SLDParserNamespaceTest.java example

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 * 
 *    (C) 2005-2010, Open Source Geospatial Foundation (OSGeo)
 *    
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.styling;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.List;

import org.geotools.factory.CommonFactoryFinder;
import org.opengis.filter.Filter;
import org.opengis.filter.PropertyIsEqualTo;
import org.opengis.filter.expression.Expression;
import org.opengis.filter.expression.PropertyName;
import org.xml.sax.helpers.NamespaceSupport;


import junit.framework.TestCase;

public class SLDParserNamespaceTest extends TestCase {

    public static String SLD = 
        "<StyledLayerDescriptor xmlns=\"http://www.opengis.net/sld\" version=\"1.0.0\" xmlns:gml=\"http://www.opengis.net/gml\" xmlns:ogc=\"http://www.opengis.net/ogc\" >"+
        " <NamedLayer>"+
        "  <Name>layer</Name>"+
        "  <UserStyle>"+
        "   <Name>style</Name>"+
        "   <FeatureTypeStyle>"+
        "    <Rule xmlns:gsml=\"urn:cgi:xmlns:CGI:GeoSciML:2.0\">"+
        "      <ogc:Filter xmlns:xlink=\"http://www.w3.org/1999/xlink\">"+
        "      <ogc:PropertyIsEqualTo>"+
        "         <ogc:PropertyName>gsml:specification/gml:GeologicFeature/@xlink:href</ogc:PropertyName>"+
        "         <ogc:Literal>foo</ogc:Literal>"+
        "      </ogc:PropertyIsEqualTo>"+
        "      </ogc:Filter>"+
        "      <PolygonSymbolizer>"+
        "       <Fill>"+
        "        <CssParameter name=\"fill\">#FF0000</CssParameter>"+
        "       </Fill>"+
        "      </PolygonSymbolizer>"+
        "    </Rule>"+
        "   </FeatureTypeStyle>"+
        "  </UserStyle>"+
        " </NamedLayer>"+
        "</StyledLayerDescriptor>";
    
    static StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory(null);
    
    public void testNamespace() throws Exception {
        SLDParser parser = new SLDParser(styleFactory, input());
        Style[] styles = parser.readXML();
        assertEquals(styles.length, 1);
        Style style = styles[0];
        List<FeatureTypeStyle> ftstyles = style.featureTypeStyles();
        assertEquals(ftstyles.size(), 1);
        FeatureTypeStyle ftstyle = ftstyles.get(0);
        List<Rule> rules = ftstyle.rules();
        assertEquals(rules.size(), 1);
        Rule rule = rules.get(0);
        Filter filter = rule.getFilter();
        assert(filter instanceof PropertyIsEqualTo);
        Expression expr = ((PropertyIsEqualTo) filter).getExpression1();
        assert(expr instanceof PropertyName);
        NamespaceSupport ns = ((PropertyName) expr).getNamespaceContext();
        assertEquals(ns.getURI("xlink"), "http://www.w3.org/1999/xlink");
        assertEquals(ns.getURI("gml"), "http://www.opengis.net/gml");
        assertEquals(ns.getURI("gsml"), "urn:cgi:xmlns:CGI:GeoSciML:2.0");
        
    }   
    
    
    InputStream input() {
        return new ByteArrayInputStream(SLD.getBytes());
    }
}