/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, 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.styling;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import junit.framework.TestCase;
import org.geotools.data.DataStore;
import org.geotools.data.memory.MemoryDataStore;
import org.geotools.data.memory.MemoryFeatureCollection;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.factory.GeoTools;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.geotools.referencing.CRS;
import org.geotools.test.TestData;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.filter.PropertyIsLessThan;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.PrecisionModel;
public class UserLayerTest extends TestCase {
private static final String CRS_WKT = "GEOGCS[\"WGS 84\", "
+ " DATUM[\"WGS_1984\","
+ " SPHEROID[\"WGS 84\", 6378137.0, 298.257223563, AUTHORITY[\"EPSG\",\"7030\"]],"
+ " AUTHORITY[\"EPSG\",\"6326\"]],"
+ " PRIMEM[\"Greenwich\", 0.0, AUTHORITY[\"EPSG\",\"8901\"]],"
+ " UNIT[\"degree\", 0.017453292519943295],"
+ " AXIS[\"Lon\", EAST]," + " AXIS[\"Lat\", NORTH],"
+ " AUTHORITY[\"EPSG\",\"4326\"]]";
private static final int SRID = 4326;
private static final String LAYER_NAME = "user-layer-1";
private static final String ID_COLUMN = "id";
private static final String GEOMETRY_COLUMN = "geometry";
private static final String LABEL_COLUMN = "label";
private static final String ID_1 = "point-1";
private static final double X_1 = -180.0;
private static final double Y_1 = -90.0;
private static final String LABEL_1 = "point location #1";
private static final String ID_2 = "point-2";
private static final double X_2 = +180.0;
private static final double Y_2 = +90.0;
private static final String LABEL_2 = "point location #2";
private static final double OPACITY = 0.75;
private static final String IMAGE_EXT = "jpg";
private static final String IMAGE_URL = "file:/somewhere/image."
+ IMAGE_EXT;
private static final String MY_NAMESPACE = "integeo";
private static final URI MY_URI;
private static final String MY_FEATURE = "myFeature";
static {
try {
MY_URI = new URI("http://geotools.org");
} catch (URISyntaxException x) {
throw new ExceptionInInitializerError(x);
}
}
public void testUserLayerWithInlineFeatures() throws Exception {
// create the feature's schema ----------------------------------------
final CoordinateReferenceSystem crs = CRS.parseWKT(CRS_WKT);
SimpleFeatureTypeBuilder ftb = new SimpleFeatureTypeBuilder();
ftb.add(ID_COLUMN, Integer.class);
ftb.add(GEOMETRY_COLUMN, Point.class, crs);
ftb.add(LABEL_COLUMN, String.class);
ftb.setName(MY_FEATURE);
final SimpleFeatureType schema = ftb.buildFeatureType();
// create a feature collection ----------------------------------------
final FeatureCollection<SimpleFeatureType, SimpleFeature> fc = new MemoryFeatureCollection(schema);
// populate the collection --------------------------------------------
final PrecisionModel pm = new PrecisionModel(PrecisionModel.FLOATING);
final GeometryFactory jtsFactory = new GeometryFactory(pm, SRID);
// create 1st point
final Point g1 = jtsFactory.createPoint(new Coordinate(X_1, Y_1));
fc.add(SimpleFeatureBuilder.build(schema, new Object[] { new Integer(1), g1, LABEL_1 }, ID_1));
// create 2nd point
final Point g2 = jtsFactory.createPoint(new Coordinate(X_2, Y_2));
fc.add(SimpleFeatureBuilder.build(schema, new Object[] { new Integer(2), g2, LABEL_2 }, ID_2));
final DataStore ds = new MemoryDataStore(fc);
// create and populate the layer --------------------------------------
