Application: gvSIG desktop » gvSIG tools: Catalog

/* 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 org.gvsig.catalog.loaders;

import java.util.HashMap;

import java.util.Map;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.project.documents.view.gui.AbstractViewPanel;

import org.gvsig.catalog.schemas.Resource;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException;

import org.gvsig.i18n.Messages;

/**

 * This class is used to load a WMS layer in gvSIG

 * 

 * @author Jorge Piera Llodra (piera_jor@gva.es)

 */

public class WMSLayerLoader extends GvSigLayerLoader{

    private static final String FIELD_NAME = "name";

    private static final String FIELD_SRSSTR = "srsstr";

    private static final String FIELD_FORMAT = "format";

    private static final String FIELD_TRANSPARENCY = "transparency";

    private static final String FIELD_LAYERQUERY = "layer_query";

    private static final String FIELD_URI = "uri";

    private static final String FIELD_ONLINERESOURC = "onlineresources";

    private static final String FIELD_DELETECACHE     = "deletecache";

    public WMSLayerLoader(Resource resource) {

        super(resource);                

    }        

    protected boolean hasSpecificLayer() {        

        return true;

    }

    protected String getLayerName() {      

        return getResource().getName();

    }    

    protected DataStoreParameters createDataStoreParameters()

        throws InitializeException, ProviderNotRegisteredException {

        DataStoreParameters dataStoreParameters = DATA_MANAGER.createStoreParameters("Wms Store");        

        dataStoreParameters.setDynValue(FIELD_URI, getResource().getLinkage());

        dataStoreParameters.setDynValue(FIELD_FORMAT, "image/png");

        dataStoreParameters.setDynValue(FIELD_LAYERQUERY, getResource().getName());

        AbstractViewPanel activeView = 

            (AbstractViewPanel) PluginServices.getMDIManager().getActiveWindow();

        dataStoreParameters.setDynValue(FIELD_SRSSTR, activeView.getProjection().getAbrev());

        dataStoreParameters.setDynValue(FIELD_TRANSPARENCY, Boolean.TRUE);

        dataStoreParameters.setDynValue(FIELD_NAME, getLayerName());

        dataStoreParameters.setDynValue(FIELD_ONLINERESOURC, createOnlineResources());

        dataStoreParameters.setDynValue(FIELD_DELETECACHE, new Boolean(true));

        return dataStoreParameters;

    }   

    protected Map createOnlineResources() {

        Map args = new HashMap();

        args.put("GepMap", getResource().getLinkage());      

        return args;

    }

    protected String extensionPointName() {

        return "OGC:WMS";

    }

    protected String getErrorMessage() {

        return Messages.getText("wmsError") + ".\n" +

        Messages.getText("server") + ": " + 

        getResource().getLinkage() + "\n" +

        Messages.getText("layer") + ": " +

        getResource().getName();                

    }

    protected String getWindowMessage() {

        return Messages.getText("loadWMS");

    }

}