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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 InfiniteCaller implements QueueCallerPoolInterface |
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{ |
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/** @var Kernel */ |
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private $kernel; |
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/** @var State */ |
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private $state; |
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/** @var QueueCallerInterface[] */ |
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private $callers = []; |
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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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/** |
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* @param Kernel $kernel |
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*/ |
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public function __construct(Kernel $kernel) |
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{ |
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$this->kernel = $kernel; |
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$this->state = new State(); |
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$this->state->onNext(State::WAITING); |
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$this->setUpCaller(); |
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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 $this->state; |
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} |
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public function info(): iterable |
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{ |
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yield 'callers' => \count($this->callers); |
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yield 'busy' => \count($this->callers); |
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yield 'waiting' => 0; // Always zero because we remove waiting callers from the pool immediately |
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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::BUSY && $state->getState() !== State::DONE) { |
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continue; |
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} |
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$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->setUpCaller(); |
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$this->delegateCall($call); |
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} |
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private function setUpCaller(): void |
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{ |
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$stream = new Subject(); |
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$caller = new FiniteCaller($this->kernel, 13); |
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$qcHash = \spl_object_hash($caller); |
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$this->callers[$qcHash] = $caller; |
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$this->callerStream[$qcHash] = $stream; |
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$this->callerState[$qcHash] = $caller->call($stream); |
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$this->callerState[$qcHash]->filter(function (int $state) { |
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return $state === State::WAITING; |
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})->subscribe(function () use ($qcHash): void { |
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$waitingCallers = \array_filter($this->callerState, function (State $state) { |
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return $state->getState() === State::WAITING; |
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}); |
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$waitingCallersCount = \count($waitingCallers); |
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if ($waitingCallersCount === \count($this->callers)) { |
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$this->state->onNext(State::WAITING); |
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} |
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\reset($waitingCallers); |
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for ($i = 1; $i < $waitingCallersCount; $i++) { |
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$this->tearDownCaller(\key($waitingCallers)); |
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\next($waitingCallers); |
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} |
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}); |
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} |
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private function tearDownCaller(string $qcHash): void |
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{ |
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unset( |
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$this->callers[$qcHash], |
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$this->callerStream[$qcHash], |
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$this->callerState[$qcHash] |
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); |
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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.