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<?php declare(strict_types=1); |
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namespace WyriHaximus\Recoil; |
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use Recoil\Kernel; |
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use Rx\ObservableInterface; |
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use Rx\Subject\Subject; |
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final class FiniteCaller implements QueueCallerPoolInterface |
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{ |
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/** @var State */ |
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private $state; |
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/** @var QueueCallerInterface[] */ |
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private $caller = []; |
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/** @var State[] */ |
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private $callerState = []; |
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/** @var Subject */ |
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private $callerStream = []; |
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/** @var array */ |
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private $queue = []; |
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/** @var int */ |
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private $callersBusy = 0; |
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/** @var int */ |
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private $callersCount = 0; |
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/** |
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* @param Kernel $kernel |
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* @param int $size |
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*/ |
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public function __construct(Kernel $kernel, int $size) |
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{ |
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$this->callersCount = $size; |
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$this->state = new State(); |
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for ($i = 0; $i < $size; $i++) { |
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$subject = new Subject(); |
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$caller = new QueueCaller($kernel); |
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$hash = \spl_object_hash($caller); |
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$this->caller[$hash] = $caller; |
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$this->callerStream[$hash] = $subject; |
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$this->callerState[$hash] = $caller->call($subject); |
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$this->callerState[$hash]->filter(function () { |
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return \count($this->queue) > 0; |
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})->filter(function (int $state) { |
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return $state === State::WAITING; |
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})->subscribe(function () use ($hash): void { |
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$this->callerStream[$hash]->onNext(\array_shift($this->queue)); |
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}); |
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$this->callerState[$hash]->subscribe(function () use ($hash): void { |
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$this->callersBusy = \count(\array_filter($this->callerState, function (State $state) { |
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return $state->getState() === State::BUSY; |
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})); |
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if ($this->callersBusy === $this->callersCount) { |
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$this->state->onNext(State::BUSY); |
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return; |
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} |
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$this->state->onNext(State::WAITING); |
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}); |
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} |
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$this->state->onNext(State::STARTED); |
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} |
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public function call(ObservableInterface $observable): State |
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{ |
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$observable->subscribe(function (Call $call): void { |
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$this->delegateCall($call); |
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}); |
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return $this->state; |
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} |
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public function info(): iterable |
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{ |
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yield 'callers' => $this->callersCount; |
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yield 'busy' => $this->callersBusy; |
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yield 'waiting' => $this->callersCount - $this->callersBusy; |
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} |
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private function delegateCall(Call $call): void |
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{ |
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View Code Duplication |
foreach ($this->callerState as $qcHash => $state) { |
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if ($state->getState() !== State::WAITING) { |
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continue; |
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} |
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$this->callerStream[$qcHash]->onNext($call); |
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return; |
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} |
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$this->state->onNext(State::BUSY); |
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$this->queue[] = $call; |
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} |
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} |
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WyriHaximus /
recoilphp-queue-caller-pool
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.