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<?php |
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namespace drupol\phpartition; |
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class SubsetContainer extends \SplHeap { |
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/** |
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* @var BasePartitionAlgorithm |
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*/ |
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protected $algo; |
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/** |
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* Override compare method. |
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* |
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* @param Subset $a |
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* @param Subset $b |
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* |
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* @return int |
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*/ |
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public function compare($a, $b) { |
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$al = $a->getAlgo()->getSubsetWeight($a); |
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$bl = $b->getAlgo()->getSubsetWeight($b); |
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if ($al == $bl) { |
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return 0; |
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} |
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return ($al > $bl) ? -1 : +1; |
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} |
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/** |
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* @param $partition |
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*/ |
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public function setPartition($partition) { |
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for($i=0; $i<$partition; $i++) { |
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$subset = new Subset(); |
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$subset->setAlgo($this->getAlgo()); |
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$this->insert($subset); |
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} |
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} |
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/** |
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* @param SubsetItem[] $items |
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*/ |
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public function addItemsToSubset(array $items = array()) { |
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foreach($items as $item) { |
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$this->addItemToSubset($item); |
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} |
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} |
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/** |
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* @param \drupol\phpartition\SubsetItem $item |
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*/ |
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public function addItemToSubset(SubsetItem $item) { |
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$this->top(); |
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$subset = $this->extract(); |
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$subset->addItem($item); |
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$this->insert($subset); |
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} |
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/** |
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* @return Subset[] |
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*/ |
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public function getSubsets() { |
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$data = array(); |
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$clone = clone $this; |
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for($clone->top(); $clone->valid(); $clone->next()) { |
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$data[] = $clone->current(); |
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} |
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return $data; |
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} |
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/** |
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* @return array |
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*/ |
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public function getSubsetsAndItemsAsArray() { |
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$data = array(); |
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foreach($this->getSubsets() as $subset) { |
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$data[] = $subset->getRawItems(); |
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} |
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return array_values(array_filter($data)); |
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} |
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/** |
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* @param \drupol\phpartition\BasePartitionAlgorithm $algo |
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*/ |
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public function setAlgo(BasePartitionAlgorithm $algo) { |
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$this->algo = $algo; |
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} |
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/** |
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* @return BasePartitionAlgorithm |
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*/ |
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public function getAlgo() { |
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return $this->algo; |
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} |
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} |
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drupol /
phpartition
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