--- /dev/null
+/*******************************************************************************\r
+t * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.fastlz;
+
+import static org.junit.Assert.fail;\r
+\r
+import java.io.BufferedInputStream;\r
+import java.io.BufferedOutputStream;\r
+import java.io.File;\r
+import java.io.FileInputStream;\r
+import java.io.FileOutputStream;\r
+import java.io.IOException;\r
+import java.io.InputStream;\r
+import java.io.OutputStream;\r
+import java.util.Arrays;\r
+\r
+import junit.framework.Assert;\r
+\r
+import org.junit.BeforeClass;\r
+import org.junit.Test;\r
+
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+@SuppressWarnings("deprecation")\r
+public class FastLZBasicTests {\r
+\r
+ static File testData1;\r
+ static File testData2;\r
+ static File testDataPrime;\r
+\r
+ @BeforeClass\r
+ public static void initialize() throws IOException {\r
+ FastLZ.initialize(null);\r
+\r
+ testData1 = new File("uncompressed.data");\r
+ writeTestData(testData1, 10000000);\r
+ testData2 = new File("uncompressed-small.data");\r
+ writeTestData(testData2, 100000);\r
+ testDataPrime = new File("uncompressed-prime.data");\r
+ writeTestData(testDataPrime, 1000);\r
+\r
+ System.out.println("test data directory: " + testData1.getAbsolutePath());\r
+\r
+// File javaFlz = new File("compressed-prime.data.native.flz");\r
+// for (int i = 0; i < 100; ++i) {\r
+// compressFlzJava(testDataPrime, javaFlz);\r
+// }\r
+ }\r
+\r
+ @Test\r
+ public void validateCompress() throws IOException {\r
+ validateCompress(testData1);\r
+ validateCompress(new File("grades.snp"));\r
+ }\r
+\r
+ private void validateCompress(File testData) throws IOException {\r
+ System.out.println("==== validateCompress(" + testData.getName() + ") ====");\r
+\r
+ File nativeFlz = new File("compressed.data.native.flz");\r
+ long nativeCompressedSize = compressFlzNative(testData, nativeFlz);\r
+ System.out.println("native compressed size: " + nativeCompressedSize);\r
+\r
+ // Need to prime JVM JIT by performing multiple passes\r
+ File javaFlz = new File("compressed.data.java.flz");\r
+ long javaCompressedSize = compressFlzJava(testData, javaFlz);\r
+ System.out.println("java compressed size: " + javaCompressedSize);\r
+\r
+ Assert.assertEquals(nativeCompressedSize, javaCompressedSize);\r
+\r
+ System.out.println("Comparing compressed outputs...");\r
+ compareFiles(nativeFlz, javaFlz);\r
+ System.out.println("Compressed outputs match.");\r
+\r
+ File decompressedNativeFlz = new File("decompressed.data.native.flz");\r
+ File decompressedJavaFlz = new File("decompressed.data.java.flz");\r
+ decompressFlzNative(nativeFlz, decompressedNativeFlz);\r
+ decompressFlzNative(javaFlz, decompressedJavaFlz);\r
+ compareFiles(decompressedJavaFlz, decompressedNativeFlz);\r
+ compareFiles(decompressedNativeFlz, testData);\r
+ }\r
+\r
+// @Test\r
+// public void validateCompressSmall() throws IOException {\r
+// File nativeFlz = new File("compressed-small.data.native.flz");\r
+// long nativeCompressedSize = compressFlzNative(testData2, nativeFlz);\r
+// System.out.println("native compressed size: " + nativeCompressedSize);\r
+//\r
+// // Need to prime JVM JIT by performing multiple passes\r
+// File javaFlz = new File("compressed-small.data.java.flz");\r
+// long javaCompressedSize = compressFlzJava(testData2, javaFlz);\r
+// System.out.println("java compressed size: " + javaCompressedSize);\r
+//\r
+// Assert.assertEquals(nativeCompressedSize, javaCompressedSize);\r
+//\r
+// System.out.println("Comparing compressed outputs...");\r
+// compareFiles(nativeFlz, javaFlz);\r
+// System.out.println("Compressed outputs match.");\r
+// }\r
+\r
+// @Test\r
+// public void testNativeCompressPerformance() throws IOException {\r
+// File javaFlz = new File("compressed.data.native.flz");\r
