/**
* {@inheritdoc}
*
* @param StateMachineInterface $stateMachine
*/
public function load(StateMachineInterface $stateMachine)
{
$stateMachine->setStateAccessor(new PropertyPathStateAccessor($this->config['property_path']));
$stateMachine->setGraph($this->config['graph']);
array_walk($this->config['states'], array($stateMachine, 'addState'));
array_walk($this->config['transitions'], array($stateMachine, 'addTransition'));
}
private function addTransitions(Digraph $graph, StateMachine $stateMachine)
{
foreach ($stateMachine->getStates() as $stateName) {
$state = $stateMachine->getState($stateName);
foreach ($state->getTransitions() as $transitionName) {
$transition = $stateMachine->getTransition($transitionName);
$graph->beginEdge(array($stateName, $transition->getState()), array('label' => $transitionName))->end();
}
}
}
/**
* @param StateMachineInterface $stateMachine
*/
private function loadTransitions(StateMachineInterface $stateMachine)
{
$resolver = new OptionsResolver();
$resolver->setRequired(array('from', 'to'));
$resolver->setOptional(array('guard'));
$resolver->setNormalizers(array('from' => function (Options $options, $v) {
return (array) $v;
}, 'guard' => function (Options $options, $v) {
return !isset($v) ? null : $v;
}));
foreach ($this->config['transitions'] as $transition => $config) {
$config = $resolver->resolve($config);
$stateMachine->addTransition(new Transition($transition, $config['from'], $config['to'], $config['guard']));
}
}
/**
* @param StateMachineInterface $stateMachine
*/
private function loadTransitions(StateMachineInterface $stateMachine)
{
$resolver = new OptionsResolver();
$resolver->setRequired(array('from', 'to'));
$resolver->setDefaults(array('guard' => null, 'configure_properties' => null, 'properties' => array()));
$resolver->setAllowedTypes('configure_properties', array('null', 'callable'));
$resolver->setNormalizer('from', function (Options $options, $v) {
return (array) $v;
});
$resolver->setNormalizer('guard', function (Options $options, $v) {
return !isset($v) ? null : $v;
});
$resolver->setNormalizer('configure_properties', function (Options $options, $v) {
$resolver = new OptionsResolver();
$resolver->setDefaults($options['properties']);
if (is_callable($v)) {
$v($resolver);
}
return $resolver;
});
foreach ($this->config['transitions'] as $transition => $config) {
$config = $resolver->resolve($config);
$stateMachine->addTransition(new Transition($transition, $config['from'], $config['to'], $config['guard'], $config['configure_properties']));
}
}
/**
* @param StateMachineInterface $sm
* @param string $event
* @param callable $callback
* @param array $specs
*
* @return $this
*/
protected function add(StateMachineInterface $sm, $event, $callback, array $specs)
{
$specs = $this->processSpecs($specs);
$listener = function (TransitionEvent $e) use($sm, $callback, $specs) {
if ($sm !== $e->getStateMachine()) {
return;
}
if (!(in_array(CallbackHandler::ALL, $specs['to']) || in_array($e->getTransition()->getState(), $specs['to']))) {
return;
}
if (!(in_array(CallbackHandler::ALL, $specs['from']) || in_array($e->getInitialState()->getName(), $specs['from']))) {
return;
}
if (in_array($e->getTransition()->getState(), $specs['exclude_to'])) {
return;
}
if (in_array($e->getInitialState()->getName(), $specs['exclude_from'])) {
return;
}
call_user_func($callback, $sm->getObject(), $e);
};
$events = array($event);
if (count($specs['on']) > 0 && !in_array(self::ALL, $specs['on'])) {
$events = array_map(function ($v) use($event) {
return $event . '.' . $v;
}, $specs['on']);
}
foreach ($events as $event) {
$this->dispatcher->addListener($event, $listener);
}
return $this;
}
/**
* Adds all transitions as edges.
*
* @param \Finite\StateMachine\StateMachineInterface $stateMachine
*/
private function addEdges(StateMachineInterface $stateMachine)
{
$states = $stateMachine->getStates();
foreach ($states as $sName) {
$state = $stateMachine->getState($sName);
$transitions = $state->getTransitions();
foreach ($transitions as $tName) {
$trans = $stateMachine->getTransition($tName);
$attributes = $this->getEdgeDefaultAttributes($trans);
if ($this->visitors) {
try {
foreach ($this->visitors as $visitor) {
$attributes = $visitor->getEdgeAttributes($attributes, $trans, $state, $stateMachine);
}
} catch (SkipElementException $ex) {
continue;
}
}
$this->graph->beginEdge([$state->getName(), $trans->getState()], $attributes)->end();
}
}
}
/**
* Adds all transitions as edges.
*
* @param \Finite\StateMachine\StateMachineInterface $stateMachine
*/
private function addEdges(StateMachineInterface $stateMachine)
{
$states = $stateMachine->getStates();
foreach ($states as $name) {
$state = $stateMachine->getState($name);
/* @var $state \Finite\State\StateInterface */
$transitions = $state->getTransitions();
foreach ($transitions as $name) {
$trans = $stateMachine->getTransition($name);
/* @var $trans Finite\Transition\TransitionInterface */
$this->graph->beginEdge(array($state->getName(), $trans->getState()), array('label' => $trans->getName()))->end();
}
}
}