Examples with TttdChunker org.syncany.chunk.TttdChunker used on opensource projects

Example 1 with TttdChunker

use of org.syncany.chunk.TttdChunker in project syncany by syncany.

the class FrameworkCombinationTest method fillCombinations.

private void fillCombinations() throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException {
    // MultiChunks
    List<MultiChunker> multiChunkers = new LinkedList<MultiChunker>();
    int[] multiChunkSizes = new int[] { 250000, 500000 };
    for (int i = 0; i < multiChunkSizes.length; i++) {
        // multiChunkers.add(new CustomMultiChunker(multiChunkSizes[i]));
        multiChunkers.add(new ZipMultiChunker(multiChunkSizes[i]));
    }
    // Chunks
    List<Chunker> chunkers = new LinkedList<Chunker>();
    int[] chunkSizes = new int[] { 8000, 16000 };
    String[] digestAlgs = new String[] { /*"MD5" ,*/
    "SHA1" };
    String[] fingerprinters = new String[] { "Adler32" /*, "Plain", "Rabin"*/
    };
    for (int i = 0; i < chunkSizes.length; i++) {
        for (int j = 0; j < digestAlgs.length; j++) {
            for (int k = 0; k < fingerprinters.length; k++) {
                chunkers.add(new TttdChunker(chunkSizes[i], TttdChunker.DEFAULT_WINDOW_SIZE, digestAlgs[j], fingerprinters[k]));
            }
        }
    }
    // Compression/Encryption
    List<CipherSpec> cipherSpecs = new ArrayList<CipherSpec>();
    cipherSpecs.add(CipherSpecs.getCipherSpec(1));
    cipherSpecs.add(CipherSpecs.getCipherSpec(2));
    List<Transformer> transformerChains = new LinkedList<Transformer>();
    transformerChains.add(new NoTransformer());
    transformerChains.add(new GzipTransformer());
    transformerChains.add(new CipherTransformer(cipherSpecs, masterKey));
    transformerChains.add(new GzipTransformer(new CipherTransformer(cipherSpecs, masterKey)));
    for (MultiChunker multiChunker : multiChunkers) {
        for (Transformer transformer : transformerChains) {
            for (Chunker chunker : chunkers) {
                String configName = multiChunker + "/" + chunker + "/" + transformer;
                combinations.add(new FrameworkCombination(configName, chunker, multiChunker, transformer));
            }
        }
    }
}

Example 2 with TttdChunker

use of org.syncany.chunk.TttdChunker in project syncany by syncany.

the class TTTDChunkerTest method testNextChunkEvenIfThereAreNone.

@Test
public void testNextChunkEvenIfThereAreNone() throws IOException {
    // Test Constants
    final int TOTAL_FILE_SIZE = 5 * 1024;
    final int CHUNK_SIZE = 512 * 1024;
    // Setup
    File inputFile = TestFileUtil.createRandomFileInDirectory(tempDir, TOTAL_FILE_SIZE);
    Chunker chunker = new TttdChunker(CHUNK_SIZE);
    // Create chunks
    Enumeration<Chunk> chunkEnumeration = chunker.createChunks(inputFile);
    while (chunkEnumeration.hasMoreElements()) {
        chunkEnumeration.nextElement();
    }
    // This should lead to an IOException
    assertNull("No chunk expected, but data received.", chunkEnumeration.nextElement());
    assertFalse("hasElements() should return 'false' if no chunk available.", chunkEnumeration.hasMoreElements());
}

Example 3 with TttdChunker

use of org.syncany.chunk.TttdChunker in project syncany by syncany.

the class TTTDChunkerTest method testStringSerialization.

@Test
public void testStringSerialization() {
    final int CHUNK_SIZE = 512 * 1024;
    Chunker chunker = new TttdChunker(CHUNK_SIZE);
    assertEquals("Other toString() result expected.", "TTTD-" + CHUNK_SIZE + "-" + TttdChunker.DEFAULT_DIGEST_ALG + "-" + TttdChunker.DEFAULT_FINGERPRINT_ALG, chunker.toString());
}

Example 4 with TttdChunker

use of org.syncany.chunk.TttdChunker in project syncany by syncany.

the class TTTDChunkerTest method testCreateChunksFrom5MBFileAndTestChunkSize.

@Test
public void testCreateChunksFrom5MBFileAndTestChunkSize() throws Exception {
    // Test Constants
    final int TOTAL_FILE_SIZE = 5 * 1024 * 1024;
    final int AVG_CHUNK_SIZE = 512 * 1024;
    // Setup
    File inputRandom5MBFile = TestFileUtil.createRandomFileInDirectory(tempDir, TOTAL_FILE_SIZE);
    File outputCopyOfRandom5MBFile = TestFileUtil.getRandomFilenameInDirectory(tempDir);
    FileOutputStream outputCopyOfRandom5MBFileOutputStream = new FileOutputStream(outputCopyOfRandom5MBFile);
    Chunker chunker = new TttdChunker(AVG_CHUNK_SIZE);
    // Create chunks
    Enumeration<Chunk> chunkEnumeration = chunker.createChunks(inputRandom5MBFile);
    Chunk lastChunk = null;
    while (chunkEnumeration.hasMoreElements()) {
        lastChunk = chunkEnumeration.nextElement();
        // Checksum
        assertNotNull("Chunk checksum should not be null.", lastChunk.getChecksum());
        outputCopyOfRandom5MBFileOutputStream.write(lastChunk.getContent(), 0, lastChunk.getSize());
    }
    outputCopyOfRandom5MBFileOutputStream.close();
    // Number of chunks
    // TODO [low] How to test the number of chunks?
    // Checksums
    byte[] inputFileChecksum = FileUtil.createChecksum(inputRandom5MBFile, TttdChunker.DEFAULT_DIGEST_ALG);
    byte[] outputFileChecksum = FileUtil.createChecksum(outputCopyOfRandom5MBFile, TttdChunker.DEFAULT_DIGEST_ALG);
    assertArrayEquals("Checksums of input and output file do not match.", inputFileChecksum, outputFileChecksum);
    assertArrayEquals("Last chunk's getFileChecksum() should be the file checksum.", inputFileChecksum, lastChunk.getFileChecksum());
}