Application: gvSIG desktop » gvSIG projections

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2006 Instituto de Desarrollo Regional 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.

 */

package org.gvsig.crs.persistence;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Iterator;

import java.util.List;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.andami.PluginsManager;

import org.gvsig.crs.JCrsExtension;

import org.gvsig.tools.dynobject.DynObject;

/**

 * This class is used to save a list of CRSs (using the

 * Andami persistence model).

 */

public class RecentCRSsPersistence {

    /**

     * Constructor

     */

    public RecentCRSsPersistence() {

    }

    /**

     * This method adds a CrsData using the Anadami

     * persistence model. If the Crs exists just actualizes

     * the type name and the wkt string.

     *

     * @param crs

     * CrsData

     */

    public void addCrsData(CrsData crs) {

        //Esto es para evitar introducir un crs con errores

        if(crs.getAuthority()==null || crs.getCode()==0){

            return;

        }

        List crss = this.getRecentsCrsDatas();

        boolean found = false;

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

            CrsData curcrs = (CrsData) crss.get(i);

            if ( crs.getAuthority().equals(curcrs.getAuthority()) && crs.getCode() == curcrs.getCode() ) {

                found = true;

                curcrs.setName(crs.getName());

                curcrs.setProperies(crs.getProperies());

                curcrs.updateLastAccess();

            }

        }

        if ( !found ) {

            if ( crss.size() < 20 ) { //L?mite de almacenamiento: 20 CRSs

                crss.add(crs);

            } else {

                Collections.sort(crss);

                crss.set(0, crs);

            }

        }

    }

    /**

     * This method returns an array of CrsData objects that

     * have been saved using the Andami persistence model.

     *

     * @return

     * CrsData[]

     */

    public CrsData[] getArrayOfCrsData() {

        List crss = this.getRecentsCrsDatas();

        Collections.sort(crss);

        CrsData[] x = (CrsData[]) crss.toArray(new CrsData[crss.size()]);

        return x;

    }

    private List getRecentsCrsDatas() {

        PluginsManager manager = PluginsLocator.getManager();

        PluginServices plugin = manager.getPlugin(JCrsExtension.class);

        DynObject properties = plugin.getPluginProperties();

        List crss = (List) properties.getDynValue("recentCRSs");

        if ( crss == null ) {

            crss = new ArrayList();

            properties.setDynValue("recentCRSs", crss);

        }

        //Para recuperarse de un posible error en los crs recientes persistidos

        for (Iterator iterator = crss.iterator(); iterator.hasNext();) {

            CrsData crs = (CrsData) iterator.next();

            if(crs.getAuthority()==null){

                iterator.remove();

            }

        }

        return crss;

    }

}