/* * Copyright (c) 2009 Los Alamos National Security, LLC. * * Los Alamos National Laboratory * Research Library * Digital Library Research & Prototyping Team * * 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 2.1 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. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ package gov.lanl.adore.djatoka.io.reader; import gov.lanl.adore.djatoka.io.FormatIOException; import gov.lanl.adore.djatoka.io.IReader; import gov.lanl.adore.djatoka.util.ImageProcessingUtils; import java.awt.image.BufferedImage; import java.awt.image.RenderedImage; import java.io.File; import java.io.IOException; import java.io.InputStream; import org.apache.log4j.Logger; /** * Use ImageIO API to read image InputStream or image file path. * @author Ryan Chute * */ public class ImageIOReader implements IReader { static Logger logger = Logger.getLogger(ImageIOReader.class); /** * Returns a BufferedImage instance for provided InputStream * @param input an InputStream consisting of an image bitstream * @return a BufferedImage instance for source image InputStream * @throws FormatIOException */ public BufferedImage open(String input) throws FormatIOException { RenderedImage renderedImage = null; try { renderedImage = javax.imageio.ImageIO.read (new File(input)); } catch (IOException e) { logger.error(e,e); return null; } return ImageProcessingUtils.convertRenderedImage(renderedImage); } /** * Returns a BufferedImage instance for provided image file path * @param input absolute file path for image file * @return a BufferedImage instance for source image file * @throws FormatIOException */ public BufferedImage open(InputStream input) throws FormatIOException { RenderedImage renderedImage = null; try { renderedImage = javax.imageio.ImageIO.read (input); } catch (IOException e) { logger.error(e,e); return null; } return ImageProcessingUtils.convertRenderedImage(renderedImage); } }