| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| import abc |
| import six |
| |
| from gremlin_python.driver import request |
| from gremlin_python.process import traversal |
| |
| __author__ = 'Marko A. Rodriguez (http://markorodriguez.com)' |
| |
| |
| @six.add_metaclass(abc.ABCMeta) |
| class RemoteConnection(object): |
| def __init__(self, url, traversal_source): |
| self._url = url |
| self._traversal_source = traversal_source |
| |
| @property |
| def url(self): |
| return self._url |
| |
| @property |
| def traversal_source(self): |
| return self._traversal_source |
| |
| @abc.abstractmethod |
| def submit(self, bytecode): |
| pass |
| |
| def __repr__(self): |
| return "remoteconnection[" + self._url + "," + self._traversal_source + "]" |
| |
| |
| class RemoteTraversal(traversal.Traversal): |
| def __init__(self, traversers): |
| super(RemoteTraversal, self).__init__(None, None, None) |
| self.traversers = traversers |
| |
| |
| class RemoteStrategy(traversal.TraversalStrategy): |
| def __init__(self, remote_connection): |
| traversal.TraversalStrategy.__init__(self) |
| self.remote_connection = remote_connection |
| |
| def apply(self, traversal): |
| if traversal.traversers is None: |
| remote_traversal = self.remote_connection.submit(traversal.bytecode) |
| traversal.remote_results = remote_traversal |
| traversal.traversers = remote_traversal.traversers |
| |
| def apply_async(self, traversal): |
| if traversal.traversers is None: |
| traversal.remote_results = self.remote_connection.submitAsync( |
| traversal.bytecode) |