Application: gvSIG desktop

package org.gvsig.gpe.writers;

import java.io.File;

import java.io.IOException;

import junit.framework.TestCase;

import org.gvsig.gpe.GPEErrorHandler;

import org.gvsig.gpe.GPEErrorHandlerTest;

/* 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

 */

/* CVS MESSAGES:

 *

 * $Id$

 * $Log$

 * Revision 1.1  2007-04-13 07:17:54  jorpiell

 * Add the writting tests for the simple geometries

 *

 *

 */

/**

 * This class must be implementend by all the classes that

 * implements a GPE writer Parser. It creates a writer, write some

 * features and then uses a reader to compare the writting

 * process

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

public abstract class GPEWriterBaseTest extends TestCase{

        private GPEWriterHandler handler = null;

        private File fileTemp = new File("testdata/tmp/filetemp");

        /**

         * Creates the writer

         */

        public void setUp(){

                try {

                        handler = getWriter(fileTemp, new GPEErrorHandlerTest());

                } catch (IOException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

        /**

         * Delete the file

         */

        public void tearDown(){

                //fileTemp.delete();

        }

        /**

         * This test writes some objects into the file and then

         * try to read the created file. It compare that the written

         * objects are the same that the read them

         */

        public void testWriter(){

                writeObjects();

                readObjects();

        }

        /**

         * This method write somo objects into the writer handler

         */

        public abstract void writeObjects();

        /**

         * It read the objects and make all the comparations

         *

         */

        public abstract void readObjects();

        /**

         * It creates a writer handler.

         * @param file

         * @param errorHandler

         * @return

         */

        public abstract GPEWriterHandler getWriter(File file,GPEErrorHandler errorHandler) throws IOException;

        /**

         * It creates a Random bbox coordinates. It return

         * 10 coordinates

         * @return

         */

        protected double[] generateRandomCoordinates(){

                return generateRandomCoordinates(10);

        }

        /**

         * It creates a Random bbox coordinates

         * @param length

         * The number of coordinates

         * @return

         */

        protected double[] generateRandomCoordinates(int length){

                double[] coord = new double[length];

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

                        coord[i] = Math.random();

                }

                return coord;

        }

        /**

         * It creates a Random linear ring. It return

         * 10 coordinates

         * @return

         */

        protected double[] generateRandomLinearRing(){

                return generateRandomLinearRing(10);

        }

        /**

         * It creates a random linear ring

         * @param length

         * @return

         */

        protected double[] generateRandomLinearRing(int length){

                double[] coord = new double[length];

                for (int i=0 ; i<coord.length-1 ; i++){

                        coord[i] = Math.random();

                }

                coord[length-1] = coord[0];

                return coord;

        }

        /**

         * It creates a Random bbox coordinates

         * @return

         */

        protected double[] generateRandomBBox(){

                double[] coord = new double[2];

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

                        coord[i] = Math.random();

                }

                return coord;

        }

        /**

         * @return the handler

         */

        public GPEWriterHandler getHandler() {

                return handler;

        }

}