| gvSIG desktop 1

package org.gvsig.xmlschema.performance;

import java.io.File;

import junit.framework.TestCase;

/* 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: MemoryUsageTest.java 12175 2007-06-14 16:15:05Z jorpiell $

 * $Log$

 * Revision 1.1  2007-06-14 16:15:03  jorpiell

 * builds to create the jars generated and add the schema code to the libGPEProject

 *

 * Revision 1.1  2007/06/14 13:50:07  jorpiell

 * The schema jar name has been changed

 *

 * Revision 1.1  2007/05/30 12:25:48  jorpiell

 * Add the element collection

 *

 * Revision 1.1  2007/05/25 11:55:00  jorpiell

 * First update

 *

 *

 */

/**

 * This test parses some XSD files and calculates the

 * used memory for each of them. The parsing process

 * must to be implemented by the classes tha inherit

 * from this.

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

 */

public abstract class MemoryUsageTest extends TestCase {

        private static final int TIMES_TO_LOOP = 5;

        private static final float KB = 1024.0f;

        private static final float MB = 1048576.0f;

        private static final String SKB="KB";

        private static final String SMB="MB";

        private String file1 = "testdata/schemas/localidad.xsd";        

        private String file2 = "testdata/schemas/municipios.xsd";

        private String file3 = "testdata/schemas/WithSchemaLocationLink.xsd";

        private String file4 = "testdata/schemas/WFSDescribeFeatureType.xsd";

        private String file5 = "testdata/schemas/CityGML.xsd";

        public void test1() throws Exception{

                parseSchemaXTimes(file1);

        }

        public void test2() throws Exception{

                parseSchemaXTimes(file2);

        }

        public void test3() throws Exception{

                parseSchemaXTimes(file3);

        }

        public void test4() throws Exception{

                parseSchemaXTimes(file4);

        }

        public void test5() throws Exception{

                parseSchemaXTimes(file5);

        }

        /**

         * Parser the same XSD file the number of times 

         * specified by TIMES_TO_LOOP

         * @param file

         * XSD file to parse

         * @throws Exception 

         */

        private void parseSchemaXTimes(String file) throws Exception{

                float usedMemory = 0;

                float usedTime = 0;

                for (int i=0 ; i<TIMES_TO_LOOP ; i++){

                        usedMemory = usedMemory + parseSchemaMemory(file);

                        usedTime = usedTime + parseSchemaTime(file);

                }

                usedMemory = usedMemory / TIMES_TO_LOOP;

                usedTime = usedTime / TIMES_TO_LOOP;

                float divisor = (usedMemory<MB) ? KB : MB;

                String sufix = (usedMemory<MB) ? SKB : SMB;        

                usedMemory = usedMemory/divisor;                

                System.out.println(usedMemory + " " + sufix + " used to parse " + file + " wich size is " 

                                + new File(file).length()/KB + " KB in " + usedTime + " milis");

        }

        /**

         * Parses one schema and returns the used memory

         * @param file

         * XSD file

         * @return

         * The memory

         * @throws Exception 

         */

        public float parseSchemaMemory(String file) throws Exception{

                //Call the garbage collector

                Runtime.getRuntime().gc();

                float totalBefore = Runtime.getRuntime().totalMemory();

            float freeBefore = Runtime.getRuntime().freeMemory();

                //Parse the file

            parse(file);

                float freeAfter = Runtime.getRuntime().freeMemory();

                float totalAfter = Runtime.getRuntime().totalMemory();

                float usedMemory = (totalAfter - freeAfter) - (totalBefore - freeBefore);                         

                //Call the garbage collector

                Runtime.getRuntime().gc();

                return usedMemory;                

        }

        /**

         * Parses one schema and returns the used time

         * @param file

         * XSD file

         * @return

         * The memory

         * @throws Exception 

         */

        public long parseSchemaTime(String file) throws Exception{

                long t1 = System.currentTimeMillis();

                //Parse the file

            parse(file);

            long t2 = System.currentTimeMillis();

                return t2 - t1;                

        }

        /**

         * Parse the schema

         * @param file

         * XSD to parse

         * @throws Exception 

         */

        protected abstract void parse(String file) throws Exception;

}