def descriptor_factory(self, document_type, shard=u"lobby", **kwargs):
"""
Creates and returns a descriptor to pass it later
for starting the agent.
First parameter is a document_type representing the descirptor.
Second parameter is optional (default lobby). Usage:
> descriptor_factory('shard_descriptor', 'some shard')
"""
desc = factories.build(document_type, shard=unicode(shard), **kwargs)
return self._database_connection.save_document(desc)
def reset_descriptor(self):
self.descriptor = factories.build(type(self.agent).descriptor_type,
doc_id=self.agent_id)
