On 9/13/10 9:20 AM, Kúti Zsolt wrote:
Hello,
My decoder worked fine until fragmentation of data happend.
Test case is needed to cover this.
Not knowing better I come up with code that feeds my decoder's doDcode()
method with fragmented data.
I am curious how others solve this.
It depends on the protocol you are implementing. In any case, you have
to gather the bytes that will produce a message once decoded. This can
be done with a CumulativePotocolDecoder if you are usig a text based
protocol with a clear limit (new line, a specific char, etc.) If you
have a binay protocol, you'll have to handle fragmentation yourself.
The biggest advantage of the CumulativeProtocolDecoder is that not only
you can tell it about the message boundary, but it will also call the
decode() methd as many time as you have messages to decode (as you may
have a fragmented message, you may also receive more than one message in
a single buffer).
--
Regards,
Cordialement,
Emmanuel Lécharny
www.iktek.com
