org.jahia.tools.imageprocess.ImageProcess.java Source code

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Here is the source code for org.jahia.tools.imageprocess.ImageProcess.java

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/**
 * This file is part of Jahia, next-generation open source CMS:
 * Jahia's next-generation, open source CMS stems from a widely acknowledged vision
 * of enterprise application convergence - web, search, document, social and portal -
 * unified by the simplicity of web content management.
 *
 * For more information, please visit http://www.jahia.com.
 *
 * Copyright (C) 2002-2012 Jahia Solutions Group SA. All rights reserved.
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * As a special exception to the terms and conditions of version 2.0 of
 * the GPL (or any later version), you may redistribute this Program in connection
 * with Free/Libre and Open Source Software ("FLOSS") applications as described
 * in Jahia's FLOSS exception. You should have received a copy of the text
 * describing the FLOSS exception, and it is also available here:
 * http://www.jahia.com/license
 *
 * Commercial and Supported Versions of the program (dual licensing):
 * alternatively, commercial and supported versions of the program may be used
 * in accordance with the terms and conditions contained in a separate
 * written agreement between you and Jahia Solutions Group SA.
 *
 * If you are unsure which license is appropriate for your use,
 * please contact the sales department at sales@jahia.com.
 */

//
//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//              . . . i n   j a h i a   w e   t r u s t . . .
//
//  04.10.2005  POL  First release

package org.jahia.tools.imageprocess;

import ij.ImagePlus;
import ij.WindowManager;
import ij.io.FileSaver;
import ij.io.Opener;
import ij.plugin.PlugIn;
import ij.process.ImageProcessor;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ImageProcess {

    private static final transient Logger logger = LoggerFactory.getLogger(ImageProcess.class);

    /**
     * Creates a JPEG thumbnail from inputFile and saves it to disk in
     * outputFile. scaleWidth is the width to scale the image to
     */
    public boolean createThumb(InputStream istream, File outputFile, int size) throws IOException {

        File parDir = outputFile.getParentFile();
        if (!parDir.exists())
            parDir.mkdir(); // create directory for thumbnails

        // Load the input image.

        File tmp = File.createTempFile("image", null);
        FileOutputStream out = new FileOutputStream(tmp);
        try {
            IOUtils.copy(istream, out);
        } finally {
            IOUtils.closeQuietly(out);
        }
        Opener op = new Opener();
        ImagePlus ip = op.openImage(tmp.getPath());
        if (ip == null) {
            return false;
        }
        int type = op.getFileType(tmp.getPath());
        tmp.delete();
        ImageProcessor processor = ip.getProcessor();
        if (ip.getWidth() > ip.getHeight()) {
            processor = processor.resize(size, ip.getHeight() * size / ip.getWidth());
        } else {
            processor = processor.resize(ip.getWidth() * size / ip.getHeight(), size);
        }
        ip.setProcessor(null, processor);

        return save(type, ip, outputFile);
    }

    public static boolean save(int type, ImagePlus ip, File outputFile) {
        switch (type) {
        case Opener.TIFF:
            return new FileSaver(ip).saveAsTiff(outputFile.getPath());
        case Opener.GIF:
            return new FileSaver(ip).saveAsGif(outputFile.getPath());
        case Opener.JPEG:
            return new FileSaver(ip).saveAsJpeg(outputFile.getPath());
        case Opener.TEXT:
            return new FileSaver(ip).saveAsText(outputFile.getPath());
        case Opener.LUT:
            return new FileSaver(ip).saveAsLut(outputFile.getPath());
        case Opener.ZIP:
            return new FileSaver(ip).saveAsZip(outputFile.getPath());
        case Opener.BMP:
            return new FileSaver(ip).saveAsBmp(outputFile.getPath());
        case Opener.PNG:
            ImagePlus tempImage = WindowManager.getTempCurrentImage();
            WindowManager.setTempCurrentImage(ip);
            PlugIn p = null;
            try {
                p = (PlugIn) Class.forName("ij.plugin.PNG_Writer").newInstance();
            } catch (InstantiationException e) {
                logger.error(e.getMessage(), e);
            } catch (IllegalAccessException e) {
                logger.error(e.getMessage(), e);
            } catch (ClassNotFoundException e) {
                logger.error(e.getMessage(), e);
            }
            p.run(outputFile.getPath());
            WindowManager.setTempCurrentImage(tempImage);
            return true;
        case Opener.PGM:
            return new FileSaver(ip).saveAsPgm(outputFile.getPath());
        }
        return false;
    }
}