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<?php |
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namespace Gendoria\CommandQueue\Worker; |
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use Exception; |
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use Gendoria\CommandQueue\Command\CommandInterface; |
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use Gendoria\CommandQueue\CommandProcessor\CommandProcessorInterface; |
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use Gendoria\CommandQueue\ProcessorFactory; |
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use Gendoria\CommandQueue\ProcessorFactoryInterface; |
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use Gendoria\CommandQueue\ProcessorNotFoundException; |
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use Gendoria\CommandQueue\Worker\Exception\ProcessorErrorException; |
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use Gendoria\CommandQueue\Worker\Exception\TranslateErrorException; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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/** |
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* Base command queue worker |
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* |
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* @author Tomasz Struczyński <[email protected]> |
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*/ |
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abstract class BaseWorker implements WorkerInterface |
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{ |
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/** |
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* Processor factory instance. |
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* |
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* @var ProcessorFactoryInterface |
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*/ |
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private $processorFactory; |
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/** |
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* Logger instance. |
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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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* Class constructor. |
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* |
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* @param ProcessorFactoryInterface $processorFactory |
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* @param LoggerInterface $logger Logger instance. |
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*/ |
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public function __construct(ProcessorFactoryInterface $processorFactory, LoggerInterface $logger = null) |
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{ |
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$this->processorFactory = $processorFactory; |
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$this->logger = $logger ? $logger : new NullLogger(); |
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} |
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/** |
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* |
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* @param mixed $commandData |
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* @return void |
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* |
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* @throws TranslateErrorException Thrown, when translation process resulted in an error. |
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* @throws ProcessorNotFoundException Thrown, when processor for given command has not been found. |
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* @throws ProcessorErrorException Thrown, when processor resulted in an error. |
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*/ |
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public function process($commandData) |
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{ |
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$this->beforeTranslateHook($commandData); |
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try { |
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$command = $this->translateCommand($commandData); |
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} catch (Exception $e) { |
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throw new TranslateErrorException($commandData, $e->getMessage(), $e->getCode(), $e); |
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} |
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$this->beforeGetProcessorHook($command); |
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$processor = $this->getProcessor($command); |
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$this->beforeProcessHook($command, $processor); |
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try { |
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$processor->process($command); |
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} catch (Exception $e) { |
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throw new ProcessorErrorException($command, $processor, $e->getMessage(), $e->getCode(), $e); |
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} |
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$this->afterProcessHook($command, $processor); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getProcessor(CommandInterface $command) |
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{ |
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$processor = $this->processorFactory->getProcessor($command); |
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$processor->setLogger($this->logger); |
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return $processor; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setProcessorFactory(ProcessorFactoryInterface $processorFactory) |
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{ |
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$this->processorFactory = $processorFactory; |
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} |
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/** |
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* Get command from command data. |
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* |
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* @param mixed $commandData |
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* |
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* @return CommandInterface |
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* @throws \Exception Thrown, when translation has been unsuccessfull. |
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*/ |
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protected abstract function translateCommand($commandData); |
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/** |
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* Hook called before command translation. |
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* |
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* @param string $commandData |
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* @return void |
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*/ |
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protected function beforeTranslateHook(&$commandData) |
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{ |
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} |
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/** |
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* Hook called before getting processor for command. |
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* |
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* @param CommandInterface $command |
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* @return void |
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*/ |
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protected function beforeGetProcessorHook(CommandInterface $command) |
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{ |
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} |
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/** |
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* Hook called before processing command. |
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* |
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* @param CommandInterface $command |
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* @return void |
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*/ |
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protected function beforeProcessHook(CommandInterface $command, CommandProcessorInterface $processor) |
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{ |
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} |
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/** |
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* Hook called after successfull processing of command. |
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* |
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* @param CommandInterface $command |
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* @param CommandProcessorInterface $processor |
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* @return void |
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*/ |
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protected function afterProcessHook(CommandInterface $command, CommandProcessorInterface $processor) |
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{ |
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} |
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} |
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Gendoria /
command-queue
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