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<?php |
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namespace Pim\Bundle\ExcelConnectorBundle\Reader; |
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use Akeneo\Component\Batch\Model\StepExecution; |
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use Akeneo\Component\Batch\Item\AbstractConfigurableStepElement; |
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use Akeneo\Component\Batch\Item\ItemReaderInterface; |
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use Akeneo\Component\Batch\Step\StepExecutionAwareInterface; |
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/** |
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* Abstract iterator based reader |
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* |
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* @author Antoine Guigan <[email protected]> |
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* @copyright 2013 Akeneo SAS (http://www.akeneo.com) |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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*/ |
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abstract class AbstractIteratorReader extends AbstractConfigurableStepElement implements ItemReaderInterface, |
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StepExecutionAwareInterface |
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{ |
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/** @var \Iterator */ |
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protected $iterator; |
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/** @var StepExecution */ |
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protected $stepExecution; |
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/** @var boolean */ |
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protected $batchMode; |
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/** |
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* @param boolean $batchMode |
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*/ |
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public function __construct($batchMode = false) |
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{ |
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$this->batchMode = $batchMode; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setStepExecution(StepExecution $stepExecution) |
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{ |
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$this->stepExecution = $stepExecution; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function read() |
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{ |
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if (!isset($this->iterator)) { |
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$this->initializeIterator(); |
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} |
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if (!$this->iterator->valid()) { |
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return null; |
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} |
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$current = $this->iterator->current(); |
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if ($this->stepExecution) { |
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$this->stepExecution->incrementSummaryInfo('read'); |
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} |
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$this->iterator->next(); |
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return $this->convertNumericIdentifierToString($current); |
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} |
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/** |
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* Resets the state of the reader |
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*/ |
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public function reset() |
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{ |
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$this->iterator = null; |
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} |
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/** |
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* Rewinds the iterator if it has already been initialized. |
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* It allows to use the same service in two successive steps |
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* |
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* {@inheritdoc} |
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*/ |
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public function initialize() |
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{ |
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$this->iterator = null; |
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} |
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/** |
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* Converts an entity numerical identifier ('sku' for products, |
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* 'code' for other entities) into string to allow import. |
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* |
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* @param array $item |
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* |
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* @return array |
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*/ |
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protected function convertNumericIdentifierToString(array $item) |
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{ |
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return $item; |
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} |
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/** |
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* Initializes the iterator |
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*/ |
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protected function initializeIterator() |
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{ |
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$this->iterator = $this->createIterator(); |
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if ($this->batchMode) { |
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$this->iterator = new \ArrayIterator(array(iterator_to_array($this->iterator))); |
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} |
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$this->iterator->rewind(); |
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} |
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/** |
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* Creates the iterator |
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* |
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* @return \Iterator |
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*/ |
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abstract protected function createIterator(); |
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} |
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akeneo-labs /
ExcelConnectorBundle
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