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<?php |
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namespace Aeq\Hal\Explorer; |
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use Aeq\Hal\Explorer; |
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use Aeq\Hal\Explorer\Resource as HalResource; |
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use Aeq\Hal\Exception\AlreadyEmbeddedException; |
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use QL\UriTemplate\UriTemplate; |
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class Link implements LinkInterface |
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{ |
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/** |
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* @var Explorer |
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*/ |
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protected $explorer; |
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/** |
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* @var array |
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*/ |
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protected $data; |
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/** |
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* @var EmbeddableInterface |
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*/ |
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protected $parent; |
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/** |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* @param Explorer $explorer |
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* @param string $name |
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* @param array $data |
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* @param EmbeddableInterface $parent |
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*/ |
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public function __construct(Explorer $explorer, $name, array $data, EmbeddableInterface $parent) |
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{ |
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$this->explorer = $explorer; |
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$this->data = $data; |
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$this->name = $name; |
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$this->parent = $parent; |
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} |
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/** |
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* @param array $variables |
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* @param array $options |
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* @return HalResource|ResourceCollection |
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* @throws AlreadyEmbeddedException |
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*/ |
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public function follow(array $variables = [], array $options = []) |
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{ |
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if ($this->parent->hasEmbedded($this->name)) { |
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throw new AlreadyEmbeddedException( |
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sprintf('A link "%s" is already embedded. Try getting the embedded resource and reload it.'), |
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1460663670 |
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); |
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} |
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$resource = $this->request($variables, $options); |
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$this->parent->addEmbedded($this->name, $resource); |
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return $resource; |
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} |
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/** |
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* @return array |
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*/ |
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public function getData() |
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{ |
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return $this->data; |
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} |
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/** |
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* @param array $variables |
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* @param array $options |
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* @return HalResource|ResourceCollection |
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*/ |
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private function request(array $variables = [], array $options = []) |
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{ |
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$response = $this->explorer->request('GET', $this->getUri($variables), $options); |
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$resource = $this->explorer->explore($response); |
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return $resource; |
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} |
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/** |
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* @param array $variables |
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* @return string |
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*/ |
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private function getUri(array $variables) |
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{ |
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if (isset($this->data['templated']) && true === $this->data['templated']) { |
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$uri = new UriTemplate($this->data['href']); |
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return $uri->expand($variables); |
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} |
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return $this->data['href']; |
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} |
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} |
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kschu91 /
hal
