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<?php |
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declare( strict_types = 1 ); |
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namespace Wikibase\JsonDumpReader\Iterator; |
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use Deserializers\Deserializer; |
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use Deserializers\Exceptions\DeserializationException; |
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use Iterator; |
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use Wikibase\DataModel\Entity\EntityDocument; |
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/** |
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* Package private |
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* |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class EntityDumpIterator implements Iterator { |
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/** |
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* @var Deserializer |
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*/ |
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private $deserializer; |
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/** |
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* @var Iterator |
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*/ |
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private $dumpIterator; |
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/** |
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* @var callable|null |
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*/ |
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private $errorReporter = null; |
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/** |
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* @var EntityDocument|null |
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*/ |
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private $current = null; |
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public function __construct( Iterator $objectIterator, Deserializer $entityDeserializer ) { |
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$this->dumpIterator = $objectIterator; |
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$this->deserializer = $entityDeserializer; |
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} |
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/** |
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* @param callable|null $errorReporter |
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*/ |
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public function onError( callable $errorReporter = null ) { |
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$this->errorReporter = $errorReporter; |
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} |
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/** |
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* @return EntityDocument|null |
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*/ |
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public function current() { |
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return $this->current; |
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} |
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/** |
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* @return EntityDocument|null |
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*/ |
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public function next() { |
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$this->dumpIterator->next(); |
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$this->getCurrentFromObject(); |
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return $this->current; |
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} |
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private function getCurrentFromObject() { |
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while ( true ) { |
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try { |
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$jsonData = $this->dumpIterator->current(); |
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if ( $jsonData === null ) { |
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$this->current = null; |
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return; |
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} |
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$this->current = $this->deserializer->deserialize( $jsonData ); |
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return; |
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} |
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catch ( DeserializationException $ex ) { |
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$this->reportError( $ex->getMessage() ); |
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$this->dumpIterator->next(); |
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} |
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} |
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} |
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private function reportError( $errorMessage ) { |
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if ( $this->errorReporter !== null ) { |
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call_user_func( $this->errorReporter, $errorMessage ); |
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} |
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} |
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public function key() { |
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return $this->current->getId()->getSerialization(); |
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} |
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public function valid() { |
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return $this->current !== null; |
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} |
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public function rewind() { |
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$this->current = null; |
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$this->dumpIterator->rewind(); |
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$this->getCurrentFromObject(); |
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} |
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} |
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JeroenDeDauw /
JsonDumpReader
