Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.cache.buffer.impl.stripecache.horizontal;

import java.io.IOException;

import junit.framework.TestCase;

import org.gvsig.jgdal.GdalException;

import org.gvsig.raster.cache.buffer.Buffer;

import org.gvsig.raster.cache.buffer.exception.OperationNotSupportedException;

import org.gvsig.raster.cache.buffer.impl.BufferCacheManagerImpl;

import org.gvsig.raster.cache.buffer.impl.io.GdalRead;

/**

 * Performance Test

 * Time 9.3 - 10 seg 

 * REPEAT = 10

 * Intel(R) Core(TM)2 CPU E8400  @ 3.00GHz

 * 2GB RAM DDR3 1066

 * HDD ATA 133

 * Linux Ubuntu 8.04 kernel 2.6.24

 * 

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

 */

public class TestCachePerformance extends TestCase {

        private String rasterIn = "./src/test/resources/image/001m09_1_0.tif";

        private static int REPEAT = 10;

        public int aux = 0;

        public void start() {

                this.setUp();

                this.testStack();

        }

        public void setUp() {

                System.err.println("StripeCache TestCachePerformance running...");

        }

        public void testStack() {

                long t1 = System.currentTimeMillis();

                GdalRead input = null;

                try {

                        //Reducimos el tama?o de la cache para una prueba con menos datos

                        BufferCacheManagerImpl.cacheSize = 2;

                        BufferCacheManagerImpl.pageSize = 0.2;

                        for (int iTimes = 0; iTimes < REPEAT; iTimes++) {

                                //Read input data

                                input = new GdalRead(rasterIn);

                                Object dataIn = input.readBlock(0, 0, input.getWidth(), input.getHeight());

                                //Create Buffer

                                Buffer buf1 = new RasterCacheBuffer(input.getRasterBufTypeFromGdalType(input.getDataType()), 

                                                input.getWidth(), 

                                                input.getHeight(),

                                                input.getBandCount());

                                //Set data to buffer

                                setLines(dataIn, buf1);

                                for (int iBand = 0; iBand < buf1.getBandCount(); iBand++) {

                                        for (int i = 0; i < buf1.getHeight(); i++) {

                                                for (int j = 0; j < buf1.getWidth(); j++) {

                                                        byte b1 = buf1.getElemByte(i, j, iBand);

                                                        byte b2 = buf1.getElemByte(i, j, iBand);

                                                        aux = b1 * b2;

                                                }

                                        }

                                }

                                buf1.free();

                        }

                } catch (GdalException e) {

                        e.printStackTrace();

                } catch (IOException e) {

                        e.printStackTrace();

                } catch (InterruptedException e) {

                        e.printStackTrace();

                } catch (OperationNotSupportedException e) {

                        e.printStackTrace();

                }

                long t2 = System.currentTimeMillis();

                System.out.println("Tiempo StripeCache TestCachePerformance: " + (t2 - t1) + " milisegundos");

        }

        private void setLines(Object dataIn, Buffer buf) throws OperationNotSupportedException {

                if(dataIn instanceof byte[][][]) {

                    byte[][][] d = (byte[][][])dataIn;

                    for (int iBand = 0; iBand < d.length; iBand++) {

                                for (int row = 0; row < d[iBand].length; row++) {

                                        buf.setLineInBandByte(d[iBand][row], row, iBand);

                                }

                        }

            }

        }

}