Application: gvSIG desktop

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

 *

 * Copyright (C) 2004-2006 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 Iba?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.publish.mapserver.model.wcs;

import org.gvsig.publish.PublishLogger;

import org.gvsig.publish.exceptions.PublishException;

import org.gvsig.publish.infoproject.IDataSourceInfo;

import org.gvsig.publish.infoproject.ILayerInfo;

import org.gvsig.publish.infoproject.datasources.IDataBaseInfo;

import org.gvsig.publish.mapserver.conf.MapFile;

import org.gvsig.publish.mapserver.conf.MapFile.CRS;

import org.gvsig.publish.mapserver.conf.MapFile.Layer;

import org.gvsig.publish.mapserver.model.Mapserver;

import org.gvsig.publish.mapserver.util.MapserverUtilities;

import org.gvsig.publish.ogcmetadata.IOGCCommonMetadata;

import org.gvsig.publish.ogcmetadata.OGCCommonMetadata;

import org.gvsig.publish.serversmodel.RemoteResource;

import com.iver.utiles.XMLEntity;

public class MapserverWCSLayer extends RemoteResource implements IOGCCommonMetadata{

        public final static String REGISTER_TAG="mapserver_wcs_layer";

        /*

         * Properties

         */

        private OGCCommonMetadata ogcMetadata = null;

        private MapFile.Layer config = null;

        /**

         * Constructor

         * 

         * @param service

         */

        public MapserverWCSLayer(MapserverWCS service) {

                super(service);

                ogcMetadata = new OGCCommonMetadata();

        }

        /**

         * Initializes the remote resource name and title with the name and title of the layer

         */

        public void setLayerInfo(ILayerInfo layerInfo) {

                super.setLayerInfo(layerInfo);                

                setName(getLayerInfo().getName());

                setTitle(getLayerInfo().getTitle());

                setAbstract("generated by gvSIG");

        }

        private Mapserver getMapServer(){

                //Cast to Mapserver

                Mapserver mapserver = (Mapserver)getService().getServer();

                return mapserver;

        }

        /**

         * Generates a new layer configuration in the mapfile when is invoked

         * @see org.gvsig.publish.serversmodel.RemoteResource#publish()

         */

        public void publish() throws PublishException {        

                config = new MapFile.Layer();

                getMapServer().getConfigFile().add(config);

                generateLayerSection();

                //publish all its childs                

                super.publish();

        }

        private void generateLayerSection() throws PublishException{

                //LAYER

                config.name = getName();

                config.status = "ON";

                config.debug = getMapServer().isDebug();

                config.type = MapserverUtilities.getTypeParameter(getLayerInfo().getDataSource());

                generateDataParameter();

                config.connectiontype = MapserverUtilities.getConnectionTypeParameter(getLayerInfo().getDataSource());

                config.connection = MapserverUtilities.getConnectionParameter(getLayerInfo().getDataSource());

                config.transparency = getLayerInfo().getOpacityPercent();

                config.dump = true;                

                //PROJECTION                 

                config.layercrs = new CRS(getLayerInfo().getDataSource().getEPSG(),true);                                

                //METADATA

                generateMetadata(config);

        }

        /**

         * Generates the LAYER->DATA parameter 

         * 

         */

        private void generateDataParameter() {

                IDataSourceInfo ds = getLayerInfo().getDataSource();

                if (ds.getType() == IDataSourceInfo.POSTGIS_TYPE){

                        IDataBaseInfo db = (IDataBaseInfo)ds;

                        String table = db.getTableName();

                        config.data ="the_geom from "  + table + " using unique " + db.getGID() + " using srid=" + ds.getSRID(); 

                }else{

                        config.data = getService().getServer().getPublication().getServerSideFilePath(ds);

                }                                

        }

        /**

         * Generates the METADATA object

         * @param mapLayer

         * @throws LayerInfoNotAvailableException 

         */

        private void generateMetadata(Layer mapLayer) {

                //add metadata

                mapLayer.metadata.wcs_name = getName();

                mapLayer.metadata.wcs_label =getTitle();

                mapLayer.metadata.wcs_description = getAbstract();

                //Rectangle2D aux = getLayerInfo().getBBox();

                //String bbox = aux.getMinX() + " " + aux.getMinY() + " " + aux.getMaxX() + " " + aux.getMaxY();

                //mapLayer.metadata.wcs_extent = bbox;        

                IDataSourceInfo ds = getLayerInfo().getDataSource();

                mapLayer.metadata.wcs_srs= ds.getEPSG();

                mapLayer.metadata.wcs_formats = MapserverUtilities.getOutputformatName(ds);

                mapLayer.metadata.wcs_nativeformat = MapserverUtilities.getOutputformatName(ds);

                mapLayer.metadata.wcs_rangeset_axes = "bands";

        }

        public String getClassName() {

                return "MapserverWCSLayer";

        }

        public XMLEntity getXMLEntity() {

                XMLEntity xml=super.getXMLEntity();

                //put version and name

                xml.setName(getClassName());

                xml.putProperty("version", getVersion());

                //put associations

                XMLEntity child = new XMLEntity();

                child.setName("ogcmetadata");

                child.addChild(ogcMetadata.getXMLEntity());

                xml.addChild(child);

                return xml;

        }

        public void setXMLEntity(XMLEntity xml) {

                //check version

                int version = xml.getIntProperty("version");

                if (version != getVersion()){

                        PublishLogger.getLog().error("ERROR: " + getClassName() + ": the version doesn't match!");                        

                        return;

                }

                super.setXMLEntity(xml);                                                

                //set associations

                XMLEntity child = xml.firstChild("name","ogcmetadata");

                ogcMetadata.setXMLEntity(child.getChild(0));                

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.serversmodel.RemoteResource#getRegisterTag()

         */

        public String getRegisterTag() {

                return REGISTER_TAG;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#getAbstract()

         */

        public String getAbstract() {

                return ogcMetadata.getAbstract();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#getName()

         */

        public String getName() {

                return ogcMetadata.getName();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#getTitle()

         */

        public String getTitle() {

                return ogcMetadata.getTitle();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#setAbstract(java.lang.String)

         */

        public void setAbstract(String description) {

                ogcMetadata.setAbstract(description);                

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#setName(java.lang.String)

         */

        public void setName(String name) {

                ogcMetadata.setName(name);                

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.ogcmetadata.IOGCCommonMetadata#setTitle(java.lang.String)

         */

        public void setTitle(String title) {

                ogcMetadata.setTitle(title);                

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.publish.IPublishPersistence#getVersion()

         */

        public int getVersion() {

                return 1;

        }

        /*

         * (non-Javadoc)

         * @see java.lang.Object#toString()

         */

        public String toString(){

                return getName();

        }

}