/*
 *    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.net.URI;
import java.util.logging.Logger;

import javax.xml.namespace.QName;

import org.geotools.gml2.GML;
import org.geotools.referencing.CRS;
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 name="AbstractGeometryType" abstract="true">
 *      <annotation>
 *          <documentation>         All geometry elements are derived from
 *              this abstract supertype;          a geometry element may
 *              have an identifying attribute (gid).          It may be
 *              associated with a spatial reference system.       </documentation>
 *      </annotation>
 *      <complexContent>
 *          <restriction base="anyType">
 *              <attribute name="gid" type="ID" use="optional"/>
 *              <attribute name="srsName" type="anyURI" use="optional"/>
 *          </restriction>
 *      </complexContent>
 *  </complexType>
 *
 *          </code>
 *         </pre>
 * </p>
 *
 * @generated
 *
 *
 * @source $URL$
 */
public class GMLAbstractGeometryTypeBinding extends AbstractComplexBinding {
    Logger logger;

    public GMLAbstractGeometryTypeBinding(Logger logger) {
        this.logger = logger;
    }

    /**
     * @generated
     */
    public QName getTarget() {
        return GML.ABSTRACTGEOMETRYTYPE;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public int getExecutionMode() {
        return OVERRIDE;
    }

    /**
     * <!-- 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 {
        if (value instanceof Geometry) {
            Geometry geometry = (Geometry) value;

            //<attribute name="srsName" type="anyURI" use="optional"/>
            if (node.hasAttribute("srsName")) {
                URI srs = (URI) node.getAttributeValue("srsName");
                CoordinateReferenceSystem crs = CRS.decode(srs.toString());

                if (crs != null) {
                    geometry.setUserData(crs);
                } else {
                    logger.warning("Could not create Coordinate Reference System for " + srs);
                }
            }

            //TODO: process the ID attribute
        }

        return value;
    }

    public Object getProperty(Object object, QName name)
        throws Exception {
        if ("srsName".equals(name.getLocalPart())) {
            Geometry geometry = (Geometry) object;

            if (geometry.getUserData() instanceof CoordinateReferenceSystem) {
                return GML2EncodingUtils.crs((CoordinateReferenceSystem) geometry.getUserData());
            }
        }

        return null;
    }
}