| # -*- coding: 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. |
| |
| # This Python file uses the following encoding: utf-8 |
| |
| import storm |
| from random import choice |
| from time import sleep |
| from uuid import uuid4 |
| |
| words = [u"nathan", u"mike", u"jackson", u"golda", u"bertels人"] |
| |
| class TesterSpout(storm.Spout): |
| def initialize(self, conf, context): |
| storm.log('spout initializing') |
| self.pending = {} |
| self.count = 0 |
| |
| def nextTuple(self): |
| if self.count < 2: |
| word = choice(words) |
| id = str(uuid4()) |
| self.pending[id] = word |
| storm.rpcMetrics("my-custom-shellspout-metric", 1) |
| self.count = self.count + 1 |
| storm.log("TesterSpout update my-custom-shellspout-metric "+str(self.count)) |
| storm.emit([word], id=id) |
| |
| def ack(self, id): |
| del self.pending[id] |
| |
| def fail(self, id): |
| storm.log("emitting " + self.pending[id] + " on fail") |
| storm.emit([self.pending[id]], id=id) |
| |
| TesterSpout().run() |
