| #!/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. |
| |
| '''half ack bolt''' |
| from heronpy.api.bolt.bolt import Bolt |
| |
| class HalfAckBolt(Bolt): |
| """Half of data tuples will be acked and the other half will be failed""" |
| # pylint: disable=unused-argument |
| def initialize(self, config, context): |
| self.total = 0 |
| |
| def process(self, tup): |
| self.total += 1 |
| if self.total % 2 == 0: |
| self.logger.debug("Failing a tuple: %s" % str(tup)) |
| self.fail(tup) |
| else: |
| self.logger.debug("Acking a tuple: %s" % str(tup)) |
| self.ack(tup) |
| |
| def process_tick(self, tup): |
| self.log("Got tick tuple!") |
| self.log("Total received: %d" % self.total) |