Suppress WARNING messages

[project2501]

Hi,

  Is it considered an anti-pattern to have loaded the same bundle more than once? I see WARNING messages on the console.

If it is not an anti-pattern or there are no significant side effects, is there a way to suppress these messages?

thank you.

[project2501]

For example:

WARNING:pelix.main:Already installed bundle: radiant.find.components.ml.topics

[Thomas Calmant]

Hi,

This is a legacy from the OSGi specification, as only one bundle with a given symbolic name (the module name in iPOPO) can be installed at a time.

This is due to the way OSGi and the Java class loaders work.

In Python, loading the same module a second doesn't do anything: it only returns the module in its current state (no reload, no redefinition of constants, ...)

iPOPO prints a warning as it could be an unexpected behaviour in the application. Early versions of iPOPO were even raising an exception.

Indeed, this level of this message could be lowered, either at information or debug level, to quiet down the framework: this is subject to debate with other users.

Cheers,

Thomas

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[Darren G]

Ok. Thanks for the explanation. So this message is being logged at the WARN logger level? And I can filter it out with simple logger config now? Or were you speculating that in the future it could be?

Thanks in advance.

[Thomas Calmant]

Yes, this is a message logged at warning level in the "pelix.framework" logger, here:
https://github.com/tcalmant/ipopo/blob/master/pelix/framework.py#L719

I see 3 solutions here:

- lower the log level (like debug)

- use a specific a logger which could de/activated with a framework option.

- use the Python's warnings module for this kind of problem.

Both options could be coded quite easily, maybe for monday or tuesday.

Cheers,

Thomas

[project2501]

For anyone else visiting this thread, this solution worked for me.

logging.getLogger("pelix.main").setLevel(logging.CRITICAL)

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[Thomas Calmant]

Hi,

The log level of this warning has been lowered to DEBUG in commit 6323c49.

Cheers,

Thomas

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