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<?php |
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/****************************************************************************** |
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* Copyright (c) 2017 Constantin Galbenu <[email protected]> * |
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******************************************************************************/ |
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namespace Gica\Cqrs\CodeGeneration; |
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use Gica\CodeAnalysis\MethodListenerDiscovery; |
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use Gica\CodeAnalysis\MethodListenerDiscovery\ClassSorter\ByConstructorDependencySorter; |
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use Gica\CodeAnalysis\MethodListenerDiscovery\ListenerClassValidator\AnyPhpClassIsAccepted; |
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use Gica\CodeAnalysis\MethodListenerDiscovery\MethodListenerMapperWriter; |
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use Gica\Cqrs\Command\CodeAnalysis\AggregateCommandHandlerDetector; |
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use Gica\FileSystem\FileSystemInterface; |
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use Gica\FileSystem\OperatingSystemFileSystem; |
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use Psr\Log\LoggerInterface; |
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class CommandHandlersMapCodeGenerator |
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{ |
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public function generate( |
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LoggerInterface $logger, |
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FileSystemInterface $fileSystem = null, |
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string $commandSubscriberTemplateClassName, |
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string $searchDirectory, |
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string $outputFilePath, |
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string $outputShortClassName = 'CommandHandlerSubscriber') |
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{ |
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$fileSystem = $fileSystem ?? new OperatingSystemFileSystem(); |
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$classInfo = new \ReflectionClass($commandSubscriberTemplateClassName); |
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$classInfo->getShortName(); |
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$this->deleteFileIfExists($fileSystem, $outputFilePath); |
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$discoverer = new MethodListenerDiscovery( |
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new AggregateCommandHandlerDetector(), |
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new AnyPhpClassIsAccepted, |
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new ByConstructorDependencySorter()); |
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$discoverer->discoverListeners($searchDirectory); |
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$map = $discoverer->getEventToListenerMap(); |
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$this->validateMap($map); |
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$writer = new MethodListenerMapperWriter(); |
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$template = file_get_contents($classInfo->getFileName()); |
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$template = str_replace($classInfo->getShortName() /*CommandSubscriberTemplate*/, $outputShortClassName /*CommandHandlerSubscriber*/, $template); |
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$template = str_replace('--- This is just a template ---', '--- generated by ' . __FILE__ . ' at ' . date('c') . ' ---', $template); |
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$code = $writer->generateAndGetFileContents($map, $template); |
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$fileSystem->filePutContents($outputFilePath, $code); |
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$fileSystem->fileSetPermissions($outputFilePath, 0777); |
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$logger->info("Commands map wrote to: $outputFilePath (searched in $searchDirectory)"); |
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} |
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private function deleteFileIfExists(FileSystemInterface $fileSystem, string $outputFilePath) |
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{ |
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try { |
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$fileSystem->fileDelete($outputFilePath); |
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} catch (\Exception $exception) { |
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} |
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} |
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private function validateMap(array $map) |
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{ |
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foreach ($map as $command => $commandHandlers) { |
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if (count($commandHandlers) > 1) { |
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throw new \Exception( |
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sprintf("multiple handlers exists for command %s", $command)); |
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} |
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} |
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} |
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} |
xprt64 /
cqrs-es
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