001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/portal/standard/csw/control/DeleteFromShoppingCartListener.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036
037 package org.deegree.portal.standard.csw.control;
038
039 import javax.servlet.http.HttpServletRequest;
040 import javax.servlet.http.HttpSession;
041
042 import org.deegree.enterprise.control.FormEvent;
043 import org.deegree.enterprise.control.RPCParameter;
044 import org.deegree.enterprise.control.RPCStruct;
045 import org.deegree.enterprise.control.RPCWebEvent;
046 import org.deegree.framework.log.ILogger;
047 import org.deegree.framework.log.LoggerFactory;
048 import org.deegree.i18n.Messages;
049 import org.deegree.portal.standard.csw.CatalogClientException;
050 import org.deegree.portal.standard.csw.model.SessionRecord;
051 import org.deegree.portal.standard.csw.model.ShoppingCart;
052
053 /**
054 * A <code>${type_name}</code> class.<br/>
055 *
056 * The Listener deletes an entry from the selection/shopping cart of a user.
057 * The required information is contained in the RPCWebEvent passed to the actionPerformed method.
058 *
059 * @author <a href="mailto:mays@lat-lon.de">Judit Mays</a>
060 * @author last edited by: $Author: mschneider $
061 *
062 * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
063 *
064 * @deprecated Shopping cart will not be supported at the moment. update: new changes in deegree1_fork will not be
065 * carried here, since this class is still not used. Remove when this status changes
066 */
067 @Deprecated
068 public class DeleteFromShoppingCartListener extends AddToShoppingCartListener {
069 // extends AddToShoppingCartListener --> SimpleSearchListener --> AbstractListener.
070
071 private static final ILogger LOG = LoggerFactory.getLogger( DeleteFromShoppingCartListener.class );
072
073 /* (non-Javadoc)
074 * @see org.deegree.enterprise.control.WebListener#actionPerformed(org.deegree.enterprise.control.FormEvent)
075 */
076 @Override
077 public void actionPerformed( FormEvent event ) {
078
079 RPCWebEvent rpcEvent = (RPCWebEvent) event;
080 try {
081 validateRequest( rpcEvent );
082 } catch ( Exception e ) {
083 gotoErrorPage( Messages.getMessage( "IGEO_STD_CSW_INVALID_RPC_EVENT", e.getMessage() ) );
084 LOG.logError( e.getMessage(), e );
085 return;
086 }
087
088 HttpSession session = ( (HttpServletRequest) this.getRequest() ).getSession( true );
089 ShoppingCart cart = (ShoppingCart) session.getAttribute( Constants.SESSION_SHOPPINGCART );
090 if ( cart != null ) {
091
092 RPCParameter[] params = rpcEvent.getRPCMethodCall().getParameters();
093
094 for ( int i = 0; i < params.length; i++ ) {
095 RPCStruct struct = (RPCStruct) params[i].getValue();
096
097 String identifier = (String) struct.getMember( Constants.RPC_IDENTIFIER ).getValue();
098 String catalog = (String) struct.getMember( RPC_CATALOG ).getValue();
099 String title = (String) struct.getMember( RPC_TITLE ).getValue();
100
101 cart.remove( new SessionRecord( identifier, catalog, title ) );
102 }
103
104 // write the shopping cart back to the users session and to the request
105 session.setAttribute( Constants.SESSION_SHOPPINGCART, cart );
106 getRequest().setAttribute( Constants.SESSION_SHOPPINGCART, cart );
107 }
108
109 return;
110 }
111
112 /* (non-Javadoc)
113 * @see org.deegree.portal.standard.csw.control.SimpleSearchListener#validateRequest(org.deegree.enterprise.control.RPCWebEvent)
114 */
115 @Override
116 protected void validateRequest( RPCWebEvent rpcEvent )
117 throws CatalogClientException {
118
119 RPCParameter[] params = extractRPCParameters( rpcEvent );
120
121 // there are a varying number of params in this rpcEvent. Check them all !
122 for ( int i = 0; i < params.length; i++ ) {
123
124 RPCStruct struct = extractRPCStruct( rpcEvent, i );
125 Object member = extractRPCMember( struct, Constants.RPC_IDENTIFIER );
126 if ( member == null ) {
127 throw new CatalogClientException( Messages.getMessage( "IGEO_STD_CSW_MISSING_PARAM", Constants.RPC_IDENTIFIER ) );
128 }
129 member = extractRPCMember( struct, RPC_CATALOG );
130 if ( member == null ) {
131 throw new CatalogClientException( Messages.getMessage( "IGEO_STD_CSW_MISSING_PARAM", RPC_CATALOG ) );
132 }
133 member = extractRPCMember( struct, RPC_TITLE );
134 if ( member == null ) {
135 throw new CatalogClientException( Messages.getMessage( "IGEO_STD_CSW_MISSING_PARAM", RPC_TITLE ) );
136 }
137 }
138
139 return;
140 }
141
142 }