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<?php |
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/* |
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* This file is part of Transfer. |
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* |
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* For the full copyright and license information, please view the LICENSE file located |
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* in the root directory. |
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*/ |
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namespace Transfer\Adapter; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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use Transfer\Adapter\Transaction\Iterator\CallbackIterator; |
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use Transfer\Adapter\Transaction\Request; |
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use Transfer\Adapter\Transaction\Response; |
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use Transfer\Data\ValueObject; |
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/** |
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* Local directory adapter functioning as a source. |
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*/ |
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class LocalDirectoryAdapter implements SourceAdapterInterface |
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{ |
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/** |
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* @var array Option collection |
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*/ |
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private $options; |
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/** |
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* @var string Directory to read |
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*/ |
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private $directory; |
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/** |
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* @var array Found files |
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*/ |
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private $fileNames; |
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/** |
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* @param array $options Options |
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*/ |
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public function __construct(array $options = array()) |
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{ |
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$resolver = new OptionsResolver(); |
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$this->configureOptions($resolver); |
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$this->options = $resolver->resolve($options); |
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} |
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/** |
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* Configures options. |
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* |
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* @param OptionsResolver $resolver |
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*/ |
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protected function configureOptions(OptionsResolver $resolver) |
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{ |
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$resolver->setRequired(array('directory')); |
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$resolver->setAllowedTypes('directory', 'string'); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function receive(Request $request) |
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{ |
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$this->directory = $this->options['directory']; |
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$this->fileNames = array_values(array_diff(scandir($this->directory), array('..', '.'))); |
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$response = new Response( |
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new CallbackIterator(array($this, 'validCallback'), array($this, 'currentCallback')) |
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); |
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return $response; |
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} |
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/** |
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* Checks whether there are more files left. |
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* |
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* @param CallbackIterator $iterator |
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* |
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* @return bool |
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*/ |
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public function validCallback(CallbackIterator $iterator) |
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{ |
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return (bool) array_key_exists($iterator->key(), $this->fileNames); |
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} |
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/** |
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* Returns a file object. |
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* |
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* @param CallbackIterator $iterator |
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* |
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* @return ValueObject |
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*/ |
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public function currentCallback(CallbackIterator $iterator) |
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{ |
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$clientFilename = $this->fileNames[$iterator->key()]; |
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$filename = $this->directory.DIRECTORY_SEPARATOR.$clientFilename; |
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$fileObject = new ValueObject(file_get_contents($filename)); |
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$fileObject->setProperty('filename', $filename); |
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$fileObject->setProperty('client_filename', $clientFilename); |
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return $fileObject; |
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} |
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} |
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transfer-framework /
transfer
