/**
* Checks is transition allowed (by guards etc)
*
* @param ContextInterface $context
* @param TransitionInterface $transition
* @return bool
*/
private function isTransitionAllowed(ContextInterface $context, TransitionInterface $transition)
{
if (!$transition->hasGuard()) {
return true;
}
return call_user_func($transition->getGuard(), $context);
}
/**
* Add transition
*
* @param \FSM\Transition\TransitionInterface $transition
* @param \FSM\State\StateInterface $sourceState
* @param \FSM\State\StateInterface $targetState
* @return \FSM\AbstractClient
*/
public function addTransition(TransitionInterface $transition, StateInterface $sourceState, StateInterface $targetState)
{
if (!$transition->getName()) {
throw new ClientInitializationException("Can not register transition without a name.");
} elseif ($this->getTransitionByName($transition->getName()) !== null) {
throw new ClientInitializationException("Can not register transition. The transition with the same name already exists.");
} elseif (!array_search($sourceState, $this->states) || !array_search($targetState, $this->states)) {
throw new ClientInitializationException("Can not register transition. Wrong state selected as an end point.");
}
// Add source and target states
try {
$transition->setSourceState($sourceState);
$transition->setTargetState($targetState);
} catch (\Exception $ex) {
throw new ComponentConfigurationException("Can not assign source", 0, $ex);
}
$this->transitions[$transition->getName()] = $transition;
return $this;
}