+// for (int i = 0; i < 5; ++i) {\r
+// compressFlzNative(testData1, javaFlz);\r
+// }\r
+// }\r
+//\r
+// @Test\r
+// public void testJavaCompressPerformance() throws IOException {\r
+// // Need to prime JVM JIT by performing multiple passes\r
+// File javaFlz = new File("compressed.data.java.flz");\r
+// for (int i = 0; i < 5; ++i) {\r
+// compressFlzJava(testData1, javaFlz);\r
+// }\r
+// }\r
+\r
+// @Test\r
+// public void testCompressNative() throws IOException {\r
+// File flz = new File("compressed.data.native.flz");\r
+// for (int i = 0; i < 5; ++i) {\r
+// long compressedSize = compressFlzNative(testData1, flz);\r
+// System.out.println("native compressed size: " + compressedSize);\r
+// }\r
+// }\r
+//\r
+// @Test\r
+// public void testCompressionJava() throws IOException {\r
+// // Need to prime JVM JIT by performing multiple passes\r
+// File flz = new File("compressed.data.java.flz");\r
+// for (int i = 0; i < 5; ++i) {\r
+// long compressedSize = compressFlzJava(testData1, flz);\r
+// System.out.println("java compressed size: " + compressedSize);\r
+// }\r
+// }\r
+\r
+ @SuppressWarnings("unused")\r
+ @Test\r
+ public void testDecompress() throws IOException {\r
+ File nativeFlz = new File("compressed.data.native.flz");\r
+ long nativeCompressedSize = compressFlzNative(testData1, nativeFlz);\r
+ System.out.println("native compressed size: " + nativeCompressedSize);\r
+\r
+ // Need to prime JVM JIT by performing multiple passes\r
+ File javaFlz = new File("compressed.data.java.flz");\r
+ long javaCompressedSize = compressFlzJava(testData1, javaFlz);\r
+ System.out.println("java compressed size: " + javaCompressedSize);\r
+\r
+ Assert.assertEquals(nativeCompressedSize, javaCompressedSize);\r
+\r
+ System.out.println("Comparing compressed outputs...");\r
+ compareFiles(nativeFlz, javaFlz);\r
+ System.out.println("Compressed outputs match.");\r
+\r
+ File java1 = new File("java-compressed.data.decompressed-with-native");\r
+ long nativeDecompressedSize = decompressFlzNative(javaFlz, java1);\r
+ System.out.println("Comparing native-decompressed output...");\r
+ compareFiles(testData1, java1);\r
+ System.out.println("Native-decompressed output matches original.");\r
+\r
+ File java2 = new File("java-compressed.data.decompressed-with-java");\r
+ long javaDecompressedSize = decompressFlzJava(javaFlz, java2);\r
+ System.out.println("Comparing java-decompressed output...");\r
+ compareFiles(testData1, java2);\r
+ System.out.println("Java-decompressed output matches original.");\r
+\r
+ for (int i = 0; i < 5; ++i)\r
+ decompressFlz(javaFlz, FastLZ.read(javaFlz), java1, NullOutputStream.INSTANCE);\r
+ for (int i = 0; i < 5; ++i)\r
+ decompressFlz(javaFlz, FastLZJava.read(javaFlz), java2, NullOutputStream.INSTANCE);\r
+ }\r
+\r
+ @Test
+ public void testDecompressCluster() {
+ fail("Not yet implemented");
+ }
+\r
+ static void compareFiles(File file1, File file2) throws IOException {\r
+ InputStream in1 = new BufferedInputStream(new FileInputStream(file1));\r
+ InputStream in2 = new BufferedInputStream(new FileInputStream(file2));\r
+ try {\r
+ int offset = 0;\r
+ while (true) {\r
+ int b1 = in1.read();\r
+ int b2 = in2.read();\r
+ if (b1 == -1 && b2 == -1)\r
+ return;\r
+ if (b1 == -1)\r
+ fail("EOF reached in file1 " + file1.getName() + " but not in file2 " + file2.getName());\r
+ if (b2 == -1)\r
+ fail("EOF reached in file1 " + file1.getName() + " but not in file2 " + file2.getName());\r
+ if (b1 != b2)\r
+ fail("bytes at offset " + offset + " do not match: " + b1 + " vs. " + b2);\r
+ ++offset;\r
+ }\r
+ } finally {\r
+ in1.close();\r
+ in2.close();\r
+ }\r
+ }\r
+\r
+ public static void writeTestData(File file, int rows) throws IOException {\r
+ if (file.exists())\r
+ return;\r
+\r
+ System.out.println("writing test data...");\r
+ OutputStream stream = new FileOutputStream(file);\r
