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 es.gva.cit.gazetteer.adl.drivers;

import es.gva.cit.catalogClient.metadataXML.XMLNode;

import es.gva.cit.catalogClient.protocols.HTTPPostProtocol;

import es.gva.cit.gazetteer.adl.filters.ADLFilter;

import es.gva.cit.gazetteer.adl.parsers.AdlCapabilitiesParser;

import es.gva.cit.gazetteer.adl.parsers.AdlFeatureParser;

import es.gva.cit.gazetteer.drivers.AsbtractGazetteerServiceDriver;

import es.gva.cit.gazetteer.querys.Feature;

import es.gva.cit.gazetteer.querys.Query;

import es.gva.cit.gazetteer.querys.ThesaurusName;

import java.net.URL;

import java.util.Collection;

/**

 * This class implements the driver to connect with a ADL gazetteer service

 * 

 * 

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

 * @see http://alexandria.sdc.ucsb.edu/

 */

public class ADLGazetteerServiceDriver extends AsbtractGazetteerServiceDriver {

/**

 * It invokes the getCapabilities operation

 * 

 * 

 * @return 

 * @param url 

 */

    public Collection getCapabilities(URL url) {        

       Collection nodes = new java.util.ArrayList();

       System.out.println("**************POST*************");

       nodes = new HTTPPostProtocol().doQuery(url,

               getPOSTMessageCapabilities(), 0);

       return nodes;

    } 

/**

 * It creates the XML for the getCapabilities request

 * 

 * 

 * @return Name-value pair with a XML request

 */

    private String getPOSTMessageCapabilities() {        

        return "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" +

                "<gazetteer-service " +

                "xmlns=\"http://www.alexandria.ucsb.edu/gazetteer\" " +

                "version=\"1.2\">" +

                "<get-capabilities-request/>" +

                "</gazetteer-service>";

    } 

/**

 * It invokes the getFeature operation

 * 

 * 

 * @return 

 * @param url 

 * @param query 

 */

    public Collection getFeature(URL url, Query query) {        

        Collection nodes = new java.util.ArrayList();

        setQuery(query);

      System.out.println("**************POST*************");

        System.out.println(getPOSTGetFeature(getQuery(),true));

        nodes = new HTTPPostProtocol().doQuery(url,

                       getPOSTGetFeature(getQuery(),true), 0);

       if (nodes == null){

               System.out.println(getPOSTGetFeature(getQuery(),false));

                       nodes = new HTTPPostProtocol().doQuery(url,

                getPOSTGetFeature(getQuery(),false), 0);

        }

        return nodes;

    } 

/**

 * It creates the XML for the getFeature request

 * 

 * 

 * @return Name-value pair with a XML request

 * @param query 

 */

    private String getPOSTGetFeature(Query query,boolean withAccents) {        

        return  "<gazetteer-service " +

                "xmlns=\"http://www.alexandria.ucsb.edu/gazetteer\" " +

                "xmlns:gml=\"http://www.opengis.net/gml\" " +

                "version=\"1.2\">" +

                                new ADLFilter(withAccents).getQuery(query) +

                "</gazetteer-service>" ;

    } 

/* (non-Javadoc)

     * @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#isProtocolSupported(java.net.URL)

     */

/**

 * 

 * 

 * 

 * @return 

 * @param url 

 */

    public boolean isProtocolSupported(URL url) {        

        // TODO Auto-generated method stub

        return true;

    } 

/* (non-Javadoc)

     * @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#setParameters(org.w3c.dom.Node[])

     */

/**

 * 

 * 

 * 

 * @return 

 * @param url 

 * @param feature 

 */

    public Collection describeFeatureType(URL url, String feature) {        

        // TODO Auto-generated method stub

        return null;

    } 

/* (non-Javadoc)

     * @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#setParameters(org.w3c.dom.Node[])

     */

/**

 * 

 * 

 * 

 * @return 

 * @param nodes 

 */

    public boolean setParameters(Collection nodes) {        

        return new AdlCapabilitiesParser(this).parse((XMLNode)nodes.toArray()[0]);

    } 

/* (non-Javadoc)

     * @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#parseFeatures(org.w3c.dom.Node)

     */

/**

 * 

 * 

 * 

 * @return 

 * @param node 

 * @param currentFeature 

 * @param attribute 

 */

    public Feature[] parseFeatures(XMLNode node, ThesaurusName currentFeature, String attribute) {        

        return new AdlFeatureParser().parse(node);

    } 

 }