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f0478bb14d
imageio-bmp-3.2 library. - better BMP format flavours support - handle PNG encoded icons - handle transparency Added some javadoc url references to .classpath
63 lines
2.0 KiB
Java
63 lines
2.0 KiB
Java
/**
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* ImageParser
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* Copyright 2010 by Michael Peter Christen, mc@yacy.net, Frankfurt am Main, Germany
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* First released 29.6.2010 at http://yacy.net
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.yacy.document;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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import net.yacy.cora.util.ConcurrentLog;
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public class ImageParser {
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/**
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* @param filename source image file url
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* @param source image content as bytes
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* @return an Image instance parsed from image content bytes, or null if no parser can handle image format or an error occured
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*/
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public static final Image parse(final String filename, final byte[] source) {
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BufferedImage image = null;
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try {
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image = ImageIO.read(new ByteArrayInputStream(source));
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/*
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* With ImageIO.read, image is already loaded as a complete BufferedImage, no need to wait
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* full loading with a MediaTracker
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*/
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} catch (IOException e) {
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if (ConcurrentLog.isFine("IMAGEPARSER")) {
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ConcurrentLog.fine("IMAGEPARSER", "IMAGEPARSER.parse : could not parse image " + filename, e);
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}
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}
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if (image == null) {
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if (ConcurrentLog.isFine("IMAGEPARSER")) {
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ConcurrentLog.fine("IMAGEPARSER", "IMAGEPARSER.parse : ImageIO failed for " + filename);
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}
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return null;
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}
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return image;
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}
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}
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