of {@link TileRepository}
 * 
 * @author Frantisek Post
 */
public class TileRepositoryFX extends TileRepository {

	private static final TileRepositoryFX instance = new TileRepositoryFX();

	private static DefaultTileServiceFX service;
	
	private TileRepositoryFX() {
	}
	
	/**
	 * Returns instance
	 * @return
	 */
	public static TileRepository getInstance() {
		return instance;
	}

	
	@SuppressWarnings("rawtypes")
	protected List findImplementations() {
		Collection caches = Lookup.getDefault().lookupAll(TileServiceFX.class);
		List list = new ArrayList();
		list.add(getService()); //default first
		list.addAll(caches);
		return list;
	}

	protected WritableTileService findWritableImplementation() {
		WritableTileServiceFX customWritableTileService = Lookup.getDefault().lookup(WritableTileServiceFX.class);
		if (customWritableTileService != null) {
			return customWritableTileService;
		} else {
			return getService();
		}
	}

	private DefaultTileServiceFX getService() {
		if (service == null) {
			service = new DefaultTileServiceFX();
		}
		return service;
	}
	
}