public ChunkedOutputFilter() 
{
    // ----------------------------------------------------- Static Initializer
        ENCODING.setBytes(ENCODING_NAME.getBytes(), 0, ENCODING_NAME.length());
        byte[] END_CHUNK_BYTES = {(byte) '0", (byte) '\r", (byte) '\n", 
                                  (byte) '\r", (byte) '\n"};
        END_CHUNK.setBytes(END_CHUNK_BYTES, 0, END_CHUNK_BYTES.length);
        chunkLength = new byte[10];
        chunkLength[8] = (byte) '\r";
        chunkLength[9] = (byte) '\n";
}

Default constructor.

 public int doWrite(ByteChunk chunk,
    Response res) throws IOException 
{
    // ------------------------------------------------------------- Properties
    // --------------------------------------------------- OutputBuffer Methods
        int result = chunk.getLength();
        if (result < = 0) {
            return 0;
        }
        // Calculate chunk header
        int pos = 7;
        int current = result;
        while (current  > 0) {
            int digit = current % 16;
            current = current / 16;
            chunkLength[pos--] = HexUtils.HEX[digit];
        }
        chunkHeader.setBytes(chunkLength, pos + 1, 9 - pos);
        buffer.doWrite(chunkHeader, res);
        buffer.doWrite(chunk, res);
        chunkHeader.setBytes(chunkLength, 8, 2);
        buffer.doWrite(chunkHeader, res);
        return result;
}

Write some bytes.

 public long end() throws IOException 
{
        // Write end chunk
        buffer.doWrite(END_CHUNK, null);
        return 0;
}

End the current request. It is acceptable to write extra bytes using buffer.doWrite during the execution of this method.

 public ByteChunk getEncodingName() 
{
        return ENCODING;
}

Return the name of the associated encoding; Here, the value is "identity".

 public  void recycle() 
{

}

Make the filter ready to process the next request.

 public  void setBuffer(OutputBuffer buffer) 
{
        this.buffer = buffer;
}

Set the next buffer in the filter pipeline.

 public  void setResponse(Response response) 
{

}

Some filters need additional parameters from the response. All the necessary reading can occur in that method, as this method is called after the response header processing is complete.