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<?php |
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namespace Finite\Transition; |
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use Finite\Exception\TransitionException; |
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use Finite\StateMachine\StateMachineInterface; |
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use Finite\State\StateInterface; |
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use Symfony\Component\OptionsResolver\Exception\MissingOptionsException; |
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use Symfony\Component\OptionsResolver\Exception\UndefinedOptionsException; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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/** |
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* The base Transition class. |
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* Feel free to extend it to fit to your needs. |
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* |
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* @author Yohan Giarelli <[email protected]> |
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* @author Michal Dabrowski <[email protected]> |
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*/ |
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class Transition implements PropertiesAwareTransitionInterface |
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{ |
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/** |
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* @var array |
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*/ |
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protected $initialStates; |
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/* |
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* @var string |
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*/ |
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protected $state; |
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/** |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* @var callable |
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*/ |
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protected $guard; |
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/** |
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* @var OptionsResolver |
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*/ |
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protected $propertiesOptionsResolver; |
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/** |
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* @param string $name |
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* @param string|array $initialStates |
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* @param string $state |
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* @param callable|null $guard |
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* @param OptionsResolver $propertiesOptionsResolver |
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*/ |
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public function __construct( |
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$name, |
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$initialStates, |
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$state, |
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$guard = null, |
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OptionsResolver $propertiesOptionsResolver = null |
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) { |
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if (null !== $guard && !is_callable($guard)) { |
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throw new \InvalidArgumentException('Invalid callable guard argument passed to Transition::__construct().'); |
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} |
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$this->name = $name; |
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$this->state = $state; |
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$this->initialStates = (array) $initialStates; |
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$this->guard = $guard; |
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$this->propertiesOptionsResolver = $propertiesOptionsResolver ?: new OptionsResolver(); |
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} |
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/** |
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* @param string|StateInterface $state |
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*/ |
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public function addInitialState($state) |
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{ |
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if ($state instanceof StateInterface) { |
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$state = $state->getName(); |
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} |
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$this->initialStates[] = $state; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getInitialStates() |
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{ |
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return $this->initialStates; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getState() |
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{ |
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return $this->state; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(StateMachineInterface $stateMachine) |
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{ |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* @return callable|null |
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*/ |
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public function getGuard() |
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{ |
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return $this->guard; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function resolveProperties(array $properties) |
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{ |
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try { |
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return $this->propertiesOptionsResolver->resolve($properties); |
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} catch (MissingOptionsException $e) { |
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throw new TransitionException( |
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'Testing or applying this transition need a parameter. Provide it or set it optional.', |
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$e->getCode(), |
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$e |
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); |
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} catch (UndefinedOptionsException $e) { |
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throw new TransitionException( |
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'You provided an unknown property to test() or apply(). Remove it or declare it in your graph.', |
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$e->getCode(), |
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$e |
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); |
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} |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function has($property) |
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{ |
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return array_key_exists($property, $this->getProperties()); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function get($property, $default = null) |
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{ |
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$properties = $this->getProperties(); |
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return $this->has($property) ? $properties[$property] : $default; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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10 |
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public function getProperties() |
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{ |
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$missingOptions = $this->propertiesOptionsResolver->getMissingOptions(); |
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return array_diff_key( |
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$this->propertiesOptionsResolver->resolve( |
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array_combine($missingOptions, array_fill(0, count($missingOptions), null)) |
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), |
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array_combine($missingOptions, $missingOptions) |
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); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return $this->getName(); |
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} |
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} |
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yohang /
Finite
