Package org.h2.compress

Examples of org.h2.compress.LZFOutputStream

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    private void testLZFStreamClose() throws IOException {
        String fileName = getBaseDir() + "/temp";
        IOUtils.createDirs(fileName);
        OutputStream fo = IOUtils.openFileOutputStream(fileName, false);
        LZFOutputStream out = new LZFOutputStream(fo);
        out.write("Hello".getBytes());
        out.close();
        InputStream fi = IOUtils.openFileInputStream(fileName);
        LZFInputStream in = new LZFInputStream(fi);
        byte[] buff = new byte[100];
        assertEquals(5, in.read(buff));
        in.read();
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        Random random = new Random(1);
        int max = getSize(100, 1000);
        for (int i = 0; i < max; i += 3) {
            byte[] buffer = getRandomBytes(random);
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            LZFOutputStream comp = new LZFOutputStream(out);
            if (random.nextInt(10) == 1) {
                comp.write(buffer);
            } else {
                for (int j = 0; j < buffer.length;) {
                    int[] sizes = { 0, 1, random.nextInt(100), random.nextInt(100000) };
                    int size = sizes[random.nextInt(sizes.length)];
                    size = Math.min(size, buffer.length - j);
                    if (size == 1) {
                        comp.write(buffer[j]);
                    } else {
                        comp.write(buffer, j, size);
                    }
                    j += size;
                }
            }
            comp.close();
            byte[] compressed = out.toByteArray();
            ByteArrayInputStream in = new ByteArrayInputStream(compressed);
            LZFInputStream decompress = new LZFInputStream(in);
            byte[] test = new byte[buffer.length];
            for (int j = 0; j < buffer.length;) {
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                z.putNextEntry(new ZipEntry(entryName));
                out = z;
            } else if ("DEFLATE".equals(compressionAlgorithm)) {
                out = new DeflaterOutputStream(out);
            } else if ("LZF".equals(compressionAlgorithm)) {
                out = new LZFOutputStream(out);
            } else if (compressionAlgorithm != null) {
                throw DbException.get(ErrorCode.UNSUPPORTED_COMPRESSION_ALGORITHM_1, compressionAlgorithm);
            }
            return out;
        } catch (IOException e) {
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                z.putNextEntry(new ZipEntry(entryName));
                out = z;
            } else if ("DEFLATE".equals(compressionAlgorithm)) {
                out = new DeflaterOutputStream(out);
            } else if ("LZF".equals(compressionAlgorithm)) {
                out = new LZFOutputStream(out);
            } else if (compressionAlgorithm != null) {
                throw DbException.get(ErrorCode.UNSUPPORTED_COMPRESSION_ALGORITHM_1, compressionAlgorithm);
            }
            return out;
        } catch (IOException e) {
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        testReadOnly();
        testAdapter();
    }

    private static void testAdapter() {
        TraceSystem ts = new TraceSystem(null);
        ts.setLevelFile(TraceSystem.ADAPTER);
        ts.getTrace("test").info("test");
        ts.close();
    }
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        ts.getTrace("test").info("test");
        ts.close();
    }

    private void testTraceDebug() {
        TraceSystem ts = new TraceSystem(null);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ts.setSysOut(new PrintStream(out));
        ts.setLevelSystemOut(TraceSystem.DEBUG);
        ts.getTrace("test").debug(new Exception("error"), "test");
        ts.close();
        String outString = new String(out.toByteArray());
        assertContains(outString, "error");
        assertContains(outString, "Exception");
        assertContains(outString, "test");
    }
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    private void testReadOnly() throws Exception {
        String readOnlyFile = getBaseDir() + "/readOnly.log";
        IOUtils.delete(readOnlyFile);
        IOUtils.openFileOutputStream(readOnlyFile, false).close();
        FileSystem.getInstance(getBaseDir()).setReadOnly(readOnlyFile);
        TraceSystem ts = new TraceSystem(readOnlyFile);
        ts.setLevelFile(TraceSystem.INFO);
        ts.getTrace("test").info("test");
        IOUtils.delete(readOnlyFile);
        ts.close();
    }
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    private void testFutureModificationDate() throws Exception {
        File f = new File(getFile());
        f.delete();
        f.createNewFile();
        f.setLastModified(System.currentTimeMillis() + 10000);
        FileLock lock = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }
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        lock.lock(FileLock.LOCK_FILE);
        lock.unlock();
    }

    private void testSimple() {
        FileLock lock1 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        FileLock lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock1.lock(FileLock.LOCK_FILE);
        createClassProxy(FileLock.class);
        assertThrows(ErrorCode.DATABASE_ALREADY_OPEN_1, lock2).
                lock(FileLock.LOCK_FILE);
        lock1.unlock();
        lock2 = new FileLock(new TraceSystem(null), getFile(), Constants.LOCK_SLEEP);
        lock2.lock(FileLock.LOCK_FILE);
        lock2.unlock();
    }
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    }

    public void run() {
        FileLock lock = null;
        while (!stop) {
            lock = new FileLock(new TraceSystem(null), getFile(), 100);
            try {
                lock.lock(allowSockets ? FileLock.LOCK_SOCKET : FileLock.LOCK_FILE);
                base.trace(lock + " locked");
                locks++;
                if (locks > 1) {
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