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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Workflow\Dumper;
use Symfony\Component\Workflow\Definition;
use Symfony\Component\Workflow\Marking;
class StateMachineGraphvizDumper extends GraphvizDumper
{
/**
* {@inheritdoc}
*
* Dumps the workflow as a graphviz graph.
*
* Available options:
*
* * graph: The default options for the whole graph
* * node: The default options for nodes (places)
* * edge: The default options for edges
*/
public function dump(Definition $definition, Marking $marking = null, array $options = [])
{
$places = $this->findPlaces($definition, $marking);
$edges = $this->findEdges($definition);
$options = array_replace_recursive(self::$defaultOptions, $options);
return $this->startDot($options)
.$this->addPlaces($places)
.$this->addEdges($edges)
.$this->endDot()
;
}
/**
* @internal
*/
protected function findEdges(Definition $definition)
{
$edges = [];
foreach ($definition->getTransitions() as $transition) {
foreach ($transition->getFroms() as $from) {
foreach ($transition->getTos() as $to) {
$edges[$from][] = [
'name' => $transition->getName(),
'to' => $to,
];
}
}
}
return $edges;
}
/**
* @internal
*/
protected function addEdges(array $edges)
{
$code = '';
foreach ($edges as $id => $edges) {
foreach ($edges as $edge) {
$code .= sprintf(" place_%s -> place_%s [label=\"%s\" style=\"%s\"];\n", $this->dotize($id), $this->dotize($edge['to']), $edge['name'], 'solid');
}
}
return $code;
}
}