/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2006-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 */
package org.geotools.gce.imagepyramid;

import java.awt.RenderingHints;
import java.util.Collections;
import java.util.Map;

import org.geotools.coverage.grid.io.GridFormatFactorySpi;
import org.opengis.coverage.grid.Format;

/**
 * Implementation of the GridCoverageFormat service provider interface for arc
 * grid files.
 * 
 * @author Simone Giannecchini (simboss)
 * @since 2.3
 *
 * @source $URL$
 */
public final class ImagePyramidFormatFactory implements GridFormatFactorySpi {
	/**
	 * Tells us if this plugin is avaialble or not. Since usually coverage
	 * plugins depend on JAI and ImageIO classes this method is suitable for
	 * understanding if such a plugin is available or not, preventing users from
	 * having problems later on when trying to instantiate it.
	 * 
	 * @return False if this plugin is not availaible true otherwise.
	 */
	public boolean isAvailable() {
		boolean available = true;

		// it needs ImageMosaic and other things inside it
		try {
			Class.forName("org.geotools.gce.imagemosaic.ImageMosaicReader");
		} catch (ClassNotFoundException cnf) {
			available = false;
		}

		return available;
	}

	/**
	 * Creates a new {@link ImagePyramidFormat}.
	 * @return an OpenGIS {@link Format} subclass for this coverage.
	 */
	public ImagePyramidFormat createFormat() {
		return new ImagePyramidFormat();
	}

	/**
	 * Returns the implementation hints. The default implementation returns en
	 * empty map.
	 * 
	 * @return an empty map.
	 */
	public Map<RenderingHints.Key, ?> getImplementationHints() {
		return Collections.emptyMap();
	}
}