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<?php |
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namespace rtens\domin; |
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use rtens\domin\delivery\FieldRegistry; |
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use rtens\domin\delivery\ParameterReader; |
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use rtens\domin\execution\ExecutionResult; |
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use rtens\domin\execution\FailedResult; |
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use rtens\domin\execution\MissingParametersResult; |
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use rtens\domin\execution\NoResult; |
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use rtens\domin\execution\NotPermittedResult; |
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use rtens\domin\execution\ValueResult; |
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class Executor { |
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/** @var ActionRegistry */ |
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private $actions; |
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/** @var FieldRegistry */ |
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private $fields; |
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/** @var ParameterReader */ |
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private $paramReader; |
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/** @var null|AccessControl */ |
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private $access; |
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/** |
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* @param ActionRegistry $actions <- |
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* @param FieldRegistry $fields <- |
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* @param ParameterReader $reader <- |
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*/ |
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public function __construct(ActionRegistry $actions, FieldRegistry $fields, ParameterReader $reader) { |
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$this->actions = $actions; |
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$this->fields = $fields; |
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$this->paramReader = $reader; |
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} |
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public function restrictAccess(AccessControl $access) { |
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$this->access = $access; |
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} |
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/** |
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* @param $id |
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* @return ExecutionResult |
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*/ |
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public function execute($id) { |
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try { |
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$action = $this->actions->getAction($id); |
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list($params, $missing) = $this->readParameters($action); |
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if (!empty($missing)) { |
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return new MissingParametersResult($missing); |
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} |
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if ($this->access && !$this->access->isExecutionPermitted($id, $params)) { |
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return new NotPermittedResult(); |
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} |
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$returned = $action->execute($params); |
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if (is_null($returned)) { |
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return new NoResult(); |
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} else if ($returned instanceof ExecutionResult) { |
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return $returned; |
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} else { |
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return new ValueResult($returned); |
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} |
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} catch (\Exception $e) { |
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return new FailedResult($e); |
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} |
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} |
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private function readParameters(Action $action) { |
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$failed = []; |
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$params = []; |
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foreach ($action->parameters() as $parameter) { |
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try { |
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$params[$parameter->getName()] = $this->inflate($parameter); |
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} catch (\Exception $e) { |
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$failed[$parameter->getName()] = $e; |
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} |
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} |
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return [$params, $failed]; |
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} |
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private function inflate(Parameter $parameter) { |
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if ($this->paramReader->has($parameter)) { |
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$inflated = $this->fields->getField($parameter) |
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->inflate($parameter, $this->paramReader->read($parameter)); |
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if ($parameter->getType()->is($inflated)) { |
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return $inflated; |
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} |
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} |
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if ($parameter->isRequired()) { |
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throw new \Exception("[{$parameter->getName()}] is required."); |
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} |
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return null; |
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} |
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} |
rtens /
domin
