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public InputStream getCompressed(InputStream is) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ZipOutputStream zos = new ZipOutputStream(bos);
    zos.putNextEntry(new ZipEntry(""));
    int count;
    byte data[] = new byte[2048];
    BufferedInputStream entryStream = new BufferedInputStream(is, 2048);
    while ((count = entryStream.read(data, 0, 2048)) != -1) {
        zos.write( data, 0, count );
    entryStream.close();
    zos.closeEntry();
    zos.close();
    return new ByteArrayInputStream(bos.toByteArray());
        
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