/*
* This file is part of Caliph & Emir.
*
* Caliph & Emir 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.
*
* Caliph & Emir 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 Caliph & Emir; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Copyright statement:
* --------------------
* (c) 2002-2005 by Mathias Lux (mathias@juggle.at) and the Know-Center Graz
* Inffeldgasse 21a, 8010 Graz, Austria
* http://www.know-center.at
*/
package at.knowcenter.caliph.objectcatalog;
import org.jaxen.XPath;
import org.jaxen.jdom.JDOMXPath;
import org.jdom.Namespace;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.StringTokenizer;
import java.util.Vector;
/**
* This file is part of Caliph & Emir.
*
* @author Mathias Lux, mathias@juggle.at
*/
public class OCToolkit {
public static URL getLog4JPropertyFile() {
URL returnURL = null;
try {
returnURL = new File("log4j.properties").toURL();
} catch (MalformedURLException e) {
e.printStackTrace();
}
return returnURL;
}
public static URL getRelationsFile() {
return OCToolkit.class.getResource("data/mpeg7-relations.xml");
}
public static URL getBaseObjectsFile() {
return OCToolkit.class.getResource("data/base-objects.mp7.xml");
}
public static List xpathQuery(org.jdom.Document document, String xpathQuery1, Namespace xNs) {
List returnValue = new Vector();
String xpathQuery = xpathQuery1;
XPath xPath;
try {
// if there is a xmlns namespace wihtout a prefix, then
// a default one has to be added. Otherwise jaxen does not work
// Note: the prefix "x" has to be used in the xpath-query as well.
Namespace ns = document.getRootElement().getNamespace();
if (ns.getPrefix().length() == 0) {
StringTokenizer tokens = new StringTokenizer(xpathQuery, "/", true);
xpathQuery = "";
while (tokens.hasMoreTokens()) {
String token = tokens.nextToken();
if (!token.equalsIgnoreCase("/")) {
token = "x:" + token;
}
xpathQuery += token;
}
xPath = new JDOMXPath(xpathQuery);
xPath.addNamespace("x", ns.getURI());
} else {
xPath = new JDOMXPath(xpathQuery);
}
if (xNs != null) {
xPath.addNamespace(xNs.getPrefix(), xNs.getURI());
}
// console.echo("OLD: \"" + xpathQuery1 + "\", NEW: \"" + xpathQuery + "\"");
Object jdomNode = document; // Document, Element etc.
//XPath path = new JDOMXPath("/*"); //--> das root element
returnValue = xPath.selectNodes(jdomNode); // entries are from the type "org.jdom.Element"
} catch (Exception e) {
e.printStackTrace();
}
return returnValue;
}
public static Namespace getFSWNamespace() {
return Namespace.getNamespace("fsw", "http://www.at.know-center.at/fsw");
}
}