001 /*
002 *
003 * $Revision: 15105 $ $Date: 2009-04-23 11:23:28 +0200 (Do, 23. Apr 2009) $
004 *
005 * This file is part of *** M y C o R e ***
006 * See http://www.mycore.de/ for details.
007 *
008 * This program is free software; you can use it, redistribute it
009 * and / or modify it under the terms of the GNU General Public License
010 * (GPL) as published by the Free Software Foundation; either version 2
011 * of the License or (at your option) any later version.
012 *
013 * This program is distributed in the hope that it will be useful, but
014 * WITHOUT ANY WARRANTY; without even the implied warranty of
015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016 * GNU General Public License for more details.
017 *
018 * You should have received a copy of the GNU General Public License
019 * along with this program, in a file called gpl.txt or license.txt.
020 * If not, write to the Free Software Foundation Inc.,
021 * 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA
022 */
023
024 package org.mycore.frontend.indexbrowser.lucene;
025
026 import java.util.Enumeration;
027
028 import javax.servlet.http.HttpServletRequest;
029
030 import org.jdom.Document;
031 import org.mycore.frontend.servlets.MCRServlet;
032 import org.mycore.frontend.servlets.MCRServletJob;
033
034 /**
035 * Servlet to create an xml document which is parsed by xsl
036 * to display the index browser results of the current request.
037 *
038 * @author Anja Schaar, Andreas Trappe, Matthias Eichner
039 */
040 public class MCRIndexBrowserServlet extends MCRServlet {
041
042 private static final long serialVersionUID = 4963472470316616461L;
043
044 protected MCRIndexBrowserIncomingData incomingBrowserData;
045
046 protected MCRIndexBrowserConfig config;
047
048 protected void doGetPost(MCRServletJob job) throws Exception {
049 @SuppressWarnings("unchecked")
050 Enumeration<String> ee = job.getRequest().getParameterNames();
051 while (ee.hasMoreElements()) {
052 String param = ee.nextElement();
053 System.out.println("PARAM: " + param + " VALUE: " + job.getRequest().getParameter(param));
054 }
055
056 incomingBrowserData = getIncomingBrowserData(job.getRequest());
057 config = new MCRIndexBrowserConfig(incomingBrowserData.getSearchclass());
058
059 Document pageContent = null;
060 // if init is true, then create an empty document, otherwise create
061 // the result list
062 if(!incomingBrowserData.isInit()) {
063 pageContent = createResultListDocument();
064 } else {
065 pageContent = createEmptyDocument();
066 }
067
068 if (getProperty(job.getRequest(), "XSL.Style") == null) {
069 job.getRequest().setAttribute("XSL.Style", job.getRequest().getParameter("searchclass"));
070 }
071 getLayoutService().doLayout(job.getRequest(), job.getResponse(), pageContent);
072 }
073
074 /**
075 * Creates a xml document with the results of the index browser.
076 * @return a new xml document with the result list
077 */
078 protected Document createResultListDocument() {
079 return MCRIndexBrowserUtils.createResultListDocument(incomingBrowserData, config);
080 }
081
082 /**
083 * Creates an empty xml index browser document.
084 * @return a new empty document
085 */
086 protected Document createEmptyDocument() {
087 return MCRIndexBrowserUtils.createEmptyDocument(incomingBrowserData);
088 }
089
090 protected MCRIndexBrowserIncomingData getIncomingBrowserData(HttpServletRequest request) {
091 return MCRIndexBrowserUtils.getIncomingBrowserData(request);
092 }
093 }