/*
 *    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.gml3.bindings;

import javax.xml.namespace.QName;

import org.geotools.gml3.GML;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;
import org.opengis.referencing.crs.CoordinateReferenceSystem;

import com.vividsolutions.jts.geom.Geometry;


/**
 * Binding object for the type http://www.opengis.net/gml:AbstractGeometryType.
 *
 * <p>
 *        <pre>
 *         <code>
 *  <complexType abstract="true" name="AbstractGeometryType">
 *      <annotation>
 *          <documentation>All geometry elements are derived directly or indirectly from this abstract supertype. A geometry element may
 *                          have an identifying attribute ("gml:id"), a name (attribute "name") and a description (attribute "description"). It may be associated
 *                          with a spatial reference system (attribute "srsName"). The following rules shall be adhered: - Every geometry type shall derive
 *                          from this abstract type. - Every geometry element (i.e. an element of a geometry type) shall be directly or indirectly in the
 *                          substitution group of _Geometry.</documentation>
 *      </annotation>
 *      <complexContent>
 *          <extension base="gml:AbstractGMLType">
 *              <attribute name="gid" type="string" use="optional">
 *                  <annotation>
 *                      <documentation>This attribute is included for backward compatibility with GML 2 and is deprecated with GML 3.
 *                                                  This identifer is superceded by "gml:id" inherited from AbstractGMLType. The attribute "gid" should not be used
 *                                                  anymore and may be deleted in future versions of GML without further notice.</documentation>
 *                  </annotation>
 *              </attribute>
 *              <attributeGroup ref="gml:SRSReferenceGroup"/>
 *          </extension>
 *      </complexContent>
 *  </complexType>
 *
 *          </code>
 *         </pre>
 * </p>
 *
 * @generated
 *
 *
 * @source $URL$
 */
public class AbstractGeometryTypeBinding extends AbstractComplexBinding {
    /**
     * @generated
     */
    public QName getTarget() {
        return GML.AbstractGeometryType;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Class getType() {
        return Geometry.class;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Object parse(ElementInstance instance, Node node, Object value)
        throws Exception {
        //set the crs
        if (value instanceof Geometry) {
            CoordinateReferenceSystem crs = GML3ParsingUtils.crs(node);

            if (crs != null) {
                Geometry geometry = (Geometry) value;
                geometry.setUserData(crs);
            }
        }

        return value;
    }
    
    public Object getProperty(Object object, QName name)
        throws Exception {
        Geometry geometry = (Geometry) object;
        
        if ("srsName".equals(name.getLocalPart())) {
            CoordinateReferenceSystem crs = GML3EncodingUtils.getCRS(geometry);
            if (crs != null) {
                return GML3EncodingUtils.toURI(crs);
            }
        }

        if ("srsDimension".equals(name.getLocalPart())) {
            CoordinateReferenceSystem crs = GML3EncodingUtils.getCRS(geometry);
            if (crs != null) {
                return crs.getCoordinateSystem().getDimension();
            }
        }

        // FIXME: should be gml:id, but which GML?
        // Refactor bindings or introduce a new one for GML 3.2
        if ("id".equals(name.getLocalPart())) {
            return GML3EncodingUtils.getID(geometry);
        }

        // FIXME: should be gml:name, but which GML?
        // Refactor bindings or introduce a new one for GML 3.2
        if ("name".equals(name.getLocalPart())) {
            return GML3EncodingUtils.getName(geometry);
        }
        
        // FIXME: should be gml:description, but which GML?
        // Refactor bindings or introduce a new one for GML 3.2
        if ("description".equals(name.getLocalPart())) {
            return GML3EncodingUtils.getDescription(geometry);
        }

        return null;
    }
}