Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.fmap.drivers.wms;

import com.iver.cit.gvsig.fmap.drivers.WMSDriver;

import com.iver.cit.gvsig.fmap.drivers.WMSException;

import com.iver.wmsclient.Capabilities;

import com.iver.wmsclient.FeatureInfoQuery;

import com.iver.wmsclient.MapQuery;

import com.iver.wmsclient.UnsupportedVersionException;

import com.iver.wmsclient.WMSClient;

import com.iver.wmsclient.WMSClientFactory;

import org.exolab.castor.xml.ValidationException;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.net.ProtocolException;

import java.net.URL;

import javax.imageio.ImageIO;

/**

 * Driver WMS.

 *

 * @author Vicente Caballero Navarro

 */

public class FMapWMSDriver implements WMSDriver {

        private MapQuery lastMapQuery;

        private WMSClient client;

        /**

         * @see com.iver.cit.gvsig.fmap.drivers.WMSDriver#getCapabilities(java.net.URL)

         */

        public void getCapabilities(URL servidor)

                throws WMSException, IOException, ProtocolException {

                try {

                        Capabilities c = getClient(servidor).getCapabilities(servidor);

                } catch (UnsupportedVersionException e) {

                        throw new WMSException(e);

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.drivers.WMSDriver#getMap(com.iver.cit.gvsig.fmap.drivers.wms.MapQuery)

         */

        public Image getMap(MapQuery mapQuery)

                throws WMSException, IOException, ProtocolException {

                BufferedImage image = new BufferedImage(mapQuery.getWidth(),

                                mapQuery.getHeight(), BufferedImage.TYPE_INT_ARGB);

                try {

                        byte[] res = client.doMapQuery(mapQuery);

                        ByteArrayInputStream inbytes = new ByteArrayInputStream(res);

                        image = ImageIO.read(inbytes);

                        return image;

                } catch (ValidationException e) {

                        throw new ProtocolException();

                } catch (com.iver.wmsclient.WMSException e) {

                        throw new WMSException(e);

                } catch (NoSuchFieldException e) {

                        throw new RuntimeException(

                                "No se incluyeron todos los campos necesarios de la petici?n");

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.drivers.WMSDriver#getFeatureInfo(com.iver.cit.gvsig.fmap.drivers.wms.InfoQuery)

         */

        public String getFeatureInfo(FeatureInfoQuery infoQuery)

                throws WMSException, IOException, ProtocolException {

                return null;

        }

        /**

         * Devuelve WMSClient a partir de su URL.

         *

         * @param url URL.

         *

         * @return WMSClient.

         *

         * @throws UnsupportedVersionException

         * @throws IOException

         */

        private WMSClient getClient(URL url)

                throws UnsupportedVersionException, IOException {

                if (client == null) {

                        client = WMSClientFactory.getClient(url);

                }

                return client;

        }

}