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/* HelpURIResolver.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.help;
import java.io.StringReader;
import java.net.MalformedURLException;
import java.util.Enumeration;
import javax.help.Map;
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.URIResolver;
import javax.xml.transform.stream.StreamSource;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.XMLOutputter;
/**
* Loads an xml-file containing the URLs for all the helpsubjects.
*/
public class HelpURIResolver implements URIResolver {
/** Creates a new instance of HelpURIResolver */
public HelpURIResolver() {
}
public Source resolve(String href, String base) throws TransformerException {
if("grinvinmap".equals (href)){
Document doc = new Document();
Element root = new Element("map");
Map map = HelpManager.getHelpSet().getCombinedMap();
for(Enumeration e = map.getAllIDs(); e.hasMoreElements(); ){
Map.ID id = (Map.ID)e.nextElement();
try {
Element entry = new Element("entry");
entry.setAttribute("key", id.getIDString());
entry.setText(map.getURLFromID(id).toString());
root.addContent(entry);
} catch (MalformedURLException ex) {
ex.printStackTrace();
}
}
doc.setRootElement(root);
XMLOutputter out = new XMLOutputter();
String output = out.outputString(doc);
return new StreamSource(new StringReader(output));
} else {
return null;
}
}
}
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