Overlaping messages

["이희승 (Trustin Lee)"]

Thanks, Christian for a great answer. :)

Cheers,
Trustin

On 07/03/2009 03:25 PM, Christian Migowski wrote:
> Hi Ernesto,
> 
> from the information given so far, I would say it just coincidentaly
> works fine when you only use the StringDecoder. As the Javadoc for
> StringDecoder and OneToOneDecoder say, you have to use some kind of
> FrameDecoder before using this decoder because the network input
> stream must be "tokenized" into message units first.
> 
> hth,
> regards,
> christian
> 
> On Thu, Jul 2, 2009 at 10:20 PM, Ernesto A.<eaneiros at gmail.com> wrote:
>> Hi,
>>
>> I'm playing around with netty to see if we can use it to replace our
>> old network framework, based on its flexibility and the promise of
>> switching to nio with minimal effort should we need it. So far I have
>> encountered only one problem: we use a simple text protocol to
>> communicate between client and server, it consists of text fields
>> separated by a separator, we have the following setup for the channel
>> factory
>>
>> ...ChannelFactory:
>> pipeline.addLast("string_decoder", new StringDecoder());
>> pipeline.addLast("object_decoder", new OurObjectDecoder());
>>
>> OurObjectDecoder class extends OneToOneDecoder, takes a string message
>> and parses it to produce a POJO. So far so good, but sometimes, not
>> always, a message would overlap over a previous message at the same
>> position always, and we end up receiving two messages in one, and
>> consequently failing to register and losing the second message.
>> However when I take my object decoder out of the pipeline chain and
>> handle the message directly on my business logic then I get the
>> messages one after the other without overlaping. Could it be two
>> internal netty threads modifying the ChannelBuffer concurrently? I'm
>> using netty 3.1.0.cr1, any feedback would be appreciated, thanks in
>> advance, Ernest.
>> _______________________________________________
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>> netty-users at lists.jboss.org
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>>
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