WIP on the re-implementation of fact caching and various backends.

lib/ansible/cache/__init__.py

@@ -0,0 +1,59 @@
+# (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 collections import MutableMapping
+
+from ansible import utils
+from ansible import constants as C
+from ansible import errors
+
+
+class FactCache(MutableMapping):
+
+    def __init__(self, *args, **kwargs):
+        self._plugin = utils.plugins.cache_loader.get(C.CACHE_PLUGIN)
+        if self._plugin is None:
+            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([(k, v) for (k, v) in self.iteritems()])
+
+    def keys(self):
+        return self._plugin.keys()