Metabor\Statemachine\Factory\TransitionSelector\OneOrNoneActiveTransition

Complexity

Total Complexity

3

Size/Duplication

Total Lines	19
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	1	Features	1

1 Method

Rating	Name	Duplication	Size	Complexity
A	selectTransition()	0	13	3

<?php

namespace Metabor\Statemachine\Factory\TransitionSelector;

use MetaborStd\Statemachine\Factory\TransitionSelectorInterface;

/**
 * @author otischlinger
 */
class OneOrNoneActiveTransition implements TransitionSelectorInterface
{
    /**
     * @see \MetaborStd\Statemachine\Factory\TransitionSelectorInterface::selectTransition()
     */
    public function selectTransition(\Traversable $transitions)
    {
        $transitions = iterator_to_array($transitions);

        switch (count($transitions)) {
            case 0:
                return;
            case 1:
                return reset($transitions);
            default:
                throw new \RuntimeException('More than one transition is active!');
        }
    }
}