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<?php |
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declare(strict_types = 1); |
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namespace drupol\phpartition; |
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use drupol\phpartition\Contract\PartitionerInterface; |
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use drupol\phpartition\Contract\Weightable; |
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use drupol\phpartition\Partition\Partition; |
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use drupol\phpartition\Partition\PartitionItemFactory; |
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use drupol\phpartition\Partitions\Partitions; |
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use drupol\phpartition\Partitions\PartitionsFactory; |
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/** |
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* Class Partitioner. |
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*/ |
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abstract class Partitioner implements PartitionerInterface |
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{ |
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/** |
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* @var \Traversable |
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*/ |
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protected $dataset; |
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/** |
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* @var PartitionItemFactory |
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*/ |
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private $partitionItemFactory; |
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/** |
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* @var PartitionsFactory |
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*/ |
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private $partitionsFactory; |
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/** |
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* {@inheritdoc} |
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*/ |
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abstract public function add(...$values); |
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/** |
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* {@inheritdoc} |
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*/ |
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final public function export(int $chunks = 1) |
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{ |
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$partitions = $this->getPartitionsFactory()::create($chunks); |
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$datas = \array_map( |
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function ($data) { |
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return $this->toPartitionItem($data); |
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}, |
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\iterator_to_array($this->getDataset()) |
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); |
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$this->fillPartitions($partitions, $datas, $chunks); |
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return \array_map( |
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static function (Partition $partition) { |
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return \array_values($partition->exportArrayCopy()); |
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}, |
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$partitions->partitions() |
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); |
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} |
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/** |
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* @return \Traversable |
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*/ |
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public function getDataset() |
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{ |
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return $this->dataset; |
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} |
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/** |
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* @return \drupol\phpartition\Partition\PartitionItemFactory |
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*/ |
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public function getPartitionItemFactory() |
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{ |
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return $this->partitionItemFactory ?? new PartitionItemFactory(); |
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} |
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/** |
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* @return \drupol\phpartition\Partitions\PartitionsFactory |
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*/ |
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public function getPartitionsFactory() |
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{ |
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return $this->partitionsFactory ?? new PartitionsFactory(); |
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} |
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/** |
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* @param array $dataset |
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* |
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* @return PartitionerInterface |
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*/ |
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final public function setDataset(array $dataset) |
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{ |
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foreach ($dataset as $value) { |
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$this->add($value); |
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} |
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return $this; |
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} |
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/** |
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* @param mixed $originalItem |
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* |
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* @return \drupol\phpartition\Contract\Weightable |
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*/ |
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public function toPartitionItem($originalItem): Weightable |
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{ |
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if ($originalItem instanceof Weightable) { |
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return $originalItem; |
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} |
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return $this->getPartitionItemFactory()::create($originalItem); |
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} |
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/** |
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* @param \drupol\phpartition\Partitions\Partitions $partitions |
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* @param array $datas |
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* @param int $chunks |
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*/ |
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abstract protected function fillPartitions(Partitions $partitions, array $datas, int $chunks): void; |
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} |
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drupol /
phpartition
