/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, 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.filter.v1_1;
import junit.framework.TestCase;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.StringReader;
import java.util.List;
import javax.xml.parsers.DocumentBuilderFactory;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterFactory;
import org.opengis.filter.PropertyIsEqualTo;
import org.opengis.filter.expression.Literal;
import org.opengis.filter.expression.PropertyName;
import org.opengis.filter.spatial.DWithin;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.xml.Encoder;
import org.geotools.xml.Parser;
import org.geotools.xml.Parser.Properties;
/**
*
*
* @source $URL$
*/
public class OGCFilterTest extends TestCase {
public void testEncode() throws Exception {
FilterFactory f = CommonFactoryFinder.getFilterFactory(null);
Filter filter = f.equal(f.property("testString"), f.literal(2), false);
File file = File.createTempFile("filter", "xml");
file.deleteOnExit();
OutputStream output = new BufferedOutputStream(new FileOutputStream(file));
Encoder encoder = new Encoder(new OGCConfiguration());
encoder.encode(filter, OGC.PropertyIsEqualTo, output);
output.flush();
output.close();
DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
docFactory.setNamespaceAware(true);
Document doc = docFactory.newDocumentBuilder().parse(file);
assertEquals("ogc:PropertyIsEqualTo", doc.getDocumentElement().getNodeName());
assertEquals(1, doc.getElementsByTagName("ogc:PropertyName").getLength());
assertEquals(1, doc.getElementsByTagName("ogc:Literal").getLength());
Element propertyName = (Element) doc.getElementsByTagName("ogc:PropertyName").item(0);
Element literal = (Element) doc.getElementsByTagName("ogc:Literal").item(0);
assertEquals("testString", propertyName.getFirstChild().getNodeValue());
assertEquals("2", literal.getFirstChild().getNodeValue());
}
public void testParse() throws Exception {
Parser parser = new Parser(new OGCConfiguration());
InputStream in = getClass().getResourceAsStream("test1.xml");
if (in == null) {
throw new FileNotFoundException(getClass().getResource("test1.xml").toExternalForm());
}
Object thing = parser.parse(in);
assertEquals(0, parser.getValidationErrors().size());
assertNotNull(thing);
assertTrue(thing instanceof PropertyIsEqualTo);
PropertyIsEqualTo equal = (PropertyIsEqualTo) thing;
assertTrue(equal.getExpression1() instanceof PropertyName);
assertTrue(equal.getExpression2() instanceof Literal);
PropertyName name = (PropertyName) equal.getExpression1();
assertEquals("testString", name.getPropertyName());
Literal literal = (Literal) equal.getExpression2();
assertEquals("2", literal.toString());
}
public void testDWithinParse() throws Exception {
String xml = "<Filter>" +
"<DWithin>" +
"<PropertyName>the_geom</PropertyName>" +
"<Point>" +
"<coordinates>-74.817265,40.5296504</coordinates>" +
"</Point>" +
"<Distance units=\"km\">200</Distance>" +
"</DWithin>" +
"</Filter>";
OGCConfiguration configuration = new OGCConfiguration();
configuration.getProperties().add(Properties.IGNORE_SCHEMA_LOCATION);
Parser parser = new Parser(configuration);
DWithin filter = (DWithin) parser.parse(new ByteArrayInputStream(xml.getBytes()));
assertNotNull(filter);
//Asserting the Property Name
assertNotNull(filter.getExpression1());
PropertyName propName = (PropertyName) filter.getExpression1();
String name = propName.getPropertyName();
assertEquals("the_geom", name);
//Asserting the Geometry
assertNotNull(filter.getExpression2());
Literal geom = (Literal) filter.getExpression2();
assertEquals("POINT (-74.817265 40.5296504)", geom.toString());
//Asserting the Distance
assertTrue(filter.getDistance() > 0 );
Double dist = filter.getDistance();
assertEquals(200.0, dist);
//Asserting the Distance Units
assertNotNull(filter.getDistanceUnits());
String unit = filter.getDistanceUnits();
assertEquals("km", unit);
}
public void testBBOXValidateWithoutPropertyName() throws Exception {
String xml =
"<ogc:Filter xmlns:ogc='http://www.opengis.net/ogc'>" +
"<ogc:BBOX>" +
"<gml:Envelope xmlns:gml='http://www.opengis.net/gml'>" +
"<gml:lowerCorner>36.986771000000005 -91.516129</gml:lowerCorner>" +
"<gml:upperCorner>42.50936100000001 -87.507889</gml:upperCorner>" +
"</gml:Envelope>" +
"</ogc:BBOX>" +
"</ogc:Filter>";
Parser p = new Parser(new OGCConfiguration());
p.validate(new StringReader(xml));
assertTrue(p.getValidationErrors().isEmpty());
}
}