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.parsers.wfsg;

import java.util.Vector;

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

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

import es.gva.cit.catalogClient.querys.Coordinates;

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

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

/**

 * This class parses a WFs-G getCapabilities file

 * 

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

 */

public class WfsgCapabilitiesParser {

    WFSGazetteerServiceDriver driver;

    XMLNode rootNode = null;

    public WfsgCapabilitiesParser(WFSGazetteerServiceDriver driver) {

        this.driver = driver;

    }

    public boolean parse(XMLNode node){

        if ((node == null) || !(node.getName().equals("WFS_Capabilities"))){

            driver.setServerAnswerReady("El servidor no soporta el protocolo " +

                    "especificado");

            return false;

        }

        setRootNode(node);

        driver.setServerAnswerReady(XMLTree.searchNodeValue(node,

                "Service->Title") + "\n" +

                XMLTree.searchNodeValue(node,

                "Service->Abstract"));

        parseGetCapabilities();

        parseDescribeFeatureType();

        parseGetFeature();

        parseFeatures();

        return true;

    }

    /**

     * It parses the getCapabilities operation options

     *

     */

    public void parseGetCapabilities() {

            driver.setOperations(new WfsgProtocolsOperations());

        driver.getOperations().setGetCapabilities(getOperations("GetCapabilities"));

    }

    /**

     * It parses the DescribeFeatureType operation options

     *

     */    

    public void parseDescribeFeatureType(){

        driver.getOperations().setDescribeFeatureType(getOperations("DescribeFeatureType"));

    }

    /**

     * It parses the GetFeature operation options

     *

     */

    public void parseGetFeature(){

        driver.getOperations().setGetFeature(getOperations("GetFeature"));

    }

    /**

     * It parses the Feature Types

     *

     */    

    public void parseFeatures(){

        XMLNode[] features = XMLTree.searchMultipleNode(getRootNode(),"FeatureTypeList->FeatureType");

        Vector v = new Vector();

        for (int i=0 ; i<features.length ; i++){

            v.add(parseFeature(features[i]));

        }

        driver.setVectorFeatures(v);

    }

    /**

     * It parses a Feature Node.

     * @param featureNode

     * @return

     */

    public ThesaurusName parseFeature(XMLNode featureNode){

        ThesaurusName f = new ThesaurusName();

        f.setName(XMLTree.searchNodeValue(featureNode,"Name"));

        f.setTitle(XMLTree.searchNodeValue(featureNode,"Title"));

        if (f.getTitle() == null)

            f.setTitle(f.getName());

        f.setAbstract(XMLTree.searchNodeValue(featureNode,"Abstract"));

        f.setKeywords(XMLTree.searchNodeValue(featureNode,"Keywords"));

        f.setSrs(XMLTree.searchNodeValue(featureNode,"SRS"));

        f.setCoordinates(new Coordinates(XMLTree.searchNodeAtribute(featureNode,"LatLongBoundingBox","minx"),

                XMLTree.searchNodeAtribute(featureNode,"LatLongBoundingBox","miny"),

                XMLTree.searchNodeAtribute(featureNode,"LatLongBoundingBox","maxx"),

                XMLTree.searchNodeAtribute(featureNode,"LatLongBoundingBox","maxy")));

        return f;

    }

    /**

     * This function parses the protocols of an operation

     * @param operation

     * Operation to find the supported protocols

     * @return

     */

    public String[] getOperations(String operation){

        XMLNode[] protocols = XMLTree.searchMultipleNode(getRootNode(),"Capability->Request->" + operation + "->DCPType");

        Vector vProtocols = new Vector();

        for (int i=0 ; i<protocols.length ; i++){

            if (XMLTree.searchNode(protocols[i],"HTTP->Get") != null){

                vProtocols.add("GET");

            }

            if (XMLTree.searchNode(protocols[i],"HTTP->Post") != null){

                vProtocols.add("POST");

            }

        }  

        String[] sProtocols = new String[vProtocols.size()];

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

            sProtocols[i] = (String) vProtocols.get(i);

        }        

       return sProtocols;

    }

    /**

     * @return Returns the rootNode.

     */

    public XMLNode getRootNode() {

        return rootNode;

    }

    /**

     * @param rootNode The rootNode to set.

     */

    public void setRootNode(XMLNode rootNode) {

        this.rootNode = rootNode;

    }

}