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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 8/03/16 |
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* Time: 22:29. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Api\Problem; |
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use Exception; |
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use NilPortugues\Assert\Assert; |
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/** |
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* Object describing an API-Problem payload. |
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*/ |
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class ApiProblem |
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{ |
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const RFC2616 = 'http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html'; |
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/** |
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* Title of the error. |
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* |
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* @var string |
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*/ |
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protected $title; |
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/** |
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* URL describing the problem type; defaults to HTTP status codes. |
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* |
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* @var string |
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*/ |
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protected $type = self::RFC2616; |
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/** |
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* Description of the specific problem. |
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* |
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* @var string |
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*/ |
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protected $detail = ''; |
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/** |
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* HTTP status for the error. |
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* |
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* @var int |
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*/ |
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protected $status; |
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/** |
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* @var array |
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*/ |
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protected $additionalDetails = []; |
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/** |
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* Status titles for common problems. |
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* |
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* @var array |
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*/ |
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protected static $problemStatus = [ |
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// CLIENT ERROR |
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400 => 'Bad Request', |
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401 => 'Unauthorized', |
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402 => 'Payment Required', |
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403 => 'Forbidden', |
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404 => 'Not Found', |
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405 => 'Method Not Allowed', |
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406 => 'Not Acceptable', |
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407 => 'Proxy Authentication Required', |
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408 => 'Request Time-out', |
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409 => 'Conflict', |
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410 => 'Gone', |
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411 => 'Length Required', |
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412 => 'Precondition Failed', |
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413 => 'Request Entity Too Large', |
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414 => 'Request-URI Too Large', |
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415 => 'Unsupported Media Type', |
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416 => 'Requested range not satisfiable', |
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417 => 'Expectation Failed', |
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418 => 'I\'m a teapot', |
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422 => 'Unprocessable Entity', |
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423 => 'Locked', |
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424 => 'Failed Dependency', |
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425 => 'Unordered Collection', |
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426 => 'Upgrade Required', |
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428 => 'Precondition Required', |
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429 => 'Too Many Requests', |
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431 => 'Request Header Fields Too Large', |
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// SERVER ERROR |
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500 => 'Internal Server Error', |
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501 => 'Not Implemented', |
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502 => 'Bad Gateway', |
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503 => 'Service Unavailable', |
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504 => 'Gateway Time-out', |
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505 => 'HTTP Version not supported', |
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506 => 'Variant Also Negotiates', |
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507 => 'Insufficient Storage', |
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508 => 'Loop Detected', |
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511 => 'Network Authentication Required', |
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]; |
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/** |
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* ApiProblem constructor. |
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* |
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* @param $status |
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* @param $detail |
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* @param string $title |
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* @param string $type |
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* @param array $additionalDetails |
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*/ |
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public function __construct($status, $detail, $title = '', $type = '', array $additionalDetails = []) |
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{ |
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$this->setTitle($title); |
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$this->setType($type); |
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$this->setDetail($detail); |
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$this->setStatus($status); |
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$this->setAdditionalDetails($additionalDetails); |
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} |
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/** |
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* @param Exception $exception |
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* @param string $title |
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* @param string $type |
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* @param array $additionalDetails |
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* |
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* @return ApiProblem |
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*/ |
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public static function fromException(Exception $exception, $title = '', $type = '', array $additionalDetails = []) |
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{ |
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$eCode = $exception->getCode(); |
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$code = (!empty($eCode) && is_int($eCode)) ? $eCode : 500; |
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if (0 === strlen($title) && 0 === strlen($type) && array_key_exists($code, self::$problemStatus)) { |
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$title = (self::$problemStatus[$code]); |
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$type = self::RFC2616; |
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} |
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$detail = $exception->getMessage(); |
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if (empty($detail)) { |
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$className = explode('\\', get_class($exception)); |
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$detail = array_pop($className); |
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} |
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return new self($code, $detail, $title, $type, $additionalDetails); |
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} |
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/** |
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* Returns value for `additionalDetails`. |
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* |
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* @return array |
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*/ |
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public function additionalDetails() |
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{ |
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return $this->additionalDetails; |
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} |
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/** |
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* Sets the value for `additionalDetails` property. |
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* |
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* @param array $additionalDetails |
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*/ |
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protected function setAdditionalDetails(array &$additionalDetails) |
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{ |
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Assert::hasKeyFormat($additionalDetails, function ($key) { |
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Assert::isAlpha($key, 'Key requires [A-Za-z] characters only.'); |
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}); |
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$this->additionalDetails = $additionalDetails; |
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} |
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/** |
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* Returns value for `title`. |
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* |
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* @return string |
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*/ |
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public function title() |
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{ |
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return $this->title; |
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} |
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/** |
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* Sets the value for `title` property. |
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* |
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* @param string $title |
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*/ |
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protected function setTitle($title) |
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{ |
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$this->title = $title; |
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} |
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/** |
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* Returns value for `type`. |
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* |
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* @return string |
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*/ |
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public function type() |
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{ |
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return $this->type; |
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} |
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/** |
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* Sets the value for `type` property. |
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* |
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* @param string $type |
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*/ |
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protected function setType($type) |
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{ |
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$this->type = $type; |
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} |
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/** |
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* Returns value for `detail`. |
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* |
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* @return string |
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*/ |
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public function detail() |
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{ |
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return $this->detail; |
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} |
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/** |
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* Sets the value for `detail` property. |
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* |
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* @param string $detail |
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*/ |
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protected function setDetail($detail) |
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{ |
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Assert::notEmpty($detail, 'Detail field cannot be an empty string'); |
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$this->detail = $detail; |
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} |
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/** |
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* Returns value for `status`. |
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* |
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* @return int |
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*/ |
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public function status() |
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{ |
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return $this->status; |
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} |
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/** |
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* Sets the value for `status` property. |
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* |
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* @param int $status |
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*/ |
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protected function setStatus($status) |
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{ |
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Assert::isInteger($status, 'Status must be an integer value'); |
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Assert::contains(array_keys(self::$problemStatus), $status, false, 'Status must be a valid HTTP 4xx or 5xx value.'); |
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$this->status = $status; |
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} |
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} |
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