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.catalogClient.parsers.ISO19115Deegree;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import javax.imageio.ImageIO;

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

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

import es.gva.cit.catalogClient.parsers.AbstractTags;

import es.gva.cit.catalogClient.parsers.Resource;

/**

 * This class is used to parse the metadata retreived using

 * the CSW deegree server.

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

 */

public class DeegreeRecordsParser extends AbstractTags {

    public DeegreeRecordsParser(XMLNode node) {

        setNode(node);

        setTitle(XMLTree.searchNodeValue(node,

                "iso19115:identificationInfo->smXML:MD_DataIdentification->smXML:citation->smXML:CI_Citation->smXML:title->smXML:CharacterString"));

        setAbstract_(XMLTree.searchNodeValue(node,

                "iso19115:identificationInfo->smXML:MD_DataIdentification->smXML:abstract->smXML:CharacterString"));

        setPurpose(XMLTree.searchNodeValue(node,

                "iso19115:identificationInfo->smXML:MD_DataIdentification->smXML:purpose->smXML:CharacterString"));

        setKeyWords(XMLTree.searchMultipleNodeValue(node,

                "iso19115:identificationInfo->smXML:MD_DataIdentification->smXML:descriptiveKeywords->smXML:MD_Keywords->smXML:keyword->smXML:CharacterString"));

        setResources(getResources("iso19115:distributionInfo->smXML:distributor->smXML:distributorTransferOptions->smXML:onLine"));

        setImage(getImageUrl("iso19115:identificationInfo->smXML:MD_DataIdentification->smXMLgraphicOverview->fileName"));

    }

    /**

     * It parses the online resources

     * @param label

     * Label that contains the resource root

     * @return

     * Resource

     */

    private Resource[] getResources(String label) {

        XMLNode[] nodes = XMLTree.searchMultipleNode(getNode(), label);

        if (nodes == null) {

            return null;

        }

        Resource[] resources = new Resource[nodes.length];

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

            resources[i] = new Resource(XMLTree.searchNodeValue(nodes[i],

                        "linkage"),

                    "www:link",

                    "orName",

                    "orDesc",

                    "",

                           "",        

                            null);

        return resources;

    }

    /**

     * This method finds an image from an URL and returns it

     * @param label

     * XML Label where the image link is.

     * @return

     */

    private BufferedImage getImageUrl(String label) {

        BufferedImage img;

        XMLNode[] nodes = XMLTree.searchMultipleNode(getNode(), label);

        if ((nodes == null) || (nodes.length == 0)) {

            return null;

        }

        img = getImage("http://delta.icc.es/wefex/images/" + nodes[0].getText() );

        if (img != null)

            return img;

        File fichero = new File("images/IcoRecord.png");

        try {

            return ImageIO.read(fichero);

        } catch (IOException e2) {

            // TODO Auto-generated catch block

            System.out.println("No he podido leer la imagen desde el fichero");

            return null;

        }

    }

    /**

     * It gets an image from a URL

     * @param sUrl

     * String with the image URL

     * @return

     */

    private BufferedImage getImage(String sUrl){

        try {

            URL Url = new URL(sUrl);

            return ImageIO.read(Url);

        } catch (MalformedURLException e) {

            // TODO Auto-generated catch block

            System.out.println("La URL de la imagen no es correcta: " + sUrl);

        } catch (IOException e1) {

            // TODO Auto-generated catch block

            System.out.println("No he podido leer la imagen desde la URL: " + sUrl);

        }

        return null;

    }

}