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<?php |
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namespace Metabor\Statemachine; |
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use Metabor\Named; |
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use Metabor\Statemachine\Util\StateCollectionMerger; |
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use MetaborStd\MergeableInterface; |
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use MetaborStd\Statemachine\ProcessInterface; |
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use MetaborStd\Statemachine\StateInterface; |
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use MetaborStd\Statemachine\TransitionInterface; |
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/** |
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* @author Oliver Tischlinger |
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*/ |
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class Process extends Named implements ProcessInterface, MergeableInterface |
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{ |
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/** |
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* @var StateCollection |
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*/ |
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private $states; |
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/** |
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* @var StateInterface |
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*/ |
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private $initialState; |
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/** |
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* @var StateCollectionMerger |
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*/ |
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private $stateCollectionMerger; |
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/** |
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* @param string $name |
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* @param StateInterface $initialState |
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*/ |
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public function __construct($name, StateInterface $initialState) |
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{ |
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parent::__construct($name); |
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$this->initialState = $initialState; |
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$this->createCollection(); |
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} |
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/** |
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* @param StateInterface $state |
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*/ |
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protected function addState(StateInterface $state) |
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{ |
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$name = $state->getName(); |
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if ($this->states->hasState($name)) { |
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if ($this->states->getState($name) !== $state) { |
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throw new \Exception('There is already a different state with name "' . $name . '"'); |
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} |
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} else { |
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$this->states->addState($state); |
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/* @var $transition TransitionInterface */ |
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foreach ($state->getTransitions() as $transition) { |
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$targetState = $transition->getTargetState(); |
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$this->addState($targetState); |
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} |
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} |
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} |
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/** |
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*/ |
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protected function createCollection() |
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{ |
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$this->states = new StateCollection(); |
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$this->addState($this->initialState); |
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} |
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/** |
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* @see MetaborStd\Statemachine.ProcessInterface::getInitialState() |
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*/ |
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public function getInitialState() |
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{ |
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return $this->initialState; |
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} |
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/** |
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* @see MetaborStd\Statemachine.ProcessInterface::getStates() |
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*/ |
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public function getStates() |
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{ |
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return $this->states->getStates(); |
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} |
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/** |
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* @param string $name |
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*/ |
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public function getState($name) |
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{ |
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return $this->states->getState($name); |
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} |
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/** |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function hasState($name) |
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{ |
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return $this->states->hasState($name); |
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} |
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/** |
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* @return StateCollectionMerger |
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*/ |
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public function getStateCollectionMerger() |
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{ |
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if (!$this->stateCollectionMerger) { |
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$this->stateCollectionMerger = new StateCollectionMerger($this->states); |
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} |
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return $this->stateCollectionMerger; |
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} |
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/** |
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* @see \MetaborStd\MergeableInterface::merge() |
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*/ |
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public function merge($source) |
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{ |
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$merger = $this->getStateCollectionMerger(); |
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$merger->merge($source); |
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} |
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} |
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Metabor /
Statemachine
