PDFThumbnailPlugin.java
/*
* Copyright (C) 2003-2008 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* 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, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.cms.thumbnail.impl;
import java.awt.image.BufferedImage;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jcr.Node;
import org.exoplatform.container.component.ComponentPlugin;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.services.cms.thumbnail.ThumbnailPlugin;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.icepdf.core.exceptions.PDFException;
import org.icepdf.core.exceptions.PDFSecurityException;
import org.icepdf.core.pobjects.Document;
import org.icepdf.core.pobjects.Page;
import org.icepdf.core.pobjects.Stream;
import org.icepdf.core.util.GraphicsRenderingHints;
/**
* Created by The eXo Platform SARL
* Author : Dang Van Minh
* minh.dang@exoplatform.com
* OCt 22, 2009
* 2:20:33 PM
*/
public class PDFThumbnailPlugin implements ComponentPlugin, ThumbnailPlugin {
private ThumbnailType config;
private String description;
private String name;
private static final Log LOG = ExoLogger.getExoLogger(PDFThumbnailPlugin.class.getName());
public PDFThumbnailPlugin(InitParams initParams) throws Exception {
config = initParams.getObjectParamValues(ThumbnailType.class).get(0);
}
public String getDescription() {
return description;
}
public String getName() {
return name;
}
public void setDescription(String description) {
this.description = description;
}
public void setName(String name) {
this.name = name;
}
public BufferedImage getBufferedImage(Node contentNode, String nodePath) throws Exception {
Document document = new Document();
// Turn off Log of org.icepdf.core.pobjects.Stream to not print error stack trace in case
// viewing a PDF file including CCITT (Fax format) images
// TODO: Remove these statement and comments after IcePDF fix ECMS-3765
Logger.getLogger(Stream.class.toString()).setLevel(Level.OFF);
try {
InputStream input = contentNode.getProperty("jcr:data").getStream() ;
document.setInputStream(input, nodePath);
} catch (PDFException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Error parsing PDF document " + ex);
}
} catch (PDFSecurityException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Error encryption not supported " + ex);
}
} catch (FileNotFoundException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Error file not found " + ex);
}
} catch (IOException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Error handling PDF document " + contentNode.getPath());
}
}
// Paint each pages content to an image and write the image to file
BufferedImage image = (BufferedImage) document.getPageImage(0, GraphicsRenderingHints.SCREEN,
Page.BOUNDARY_CROPBOX, 0.0f, 1.0f);
document.dispose();
return image;
}
public List<String> getMimeTypes() {
return config.getMimeTypes();
}
}