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 com.iver.cit.gvsig.fmap.edition;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.IRow;

import java.io.IOException;

import java.util.ArrayList;

import java.util.BitSet;

import java.util.HashMap;

import java.util.Iterator;

/**

 * Implementaci?n de prueba en memoria de ExpansionFile.

 *

 * @author Vicente Caballero Navarro

 */

public class MemoryExpansionFile implements ExpansionFile {

        ArrayList rows = new ArrayList();

        BitSet invalidRows = new BitSet();

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#addRow(IRow)

         */

        public int addRow(IRow row) throws IOException {

                IRowEdited edRow = new DefaultRowEdited(row,

                                IRowEdited.STATUS_ADDED);

                rows.add(edRow);

                return rows.size() - 1;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#modifyRow(int,

         *                 IRow)

         */

        public int modifyRow(int index, IRow row) throws IOException {

                if (invalidRows.get(index)) {

                        throw new RuntimeException(

                                "Se ha intentado modificar una geometr?a que ha sido borrada anteriormente");

                }

                invalidateRow(index);

                IRowEdited edRow = new DefaultRowEdited(row,

                                IRowEdited.STATUS_MODIFIED);

                rows.add(edRow);

                return rows.size() - 1;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#getRow(int)

         */

        public IRowEdited getRow(int index) throws IOException {

                if (invalidRows.get(index)) {

                        return null;

                }

                return (IRowEdited) rows.get(index);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#invalidateRow(int)

         */

        public void invalidateRow(int index) {

                invalidRows.set(index, true);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#compact()

         */

        public void compact(HashMap relations) {

                ArrayList geoAux = new ArrayList();

                Iterator iter = relations.keySet().iterator();

                HashMap aux = new HashMap();

                int n = 0;

                while (iter.hasNext()) {

                        Integer virtualIndex = (Integer) iter.next();

                        Integer expansionIndex = (Integer) relations.get(virtualIndex);

                        if (!invalidRows.get(expansionIndex.intValue())){

                                geoAux.add(rows.get(expansionIndex.intValue()));

                                aux.put(new Integer(n), new Integer(geoAux.size()-1));

                                n++;

                        }

                }

                invalidRows.clear();

                rows = geoAux;

                relations.clear();

                relations.putAll(aux);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#getRowCount()

         */

        public int getRowCount() {

                return rows.size() - invalidRows.cardinality();

        }

        public void deleteLastRow() {

                invalidRows.set(rows.size()-1,false);

                rows.remove(rows.size()-1);

        }

        public void open() throws IOException {

                // TODO Auto-generated method stub

        }

        public void close() throws IOException {

                // TODO Auto-generated method stub

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.edition.ExpansionFile#validateRow(int)

         */

        public void validateRow(int previousExpansionFileIndex) {

                invalidRows.set(previousExpansionFileIndex, false);

        }

}