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

Example 26 with Inflater

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

the class IOUtil method decompress.

public static byte[] decompress(byte[] compressedData) throws IOException {
    if (compressedData.length == 0) {
        return compressedData;
    }
    Inflater inflater = new Inflater();
    inflater.setInput(compressedData);
    ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);
    byte[] buf = new byte[1024];
    while (!inflater.finished()) {
        try {
            int count = inflater.inflate(buf);
            bos.write(buf, 0, count);
        } catch (DataFormatException e) {
            Logger.getLogger(IOUtil.class).finest("Decompression failed", e);
        }
    }
    bos.close();
    inflater.end();
    return bos.toByteArray();
}

Example 27 with Inflater

use of java.util.zip.Inflater in project j2objc by google.

the class DeflaterTest method testDeflate.

public void testDeflate() throws DataFormatException {
    deflater.setInput(new byte[] { 1, 2, 3 });
    deflateInflate(Deflater.NO_FLUSH);
    assertTrue(totalInflated < 3);
    // the 3rd byte shouldn't have been flushed yet
    assertEquals(0, decompressed[2]);
    deflater.setInput(new byte[] { 4, 5, 6 });
    deflateInflate(Deflater.SYNC_FLUSH);
    assertEquals(6, totalInflated);
    assertDecompressed(1, 2, 3, 4, 5, 6);
    assertEquals(0, inflater.inflate(decompressed));
    deflater.setInput(new byte[] { 7, 8, 9 });
    deflateInflate(Deflater.FULL_FLUSH);
    assertEquals(9, totalInflated);
    assertDecompressed(1, 2, 3, 4, 5, 6, 7, 8, 9);
    assertEquals(0, inflater.inflate(decompressed));
    // safe because we did a FULL_FLUSH
    inflater = new Inflater(true);
    deflater.setInput(new byte[] { 10, 11, 12 });
    deflateInflate(Deflater.SYNC_FLUSH);
    assertEquals(12, totalInflated);
    assertDecompressed(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
    assertEquals(0, inflater.inflate(decompressed));
}

Example 28 with Inflater

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

the class StrictJarFile method getZipInputStream.

private InputStream getZipInputStream(ZipEntry ze) {
    if (ze.getMethod() == ZipEntry.STORED) {
        return new RAFStream(raf, ze.getDataOffset(), ze.getDataOffset() + ze.getSize());
    } else {
        final RAFStream wrapped = new RAFStream(raf, ze.getDataOffset(), ze.getDataOffset() + ze.getCompressedSize());
        int bufSize = Math.max(1024, (int) Math.min(ze.getSize(), 65535L));
        return new ZipInflaterInputStream(wrapped, new Inflater(true), bufSize, ze);
    }
}

Example 29 with Inflater

use of java.util.zip.Inflater in project android_frameworks_base by ResurrectionRemix.

the class StrictJarFile method getZipInputStream.

private InputStream getZipInputStream(ZipEntry ze) {
    if (ze.getMethod() == ZipEntry.STORED) {
        return new FDStream(fd, ze.getDataOffset(), ze.getDataOffset() + ze.getSize());
    } else {
        final FDStream wrapped = new FDStream(fd, ze.getDataOffset(), ze.getDataOffset() + ze.getCompressedSize());
        int bufSize = Math.max(1024, (int) Math.min(ze.getSize(), 65535L));
        return new ZipInflaterInputStream(wrapped, new Inflater(true), bufSize, ze);
    }
}

Example 30 with Inflater

use of java.util.zip.Inflater in project voltdb by VoltDB.

the class FileArchiver method unarchive.

public static void unarchive(String infilename, String outfilename, FileAccess storage, int compressionType) throws IOException {
    InputStream f = null;
    OutputStream outstream = null;
    boolean completed = false;
    try {
        if (!storage.isStreamElement(infilename)) {
            return;
        }
        storage.removeElement(outfilename);
        byte[] b = new byte[COPY_BLOCK_SIZE];
        f = storage.openInputStreamElement(infilename);
        switch(compressionType) {
            case COMPRESSION_ZIP:
                f = new InflaterInputStream(f, new Inflater());
                break;
            case COMPRESSION_GZIP:
                f = new GZIPInputStream(f, b.length);
                break;
            case COMPRESSION_NONE:
                break;
            default:
                throw new RuntimeException("FileArchiver: " + compressionType);
        }
        outstream = storage.openOutputStreamElement(outfilename);
        while (true) {
            int l = f.read(b, 0, b.length);
            if (l == -1) {
                break;
            }
            outstream.write(b, 0, l);
        }
        completed = true;
    } catch (Throwable e) {
        throw FileUtil.toIOException(e);
    } finally {
        try {
            if (f != null) {
                f.close();
            }
            if (outstream != null) {
                outstream.flush();
                outstream.close();
            }
            if (!completed && storage.isStreamElement(outfilename)) {
                storage.removeElement(outfilename);
            }
        } catch (Throwable e) {
            throw FileUtil.toIOException(e);
        }
    }
}