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<?php |
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namespace Saxulum\ProcessesExecutor; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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use Symfony\Component\Process\Process; |
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final class ProcessesExecutor implements ProcessesExecutorInterface |
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{ |
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/** |
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* @var LoggerInterface |
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*/ |
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private $logger; |
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/** |
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* @param LoggerInterface|null $logger |
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*/ |
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public function __construct(LoggerInterface $logger = null) |
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{ |
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$this->logger = $logger ?? new NullLogger(); |
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} |
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/** |
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* @param Process[]|array $processes |
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* @param callable|null $startCallback |
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* @param callable|null $iterationCallback |
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* @param callable|null $finishCallback |
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* @param int $parallelProcessCount |
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* @param int $iterationSleepInMicroseconds |
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*/ |
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public function execute( |
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array $processes, |
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callable $startCallback = null, |
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callable $iterationCallback = null, |
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callable $finishCallback = null, |
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int $parallelProcessCount = 8, |
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int $iterationSleepInMicroseconds = 0 |
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) { |
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$this->logger->info(self::LOG_START); |
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/** @var Process[]|array $parallelProcesses */ |
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$parallelProcesses = []; |
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do { |
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foreach ($parallelProcesses as $key => $process) { |
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if (false === $process->isRunning()) { |
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$this->finishCallback($process, $key, $finishCallback); |
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unset($parallelProcesses[$key]); |
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} |
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} |
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while (count($parallelProcesses) < $parallelProcessCount) { |
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if (null !== $key = key($processes)) { |
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$process = current($processes); |
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$process->start(); |
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$this->startCallback($process, $key, $startCallback); |
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$parallelProcesses[$key] = $process; |
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next($processes); |
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} else { |
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break; |
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} |
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} |
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usleep($iterationSleepInMicroseconds); |
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$this->callIterationCallback($parallelProcesses, $iterationCallback); |
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} while ([] !== $parallelProcesses); |
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$this->logger->info(self::LOG_FINISHED); |
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} |
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/** |
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* @param Process $process |
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* @param mixed $key |
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* @param callable|null $startCallback |
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*/ |
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6 |
View Code Duplication |
private function startCallback(Process $process, $key, callable $startCallback = null) |
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{ |
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if (null === $startCallback) { |
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return; |
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} |
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$this->logger->debug(self::LOG_START_START_CALLBACK, ['process' => $process, 'key' => $key]); |
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$startCallback($process, $key); |
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$this->logger->debug(self::LOG_STOP_START_CALLBACK, ['process' => $process, 'key' => $key]); |
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} |
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/** |
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* @param Process[]|array $processes |
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* @param callable|null $iterationCallback |
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*/ |
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private function callIterationCallback(array $processes, callable $iterationCallback = null) |
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{ |
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if (null === $iterationCallback) { |
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return; |
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} |
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$this->logger->debug(self::LOG_START_ITERATION_CALLBACK, ['processes' => $processes]); |
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$iterationCallback($processes); |
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$this->logger->debug(self::LOG_STOP_ITERATION_CALLBACK, ['processes' => $processes]); |
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} |
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/** |
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* @param Process $process |
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* @param mixed $key |
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* @param callable|null $finishCallback |
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*/ |
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6 |
View Code Duplication |
private function finishCallback(Process $process, $key, callable $finishCallback = null) |
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{ |
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if (null === $finishCallback) { |
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return; |
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} |
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$this->logger->debug(self::LOG_START_FINISH_CALLBACK, ['process' => $process, 'key' => $key]); |
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$finishCallback($process, $key); |
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$this->logger->debug(self::LOG_STOP_FINISH_CALLBACK, ['process' => $process, 'key' => $key]); |
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} |
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} |
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saxulum /
saxulum-processes-executor
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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.