/*
* 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.kml.bindings;
import java.util.List;
import javax.xml.namespace.QName;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryCollection;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.LinearRing;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;
import org.geotools.kml.KML;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;
/**
* Binding object for the type http://earth.google.com/kml/2.1:MultiGeometryType.
*
* <p>
* <pre>
* <code>
* <complexType final="#all" name="MultiGeometryType">
* <complexContent>
* <extension base="kml:GeometryType">
* <sequence>
* <element maxOccurs="unbounded" ref="kml:Geometry"/>
* </sequence>
* </extension>
* </complexContent>
* </complexType>
*
* </code>
* </pre>
* </p>
*
* @generated
*
*
*
* @source $URL$
*/
public class MultiGeometryTypeBinding extends AbstractComplexBinding {
GeometryFactory geometryFactory;
public MultiGeometryTypeBinding(GeometryFactory geometryFactory) {
this.geometryFactory = geometryFactory;
}
/**
* @generated
*/
public QName getTarget() {
return KML.MultiGeometryType;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Class getType() {
return GeometryCollection.class;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Object parse(ElementInstance instance, Node node, Object value)
throws Exception {
List geometries = node.getChildValues(Geometry.class);
if (geometries.isEmpty()) {
return geometryFactory.createGeometryCollection(new Geometry[] { });
}
//try to be smart about which subclass to return
int i = 0;
Class geometryClass = geometries.get(i++).getClass();
for (; i < geometries.size(); i++) {
Class clazz = geometries.get(i).getClass();
if (!clazz.isAssignableFrom(geometryClass) && !geometryClass.isAssignableFrom(clazz)) {
geometryClass = null;
break;
}
}
if (geometryClass != null) {
if (geometryClass == Point.class) {
//create a multi point
return geometryFactory.createMultiPoint((Point[]) geometries.toArray(
new Point[geometries.size()]));
}
if ((geometryClass == LineString.class) || (geometryClass == LinearRing.class)) {
//create a multi line string
return geometryFactory.createMultiLineString((LineString[]) geometries.toArray(
new LineString[geometries.size()]));
}
if (geometryClass == Polygon.class) {
//create a multi polygon
return geometryFactory.createMultiPolygon((Polygon[]) geometries.toArray(
new Polygon[geometries.size()]));
}
}
return geometryFactory.createGeometryCollection((Geometry[]) geometries.toArray(
new Geometry[geometries.size()]));
}
public Object getProperty(Object object, QName name) throws Exception {
GeometryCollection gc = (GeometryCollection) object;
if ( KML.Geometry.equals( name ) ) {
Geometry[] g = new Geometry[gc.getNumGeometries()];
for ( int i = 0; i < g.length; i++ ) {
g[i] = gc.getGeometryN(i);
}
return g;
}
return null;
}
}