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6c4f554f5a
If the configured fact_cache plugin (fact_caching config) fails, raise a fatal error instead of failing mysteriously later. Fixes #18751
86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
# (c) 2014, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from collections import MutableMapping
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from ansible import constants as C
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from ansible.errors import AnsibleError
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from ansible.plugins import cache_loader
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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class FactCache(MutableMapping):
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def __init__(self, *args, **kwargs):
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self._plugin = cache_loader.get(C.CACHE_PLUGIN)
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if not self._plugin:
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raise AnsibleError('Unable to load the facts cache plugin (%s)\n'
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'Check fact cache config options :\n'
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'Current values:\n'
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' fact_caching: %s\n'
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' fact_caching_connection: %s' %
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(C.CACHE_PLUGIN, C.CACHE_PLUGIN, C.CACHE_PLUGIN_CONNECTION))
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# Backwards compat: self._display isn't really needed, just import the global display and use that.
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self._display = display
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if self._plugin is None:
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display.warning("Failed to load fact cache plugins")
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return
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def __getitem__(self, key):
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if key not in self:
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raise KeyError
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return self._plugin.get(key)
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def __setitem__(self, key, value):
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self._plugin.set(key, value)
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def __delitem__(self, key):
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self._plugin.delete(key)
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def __contains__(self, key):
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return self._plugin.contains(key)
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def __iter__(self):
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return iter(self._plugin.keys())
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def __len__(self):
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return len(self._plugin.keys())
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def copy(self):
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""" Return a primitive copy of the keys and values from the cache. """
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return dict(self)
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def keys(self):
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return self._plugin.keys()
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def flush(self):
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""" Flush the fact cache of all keys. """
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self._plugin.flush()
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def update(self, key, value):
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host_cache = self._plugin.get(key)
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host_cache.update(value)
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self._plugin.set(key, host_cache)
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