/**
* {@inheritdoc}
*/
public function fire(TransitionInterface $transition, MarkingInterface $marking)
{
if (!$this->isEnabled($transition, $marking)) {
throw new TransitionNotEnabledException('Cannot fire a disabled transition.');
}
$inputArcs = $transition->getInputArcs();
$outputArcs = $transition->getOutputArcs();
// Remove tokens from the input places
foreach ($inputArcs as $arc) {
$arcWeight = $arc->getWeight();
$place = $arc->getPlace();
$placeMarking = $marking->getPlaceMarking($place);
$tokens = $placeMarking->getTokens();
for ($i = 0; $i < $arcWeight; $i++) {
$placeMarking->removeToken($tokens[$i]);
}
}
// Add tokens to the output places
foreach ($outputArcs as $arc) {
$arcWeight = $arc->getWeight();
$place = $arc->getPlace();
$placeMarking = $marking->getPlaceMarking($place);
if (null === $placeMarking) {
$placeMarking = $this->factory->createPlaceMarking();
$placeMarking->setPlace($place);
$marking->addPlaceMarking($placeMarking);
}
// Create the tokens
$tokens = array();
for ($i = 0; $i < $arcWeight; $i++) {
$tokens[] = $this->factory->createToken();
}
$placeMarking->setTokens($tokens);
}
}
/**
* Marks the place with the specified tokens.
*
* @param PlaceInterface $place
* @param \Petrinet\Model\TokenInterface|array|integer $tokens
*
* @return MarkingBuilder
*
* @throws \InvalidArgumentException
*/
public function mark(PlaceInterface $place, $tokens)
{
if (is_int($tokens)) {
$tokensCount = $tokens;
$tokens = array();
for ($i = 0; $i < $tokensCount; $i++) {
$tokens[] = $this->factory->createToken();
}
} elseif ($tokens instanceof TokenInterface) {
$tokens = array($tokens);
} elseif (!is_array($tokens)) {
throw new \InvalidArgumentException('The $tokens argument must be an array, integer or a Petrinet\\Model\\TokenInterface instance.');
}
$placeMarking = $this->factory->createPlaceMarking();
$placeMarking->setPlace($place);
$placeMarking->setTokens($tokens);
$this->placeMarkings[] = $placeMarking;
return $this;
}
function it_builds_a_marking_with_three_place_markings(FactoryInterface $factory, MarkingInterface $marking, PlaceMarkingInterface $placeMarkingOne, PlaceMarkingInterface $placeMarkingTwo, PlaceMarkingInterface $placeMarkingThree, PlaceInterface $placeOne, PlaceInterface $placeTwo, PlaceInterface $placeThree, TokenInterface $token)
{
$factory->createMarking()->willReturn($marking);
$factory->createPlaceMarking()->willReturn($placeMarkingOne, $placeMarkingTwo, $placeMarkingThree);
$factory->createToken()->willReturn($token)->shouldBeCalledTimes(3);
$marking->setPlaceMarkings(array($placeMarkingOne, $placeMarkingTwo, $placeMarkingThree))->shouldBeCalled();
$placeMarkingOne->setPlace($placeOne)->shouldBeCalled();
$placeMarkingOne->setTokens(array($token))->shouldBeCalled();
$placeMarkingTwo->setPlace($placeTwo)->shouldBeCalled();
$placeMarkingTwo->setTokens(array($token, $token))->shouldBeCalled();
$placeMarkingThree->setPlace($placeThree)->shouldBeCalled();
$placeMarkingThree->setTokens(array($token, $token, $token))->shouldBeCalled();
$this->beConstructedWith($factory);
$this->mark($placeOne, $token);
$this->mark($placeTwo, array($token, $token));
$this->mark($placeThree, 3);
$this->getMarking()->shouldReturn($marking);
}
function it_creates_the_output_places_marking_if_not_existing_when_firing_a_transition(FactoryInterface $factory, PlaceMarkingInterface $placeOneMarking, PlaceMarkingInterface $placeTwoMarking, MarkingInterface $marking, PlaceInterface $placeOne, PlaceInterface $placeTwo, TransitionInterface $transition, InputArcInterface $arcOne, OutputArcInterface $arcTwo, TokenInterface $token)
{
$placeOne->getOutputArcs()->willReturn(array($arcOne));
$arcOne->getPlace()->willReturn($placeOne);
$arcOne->getTransition()->willReturn($transition);
$arcOne->getWeight()->willReturn(1);
$transition->getInputArcs()->willReturn(array($arcOne));
$transition->getOutputArcs()->willReturn(array($arcTwo));
$arcTwo->getTransition()->willReturn($transition);
$arcTwo->getPlace()->willReturn($placeTwo);
$arcTwo->getWeight()->willReturn(1);
$factory->createToken()->willReturn($token)->shouldBeCalled();
$factory->createPlaceMarking()->willReturn($placeTwoMarking)->shouldBeCalled();
$placeOneMarking->getTokens()->willReturn(array($token));
$marking->getPlaceMarking($placeOne->getWrappedObject())->willReturn($placeOneMarking);
$marking->getPlaceMarking($placeTwo->getWrappedObject())->willReturn(null);
$placeOneMarking->removeToken($token)->shouldBeCalled();
$placeTwoMarking->setPlace($placeTwo)->shouldBeCalled();
$placeTwoMarking->setTokens(array($token))->shouldBeCalled();
$marking->addPlaceMarking($placeTwoMarking)->shouldBeCalled();
$this->beConstructedWith($factory);
$this->fire($transition, $marking);
}
