    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/model/filterencoding/FeatureFilter.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    package org.deegree.model.filterencoding;
    037
    038    import java.util.ArrayList;
    039
    040    import org.deegree.model.feature.Feature;
    041
    042    /**
    043     * Encapsulates the information of a <Filter>element that consists of a number of FeatureId
    044     * constraints (only) (as defined in the FeatureId DTD).
    045     *
    046     * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider</a>
    047     * @author last edited by: $Author: mschneider $
    048     *
    049     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    050     */
    051    public class FeatureFilter extends AbstractFilter {
    052
    053        /** FeatureIds the FeatureFilter is based on */
    054        private ArrayList<FeatureId> featureIds = new ArrayList<FeatureId>();
    055
    056        /**
    057         *
    058         */
    059        public FeatureFilter() {
    060            // it's empty
    061        }
    062
    063        /**
    064         * @param fids
    065         */
    066        public FeatureFilter( ArrayList<FeatureId> fids ) {
    067            this.featureIds = fids;
    068        }
    069
    070        /**
    071         * Adds a FeatureId constraint.
    072         *
    073         * @param featureId
    074         *
    075         */
    076        public void addFeatureId( FeatureId featureId ) {
    077            featureIds.add( featureId );
    078        }
    079
    080        /**
    081         * @return the contained FeatureIds.
    082         *
    083         */
    084        public ArrayList<FeatureId> getFeatureIds() {
    085            return featureIds;
    086        }
    087
    088        /**
    089         * Calculates the <tt>FeatureFilter</tt>'s logical value based on the ID of the given
    090         * <tt>Feature</tt>. FIXME!!! Use a TreeSet (or something) to speed up comparison.
    091         *
    092         * @param feature
    093         *            that determines the Id
    094         * @return true, if the <tt>FeatureFilter</tt> evaluates to true, else false
    095         * @throws FilterEvaluationException
    096         *             if the evaluation fails
    097         */
    098        public boolean evaluate( Feature feature )
    099                                throws FilterEvaluationException {
    100            String id = feature.getId();
    101            for ( int i = 0; i < featureIds.size(); i++ ) {
    102                FeatureId featureId = featureIds.get( i );
    103                if ( id.equals( featureId.getValue() ) )
    104                    return true;
    105            }
    106            return false;
    107        }
    108
    109        public StringBuffer toXML() {
    110            StringBuffer sb = new StringBuffer( 500 );
    111            sb.append( "<ogc:Filter xmlns:ogc='http://www.opengis.net/ogc'>" );
    112            for ( int i = 0; i < featureIds.size(); i++ ) {
    113                FeatureId fid = featureIds.get( i );
    114                sb.append( fid.toXML() );
    115            }
    116            sb.append( "</ogc:Filter>" );
    117            return sb;
    118        }
    119
    120        public StringBuffer to100XML() {
    121            return toXML();
    122        }
    123
    124        public StringBuffer to110XML() {
    125            return toXML();
    126        }
    127    }