FeatureStreamWriter.java

/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. This program 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 General Public License
 *   for more details. You should have received a copy of the GNU General
 *   Public License along with this program. If not, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.connector.server.request.v110.transaction.stax;

import com.vividsolutions.jts.geom.Geometry;
import javax.xml.bind.Marshaller;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import org.geosdi.geoplatform.connector.AbstractFeatureStreamWriter;
import org.geosdi.geoplatform.connector.server.request.WFSTransactionRequest;
import org.geosdi.geoplatform.connector.wfs.response.GeometryAttributeDTO;
import org.geosdi.geoplatform.gml.api.jaxb.context.GMLJAXBContext;
import org.geosdi.geoplatform.gml.api.jaxb.context.GMLMarshaller;
import org.geosdi.geoplatform.gml.impl.v311.jaxb.context.factory.GMLContextFactoryV311;
import org.geosdi.geoplatform.gml.impl.v311.jaxb.context.factory.GMLContextType;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
public class FeatureStreamWriter extends AbstractFeatureStreamWriter<WFSTransactionRequest> {

    static {
        gmlContext = GMLContextFactoryV311.createJAXBContext(
                GMLContextType.POOLED);
    }
    //

    private static final GMLJAXBContext gmlContext;

    public FeatureStreamWriter() {
        super("1.1.0", "3.1.1");
    }

    @Override
    public void write(WFSTransactionRequest target,
            Object output) throws XMLStreamException, Exception {

        super.acquireWriter(output);

        super.writeDocument(target);
    }

    @Override
    protected final void writeGeometryAttribute(GeometryAttributeDTO geometry,
            QName typeName) throws XMLStreamException, Exception {

        writer.writeStartElement(typeName.getPrefix()
                + ":" + geometry.getName());

        String wktGeometry = geometry.getValue();
        Geometry jtsGeometry = this.wktReader.read(wktGeometry);

        if (geometry.getSrid() != null) {
            jtsGeometry.setSRID(geometry.getSrid());
        }

        GMLMarshaller marshaller = gmlContext.acquireMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);

        marshaller.marshal(jtsGeometry, writer);

        writer.writeEndElement();
    }

}