Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php  | 
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| 8 | class QueueManager extends AbstractManager  | 
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| 9 | { | 
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| 10 |     const MODULUS_PLACEHOLDER = '{modulus}'; | 
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| 11 | |||
| 12 | /**  | 
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| 13 | * @var BindingManager  | 
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| 14 | */  | 
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| 15 | private BindingManager $bindingManager;  | 
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| 16 | |||
| 17 | /**  | 
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| 18 | * @param BindingManager $bindingManager  | 
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| 19 | */  | 
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| 20 | 4 | public function __construct(BindingManager $bindingManager)  | 
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| 21 |     { | 
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| 22 | 4 | $this->bindingManager = $bindingManager;  | 
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| 23 | 4 | }  | 
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| 24 | |||
| 25 | /**  | 
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| 26 | * @param VhostConfiguration $configuration  | 
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| 27 | */  | 
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| 28 | 4 | public function define(VhostConfiguration $configuration): void  | 
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| 29 |     { | 
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| 30 | 4 |         foreach ($configuration->getConfiguration('queues') as $queue) { | 
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| 31 | |||
| 32 | 4 | $name = $queue['name'];  | 
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| 33 | 4 | unset($queue['name']);  | 
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| 34 | |||
| 35 | 4 | $bindings = $queue['bindings'];  | 
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| 36 | 4 | unset($queue['bindings']);  | 
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| 37 | |||
| 38 | 4 | $modulus = $queue['modulus'];  | 
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| 39 | 4 | unset($queue['modulus']);  | 
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| 40 | |||
| 41 | 4 |             if (null !== $modulus) { | 
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| 42 | 1 |                 for ($i = 0; $i < $modulus; $i++) { | 
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| 43 | 1 | $this->createQueue($configuration, $this->getModulusName($name, $i), $queue);  | 
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| 44 | |||
| 45 | 1 | $modulusBindings = $bindings;  | 
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| 46 | 1 |                     foreach ($modulusBindings as $key => $binding) { | 
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| 47 | 1 | $modulusBindings[$key]['routing_key'] = $this->getModulusName($binding['routing_key'], $i);  | 
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| 48 | 1 | }  | 
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| 49 | |||
| 50 | 1 | $this->bindingManager->define(  | 
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| 51 | 1 | $configuration,  | 
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| 52 | 1 | $this->getModulusName($name, $i),  | 
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| 53 | $modulusBindings  | 
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| 54 | 1 | );  | 
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| 55 | 1 | }  | 
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| 56 | 1 |             } else { | 
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| 57 | 4 | $this->createQueue($configuration, $name, $queue);  | 
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| 58 | |||
| 59 | 4 | $this->bindingManager->define($configuration, $name, $bindings);  | 
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| 60 | }  | 
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| 61 | 4 | }  | 
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| 62 | 4 | }  | 
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| 63 | |||
| 64 | /**  | 
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| 65 | * @param VhostConfiguration $configuration  | 
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| 66 | * @param string $name  | 
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| 67 | * @param array $queue  | 
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| 68 | */  | 
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| 69 | 4 | private function createQueue(VhostConfiguration $configuration, string $name, array $queue): void  | 
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| 70 |     { | 
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| 71 |         try { | 
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| 72 | 4 | $remoteQueue = $configuration->getClient()->queues()->get($configuration->getName(), $name);  | 
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| 73 | 4 |         } catch (ClientException $e) { | 
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| 74 | 2 | $this->handleNotFoundException($e);  | 
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| 75 | |||
| 76 | 2 | $configuration->getClient()->queues()->create($configuration->getName(), $name, $queue);  | 
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| 77 | }  | 
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| 78 | |||
| 79 | 4 |         if ($configuration->isDeleteAllowed() && isset($remoteQueue) && !$this->isUpToDate($queue, $remoteQueue)) { | 
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| 80 | 1 | $configuration->getClient()->queues()->delete($configuration->getName(), $name);  | 
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| 81 | 1 | $configuration->getClient()->queues()->create($configuration->getName(), $name, $queue);  | 
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| 82 | 1 | }  | 
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| 83 | 4 | }  | 
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| 84 | |||
| 85 | /**  | 
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| 86 | * @param string $name  | 
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| 87 | * @param string $modulus  | 
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| 88 | *  | 
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| 89 | * @return string  | 
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| 90 | */  | 
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| 91 | 1 | private function getModulusName(string $name, string $modulus): string  | 
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| 92 |     { | 
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| 93 | 1 | return str_replace(self::MODULUS_PLACEHOLDER, $modulus, $name);  | 
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| 94 | }  | 
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| 95 | }  | 
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| 96 |