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<?php |
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namespace Ddeboer\DataImport\Writer; |
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/** |
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* Class allowing multiple writers to write in same stream |
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* |
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* @author Benoît Burnichon <[email protected]> |
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*/ |
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class StreamMergeWriter extends AbstractStreamWriter |
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{ |
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/** |
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* @var string |
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*/ |
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private $discriminantField = 'discr'; |
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/** |
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* @var AbstractStreamWriter[] |
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*/ |
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private $writers = []; |
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/** |
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* Set discriminant field |
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* |
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* @param string $discriminantField |
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* |
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* @return $this |
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*/ |
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public function setDiscriminantField($discriminantField) |
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{ |
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$this->discriminantField = (string) $discriminantField; |
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return $this; |
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} |
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/** |
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* Get discriminant Field |
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* |
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* @return string |
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*/ |
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public function getDiscriminantField() |
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{ |
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return $this->discriminantField; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function writeItem(array $item) |
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{ |
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if ((isset($item[$this->discriminantField]) |
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|| array_key_exists($this->discriminantField, $item)) |
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&& $this->hasStreamWriter($key = $item[$this->discriminantField]) |
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) { |
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$writer = $this->getStreamWriter($key); |
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$writer->writeItem($item); |
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} |
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} |
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/** |
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* Set stream writers |
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* |
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* @param AbstractStreamWriter[] $writers |
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* |
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* @return $this |
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*/ |
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public function setStreamWriters(array $writers) |
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{ |
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foreach ($writers as $key => $writer) { |
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$this->setStreamWriter($key, $writer); |
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} |
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return $this; |
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} |
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/** |
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* @param string $key |
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* @param AbstractStreamWriter $writer |
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* |
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* @return $this |
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*/ |
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public function setStreamWriter($key, AbstractStreamWriter $writer) |
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{ |
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$writer->setStream($this->getStream()); |
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$writer->setCloseStreamOnFinish(false); |
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$this->writers[$key] = $writer; |
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return $this; |
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} |
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/** |
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* Get a previously registered Writer |
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* |
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* @param string $key |
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* |
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* @return AbstractStreamWriter |
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*/ |
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public function getStreamWriter($key) |
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{ |
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return $this->writers[$key]; |
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} |
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/** |
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* Get list of registered Writers |
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* |
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* @return AbstractStreamWriter[] |
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*/ |
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public function getStreamWriters() |
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{ |
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return $this->writers; |
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} |
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/** |
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* Is a writer registered for key? |
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* |
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* @param string $key |
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* |
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* @return boolean |
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*/ |
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public function hasStreamWriter($key) |
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{ |
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return isset($this->writers[$key]); |
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} |
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/** |
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* Set a stream |
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* |
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* @param resource $stream |
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*/ |
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10 |
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public function setStream($stream) |
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{ |
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parent::setStream($stream); |
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9 |
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foreach ($this->getStreamWriters() as $writer) { |
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$writer->setStream($stream); |
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} |
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return $this; |
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} |
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} |
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ddeboer /
data-import
