* @param dstIndex
     * @return written bytes
     */
    public int writeWireFormat ( byte[] dst, int dstIndex ) {
        this.length = writeTrailerWireFormat(dst, dstIndex + HEADER_LENGTH);
        writeHeaderWireFormat(dst, dstIndex);
        return HEADER_LENGTH + this.length;
    }


    int readWireFormat ( InputStream in, byte[] buffer, int bufferIndex ) throws IOException {

        writeHeaderWireFormat( dst, dstIndex );
        return HEADER_LENGTH + length;
    }
    int readWireFormat( InputStream in, byte[] buffer, int bufferIndex ) throws IOException {
        readHeaderWireFormat( in, buffer, bufferIndex );
        return HEADER_LENGTH + readTrailerWireFormat( in, buffer, bufferIndex );
    }
    int writeHeaderWireFormat( byte[] dst, int dstIndex ) {