def connect(self): 
        try:
            self.connection = pymongo.Connection(self.host, self.port)
            self.db = self.connection[self.name]
        except AutoReconnect:
            raise DatabaseException("It's not possible connect to the database")
def get_snapshot_metadata(self, snapshot_id):
        """Get metadata of the snapshot."""
        url = "snapshots/%s/metadata" % str(snapshot_id)
        resp, body = self.get(url)
        body = json.loads(body)
        return resp, body['metadata']