001: //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/portal/standard/wms/control/MapRequestDispatcher.java $
002: /*---------------- FILE HEADER ------------------------------------------
003:
004: This file is part of deegree.
005: Copyright (C) 2001-2008 by:
006: EXSE, Department of Geography, University of Bonn
007: http://www.giub.uni-bonn.de/deegree/
008: lat/lon GmbH
009: http://www.lat-lon.de
010:
011: This library is free software; you can redistribute it and/or
012: modify it under the terms of the GNU Lesser General Public
013: License as published by the Free Software Foundation; either
014: version 2.1 of the License, or (at your option) any later version.
015:
016: This library is distributed in the hope that it will be useful,
017: but WITHOUT ANY WARRANTY; without even the implied warranty of
018: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019: Lesser General Public License for more details.
020:
021: You should have received a copy of the GNU Lesser General Public
022: License along with this library; if not, write to the Free Software
023: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024:
025: Contact:
026:
027: Andreas Poth
028: lat/lon GmbH
029: Aennchenstr. 19
030: 53115 Bonn
031: Germany
032: E-Mail: poth@lat-lon.de
033:
034: Prof. Dr. Klaus Greve
035: Department of Geography
036: University of Bonn
037: Meckenheimer Allee 166
038: 53115 Bonn
039: Germany
040: E-Mail: greve@giub.uni-bonn.de
041:
042:
043: ---------------------------------------------------------------------------*/
044:
045: package org.deegree.portal.standard.wms.control;
046:
047: import java.io.File;
048: import java.io.IOException;
049:
050: import javax.servlet.ServletConfig;
051: import javax.servlet.ServletException;
052: import javax.servlet.http.HttpServletRequest;
053: import javax.servlet.http.HttpServletResponse;
054: import javax.servlet.http.HttpSession;
055:
056: import org.deegree.portal.context.ViewContext;
057: import org.deegree.portal.context.WebMapContextFactory;
058: import org.deegree.portal.standard.wms.Constants;
059:
060: /**
061: * This is a <code>RequestDispatcher</code> which creates a event out of
062: * a GET or POST requests.<P>
063: *
064: * Furthermore this class implements
065: *
066: * <HR>
067: * <B>Design Patterns:</B>:<BR>
068: *
069: * The following Design Patterns are used:
070: * <UL>
071: * <LI> Proxy
072: * </UL>
073: *
074: * @author <a href="mailto:friebe@gmx.net">Torsten Friebe</a>
075: *
076: * @version $Revision: 9346 $ $Date: 2007-12-27 08:39:07 -0800 (Thu, 27 Dec 2007) $
077: *
078: */
079: public class MapRequestDispatcher extends
080: org.deegree.enterprise.control.RequestDispatcher {
081:
082: private ViewContext vc = null;
083:
084: /**
085: * This method initializes the servlet.
086: *
087: * @param cfg the servlet configuration
088: *
089: * @throws ServletException an exception
090: */
091: public void init(ServletConfig cfg) throws ServletException {
092: super .init(cfg);
093:
094: String controllerFile = getInitParameter("Handler.configFile");
095: if (!(new File(controllerFile).exists())) {
096: controllerFile = getServletContext().getRealPath(
097: controllerFile);
098: }
099: String clientContext = this
100: .getInitParameter("MapContext.configFile");
101: if (!(new File(clientContext).exists())) {
102: clientContext = getServletContext().getRealPath(
103: clientContext);
104: try {
105: File file = new File(clientContext);
106: vc = WebMapContextFactory.createViewContext(file
107: .toURL(), null, null);
108: appHandler = new MapApplicationHandler(controllerFile,
109: vc);
110: } catch (Exception e) {
111: e.printStackTrace();
112: }
113: }
114: }
115:
116: /**
117: *
118: *
119: * @param request
120: * @param response
121: *
122: * @throws ServletException
123: * @throws IOException
124: */
125: protected void service(HttpServletRequest request,
126: HttpServletResponse response) throws ServletException,
127: IOException {
128:
129: HttpSession session = request.getSession(true);
130: session.setAttribute(Constants.DEFAULTMAPCONTEXT, vc);
131: super.service(request, response);
132: }
133:
134: }
|