Source code for ztpserver.data
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import collections
import ztpserver.config
import ztpserver.serializers
serializer = ztpserver.serializers.Serializer()
[docs]class Data(collections.Mapping):
def __init__(self):
self._data = dict()
def __getitem__(self, key):
return self._data.get(key)
def __len__(self):
return len(self._data)
def __iter__(self):
return iter(self._data)
[docs]class DataFile(Data):
[docs] def load(self, filename, content_type='text/plain'):
fh = open(filename, 'r').read()
self._data = serializer.deserialize(fh, content_type)
[docs] def dump(self, filename, content_type='text/plain'):
data = serializer.serialize(self._data, content_type)
open(filename, 'w').write(data)
[docs]class NodeDb(DataFile):
[docs] def load(self):
filename = ztpserver.config.runtime.db.nodedb
super(NodeDb, self).load(filename, 'application/yaml')
[docs] def dump(self):
filename = ztpserver.config.runtime.db.nodedb
super(NodeDb, self).dump(filename, 'application/yaml')
[docs] def insert(self, name, definition):
""" inserts a node into the node db """
self._data[name] = definition
[docs] def delete(self, name):
""" deletes a node specified by name """
try:
del self._data[name]
except KeyError:
return
[docs] def has_node(self, name):
""" returns the existence of a node in node db """
return name in self._data