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<?php |
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/** |
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* This file is part of the BEAR.Resource package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace BEAR\Resource; |
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use BEAR\Resource\Annotation\ResourceParam; |
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use BEAR\Resource\Exception\ParameterException; |
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use Doctrine\Common\Annotations\Reader; |
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use Doctrine\Common\Cache\Cache; |
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use Ray\Di\Di\Assisted; |
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use Ray\Di\InjectorInterface; |
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final class NamedParameter implements NamedParameterInterface |
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{ |
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/** |
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* @var Cache |
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*/ |
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private $cache; |
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/** |
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* @var Reader |
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*/ |
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private $reader; |
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/** |
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* @var InjectorInterface |
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*/ |
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private $injector; |
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public function __construct(Cache $cache, Reader $reader, InjectorInterface $injector) |
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{ |
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$this->cache = $cache; |
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$this->reader = $reader; |
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$this->injector = $injector; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getParameters(array $callable, array $query) |
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{ |
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$id = __CLASS__ . get_class($callable[0]) . $callable[1]; |
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$names = $this->cache->fetch($id); |
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if (! $names) { |
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$names = $this->getNamedParamMetas($callable); |
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$this->cache->save($id, $names); |
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} |
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$parameters = $this->handleParams($query, $names); |
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return $parameters; |
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} |
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/** |
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* Return named parameter information |
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* |
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* @param array $callable |
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* |
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* @return array |
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*/ |
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private function getNamedParamMetas(array $callable) |
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{ |
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$method = new \ReflectionMethod($callable[0], $callable[1]); |
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$parameters = $method->getParameters(); |
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$names = []; |
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foreach ($parameters as $parameter) { |
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$default = $parameter->isDefaultValueAvailable() === true ? $parameter->getDefaultValue() : new Param(get_class($callable[0]), $callable[1], $parameter->name); |
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$names[$parameter->name] = $default; |
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} |
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$annotations = $this->reader->getMethodAnnotations($method); |
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foreach ($annotations as $annotation) { |
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if ($annotation instanceof ResourceParam) { |
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$names[$annotation->param] = $annotation; |
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} |
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if ($annotation instanceof Assisted) { |
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/* @var $annotation Assisted */ |
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1 |
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foreach ($annotation->values as $assistedParam) { |
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$names[$assistedParam] = $annotation; |
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} |
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} |
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} |
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return $names; |
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} |
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/** |
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* @param string[] $query caller value |
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* @param string[] $names default value ['param-name' => 'param-type|param-value'] |
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* |
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* @return array |
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*/ |
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private function handleParams(array $query, array $names) |
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{ |
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$parameters = []; |
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foreach ($names as $name => $param) { |
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// @ResourceParam value |
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if ($param instanceof ResourceParam) { |
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$parameters[] = $this->getResourceParam($param, $query); |
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continue; |
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} |
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// @Assisted (method injection) value |
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if ($param instanceof Assisted) { |
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1 |
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$parameters[] = null; |
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continue; |
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} |
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// query value |
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if (isset($query[$name])) { |
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$parameters[] = $query[$name]; |
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continue; |
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} |
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// default value |
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if (is_scalar($param) || $param === null) { |
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$parameters[] = $param; |
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continue; |
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} |
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throw new ParameterException($name); |
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} |
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return $parameters; |
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} |
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/** |
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* @param ResourceParam $resourceParam |
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* @param array $query |
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* |
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* @return mixed |
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*/ |
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private function getResourceParam(ResourceParam $resourceParam, array $query) |
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{ |
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$uri = $resourceParam->templated === true ? uri_template($resourceParam->uri, $query) : $resourceParam->uri; |
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$resource = $this->injector->getInstance(ResourceInterface::class); |
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$resourceResult = $resource->get->uri($uri)->eager->request(); |
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$fragment = parse_url($uri, PHP_URL_FRAGMENT); |
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return $resourceResult[$fragment]; |
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} |
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} |
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bearsunday /
BEAR.Resource
