/*
 *    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.xml.gml;

import java.util.List;

import org.opengis.feature.type.GeometryType;
import org.opengis.feature.type.Name;
import org.opengis.filter.Filter;
import org.opengis.referencing.crs.CoordinateReferenceSystem;

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.MultiLineString;
import com.vividsolutions.jts.geom.MultiPoint;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;

/**
 * Created for GML generated FeatureTypes. Represents a Choice type.
 * 
 * 
 * This is temporary and only for use by the parser. It should never be public
 * or in common use.
 * 
 * @author Jesse
 */
class ChoiceGeometryTypeImpl extends ChoiceAttributeTypeImpl implements
        ChoiceGeometryType, GeometryType {

    private CoordinateReferenceSystem crs;

    public ChoiceGeometryTypeImpl(Name name, Class[] types,
            Class defaultType, boolean nillable, int min, int max,
            Object defaultValue, CoordinateReferenceSystem crs, List<Filter> filter) {
        super(name, types,defaultType, nillable, min, max, defaultValue, filter );
        this.crs = crs;
    }

    public Object convert(Object obj) {
        GeometryFactory fac = new GeometryFactory();
        if (getBinding() == MultiPolygon.class && obj instanceof Polygon) {
            return fac.createMultiPolygon(new Polygon[] { (Polygon) obj });
        }
        if (getBinding() == MultiPoint.class && obj instanceof Point) {
            return fac.createMultiPoint(new Point[] { (Point) obj });
        }
        if (getBinding() == MultiLineString.class && obj instanceof LineString) {
            return fac
                    .createMultiLineString(new LineString[] { (LineString) obj });
        }
        if (getBinding() == GeometryCollection.class && obj instanceof Geometry) {
            return fac
                    .createGeometryCollection(new com.vividsolutions.jts.geom.Geometry[] { (com.vividsolutions.jts.geom.Geometry) obj });
        }
        return obj;
    }
    public GeometryType getType() {
        return this;
    }
    public CoordinateReferenceSystem getCoordinateReferenceSystem() {
        return crs;
    }
}