| #!/usr/bin/env python |
| # -*- encoding: utf-8 -*- |
| |
| # 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. |
| |
| """module for contextimpl: ContextImpl""" |
| |
| from heronpy.streamlet.context import Context |
| |
| class ContextImpl(Context): |
| """ContextImpl""" |
| def __init__(self, top_context, state, emitter): |
| self._top_context = top_context |
| self._state = state |
| self._emitter = emitter |
| |
| def get_task_id(self): |
| return self._top_context.get_task_id() |
| |
| def get_config(self): |
| return self._top_context.get_cluster_config() |
| |
| def get_stream_name(self): |
| return self._top_context.get_this_sources().keys()[0].id |
| |
| def get_num_partitions(self): |
| return len(self._top_context.get_component_tasks(self._top_context.get_component_id())) |
| |
| def get_partition_index(self): |
| tasks = self._top_context.get_component_tasks(self._top_context.get_component_id()) |
| tasks.sort() |
| return tasks.index(self.get_task_id()) |
| |
| def get_state(self): |
| return self._state |
| |
| def emit(self, values): |
| self._emitter.emit([values], stream='output') |