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<?php |
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namespace TreeHouse\Feeder\Reader; |
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use Symfony\Component\HttpFoundation\ParameterBag; |
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use TreeHouse\Feeder\Exception\ReadException; |
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use TreeHouse\Feeder\Resource\ResourceInterface; |
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class JsonLinesReader extends AbstractReader |
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{ |
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/** |
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* @var \SplFileObject |
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*/ |
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protected $fileObject; |
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/** |
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* Serializes a read item into a ParameterBag. |
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* |
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* @param string $data |
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* |
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* @return ParameterBag |
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* |
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* @throws ReadException |
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*/ |
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protected function serialize($data) |
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{ |
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if ('' === trim($data)) { |
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return null; |
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} |
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if (null === $result = json_decode($data, true)) { |
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if (json_last_error() !== JSON_ERROR_NONE) { |
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throw new ReadException(json_last_error_msg(), json_last_error()); |
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} |
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} |
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return new ParameterBag($result); |
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} |
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/** |
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* Creates a reader for a resource. |
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* |
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* @param ResourceInterface $resource |
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*/ |
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protected function createReader(ResourceInterface $resource) |
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{ |
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$jsonFile = $resource->getFile()->getPathname(); |
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$this->fileObject = new \SplFileObject($jsonFile); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doKey() |
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{ |
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return $this->fileObject->key(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doCurrent() |
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{ |
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return $this->fileObject->current(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doNext() |
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{ |
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$this->fileObject->next(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doValid() |
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{ |
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return $this->fileObject->valid(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function doRewind() |
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{ |
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$this->fileObject->rewind(); |
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} |
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} |
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treehouselabs /
feeder
