Complex classes like Loop often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Loop, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 17 | class Loop |
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| 18 | { |
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| 19 | /** @var Run $run */ |
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| 20 | protected $run; |
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| 21 | |||
| 22 | /** @var OutputInterface */ |
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| 23 | protected $output; |
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| 24 | |||
| 25 | /** @var LoggerInterface */ |
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| 26 | protected $logger; |
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| 27 | |||
| 28 | /** @var WorkerManager */ |
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| 29 | protected $workerManager; |
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| 30 | |||
| 31 | /** @var JobManagerInterface */ |
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| 32 | protected $jobManager; |
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| 33 | |||
| 34 | /** @var RunManager */ |
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| 35 | protected $runManager; |
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| 36 | |||
| 37 | 3 | public function __construct( |
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| 46 | |||
| 47 | public function setLogger(LoggerInterface $logger) |
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| 51 | |||
| 52 | 1 | public function setOutput(OutputInterface $output) |
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| 56 | |||
| 57 | /** |
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| 58 | * The current (last) run object. |
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| 59 | * |
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| 60 | * @return Run|null |
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| 61 | */ |
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| 62 | 3 | public function getRun() |
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| 66 | |||
| 67 | /** |
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| 68 | * @param float $start |
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| 69 | */ |
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| 70 | 2 | public function runJobById($start, $jobId) |
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| 94 | |||
| 95 | /** |
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| 96 | * @param float $start |
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| 97 | * @param integer $nanoSleep |
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| 98 | * @param null|int $maxCount |
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| 99 | * @param null|int $duration |
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| 100 | */ |
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| 101 | 3 | public function runLoop($start, $workerName, $methodName, $maxCount, $duration = null, $nanoSleep = 500000000) |
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| 125 | |||
| 126 | /** |
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| 127 | * @param integer $nanoSleep |
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| 128 | * @param null|integer $maxCount |
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| 129 | * @param null|integer $duration |
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| 130 | * |
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| 131 | * @throws \Exception |
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| 132 | */ |
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| 133 | 3 | private function checkParameters(&$nanoSleep, &$maxCount, &$duration) |
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| 149 | |||
| 150 | /** |
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| 151 | * @param int|null $duration |
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| 152 | * |
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| 153 | * @return null|\DateTime |
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| 154 | */ |
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| 155 | 3 | protected function getEndTime($duration) |
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| 166 | |||
| 167 | /** |
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| 168 | * @param Job|null $job |
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| 169 | * @param bool $noMoreJobsToRun |
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| 170 | * @param int $currentJob |
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| 171 | * @param int|null $duration |
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| 172 | * @param int $nanoSleep |
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| 173 | */ |
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| 174 | protected function runCurrentJob($job, &$noMoreJobsToRun, &$currentJob, $duration, $nanoSleep) |
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| 192 | |||
| 193 | /** |
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| 194 | * @param $maxCount |
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| 195 | * @param $duration |
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| 196 | * @param $processTimeout |
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| 197 | */ |
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| 198 | public function checkMaxCountDuration(&$maxCount, &$duration, &$processTimeout) |
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| 209 | |||
| 210 | /** |
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| 211 | * Determine if the run loop is finished. |
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| 212 | * |
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| 213 | * @param $maxCount |
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| 214 | * @param integer|null $currentJob |
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| 215 | * @param integer|null $duration |
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| 216 | * @param \DateTime|null $endTime |
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| 217 | * @param boolean $noMoreJobsToRun |
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| 218 | * |
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| 219 | * @return bool |
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| 220 | */ |
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| 221 | protected function isFinished($maxCount, $endTime, $currentJob, $noMoreJobsToRun) |
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| 239 | |||
| 240 | /** |
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| 241 | * @param float $start |
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| 242 | */ |
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| 243 | protected function recordHeartbeat($start) |
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| 249 | |||
| 250 | protected function persistRun($action = 'persist') |
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| 258 | |||
| 259 | /** |
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| 260 | * @param int $count |
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| 261 | */ |
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| 262 | protected function updateProcessed($count) |
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| 267 | |||
| 268 | /** |
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| 269 | * Sets up the runManager (document / entity persister) if appropriate. |
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| 270 | * |
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| 271 | * @param float $start |
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| 272 | * @param int|null $maxCount |
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| 273 | * @param int|null $duration |
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| 274 | */ |
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| 275 | protected function runStart($start, $maxCount = null, $duration = null) |
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| 293 | |||
| 294 | /** |
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| 295 | * @param int|null $start |
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| 296 | */ |
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| 297 | protected function runStop($start) |
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| 308 | |||
| 309 | /** |
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| 310 | * @param Job $job |
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| 311 | */ |
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| 312 | protected function reportJob(Job $job) |
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| 322 | |||
| 323 | /** |
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| 324 | * @param string $level |
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| 325 | */ |
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| 326 | public function log($level, $msg, array $context = []) |
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| 343 | } |
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| 344 |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.