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.z3950;

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;

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

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;

/**

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

 */

public class Z3959RecordsParser extends AbstractTags {

/**

 * Constructor

 * @param node

 * Node with the answer

 * @param serverURL

 * Server URL. Necessary to load the image (just Geonetwork)

 * 

 */

    public Z3959RecordsParser(XMLNode node,URL serverURL) {

        setNode(node);

        setTitle(XMLTree.searchNodeValue(node,

                "dataIdInfo->idCitation->resTitle"));

        setAbstract_(XMLTree.searchNodeValue(node, "dataIdInfo->idAbs"));

        setPurpose(XMLTree.searchNodeValue(node, "dataIdInfo->idPurp"));

        setKeyWords(XMLTree.searchMultipleNodeValue(node,

                "dataIdInfo->descKeys->keyword"));

        setResources(getResources("distInfo->distTranOps->onLineSrc"));

        setFileID(XMLTree.searchNodeValue(node,"mdFileID"));

        setServerURL(serverURL);

        //Caution: getImageUrl uses serverURL and FileID!!!

        setImage(getImageUrl("dataIdInfo->graphOver"));

   }

    private Resource[] getResources(String label) {

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

        Coordinates coordinates = null;

        String srs = null;

        if (nodes == null) {

            return null;

        }

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

        if (nodes.length > 0){

                srs = XMLTree.searchNodeValue(getNode(),"refSysInfo->MdCoRefSys->refSysID->identCode");

                coordinates = new Coordinates(XMLTree.searchNodeValue(getNode(),"dataIdInfo->geoBox->westBL"),

                                XMLTree.searchNodeValue(getNode(),"dataIdInfo->geoBox->northBL"),

                                        XMLTree.searchNodeValue(getNode(),"dataIdInfo->geoBox->eastBL"),

                                        XMLTree.searchNodeValue(getNode(),"dataIdInfo->geoBox->southBL"));

        }

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

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

                        "linkage"),

                    XMLTree.searchNodeValue(nodes[i], "protocol"),

                    XMLTree.searchNodeValue(nodes[i], "orName"),

                    XMLTree.searchNodeValue(nodes[i], "orDesc"),

                    XMLTree.searchNodeAtribute(nodes[i], "orFunct->OnFunctCd",

                        "value"),

                                        srs,        

                            coordinates);

        return resources;

    }

    private BufferedImage getImageUrl(String label) {

        URL Url;

        BufferedImage img;

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

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

            return null;

        }

        //Normal Procedure

        String imageURL = XMLTree.searchNodeValue(nodes[0], "bgFileName");

        img = getImage(imageURL);

        if (img != null)

            return img;

        //Is it Geonetwork running in port  8080?

        String sUrl = getGeonetworkImageUrl(imageURL,"8080");              

        img = getImage(sUrl);

        if (img != null)

            return img;

        //It is Geonetwork running in port 80?

        sUrl = getGeonetworkImageUrl(imageURL,"80");   

        img = getImage(sUrl);

        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;

        }

    }

    private String getGeonetworkImageUrl(String imageUrl,String port){

        return "http://" + getServerURL().getHost() + ":" + port + "/geonetwork/srv/es/resources.getgraphover?" +

            "id=" + getFileID() + "&" +

            "fname=" + imageUrl;

    }

    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;

    }

}