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I have a suggestion to simplify the code, see comments on diff.

If ha tests are passing amqp1.0 to the native client that is a bug in the 
tests. It was non trivial to get the HA tests working with both swig and native 
clients I'm not surprised if I overlooked something like that. Can't say for 
sure but if other tests are doing this it is probably a test bug also.


/trunk/qpid/python/qpid/messaging/endpoints.py
<https://reviews.apache.org/r/22864/#comment81762>

    You are no longer setting all the attribute to None at the outset. I think 
that means attribute not mentioned in options won't get set which will cause 
problems later as the attributes won't exist.



/trunk/qpid/python/qpid/messaging/endpoints.py
<https://reviews.apache.org/r/22864/#comment81761>

    Missing self. on  reconnect_interval
    
    This if statement is long. May I suggest something like:
    
        # We specify the full list of attributes in one place.
        opt_attrs = ['host', 'transport', 'port'...]
        # Create all attributes on self and set to None.
        for key in opt_keys:
            setattr(self, attr, None)
        # Get values from options, check for invalid options
        for (key, value) in options.iteritems():
            if key in opt_keys:
                setattr(self, key, value)
            else:
                raise ConnectionError("Unknown connection option " + key + " 
with value " + value)
    
        # Now handle items that need special treatment or have speical defaults:
        if self.host:
            url = default(url, self.host)
        if isinstance(url, basestring):
            url = URL(url)
        self.host = url.host
    
        if self.protocol and self.protocol != "amqp0-10":
            raise ConnectionError("Connection option 'protocol' value '" + 
value + "' unsupported (must be amqp0-10)")
    
        # ... etc, set defaults...


- Alan Conway


On June 23, 2014, 2:35 p.m., Pavel Moravec wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/22864/
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> 
> (Updated June 23, 2014, 2:35 p.m.)
> 
> 
> Review request for qpid, Alan Conway, Kenneth Giusti, Darryl Pierce, and 
> Rafael Schloming.
> 
> 
> Bugs: QPID-5836
>     https://issues.apache.org/jira/browse/QPID-5836
> 
> 
> Repository: qpid
> 
> 
> Description
> -------
> 
> options need to be iterated to identify possible unknown options. Default 
> values (even None, otherwise Python complains it does not know them) have to 
> be set before the loop that overwrites the defaults.
> 
> This is in my eyes better option than adding an extra check like:
> 
> for key in options.keys():
>   if key not in ["reconnect", "transport", "port", .. ]:
>     raise error
> 
> As this check would have to be maintained and there is a risk one forgets to 
> add a new connection option there while handling it otherwise.
> 
> The code change is more than reasonable but several automated tests failed - 
> some of them (like ha_tests.RecoveryTests.test_queue_hold) due to connection 
> option protocol:amqp1.0. While that option should be present _only_ for swig 
> client that does not call endpoints.py and Connection class. Other test 
> failures are not directly related to that "missing" option but I guess it 
> would be the indirect reason (some connection supposed to provision something 
> failed due to that option, so the provisioning was missing etc.).
> 
> Any idea where & why _native_ client sets protocol:amqp1.0 ? (I even added 
> the possibility protocol:amqp0-10 but that didnt help, obviously). Automated 
> tests results added.
> 
> 
> Diffs
> -----
> 
>   /trunk/qpid/python/qpid/messaging/endpoints.py 1604713 
> 
> Diff: https://reviews.apache.org/r/22864/diff/
> 
> 
> Testing
> -------
> 
> Automated tests passed.
> 
> Manual test with connection option {'a':'b'} raises error:
> 
> Traceback (most recent call last):
>   File "get_queue_arguments.py", line 17, in <module>
>     connection = Connection(brokerurl, **parms)
>   File "/usr/lib/python2.6/site-packages/qpid/messaging/endpoints.py", line 
> 195, in __init__
>     raise ConnectionError("Unknown connection option " + key + " with value " 
> + value)
> qpid.messaging.exceptions.ConnectionError: None(Unknown connection option a 
> with value b)
> 
> 
> File Attachments
> ----------------
> 
> automated tests results
>   
> https://reviews.apache.org/media/uploaded/files/2014/06/23/4458e6a3-7d13-445e-a280-4548a6cc21fc__LastTest.log
> 
> 
> Thanks,
> 
> Pavel Moravec
> 
>

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