74f953a1d7
We don't need to have the vi modelines in each source file, it can be set in a user's vimrc if required. Also a check is added to hacking to detect if they are re-added. Change-Id: I347307a5145b2760c69085b6ca850d6a9137ffc6 Closes-Bug: #1229324
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# Copyright 2013 IBM Corp.
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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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from nova import exception
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from nova.openstack.common.gettextutils import _
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from nova.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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class LoadedExtensionInfo(object):
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"""Keep track of all loaded API extensions."""
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def __init__(self):
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self.extensions = {}
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def register_extension(self, ext):
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if not self._check_extension(ext):
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return False
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alias = ext.alias
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LOG.audit(_("Loaded extension %s"), alias)
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if alias in self.extensions:
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raise exception.NovaException("Found duplicate extension: %s"
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% alias)
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self.extensions[alias] = ext
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return True
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def _check_extension(self, extension):
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"""Checks for required methods in extension objects."""
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try:
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LOG.debug(_('Ext name: %s'), extension.name)
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LOG.debug(_('Ext alias: %s'), extension.alias)
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LOG.debug(_('Ext description: %s'),
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' '.join(extension.__doc__.strip().split()))
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LOG.debug(_('Ext version: %i'), extension.version)
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except AttributeError as ex:
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LOG.exception(_("Exception loading extension: %s"), unicode(ex))
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return False
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return True
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def get_extensions(self):
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return self.extensions
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