Requête HTTP de compression

Parce que le code d'origine n'est plus disponible. Dans le cas où quelqu'un viendrait-il ici besoin.
J'utilise "Content-Encoding: gzip" pour identifier le filtre de décompression ou pas.

Voici les codes.

 @Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException
{
    HttpServletRequest httpServletRequest = (HttpServletRequest) request;

    String contentEncoding = httpServletRequest.getHeader("Content-Encoding");
    if (contentEncoding != null && contentEncoding.indexOf("gzip") > -1)
    {
        try
        {
            final InputStream decompressStream = StreamHelper.decompressStream(httpServletRequest.getInputStream());

            httpServletRequest = new HttpServletRequestWrapper(httpServletRequest)
            {

                @Override
                public ServletInputStream getInputStream() throws IOException
                {
                    return new DecompressServletInputStream(decompressStream);
                }

                @Override
                public BufferedReader getReader() throws IOException
                {
                    return new BufferedReader(new InputStreamReader(decompressStream));
                }
            };
        }
        catch (IOException e)
        {
            mLogger.error("error while handling the request", e);
        }
    }

    chain.doFilter(httpServletRequest, response);
}

Simple ServletInputStream classe wrapper

public static class DecompressServletInputStream extends ServletInputStream
{
    private InputStream inputStream;

    public DecompressServletInputStream(InputStream input)
    {
        inputStream = input;

    }

    @Override
    public int read() throws IOException
    {
        return inputStream.read();
    }

}

De décompression de flux de code

public class StreamHelper
{

    /**
     * Gzip magic number, fixed values in the beginning to identify the gzip
     * format <br>
     * http://www.gzip.org/zlib/rfc-gzip.html#file-format
     */
    private static final byte GZIP_ID1 = 0x1f;
    /**
     * Gzip magic number, fixed values in the beginning to identify the gzip
     * format <br>
     * http://www.gzip.org/zlib/rfc-gzip.html#file-format
     */
    private static final byte GZIP_ID2 = (byte) 0x8b;

    /**
     * Return decompression input stream if needed.
     * 
     * @param input
     *            original stream
     * @return decompression stream
     * @throws IOException
     *             exception while reading the input
     */
    public static InputStream decompressStream(InputStream input) throws IOException
    {
        PushbackInputStream pushbackInput = new PushbackInputStream(input, 2);

        byte[] signature = new byte[2];
        pushbackInput.read(signature);
        pushbackInput.unread(signature);

        if (signature[0] == GZIP_ID1 && signature[1] == GZIP_ID2)
        {
            return new GZIPInputStream(pushbackInput);
        }
        return pushbackInput;
    }
}

OriginalL'auteur Happier