/**
* 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) 2002-2011 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.
*/
package org.jahia.services.content.rules;
import org.drools.ObjectFilter;
import org.drools.spi.KnowledgeHelper;
import org.jahia.api.Constants;
import org.jahia.services.content.JCRNodeWrapper;
import org.jahia.services.content.JCRPropertyWrapper;
import org.jahia.services.content.JCRSessionWrapper;
import org.jahia.services.image.Image;
import org.jahia.services.image.JahiaImageService;
import javax.jcr.RepositoryException;
import java.io.File;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Iterator;
/**
* Imaging service.
* User: toto
* Date: Oct 21, 2008
* Time: 5:25:31 PM
*/
public class ImageService {
private JahiaImageService imageService;
public void setImageService(JahiaImageService imageService) {
this.imageService = imageService;
}
private static ImageService instance;
public static synchronized ImageService getInstance() {
if (instance == null) {
instance = new ImageService();
}
return instance;
}
private Image getImageWrapper(final AddedNodeFact imageNode, KnowledgeHelper drools) throws Exception {
Iterator<?> it = drools.getWorkingMemory().iterateObjects(new ObjectFilter() {
public boolean accept(Object o) {
if (o instanceof Image) {
try {
return (((Image) o).getPath().equals(imageNode.getPath()));
} catch (RepositoryException e) {
e.printStackTrace();
}
}
return false;
}
});
if (it.hasNext()) {
return (Image) it.next();
}
Image iw = imageService.getImage(imageNode.getNode());
drools.insertLogical(iw);
return iw;
}
public void addThumbnail(AddedNodeFact imageNode, String name, int size, KnowledgeHelper drools) throws Exception {
addThumbnail(imageNode, name, size,false, drools);
}
public void addThumbnail(AddedNodeFact imageNode, String name, int size,boolean square, KnowledgeHelper drools) throws Exception {
if (imageNode.getNode().hasNode(name)) {
JCRNodeWrapper node = imageNode.getNode().getNode(name);
Calendar thumbDate = node.getProperty("jcr:lastModified").getDate();
Calendar contentDate = imageNode.getNode().getNode("jcr:content").getProperty("jcr:lastModified").getDate();
if (contentDate.after(thumbDate)) {
AddedNodeFact thumbNode = new AddedNodeFact(node);
File f = getThumbFile(imageNode, size,square, drools);
drools.insert(new ChangedPropertyFact(thumbNode, Constants.JCR_DATA, f, drools));
drools.insert(new ChangedPropertyFact(thumbNode, Constants.JCR_LASTMODIFIED, new GregorianCalendar(), drools));
}
} else {
File f = getThumbFile(imageNode, size,square, drools);
AddedNodeFact thumbNode = new AddedNodeFact(imageNode, name, "jnt:resource", drools);
if (thumbNode.getNode() != null) {
drools.insert(thumbNode);
drools.insert(new ChangedPropertyFact(thumbNode, Constants.JCR_DATA, f, drools));
drools.insert(new ChangedPropertyFact(thumbNode, Constants.JCR_MIMETYPE, imageNode.getMimeType(), drools));
drools.insert(new ChangedPropertyFact(thumbNode, Constants.JCR_LASTMODIFIED, new GregorianCalendar(), drools));
}
}
}
public void addThumbnail(ChangedPropertyFact propertyWrapper, String name, int size, KnowledgeHelper drools) throws Exception {
final JCRPropertyWrapper property = propertyWrapper.getProperty();
final JCRSessionWrapper session = property.getSession();
JCRNodeWrapper node = session.getNodeByIdentifier(property.getString());
addThumbnail(new AddedNodeFact(node),name, size,drools);
}
public void addSquareThumbnail(ChangedPropertyFact propertyWrapper, String name, int size, KnowledgeHelper drools) throws Exception {
final JCRPropertyWrapper property = propertyWrapper.getProperty();
final JCRSessionWrapper session = property.getSession();
JCRNodeWrapper node = session.getNodeByIdentifier(property.getString());
addThumbnail(new AddedNodeFact(node),name, size, true, drools);
}
protected File getThumbFile(AddedNodeFact imageNode, int size,boolean square,KnowledgeHelper drools) throws Exception {
String savePath = org.jahia.settings.SettingsBean.getInstance().getTmpContentDiskPath();
File Ftemp = new File(savePath);
if (!Ftemp.exists()) Ftemp.mkdirs();
final File f = File.createTempFile("thumb","jpg", Ftemp);
Image iw = getImageWrapper(imageNode, drools);
imageService.createThumb(iw, f, size, square);
f.deleteOnExit();
return f;
}
public void setHeight(AddedNodeFact imageNode, String propertyName, KnowledgeHelper drools) throws Exception {
if (!imageNode.getNode().hasProperty(propertyName)) {
Image iw = getImageWrapper(imageNode, drools);
if (iw == null) {
return;
}
int height = imageService.getHeight(iw);
if (height == -1 ) {
return;
}
drools.insert(new ChangedPropertyFact(imageNode, propertyName, height, drools));
}
}
public void setWidth(AddedNodeFact imageNode, String propertyName, KnowledgeHelper drools) throws Exception {
if (!imageNode.getNode().hasProperty(propertyName)) {
Image iw = getImageWrapper(imageNode, drools);
if (iw == null) {
return;
}
int width = imageService.getWidth(iw);
if (width == -1 ) {
return;
}
drools.insert(new ChangedPropertyFact(imageNode, propertyName, width, drools));
}
}
}