Examples with Inflater java.util.zip.Inflater used on opensource projects

Example 71 with Inflater

use of java.util.zip.Inflater in project k-9 by k9mail.

the class ImapConnection method enableCompression.

private void enableCompression() throws IOException, MessagingException {
    try {
        executeSimpleCommand(Commands.COMPRESS_DEFLATE);
    } catch (NegativeImapResponseException e) {
        Log.d(LOG_TAG, "Unable to negotiate compression: " + e.getMessage());
        return;
    }
    try {
        InflaterInputStream input = new InflaterInputStream(socket.getInputStream(), new Inflater(true));
        ZOutputStream output = new ZOutputStream(socket.getOutputStream(), JZlib.Z_BEST_SPEED, true);
        output.setFlushMode(JZlib.Z_PARTIAL_FLUSH);
        setUpStreamsAndParser(input, output);
        if (K9MailLib.isDebug()) {
            Log.i(LOG_TAG, "Compression enabled for " + getLogId());
        }
    } catch (IOException e) {
        close();
        Log.e(LOG_TAG, "Error enabling compression", e);
    }
}

Example 72 with Inflater

use of java.util.zip.Inflater in project AndroidAsync by koush.

the class HybiParser method finalize.

@Override
protected void finalize() throws Throwable {
    Inflater inflater = mInflater;
    if (inflater != null) {
        try {
            inflater.end();
        } catch (Exception e) {
            Log.e(TAG, "inflater.end failed", e);
        }
    }
    super.finalize();
}

Example 73 with Inflater

use of java.util.zip.Inflater in project rest.li by linkedin.

the class DeflateCompressor method inflate.

@Override
public byte[] inflate(InputStream data) throws CompressionException {
    byte[] input;
    try {
        input = IOUtils.toByteArray(data);
    } catch (IOException e) {
        throw new CompressionException(CompressionConstants.DECODING_ERROR + CompressionConstants.BAD_STREAM, e);
    }
    Inflater zlib = new Inflater();
    zlib.setInput(input);
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    byte[] temp = new byte[CompressionConstants.BUFFER_SIZE];
    int bytesRead;
    while (!zlib.finished()) {
        try {
            bytesRead = zlib.inflate(temp);
        } catch (DataFormatException e) {
            throw new CompressionException(CompressionConstants.DECODING_ERROR + getContentEncodingName(), e);
        }
        if (bytesRead == 0) {
            if (!zlib.needsInput()) {
                throw new CompressionException(CompressionConstants.DECODING_ERROR + getContentEncodingName());
            } else {
                break;
            }
        }
        if (bytesRead > 0) {
            output.write(temp, 0, bytesRead);
        }
    }
    zlib.end();
    return output.toByteArray();
}

Example 74 with Inflater

use of java.util.zip.Inflater in project dex2jar by pxb1988.

the class ZipFile method getInputStream.

/**
     * Returns an input stream on the data of the specified {@code android.ZipEntry}.
     * 
     * @param entry
     *            the android.ZipEntry.
     * @return an input stream of the data contained in the {@code android.ZipEntry}.
     * @throws java.io.IOException
     *             if an {@code IOException} occurs.
     * @throws IllegalStateException
     *             if this zip file has been closed.
     */
public InputStream getInputStream(ZipEntry entry) throws IOException {
    long entryDataStart = getEntryDataStart(entry);
    ByteBuffer is = (ByteBuffer) raf.duplicate().position((int) entryDataStart);
    if (entry.compressionMethod == ZipEntry.STORED) {
        final ByteBuffer buf = (ByteBuffer) is.slice().order(ByteOrder.LITTLE_ENDIAN).limit((int) entry.size);
        return new ByteBufferBackedInputStream(buf);
    } else {
        final ByteBuffer buf = (ByteBuffer) is.slice().order(ByteOrder.LITTLE_ENDIAN).limit((int) entry.compressedSize);
        int bufSize = Math.max(1024, (int) Math.min(entry.getSize(), 65535L));
        return new ZipInflaterInputStream(new ByteBufferBackedInputStream(buf), new Inflater(true), bufSize, entry);
    }
}

Example 75 with Inflater

use of java.util.zip.Inflater in project robovm by robovm.

the class OldAndroidZipStressTest method testZipDeflateInflateStress.

/**
     * Native memory allocated by Deflater in system_server. The fix reduced
     * some internal ZLIB buffers in size, so this test is trying to execute a
     * lot of deflating to ensure that things are still working properly.
     * http://b/1185084
     */
public void testZipDeflateInflateStress() throws Exception {
    final int DATA_SIZE = 16384;
    // Seed makes test reproducible
    Random random = new Random(42);
    // Outer loop selects "mode" of test.
    for (int j = 1; j <= 2; j++) {
        byte[] input = new byte[DATA_SIZE];
        if (j == 1) {
            // Totally random content
            random.nextBytes(input);
        } else {
            // Random contents with longer repetitions
            int pos = 0;
            while (pos < input.length) {
                byte what = (byte) random.nextInt(256);
                int howMany = random.nextInt(32);
                if (pos + howMany >= input.length) {
                    howMany = input.length - pos;
                }
                Arrays.fill(input, pos, pos + howMany, what);
                pos += howMany;
            }
        }
        // Inner loop tries all 9 compression levels.
        for (int i = 1; i <= 9; i++) {
            System.out.println("ZipDeflateInflateStress test (" + j + "," + i + ")...");
            // Just to make sure...
            byte[] zipped = new byte[2 * DATA_SIZE];
            Deflater deflater = new Deflater(i);
            deflater.setInput(input);
            deflater.finish();
            deflater.deflate(zipped);
            deflater.end();
            byte[] output = new byte[DATA_SIZE];
            Inflater inflater = new Inflater();
            inflater.setInput(zipped);
            inflater.finished();
            inflater.inflate(output);
            inflater.end();
            assertEquals(input, output);
        }
    }
}