[Twisted-Python] session management

[Mark]

Thanks.   My confusion is just in the naming of things...



On Thu, Apr 1, 2010 at 11:09 PM,  <exarkun at twistedmatrix.com> wrote:
> On 02:38 am, elihusmails at gmail.com wrote:
>>
>> On Wed, Mar 31, 2010 at 5:39 PM,  <exarkun at twistedmatrix.com> wrote:
>>>
>>> On 04:10 am, elihusmails at gmail.com wrote:
>>>>
>>>> On Tue, Mar 30, 2010 at 6:42 PM, Itamar Turner-Trauring
>>>> <itamar at itamarst.org> wrote:
>>>>>>
>>>>>> Greetings,
>>>>>>
>>>>>> I am new to this list and twisted.  I have worked with some systems
>>>>>> similar to twisted, notably Apache MINA.  I am trying to find out how
>>>>>> to set up my server to support sessions for multiple clients. Right
>>>>>> now I am simply developing a telnet-like application to learn twisted
>>>>>> but cannot figure out how to manage sessions for the remote clients.
>>>>>
>>>>> Each Protocol instance stays alive for the lifetime of the connection
>>>>> it
>>>>> is matched to (via the transport). So just store attributes on the
>>>>> Protocol instance.
>>>>
>>>> I figured as much that twisted supported the notion of sessions.  Are
>>>> there any examples that show me how to access them and
>>>> add/remove/update attributes in the session?
>>>
>>> Protocol instances are normal Python objects.  You can use normal Python
>>> attributes on them in the normal way.  For example:
>>>
>>>    from twisted.internet.protocol import Protocol
>>>
>>>    class Counter(Protocol):
>>>        """
>>>        Keep track of how many times data is delivered over a connection.
>>>        """
>>>        def connectionMade(self):
>>>            self.count = 0
>>>
>>>        def dataReceived(self, bytes):
>>>            self.count += 1
>>
>> Thanks for the help, but how do I access the session?  What would be
>> the method call to put the data into a session for instance?
>
> The protocol instance *is* the session (or, as I would normally say "the
> protocol instance has a one to one relationship with a connection", but I
> think that's what you mean when you say "the session").  You can define
> whichever methods and attributes you want.
>
> It's a regular Python object.  All the regular stuff you know about Python
> objects applies.
>
> Jean-Paul
>
>
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