JpegJMagickImageReaderSpi.java

/*
 *    ImageI/O-Ext - OpenSource Java Image translation Library
 *    http://www.geo-solutions.it/
 *    http://java.net/projects/imageio-ext/
 *    (C) 2007 - 2009, GeoSolutions
 *
 *    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;
 *    either version 3 of the License, or (at your option) any later version.
 *
 *    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 it.geosolutions.imageio.plugins.jpeg;

import it.geosolutions.imageio.stream.input.FileImageInputStreamExt;

import java.io.File;
import java.io.IOException;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.imageio.ImageReader;
import javax.imageio.spi.ImageReaderSpi;

/**
 * Service provider interface for jpeg images
 * 
 * @author Daniele Romagnoli, GeoSolutions.
 * @author Simone Giannecchini, GeoSolutions. 
 */
public class JpegJMagickImageReaderSpi extends ImageReaderSpi {

	private static final Logger logger = Logger
			.getLogger("it.geosolutions.imageio.plugins.jpeg");

	static final String[] suffixes = { "jpg", "jpeg" };

	static final String[] formatNames = { "JPEG" };

	static final String[] MIMETypes = { "image/jpeg", "image/jpg" };

	static final String version = "1.0";

	static final String readerCN = "it.geosolutions.imageio.plugins.jpeg.JpegJMagickImageReader";

	static final String vendorName = "GeoSolutions";

	// writerSpiNames
	static final String[] wSN = {null };

	// StreamMetadataFormatNames and StreamMetadataFormatClassNames
	static final boolean supportsStandardStreamMetadataFormat = false;

	static final String nativeStreamMetadataFormatName = null;

	static final String nativeStreamMetadataFormatClassName = null;

	static final String[] extraStreamMetadataFormatNames = { null };

	static final String[] extraStreamMetadataFormatClassNames = { null };

	// ImageMetadataFormatNames and ImageMetadataFormatClassNames
	static final boolean supportsStandardImageMetadataFormat = false;

	static final String nativeImageMetadataFormatName = null;

	static final String nativeImageMetadataFormatClassName = null;

	static final String[] extraImageMetadataFormatNames = { null };

	static final String[] extraImageMetadataFormatClassNames = { null };


	public JpegJMagickImageReaderSpi() {
		super(
				vendorName,
				version,
				formatNames,
				suffixes,
				MIMETypes,
				readerCN, // readerClassName
				new Class[]{File.class,FileImageInputStreamExt.class
						},
				wSN, // writer Spi Names
				supportsStandardStreamMetadataFormat,
				nativeStreamMetadataFormatName,
				nativeStreamMetadataFormatClassName,
				extraStreamMetadataFormatNames,
				extraStreamMetadataFormatClassNames,
				supportsStandardImageMetadataFormat,
				nativeImageMetadataFormatName,
				nativeImageMetadataFormatClassName,
				extraImageMetadataFormatNames,
				extraImageMetadataFormatClassNames);

		if (logger.isLoggable(Level.FINE))
			logger.fine("JpegJMagickImageReaderSpi Constructor");
	}

	/**
	 * This method checks if the provided input can be decoded from this SPI
	 */
	public boolean canDecodeInput(Object input) throws IOException {
		return true;
	}

	/**
	 * Returns an instance of the JpegJMagickImageReader
	 * 
	 * @see javax.imageio.spi.ImageReaderSpi#createReaderInstance(java.lang.Object)
	 */
	public ImageReader createReaderInstance(Object source) throws IOException {
		return new JpegJMagickImageReader(this);
	}

	/**
	 * @see javax.imageio.spi.IIOServiceProvider#getDescription(java.util.Locale)
	 */
	public String getDescription(Locale locale) {
		return new StringBuffer("JPEG Image Reader, version ").append(version)
				.toString();
	}
}