PolygonHandler.java

/**
 *
 *   Copyright 2015 sourceforge.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package org.gwtopenmaps.openlayers.client.geometry.responsability;

import org.gwtopenmaps.openlayers.client.geometry.Geometry;
import org.gwtopenmaps.openlayers.client.geometry.Polygon;
import org.gwtopenmaps.openlayers.client.util.JSObject;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
class PolygonHandler extends GWTOLGeometryHandler {

    public PolygonHandler() {
        super.setSuccessor(new MultiPolygonHandler());
    }

    @Override
    public Geometry buildGeometry(String geomClassName, JSObject geomElement)
            throws IllegalStateException {

        return (isCompatibleGeometry(geomClassName)
                ? Polygon.narrowToPolygon(geomElement)
                : super.forwardBuildGeometry(geomClassName, geomElement));
    }

    @Override
    protected boolean isCompatibleGeometry(String geomClassName) {
        return geomClassName.equals(Geometry.POLYGON_CLASS_NAME);
    }

}