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<?php |
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namespace PPP\DataModel; |
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use ArrayIterator; |
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use Countable; |
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use InvalidArgumentException; |
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use IteratorAggregate; |
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/** |
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* A list of resources node. |
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* |
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* @licence AGPLv3+ |
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* @author Thomas Pellissier Tanon |
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*/ |
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class ResourceListNode extends AbstractNode implements IteratorAggregate, Countable { |
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/** |
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* @var ResourceNode[] |
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*/ |
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private $resources = array(); |
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/** |
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* @param (ResourceNode|ResourceListNode)[] $resources |
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*/ |
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public function __construct(array $resources = array()) { |
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foreach($resources as $param) { |
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if($param instanceof ResourceNode) { |
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$this->appendResource($param); |
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} else if($param instanceof ResourceListNode) { |
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$this->appendResourceList($param); |
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} else { |
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throw new InvalidArgumentException('A ResourceListNode can only be build from ResourceNode and ResourceListNode'); |
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} |
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} |
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} |
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private function appendResource(ResourceNode $resource) { |
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if(!$this->hasResource($resource)) { |
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$this->resources[] = $resource; |
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} |
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} |
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private function appendResourceList(ResourceListNode $resourceList) { |
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foreach($resourceList as $resource) { |
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$this->appendResource($resource); |
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} |
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} |
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/** |
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* @param ResourceNode $resource |
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* @return bool |
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*/ |
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public function hasResource(ResourceNode $resource) { |
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foreach($this->resources as $resource2) { |
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if($resource->equals($resource2)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @return ResourceNode[] |
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*/ |
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public function toArray() { |
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return $this->resources; |
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} |
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/** |
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* @see AbstractNode::getType |
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*/ |
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public function getType() { |
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return 'list'; |
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} |
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/** |
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* @see AbstractNode::equals |
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*/ |
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public function equals($target) { |
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if(!($target instanceof self) || count($this->resources) !== count($target->resources)) { |
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return false; |
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} |
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$length = count($this->resources); |
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for($i = 0; $i < $length; $i++) { |
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if(!$target->resources[$i]->equals($this->resources[$i])) { |
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return false; |
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} |
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1 |
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} |
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return true; |
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} |
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/** |
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* @see IteratorAggregate::getIterator |
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*/ |
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public function getIterator() { |
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return new ArrayIterator($this->resources); |
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} |
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/** |
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* @see Countable::count |
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*/ |
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3 |
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public function count() { |
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return count($this->resources); |
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} |
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/** |
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* @return bool |
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*/ |
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2 |
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public function isEmpty() { |
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return empty($this->resources); |
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} |
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} |
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ProjetPP /
PPP-datamodel-PHP
