001 //$HeadURL$
002 /*---------------- FILE HEADER ------------------------------------------
003 This file is part of deegree.
004 Copyright (C) 2001-2008 by:
005 Department of Geography, University of Bonn
006 http://www.giub.uni-bonn.de/deegree/
007 lat/lon GmbH
008 http://www.lat-lon.de
009
010 This library is free software; you can redistribute it and/or
011 modify it under the terms of the GNU Lesser General Public
012 License as published by the Free Software Foundation; either
013 version 2.1 of the License, or (at your option) any later version.
014 This library is distributed in the hope that it will be useful,
015 but WITHOUT ANY WARRANTY; without even the implied warranty of
016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017 Lesser General Public License for more details.
018 You should have received a copy of the GNU Lesser General Public
019 License along with this library; if not, write to the Free Software
020 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
021 Contact:
022
023 Andreas Poth
024 lat/lon GmbH
025 Aennchenstr. 19
026 53177 Bonn
027 Germany
028 E-Mail: poth@lat-lon.de
029
030 Prof. Dr. Klaus Greve
031 Department of Geography
032 University of Bonn
033 Meckenheimer Allee 166
034 53115 Bonn
035 Germany
036 E-Mail: greve@giub.uni-bonn.de
037 ---------------------------------------------------------------------------*/
038
039
040 package org.deegree.security.owsrequestvalidator.csw;
041
042 import java.io.IOException;
043 import java.io.StringReader;
044 import java.util.List;
045
046 import org.deegree.framework.xml.XMLFragment;
047 import org.deegree.model.filterencoding.AbstractFilter;
048 import org.deegree.model.filterencoding.ComplexFilter;
049 import org.deegree.model.filterencoding.FilterConstructionException;
050 import org.deegree.model.filterencoding.Literal;
051 import org.deegree.model.filterencoding.LogicalOperation;
052 import org.deegree.model.filterencoding.Operation;
053 import org.deegree.model.filterencoding.OperationDefines;
054 import org.deegree.model.filterencoding.PropertyIsCOMPOperation;
055 import org.deegree.model.filterencoding.PropertyName;
056 import org.deegree.security.owsrequestvalidator.Policy;
057 import org.deegree.security.owsrequestvalidator.ResponseValidator;
058 import org.xml.sax.SAXException;
059
060 /**
061 *
062 *
063 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
064 * @author last edited by: $Author: poth $
065 *
066 * @version. $Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $
067 */
068 abstract class AbstractCSWResponseValidator extends ResponseValidator {
069
070 private static final String PROPERTY_INSTANCEFILTER = "instanceFilter";
071
072 /**
073 *
074 * @param policy
075 */
076 public AbstractCSWResponseValidator( Policy policy ) {
077 super( policy );
078 }
079
080 /**
081 *
082 * @param operation
083 * @return
084 * @throws IOException
085 * @throws SAXException
086 * @throws FilterConstructionException
087 */
088 protected ComplexFilter extractInstanceFilter( Operation operation, List<ComplexFilter> foundFilters )
089 throws SAXException, IOException, FilterConstructionException {
090 ComplexFilter filter = null;
091 if ( operation.getOperatorId() == OperationDefines.AND || operation.getOperatorId() == OperationDefines.OR ) {
092 List<Operation> arguments = ( (LogicalOperation) operation ).getArguments();
093 for ( int i = 0; i < arguments.size(); i++ ) {
094 Operation op = arguments.get( i );
095 filter = extractInstanceFilter( op, foundFilters );
096 if ( filter != null ) {
097 // foundFilters.add( filter );
098 }
099 /*
100 * if ( op.getOperatorId() == OperationDefines.PROPERTYISEQUALTO ) { PropertyName pn = (PropertyName) (
101 * (PropertyIsCOMPOperation) op ).getFirstExpression(); if ( PROPERTY_INSTANCEFILTER.equals(
102 * pn.getValue().getAsString() ) ) { Literal literal = (Literal) ( (PropertyIsCOMPOperation) op
103 * ).getSecondExpression(); StringReader sr = new StringReader( literal.getValue() ); XMLFragment xml =
104 * new XMLFragment( sr, XMLFragment.DEFAULT_URL ); filter = (ComplexFilter) AbstractFilter.buildFromDOM(
105 * xml.getRootElement() ); } }
106 */
107 }
108 } else {
109 if ( operation.getOperatorId() == OperationDefines.PROPERTYISEQUALTO ) {
110 PropertyName pn = (PropertyName) ( (PropertyIsCOMPOperation) operation ).getFirstExpression();
111 if ( PROPERTY_INSTANCEFILTER.equals( pn.getValue().getAsString() ) ) {
112 Literal literal = (Literal) ( (PropertyIsCOMPOperation) operation ).getSecondExpression();
113 StringReader sr = new StringReader( literal.getValue() );
114 XMLFragment xml = new XMLFragment( sr, XMLFragment.DEFAULT_URL );
115 filter = (ComplexFilter) AbstractFilter.buildFromDOM( xml.getRootElement() );
116 if ( filter != null ) {
117 foundFilters.add( filter );
118 }
119 }
120 }
121 }
122 return filter;
123 }
124
125 }