/**
* @param StateInterface $state
*/
protected function addState(StateInterface $state)
{
$name = $state->getName();
if ($this->states->hasState($name)) {
if ($this->states->getState($name) !== $state) {
throw new \Exception('There is already a different state with name "' . $name . '"');
}
} else {
$this->states->addState($state);
/* @var $transition TransitionInterface */
foreach ($state->getTransitions() as $transition) {
$targetState = $transition->getTargetState();
$this->addState($targetState);
}
}
}
/**
* @param DispatcherInterface $dispatcher
* @param string $name
* @param \ArrayAccess $context
*
* @throws \RuntimeException
*/
public function dispatchEvent(DispatcherInterface $dispatcher, $name, \ArrayAccess $context = null)
{
if ($this->dispatcher) {
throw new \RuntimeException('Event dispatching is still running!');
} else {
if ($this->currentState->hasEvent($name)) {
$this->dispatcher = $dispatcher;
if ($context) {
$this->currentContext = $context;
} else {
$this->currentContext = new \ArrayIterator(array());
}
$this->currentEvent = $this->currentState->getEvent($name);
$dispatcher->dispatch($this->currentEvent, array($this->subject, $this->currentContext), new Callback(array($this, 'onDispatcherReady')));
} else {
throw new \RuntimeException('Current state "' . $this->currentState->getName() . '" did not have event "' . $name . '"');
}
}
}
/**
* @param DispatcherInterface $dispatcher
* @param string $name
* @param \ArrayAccess $context
*
* @throws \RuntimeException
*/
public function dispatchEvent(DispatcherInterface $dispatcher, $name, \ArrayAccess $context = null)
{
if ($this->dispatcher) {
throw new \RuntimeException('Event dispatching is still running!');
} else {
if ($this->currentState->hasEvent($name)) {
$this->acquireLockOrThrowException();
$this->dispatcher = $dispatcher;
if ($context) {
$this->currentContext = $context;
} else {
$this->currentContext = new \ArrayIterator(array());
}
$this->currentEvent = $this->currentState->getEvent($name);
$dispatcher->dispatch($this->currentEvent, array($this->subject, $this->currentContext), new Callback(array($this, 'onDispatcherReady')));
} else {
throw new WrongEventForStateException($this->currentState->getName(), $name);
}
}
}
/**
* @param StateInterface $sourceState
*
* @throws \InvalidArgumentException
*/
protected function mergeState(StateInterface $sourceState)
{
$name = $sourceState->getName();
$targetState = $this->findOrCreateState($name);
$this->mergeMetadata($sourceState, $targetState);
/* @var $transition TransitionInterface */
foreach ($sourceState->getTransitions() as $sourceTransition) {
$targetTransition = $this->createTransition($sourceTransition);
$this->addTransition($targetState, $targetTransition);
}
foreach ($sourceState->getEventNames() as $eventName) {
$sourceEvent = $sourceState->getEvent($eventName);
$targetEvent = $targetState->getEvent($eventName);
$this->mergeMetadata($sourceEvent, $targetEvent);
foreach ($sourceEvent->getObservers() as $observer) {
$targetEvent->attach($observer);
}
}
}
/**
* @param StateInterface $state
*
* @return \Fhaculty\Graph\Vertex
*/
public function createStatusVertex(StateInterface $state)
{
$stateName = $state->getName();
$vertex = $this->graph->createVertex($stateName, true);
if ($state instanceof \ArrayAccess) {
$layout = $this->getLayoutOptions($state, $this->stateLayout);
if (method_exists($vertex, 'setLayout')) {
$vertex->setLayout($layout);
} else {
foreach ($layout as $name => $value) {
$vertex->setAttribute('graphviz.' . $name, $value);
}
}
}
return $vertex;
}
/**
* @param StateInterface $state
* @return \Fhaculty\Graph\Vertex
*/
public function createStatusVertex(StateInterface $state)
{
$stateName = $state->getName();
$vertex = $this->createVertex($stateName, true);
if ($state instanceof \ArrayAccess) {
$layout = $this->getLayoutOptions($state, $this->stateLayout);
$vertex->setLayout($layout);
}
return $vertex;
}
