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.

 */

package org.gvsig.raster.dataset;

import junit.framework.TestCase;

import org.gvsig.raster.RasterLibrary;

import org.gvsig.raster.dataset.io.rmf.ParsingException;

import org.gvsig.raster.dataset.properties.DatasetHistogram;

import org.gvsig.raster.datastruct.Histogram;

import org.gvsig.raster.datastruct.serializer.HistogramRmfSerializer;

/**

 * Test para comprobar la construcci?n de un histograma desde un XML. Este test calcula el histograma

 * de un raster y lo convierte a XML. Despu?s crear? un objeto Histogram a partir del XML. Finalmente

 * se comparar? el Histograma original con el final.

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class TestHistogramSerializer extends TestCase {

        private String baseDir = "./test-images/";

        private String path = baseDir + "miniraster30x30.jp2";

        private RasterDataset f = null;

        static {

                RasterLibrary.wakeUp();

        }

        public void start() {

                this.setUp();

                this.testStack();

        }

        public void setUp() {

                System.err.println("TestHistogramSerializer running...");

                int[] drawableBands = {0, 1, 2};

                try {

                        f = RasterDataset.open(null, path);

                } catch (NotSupportedExtensionException e) {

                        e.printStackTrace();

                        return;

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                        return;

                }

        }

        public void testStack() {

                DatasetHistogram dsh = f.getHistogram();

                Histogram hist1 = null;

                try {

                        hist1 = dsh.getHistogram();

                } catch (FileNotOpenException e) {

                        e.printStackTrace();

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                }

                HistogramRmfSerializer serial1 = new HistogramRmfSerializer(hist1);

                String s = serial1.write();

                //System.out.println(s);

                HistogramRmfSerializer serial2 = new HistogramRmfSerializer();

                try {

                        serial2.read(s);

                } catch (ParsingException e) {

                        e.printStackTrace();

                }

                Histogram hist2 = (Histogram)serial2.getResult();

                assertEquals(hist1.getNumBands(), hist2.getNumBands());

                for (int iBand = 0; iBand < hist1.getNumBands(); iBand++) {

                        for(int i = 0; i < hist1.getNumValues(); i++)

                                assertEquals((long)hist1.getHistogramValue(iBand, i), (long)hist2.getHistogramValue(iBand, i));

                }

        }

}