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72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
# Copyright: (c) 2014, Michael DeHaan <michael.dehaan@gmail.com>
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# Copyright: (c) 2018, Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import annotations
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from collections.abc 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.loader import cache_loader
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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).' % (C.CACHE_PLUGIN))
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super(FactCache, self).__init__(*args, **kwargs)
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def __getitem__(self, key):
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if not self._plugin.contains(key):
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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 first_order_merge(self, key, value):
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host_facts = {key: value}
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try:
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host_cache = self._plugin.get(key)
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if host_cache:
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host_cache.update(value)
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host_facts[key] = host_cache
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except KeyError:
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pass
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super(FactCache, self).update(host_facts)
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