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.gui.wizards;

import java.awt.geom.Rectangle2D;

import java.io.File;

import java.net.URL;

import java.util.ArrayList;

import java.util.Hashtable;

import java.util.Vector;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.DriverException;

import com.iver.cit.gvsig.fmap.drivers.wms.FMapWMSDriver;

import com.iver.cit.gvsig.fmap.drivers.wms.FMapWMSDriverFactory;

import com.iver.cit.gvsig.fmap.drivers.wms.WMSOperations;

import com.iver.cit.gvsig.fmap.layers.WMSLayerNode;

/**

 * Class holding the data shown at the wms wizards

 *

 * @author Jaume Dominguez Faus

 */

public class WMSWizardData implements WMSOperations { 

        private String title;

        private String theAbstract;

        private WMSLayerNode layers;

        private String[] formats;

        private String serverVersion;

        private FMapWMSDriver wms = null;

        private Hashtable onlineResources = null;

        /**

         * The listener of the wizard that depends on this

         */

        private WMSOperations wizardListener;

        /**

         * @return Returns the serverVersion.

         */

        public String getServerVersion() {

                return serverVersion;

        }

        public String getHost(){

                return wms.getHost();

        }

        public void setHost(URL host, boolean override) throws DriverException{

                wms = FMapWMSDriverFactory.getDriverForHost(host);

                wms.addListener(this);

                // Send a getCapabilities request;

                if (!wms.connect(override))

                        throw new DriverException(PluginServices.getText(this, "cant_connect") + host.toString());

        }

        /**

         * M?todo para saber los formatos que admite la aplicaci?n

         *

         * @param format cadena con el formato a validar

         *

         * @return true si soportamos dicho formato y false en

         * caso contrario

         */

        private boolean isValidFormat(String format) {

                if (format.equalsIgnoreCase("image/png") ||

                                format.equalsIgnoreCase("image/jpg") ||

                                format.equalsIgnoreCase("image/tiff") ||

                                format.equalsIgnoreCase("image/jpeg") ||

                                format.equalsIgnoreCase("image/tif") ||

                                format.equalsIgnoreCase("image/gif")) {

                        return true;

                }

                return false;

        }

        public String getAbstract() {

                return theAbstract;

        }

        public String[] getFormats() {

                return formats;

        }

        public WMSLayerNode getLayer() {

                return layers;

        }

        public String getTitle() {

                return title;

        }

        public String getServerType() {

                if (serverVersion==null) return "WMS";

                return "WMS "+serverVersion;

        }

        public Hashtable getOnlineResources() {

                return onlineResources;

        }

        public Rectangle2D getBoundingBox(String[] layerNames, String srs) {

                return wms.getLayersExtent(layerNames, srs);

        }

        public FMapWMSDriver getDriver() {

                return wms;

        }

        public boolean isQueryable() {

                return wms.isQueryable();

        }

        public void getMap(int eventType, File mapFile, String message) { /* Does not make sense in this context. */ };

        public void getFeatureInfo(int eventType, String message) { /* Does not make sense in this context. */ };

        public void getCapabilities(int eventType, String message) {

                if(eventType == WMSOperations.REQUEST_FINISHED) {

                        // Transfer complete -> initialize properties.

                        if (wms.getAbstract()  != null)

                                theAbstract = wms.getAbstract();

                        Vector f = wms.getFormats(); 

                        ArrayList formatos = new ArrayList();

                        for (int i = 0; i < f.size(); i++) {

                                if (isValidFormat((String)f.elementAt(i))) {

                                        formatos.add(f.elementAt(i));

                                }

                        }

                        formats = (String[]) formatos.toArray(new String[0]);

                        serverVersion = (wms.getVersion() == null) ? "" : wms.getVersion();

                        onlineResources = wms.getOnlineResources();

                        layers = wms.getLayersTree(); // LayersTree as they are defined in the Capabilities document

                }        

                if (wizardListener!=null)

                        // Notify WMSWizard that the data is ready.

                        wizardListener.getCapabilities(eventType, message);

        }

        public void setWizardListener(WMSOperations listener) {

                this.wizardListener = listener;                

        }

        public void cancelTransfer() {

                wms.cancel(WMSOperations.GET_CAPABILITIES);

        }

}