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<?php |
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declare(strict_types=1); |
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namespace Oliverde8\Component\PhpEtl\ChainOperation\Extract; |
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use Oliverde8\Component\PhpEtl\ChainOperation\AbstractChainOperation; |
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use Oliverde8\Component\PhpEtl\ChainOperation\DataChainOperationInterface; |
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use Oliverde8\Component\PhpEtl\Item\DataItemInterface; |
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use Oliverde8\Component\PhpEtl\Item\ExternalFileItem; |
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use Oliverde8\Component\PhpEtl\Item\ItemInterface; |
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use Oliverde8\Component\PhpEtl\Item\MixItem; |
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use Oliverde8\Component\PhpEtl\Model\ExecutionContext; |
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use Oliverde8\Component\PhpEtl\Model\File\FileSystemInterface; |
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use Symfony\Component\ExpressionLanguage\ExpressionLanguage; |
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class ExternalFileFinderOperation extends AbstractChainOperation implements DataChainOperationInterface |
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{ |
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protected FileSystemInterface $fileSystem; |
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protected string $directory; |
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private ExpressionLanguage $expressionLanguage; |
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public function __construct(FileSystemInterface $fileSystem, string $directory) |
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{ |
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$this->fileSystem = $fileSystem; |
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$this->directory = $directory; |
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$this->expressionLanguage = new ExpressionLanguage(); |
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} |
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function processData(DataItemInterface $item, ExecutionContext $context): ItemInterface |
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{ |
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$pattern = $item->getData(); |
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$files = []; |
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if (strpos($this->directory, "@") === 0) { |
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$directory = ltrim($this->directory, '@'); |
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$directory = $this->expressionLanguage->evaluate($directory, ['context' => $context->getParameters()]); |
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} |
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foreach ($this->fileSystem->listContents($directory) as $file) { |
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if (preg_match($pattern, $file) !== 0) { |
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$files[] = new ExternalFileItem($directory . "/" . $file, $this->fileSystem); |
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} |
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} |
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return new MixItem($files); |
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} |
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} |
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oliverde8 /
php-etl
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.