vergissberlin /
mqtt-resource
| Conditions | 2 |
| Paths | 2 |
| Total Lines | 52 |
| Code Lines | 35 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 7 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | 'use strict' |
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| 3 | module.exports = (input, callback) => { |
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| 4 | const mqtt = require('mqtt') |
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| 5 | const configuration = require('./configuration') |
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| 6 | const validate = require('./validate') |
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| 7 | let error = null |
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| 8 | let output = null |
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| 9 | let receivedMessage |
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Unused Code
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| 10 | |||
| 11 | validate.sourceConfiguration(input, (validatedInput, thrownError) => { |
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| 12 | input = validatedInput |
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| 13 | error = thrownError |
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| 14 | }) |
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| 15 | validate.paramConfiguration(input, (validatedInput, thrownError) => { |
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| 16 | input = validatedInput |
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| 17 | error = thrownError |
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| 18 | }) |
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| 19 | |||
| 20 | // Send MQTT |
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| 21 | if ( !error ) { |
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| 22 | let configurationMqtt = configuration.mqtt(input) |
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| 23 | let client = mqtt.connect(input.source.url, configurationMqtt) |
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| 24 | |||
| 25 | client.on('connect', () => { |
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| 26 | client.subscribe(input.source.topic, (errorConnection) => { |
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| 27 | if ( !errorConnection ) { |
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| 28 | client.publish(input.source.topic, input.params.payload, { |
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| 29 | qos: input.params.qos, |
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| 30 | retain: false |
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| 31 | }) |
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| 32 | } else { |
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| 33 | error = errorConnection |
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| 34 | } |
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| 35 | }) |
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| 36 | }) |
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| 37 | |||
| 38 | client.on('message', (topic, message) => { |
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| 39 | output = { |
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| 40 | 'version': {'ref': 'output'}, |
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| 41 | 'metadata': [ |
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| 42 | {'name': 'message', 'value': input.params.payload.toString()}, |
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| 43 | {'name': 'receivedMessage', 'value': message.toString()}, |
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| 44 | {'name': 'qos', 'value': input.params.qos.toString()}, |
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| 45 | {'name': 'timestamp', 'value': Date.now().toString()}, |
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| 46 | {'name': 'topic', 'value': topic} |
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| 47 | ] |
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| 48 | } |
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| 49 | client.end() |
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| 50 | callback(error, output) |
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| 51 | }) |
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| 52 | |||
| 53 | } |
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| 54 | } |
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| 55 |
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