/*
* 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.gml2.bindings;
import java.util.List;
import javax.xml.namespace.QName;
import org.geotools.gml2.GML;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;
import com.vividsolutions.jts.geom.CoordinateSequence;
import com.vividsolutions.jts.geom.CoordinateSequenceFactory;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.LinearRing;
/**
* Binding object for the type http://www.opengis.net/gml:LinearRingType.
*
* <p>
* <pre>
* <code>
* <complexType name="LinearRingType">
* <annotation>
* <documentation> A LinearRing is defined by four or more
* coordinate tuples, with linear interpolation
* between them; the first and last coordinates must
* be coincident. </documentation>
* </annotation>
* <complexContent>
* <extension base="gml:AbstractGeometryType">
* <sequence>
* <choice>
* <element ref="gml:coord" minOccurs="4" maxOccurs="unbounded"/>
* <element ref="gml:coordinates"/>
* </choice>
* </sequence>
* </extension>
* </complexContent>
* </complexType>
*
* </code>
* </pre>
* </p>
*
* @generated
*
*
*
* @source $URL$
*/
public class GMLLinearRingTypeBinding extends AbstractComplexBinding {
CoordinateSequenceFactory csFactory;
GeometryFactory gFactory;
public GMLLinearRingTypeBinding(CoordinateSequenceFactory csFactory, GeometryFactory gFactory) {
this.csFactory = csFactory;
this.gFactory = gFactory;
}
/**
* @generated
*/
public QName getTarget() {
return GML.LinearRingType;
}
public int getExecutionMode() {
return BEFORE;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Class getType() {
return LinearRing.class;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
*
* @generated modifiable
*/
public Object parse(ElementInstance instance, Node node, Object value)
throws Exception {
List coordinates = node.getChildren("coord");
if (!coordinates.isEmpty() && (coordinates.size() < 4)) {
throw new RuntimeException("LinearRing must have at least 4 coordinates");
}
if (!coordinates.isEmpty()) {
Node cnode = (Node) coordinates.get(0);
CoordinateSequence seq = (CoordinateSequence) cnode.getValue();
int dimension = GMLUtil.getDimension(seq);
CoordinateSequence lineSeq = csFactory.create(coordinates.size(), dimension);
for (int i = 0; i < coordinates.size(); i++) {
cnode = (Node) coordinates.get(i);
seq = (CoordinateSequence) cnode.getValue();
for (int j = 0; j < dimension; j++) {
lineSeq.setOrdinate(i, j, seq.getOrdinate(0, j));
}
}
return gFactory.createLinearRing(lineSeq);
}
if (node.getChild("coordinates") != null) {
Node cnode = (Node) node.getChild("coordinates");
CoordinateSequence lineSeq = (CoordinateSequence) cnode.getValue();
return gFactory.createLinearRing(lineSeq);
}
throw new RuntimeException("Could not find coordinates to build linestring");
}
public Object getProperty(Object object, QName name)
throws Exception {
LinearRing linearRing = (LinearRing) object;
if (GML.coordinates.equals(name)) {
return linearRing.getCoordinateSequence();
}
return null;
}
}