Current File : //lib/python2.7/site-packages/ansible/plugins/cache/__init__.py
# (c) 2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
from collections import MutableMapping
from ansible import constants as C
from ansible.plugins import cache_loader
try:
from __main__ import display
except ImportError:
from ansible.utils.display import Display
display = Display()
class FactCache(MutableMapping):
def __init__(self, *args, **kwargs):
self._plugin = cache_loader.get(C.CACHE_PLUGIN)
# Backwards compat: self._display isn't really needed, just import the global display and use that.
self._display = display
if self._plugin is None:
display.warning("Failed to load fact cache plugins")
return
def __getitem__(self, key):
if key not in self:
raise KeyError
return self._plugin.get(key)
def __setitem__(self, key, value):
self._plugin.set(key, value)
def __delitem__(self, key):
self._plugin.delete(key)
def __contains__(self, key):
return self._plugin.contains(key)
def __iter__(self):
return iter(self._plugin.keys())
def __len__(self):
return len(self._plugin.keys())
def copy(self):
""" Return a primitive copy of the keys and values from the cache. """
return dict(self)
def keys(self):
return self._plugin.keys()
def flush(self):
""" Flush the fact cache of all keys. """
self._plugin.flush()
def update(self, key, value):
host_cache = self._plugin.get(key)
host_cache.update(value)
self._plugin.set(key, host_cache)
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