ChannelBuffer to HttpRequest - using HttpRequestDecoder

[Renjith T]

I am working on a handler ( from SimpleChannelUpstreamHandler), that 
gives the message in messageRecieved as a ChannelBuffer .

     public void messageReceived(ChannelHandlerContext ctx, final 
MessageEvent e)
             throws Exception {
          final ChannelBuffer request  = (ChannelBuffer) e.getMessage();
           ... // do something

     }


I would like to convert this ChannelBuffer to a HttpRequest, through 
some means, if possible.

(   pipeline.addLast("decoder", new HttpRequestDecoder()); , in the 
pipeline factory does not work since I need the raw ChannelBuffer as 
mentioned above , for some other downstream processing as well).

How can I achieve the above ?