| /* |
| * 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. |
| */ |
| |
| /** |
| * Example for async bolt. Receives sentence and breaks it into words. |
| * |
| */ |
| |
| |
| var storm = require('./storm'); |
| var BasicBolt = storm.BasicBolt; |
| |
| function SplitSentenceBolt() { |
| BasicBolt.call(this); |
| }; |
| |
| SplitSentenceBolt.prototype = Object.create(BasicBolt.prototype); |
| SplitSentenceBolt.prototype.constructor = SplitSentenceBolt; |
| |
| SplitSentenceBolt.prototype.process = function(tup, done) { |
| var self = this; |
| |
| // Here setTimeout is not really needed, we use it to demonstrate asynchronous code in the process method: |
| setTimeout(function() { |
| var words = tup.values[0].split(" "); |
| words.forEach(function(word) { |
| self.emit({tuple: [word], anchorTupleId: tup.id}, function(taskIds) { |
| self.log(word + ' sent to task ids - ' + taskIds); |
| }); |
| }); |
| done(); |
| }, 5000) |
| } |
| |
| new SplitSentenceBolt().run(); |