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<?php |
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/* |
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* This file is part of the JVal package. |
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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 JVal; |
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/** |
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* Stores data related to a particular validation task (default schema version, |
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* accumulated violations, current path, etc.). |
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*/ |
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class Context |
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{ |
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/** |
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* @var array |
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*/ |
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private $violations = []; |
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/** |
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* @var array |
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*/ |
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private $pathSegments = []; |
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/** |
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* @var int |
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*/ |
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private $pathLength = 0; |
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/** |
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* Pushes a path segment onto the context stack, making it the current |
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* visited node. |
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* |
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* @param string $pathSegment |
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*/ |
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public function enterNode($pathSegment) |
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{ |
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$this->pathSegments[$this->pathLength++] = $pathSegment; |
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} |
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/** |
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* Leaves the current node and enters another node located at the same |
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* depth in the hierarchy. |
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* |
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* @param string $pathSegment |
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*/ |
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public function enterSibling($pathSegment) |
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{ |
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$this->pathSegments[$this->pathLength - 1] = $pathSegment; |
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} |
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/** |
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* Removes the current node from the context stack, thus returning to the |
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* previous (parent) node. |
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*/ |
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public function leaveNode() |
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{ |
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if ($this->pathLength === 0) { |
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throw new \LogicException('Cannot leave node'); |
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} |
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$this->pathLength--; |
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} |
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/** |
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* Returns the path of the current node. |
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* |
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* @return string |
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*/ |
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public function getCurrentPath() |
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{ |
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$this->pathSegments = array_slice($this->pathSegments, 0, $this->pathLength); |
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return $this->pathLength ? '/'.implode('/', $this->pathSegments) : ''; |
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} |
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/** |
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* Adds a violation message for the current node. |
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* |
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* @param string $message |
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* @param array $parameters |
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*/ |
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public function addViolation($message, array $parameters = []) |
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{ |
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$this->violations[] = [ |
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'path' => $this->getCurrentPath(), |
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'message' => vsprintf($message, $parameters), |
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]; |
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} |
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/** |
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* Returns the list of accumulated violations. |
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* |
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* @return array |
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*/ |
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public function getViolations() |
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{ |
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return $this->violations; |
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} |
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/** |
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* Returns the number of accumulated violations. |
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* |
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* @return int |
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*/ |
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public function countViolations() |
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{ |
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return count($this->violations); |
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} |
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/** |
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* Returns a copy of the context, optionally purged of its |
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* accumulated violations. |
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* |
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* @param bool $withViolations |
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* @return Context |
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*/ |
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public function duplicate($withViolations = true) |
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{ |
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// cloning as long as the context doesn't hold object references |
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$clone = clone $this; |
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if (!$withViolations) { |
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$clone->purgeViolations(); |
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} |
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return $clone; |
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} |
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/** |
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* Merges the current violations with the violations stored in |
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* another context. |
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* |
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* @param Context $context |
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*/ |
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public function mergeViolations(Context $context) |
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{ |
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$this->violations = array_merge($this->violations, $context->getViolations()); |
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} |
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/** |
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* Deletes the list of accumulated violations. |
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*/ |
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21 |
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public function purgeViolations() |
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{ |
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$this->violations = []; |
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} |
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} |
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stefk /
JVal
