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

Example 61 with GZIPOutputStream

use of java.util.zip.GZIPOutputStream in project android_frameworks_base by DirtyUnicorns.

the class InputMethodSubtypeArray method compress.

private static byte[] compress(final byte[] data) {
    try (final ByteArrayOutputStream resultStream = new ByteArrayOutputStream();
        final GZIPOutputStream zipper = new GZIPOutputStream(resultStream)) {
        zipper.write(data);
        zipper.finish();
        return resultStream.toByteArray();
    } catch (Exception e) {
        Slog.e(TAG, "Failed to compress the data.", e);
        return null;
    }
}

Example 62 with GZIPOutputStream

use of java.util.zip.GZIPOutputStream in project android_frameworks_base by AOSPA.

the class DropBoxManagerService method add.

public void add(DropBoxManager.Entry entry) {
    File temp = null;
    InputStream input = null;
    OutputStream output = null;
    final String tag = entry.getTag();
    try {
        int flags = entry.getFlags();
        if ((flags & DropBoxManager.IS_EMPTY) != 0)
            throw new IllegalArgumentException();
        init();
        if (!isTagEnabled(tag))
            return;
        long max = trimToFit();
        long lastTrim = System.currentTimeMillis();
        byte[] buffer = new byte[mBlockSize];
        input = entry.getInputStream();
        // First, accumulate up to one block worth of data in memory before
        // deciding whether to compress the data or not.
        int read = 0;
        while (read < buffer.length) {
            int n = input.read(buffer, read, buffer.length - read);
            if (n <= 0)
                break;
            read += n;
        }
        // If we have at least one block, compress it -- otherwise, just write
        // the data in uncompressed form.
        temp = new File(mDropBoxDir, "drop" + Thread.currentThread().getId() + ".tmp");
        int bufferSize = mBlockSize;
        if (bufferSize > 4096)
            bufferSize = 4096;
        if (bufferSize < 512)
            bufferSize = 512;
        FileOutputStream foutput = new FileOutputStream(temp);
        output = new BufferedOutputStream(foutput, bufferSize);
        if (read == buffer.length && ((flags & DropBoxManager.IS_GZIPPED) == 0)) {
            output = new GZIPOutputStream(output);
            flags = flags | DropBoxManager.IS_GZIPPED;
        }
        do {
            output.write(buffer, 0, read);
            long now = System.currentTimeMillis();
            if (now - lastTrim > 30 * 1000) {
                // In case data dribbles in slowly
                max = trimToFit();
                lastTrim = now;
            }
            read = input.read(buffer);
            if (read <= 0) {
                FileUtils.sync(foutput);
                // Get a final size measurement
                output.close();
                output = null;
            } else {
                // So the size measurement is pseudo-reasonable
                output.flush();
            }
            long len = temp.length();
            if (len > max) {
                Slog.w(TAG, "Dropping: " + tag + " (" + temp.length() + " > " + max + " bytes)");
                temp.delete();
                // Pass temp = null to createEntry() to leave a tombstone
                temp = null;
                break;
            }
        } while (read > 0);
        long time = createEntry(temp, tag, flags);
        temp = null;
        final Intent dropboxIntent = new Intent(DropBoxManager.ACTION_DROPBOX_ENTRY_ADDED);
        dropboxIntent.putExtra(DropBoxManager.EXTRA_TAG, tag);
        dropboxIntent.putExtra(DropBoxManager.EXTRA_TIME, time);
        if (!mBooted) {
            dropboxIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
        }
        // Call sendBroadcast after returning from this call to avoid deadlock. In particular
        // the caller may be holding the WindowManagerService lock but sendBroadcast requires a
        // lock in ActivityManagerService. ActivityManagerService has been caught holding that
        // very lock while waiting for the WindowManagerService lock.
        mHandler.sendMessage(mHandler.obtainMessage(MSG_SEND_BROADCAST, dropboxIntent));
    } catch (IOException e) {
        Slog.e(TAG, "Can't write: " + tag, e);
    } finally {
        IoUtils.closeQuietly(output);
        IoUtils.closeQuietly(input);
        entry.close();
        if (temp != null)
            temp.delete();
    }
}

Example 63 with GZIPOutputStream

use of java.util.zip.GZIPOutputStream in project android_frameworks_base by AOSPA.

the class InputMethodSubtypeArray method compress.

private static byte[] compress(final byte[] data) {
    try (final ByteArrayOutputStream resultStream = new ByteArrayOutputStream();
        final GZIPOutputStream zipper = new GZIPOutputStream(resultStream)) {
        zipper.write(data);
        zipper.finish();
        return resultStream.toByteArray();
    } catch (Exception e) {
        Slog.e(TAG, "Failed to compress the data.", e);
        return null;
    }
}

Example 64 with GZIPOutputStream

use of java.util.zip.GZIPOutputStream in project midpoint by Evolveum.

the class RUtil method getByteArrayFromXml.

public static byte[] getByteArrayFromXml(String xml, boolean compress) {
    byte[] array;
    GZIPOutputStream gzip = null;
    try {
        if (compress) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            gzip = new GZIPOutputStream(out);
            gzip.write(xml.getBytes("utf-8"));
            gzip.close();
            out.close();
            array = out.toByteArray();
        } else {
            array = xml.getBytes("utf-8");
        }
    } catch (Exception ex) {
        throw new SystemException("Couldn't save full xml object, reason: " + ex.getMessage(), ex);
    } finally {
        IOUtils.closeQuietly(gzip);
    }
    return array;
}

Example 65 with GZIPOutputStream

use of java.util.zip.GZIPOutputStream in project Glowstone by GlowstoneMC.

the class Metrics method compress.

/**
     * Gzips the given String.
     *
     * @param str The string to gzip.
     * @return The gzipped String.
     * @throws IOException If the compression failed.
     */
private static byte[] compress(final String str) throws IOException {
    if (str == null) {
        return null;
    }
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
    gzip.write(str.getBytes("UTF-8"));
    gzip.close();
    return outputStream.toByteArray();
}