+ for (int i = 0; i < rows; ++i)\r
+ stream.write((Integer.toString(i) + "\n").getBytes());\r
+ stream.close();\r
+ System.out.println("wrote " + file.length() + " bytes of test data.");\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long compressFlzJava(File source, File flz) throws IOException {\r
+ return compressFlz(source, flz, FastLZJava.write(flz));\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long compressFlzNative(File source, File flz) throws IOException {\r
+ return compressFlz(source, flz, FastLZ.write(flz));\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long compressFlz(File source, File flz, OutputStream flzOutput) throws IOException {\r
+ System.out.println("compressFlz(" + source + ", " + flz + ")");\r
+ InputStream input = new BufferedInputStream(new FileInputStream(source));\r
+ copy(input, flzOutput);\r
+ input.close();\r
+ flzOutput.close();\r
+ long compressed = flz.length();\r
+ System.out.println("Wrote " + compressed + " compressed bytes");\r
+ return compressed;\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long decompressFlzJava(File flz, File dest) throws IOException {\r
+ return decompressFlz(flz, FastLZJava.read(flz), dest);\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long decompressFlzNative(File flz, File dest) throws IOException {\r
+ return decompressFlz(flz, FastLZ.read(flz), dest);\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long decompressFlz(File source, InputStream flzInput, File dest) throws IOException {\r
+ System.out.println("decompressFlz(" + source + ", " + dest + ")");\r
+ OutputStream output = new BufferedOutputStream(new FileOutputStream(dest));\r
+ copy(flzInput, output);\r
+ flzInput.close();\r
+ output.close();\r
+ long decompressed = dest.length();\r
+ System.out.println("Wrote " + decompressed + " decompressed bytes");\r
+ return decompressed;\r
+ }\r
+\r
+ /**\r
+ * @param source\r
+ * @param flz\r
+ * @return compressed size in bytes\r
+ * @throws IOException\r
+ */\r
+ static long decompressFlz(File source, InputStream flzInput, File dest, OutputStream destStream) throws IOException {\r
+ System.out.println("decompressFlz(" + source + ", " + dest + ")");\r
+ copy(flzInput, destStream);\r
+ flzInput.close();\r
+ destStream.close();\r
+ long decompressed = dest.length();\r
+ System.out.println("Wrote " + decompressed + " decompressed bytes");\r
+ return decompressed;\r
+ }\r
+\r
+ /**\r
+ * Copy the content of the input stream into the output stream, using a temporary\r
+ * byte array buffer whose size is defined by {@link #IO_BUFFER_SIZE}.\r
+ *\r
+ * @param in The input stream to copy from.\r
+ * @param out The output stream to copy to.\r
+ *\r
+ * @throws IOException If any error occurs during the copy.\r
+ */\r
+ private static final int IO_BUFFER_SIZE = 128 * 1024;\r
+\r
+ public static long copy(InputStream in, OutputStream out) throws IOException {\r
+ byte[] b = new byte[IO_BUFFER_SIZE];\r
+ int read;\r
+ long total = 0;\r
+ long start = System.nanoTime();\r
+ while (true) {\r
+ read = in.read(b);\r
+ if (read < 0)\r
+ break;\r
+ total += read;\r
+ //System.out.println("read " + read + " bytes, " + total + " bytes in total");\r
+ out.write(b, 0, read);\r
+ }\r
+\r
+ long end = System.nanoTime();\r
+ double totalmb = total/(1024.0*1024.0);\r
+ double time = (end-start)*1e-9;\r
+ double rate = totalmb / time;\r
+ System.out.format("Transferred %d bytes (%.3f Mbytes) in %f seconds (%.3f MB/s)\n", total, totalmb, time, rate);\r
+\r
+ return total;\r
+ }\r
+\r
+ @SuppressWarnings("unused")\r
+ private boolean checksumsEqual(File f1, File f2) throws IOException {\r
+ byte[] s1 = ChecksumUtil.computeSum(f1);\r
+ byte[] s2 = ChecksumUtil.computeSum(f2);\r
+ return Arrays.equals(s1, s2);\r
+ }\r
+\r
+}
Code Review / simantics / platform.git / blobdiff