0eb5a6f6c7
Register a oslo.messaging entry point in the oslo.config.opts namespace
which, when called, returns a list of the configuration options which
may be registered by the library at runtime.
The idea here is that the sample config file generator can query this
and include the returned options in the sample config file of any
applications which use the library.
Some sample code for fetching available options:
import pkg_resources
for ep in pkg_resources.iter_entry_points('oslo.config.opts'):
if ep.name == "oslo.messaging":
list_opts = ep.load()
for g, opts in list_opts():
opts.sort(key=lambda x: x.name)
print "[%s]" % g
for o in opts:
print "%s = %s" % (o.name, o.default)
print
Related-Bug: #1241566
Change-Id: Ic28351258652d2ea38974e2f4d1aa6b1d3dd7192
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
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# Copyright 2014 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import pkg_resources
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from oslo.messaging import opts
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from tests import utils as test_utils
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class OptsTestCase(test_utils.BaseTestCase):
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def _test_list_opts(self, result):
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self.assertEqual(2, len(result))
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groups = [g for (g, l) in result]
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self.assertIn(None, groups)
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self.assertIn('matchmaker_ring', groups)
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opt_names = [o.name for (g, l) in result for o in l]
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self.assertIn('rpc_backend', opt_names)
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self.assertIn('allowed_rpc_exception_modules', opt_names)
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def test_list_opts(self):
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self._test_list_opts(opts.list_opts())
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def test_entry_point(self):
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result = None
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for ep in pkg_resources.iter_entry_points('oslo.config.opts'):
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if ep.name == "oslo.messaging":
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list_fn = ep.load()
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result = list_fn()
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break
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self.assertIsNotNone(result)
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self._test_list_opts(result)
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