final StyleFactory sf = CommonFactoryFinder.getStyleFactory(GeoTools.getDefaultHints());
final UserLayer layer = sf.createUserLayer();
layer.setName(LAYER_NAME);
layer.setInlineFeatureType(schema);
layer.setInlineFeatureDatastore(ds);
// create a user style and add it to that layer -----------------------
final Style style = sf.createStyle();
final StyleBuilder sb = new StyleBuilder(sf);
final ExternalGraphic overlay = sb.createExternalGraphic(IMAGE_URL,
"image/" + IMAGE_EXT);
final Graphic g = sb.createGraphic(overlay, null, null, OPACITY,
Double.NaN, 0.0);
final PointSymbolizer ps = sb.createPointSymbolizer(g);
final FeatureTypeStyle fts = sb.createFeatureTypeStyle(ps);
fts.setFeatureTypeName(MY_NAMESPACE + ":" + MY_FEATURE);
style.addFeatureTypeStyle(fts);
layer.addUserStyle(style);
// create an SLD and populate it with that styled layer ---------------
final StyledLayerDescriptor sld1 = sf.createStyledLayerDescriptor();
sld1.addStyledLayer(layer);
// marshal the SLD to XML ---------------------------------------------
final Map nsMap = new HashMap();
nsMap.put(MY_URI, MY_NAMESPACE);
final SLDTransformer sldTransformer = new SLDTransformer(nsMap);
sldTransformer.setIndentation(2);
String xml = sldTransformer.transform(sld1);
// unmarshal it back to an SLD instance -------------------------------
final InputStream is = new ByteArrayInputStream(xml.getBytes("UTF-8"));
final SLDParser parser = new SLDParser(sf);
parser.setInput(is);
final StyledLayerDescriptor sld2 = parser.parseSLD();
xml = sldTransformer.transform(sld2);
// check both SLDs ----------------------------------------------------
final StyledLayer[] layers = sld2.getStyledLayers();
assertNotNull("Styled layers array MUST NOT be null", layers);
assertEquals("Styled layers array MUST be 1-element long", 1,
layers.length);
final StyledLayer sLayer = layers[0];
assertNotNull("Single styled layer MUST NOT be null", sLayer);
assertTrue("Single layer MUST be a UserLayer", UserLayer.class
.isAssignableFrom(sLayer.getClass()));
final UserLayer uLayer = (UserLayer) sLayer;
final String lName = uLayer.getName();
assertEquals("Read layer name MUST match", LAYER_NAME, lName);
final SimpleFeatureType ft = uLayer.getInlineFeatureType();
assertNotNull("Unmarshalled feature type MUST NOT be null", ft);
final String fName = ft.getTypeName();
assertEquals("Read feature type name MUST match", MY_FEATURE, fName);
assertEquals(CRS.decode("EPSG:4326"), ft.getGeometryDescriptor().getCoordinateReferenceSystem());
}
public void testUserLayerWithRemoteOWS() throws Exception {
URL sldUrl = TestData.getResource(this, "remoteOws.sld");
StyleFactory factory = CommonFactoryFinder.getStyleFactory(null);
SLDParser stylereader = new SLDParser(factory, sldUrl);
StyledLayerDescriptor sld = stylereader.parseSLD();
assertEquals(1, sld.getStyledLayers().length);
assertTrue(sld.getStyledLayers()[0] instanceof UserLayer);
UserLayer layer = (UserLayer) sld.getStyledLayers()[0];
assertEquals("LayerWithRemoteOWS", layer.getName());
assertNotNull(layer.getRemoteOWS());
assertEquals("WFS", layer.getRemoteOWS().getService());
assertEquals("http://sigma.openplans.org:8080/geoserver/wfs?", layer.getRemoteOWS().getOnlineResource());
assertEquals(1, layer.getLayerFeatureConstraints().length);
FeatureTypeConstraint ftc = layer.getLayerFeatureConstraints()[0];
assertEquals("topp:states", ftc.getFeatureTypeName());
assertNotNull(ftc.getFilter());
assertTrue(ftc.getFilter() instanceof PropertyIsLessThan);
}
}