Application: gvSIG desktop » gvSIG projections

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.crs;

import java.io.File;

import java.util.Arrays;

import java.util.Iterator;

import org.cresques.ProjectionLibrary;

import org.geotools.factory.FactoryRegistry;

import org.geotools.referencing.operation.MathTransformProvider;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.fmap.crs.CRSFactory;

import org.gvsig.tools.library.AbstractLibrary;

import org.gvsig.tools.library.LibraryException;

/**

 * @author gvSIG Team

 * @version $Id$

 *

 */

public class JCRSLibrary extends AbstractLibrary {

    @Override

    public void doRegistration() {

        registerAsImplementationOf(ProjectionLibrary.class, 10);

    }

    @Override

    protected void doInitialize() throws LibraryException {

//            cleanGeotoolsDatabase();

            initializeGeotoolsProviders();

        CRSFactory.cp = new CrsFactory();

    }

    @Override

    protected void doPostInitialize() throws LibraryException {

        // nothing to do 

    }

    //Hemos cambiado el jar de epsg-hsql y tal vez esto ya no sea necesario

//        private void cleanGeotoolsDatabase(){

//        

//                // Parche para limpiar los archivos temporales de la base de datos cacheada de EPSG cuando ha podido quedar corrupta 

//                String tempFolder =  System.getProperty("java.io.tmpdir") ;

//        String pathSeparator = System.getProperty("file.separator") ;

//        String cachedDatabasesDir = tempFolder+pathSeparator+"Geotools"+pathSeparator+"Cached databases";

//        

//        File fileProperties = new File(cachedDatabasesDir+pathSeparator+"EPSG.properties");

//        File fileScript = new File(cachedDatabasesDir+pathSeparator+"EPSG.script");

//        File fileData = new File(cachedDatabasesDir+pathSeparator+"EPSG.data");

//        

//        boolean canDelete = true;

//        if ((fileProperties.exists() || fileScript.exists()) && !fileData.exists()){

//                File cachedDatabasesDirFile = new File(cachedDatabasesDir);

//                String[] fileNames = cachedDatabasesDirFile.list();

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

//                                File file = new File(cachedDatabasesDir+pathSeparator+fileNames[i]);

//                                canDelete &= file.delete();

//                        }

//                if (!canDelete){

//                        NotificationManager.showMessageWarning("La base de datos de EPSG ha quedado corrupta, por favor salga de la aplicaci?n y borre manualmente el directorio "+cachedDatabasesDir, null);

//                }

//        }

//        // Fin del parche

//        

//        /* Parche para prevenir una posible corrupci?n de la base de datos de EPSG que se

//         * produce en windows al tener m?s de una instancia de gvSIG abierta. 

//         */

//        if (fileProperties.exists()){

//                if (!fileProperties.delete()){

//                        NotificationManager.showMessageWarning("La base de datos de EPSG ha podido quedar corrupta, por favor salga de la aplicaci?n y borre manualmente el directorio "+cachedDatabasesDir, null);

//                }

//        }

//        // Fin del parche

//            

//

//        }

        private void initializeGeotoolsProviders(){

                /*

                 * Se eliminan del registro de geotools las proyecciones que aporta libJCrs para asegurar que

                 * son estas ?ltimas las que se utilizan.

                 */

                final Class[] categories = {org.geotools.referencing.operation.MathTransformProvider.class};

                FactoryRegistry registry = new FactoryRegistry(Arrays.asList(categories));

                Iterator providers = registry.getServiceProviders(MathTransformProvider.class);

                Iterator providers2 = null;

                MathTransformProvider provider = null;

                MathTransformProvider provider2 = null;

                while (providers.hasNext()){

                        provider = (MathTransformProvider) providers.next();

                        if(provider.nameMatches("IDR")){

                                providers2 = registry.getServiceProviders(MathTransformProvider.class);

                                while (providers2.hasNext()){

                                        provider2 = (MathTransformProvider) providers2.next();

                                        if(provider2.nameMatches(provider.getName().toString()) && !provider2.nameMatches("IDR")) {

                                                registry.deregisterServiceProvider(provider2, categories[0]);

                                        }

                                }

                        }

                }

                //TODO: Solo para depurar: BORRAR

                providers = registry.getServiceProviders(MathTransformProvider.class);

                while (providers.hasNext()) {

            provider = (MathTransformProvider) providers.next();

            System.out.println(provider.toString());

                }

                /*

                 *

                 */

        }

}