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