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<?php |
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namespace Overblog\GraphQLBundle\Resolver; |
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abstract class AbstractResolver implements FluentResolverInterface |
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{ |
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/** @var array */ |
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private $solutions = []; |
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/** @var array */ |
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private $solutionOptions = []; |
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/** @var array */ |
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private $fullyLoadedSolutions = []; |
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public function addSolution($name, callable $solutionFunc, array $solutionFuncArgs = [], array $options = []) |
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{ |
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$this->fullyLoadedSolutions[$name] = false; |
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$this->solutions[$name] = function () use ($name, $solutionFunc, $solutionFuncArgs) { |
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$solution = call_user_func_array($solutionFunc, $solutionFuncArgs); |
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$this->checkSolution($name, $solution); |
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return $solution; |
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}; |
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$this->solutionOptions[$name] = $options; |
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return $this; |
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} |
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public function hasSolution($name) |
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{ |
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return isset($this->solutions[$name]); |
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} |
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/** |
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* @param $name |
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* |
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* @return mixed |
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*/ |
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public function getSolution($name) |
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{ |
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return $this->loadSolution($name); |
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} |
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/** |
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* @return array |
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*/ |
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public function getSolutions() |
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{ |
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return $this->loadSolutions(); |
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} |
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/** |
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* @param $name |
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* |
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* @return mixed |
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*/ |
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public function getSolutionOptions($name) |
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{ |
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return isset($this->solutionOptions[$name]) ? $this->solutionOptions[$name] : []; |
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} |
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/** |
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* @param string $name |
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* |
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* @return mixed |
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*/ |
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private function loadSolution($name) |
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{ |
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if (!$this->hasSolution($name)) { |
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return null; |
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} |
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if ($this->fullyLoadedSolutions[$name]) { |
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return $this->solutions[$name]; |
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} else { |
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$loader = $this->solutions[$name]; |
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$this->solutions[$name] = $loader(); |
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$this->fullyLoadedSolutions[$name] = true; |
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return $this->solutions[$name]; |
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} |
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} |
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/** |
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* @return mixed[] |
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*/ |
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private function loadSolutions() |
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{ |
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foreach ($this->solutions as $name => &$solution) { |
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$solution = $this->loadSolution($name); |
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} |
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return $this->solutions; |
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} |
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/** |
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* @param mixed $solution |
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* |
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* @return bool |
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*/ |
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protected function supportsSolution($solution) |
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{ |
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$supportedClass = $this->supportedSolutionClass(); |
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return null === $supportedClass || $solution instanceof $supportedClass; |
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} |
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protected function checkSolution($name, $solution) |
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{ |
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if (!$this->supportsSolution($solution)) { |
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throw new UnsupportedResolverException( |
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sprintf('Resolver "%s" must be "%s" "%s" given.', $name, $this->supportedSolutionClass(), get_class($solution)) |
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); |
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} |
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} |
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/** |
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* default return null to accept mixed type. |
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* |
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* @return null|string supported class name |
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*/ |
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protected function supportedSolutionClass() |
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{ |
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return; |
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} |
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} |
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overblog /
GraphQLBundle
