/**
* Perform the visit.
*
* @param ezcWorkflowVisitable $visitable
*/
protected function doVisit(ezcWorkflowVisitable $visitable)
{
if ($visitable instanceof ezcWorkflow) {
$visitable->startNode->setId(++$this->nextId);
$this->startNode = $visitable->startNode;
$visitable->endNode->setId(++$this->nextId);
$this->endNode = $visitable->endNode;
if (count($visitable->finallyNode->getOutNodes()) > 0) {
$this->finallyNode = $visitable->finallyNode;
$visitable->finallyNode->setId(++$this->nextId);
}
} else {
if ($visitable instanceof ezcWorkflowNode) {
if ($visitable !== $this->startNode && $visitable !== $this->endNode && $visitable !== $this->finallyNode) {
$id = ++$this->nextId;
$visitable->setId($id);
} else {
$id = $visitable->getId();
}
$this->nodes[$id] = $visitable;
}
}
}
/**
* Visits the node, adds it to the list of nodes.
*
* Returns true if the node was added. False if it was already in the list
* of nodes.
*
* @param ezcWorkflowVisitable $visitable
* @return boolean
*/
public function visit(ezcWorkflowVisitable $visitable)
{
if ($visitable instanceof ezcWorkflow) {
$visitor = new ezcWorkflowVisitorMaxNodeIdFinder($visitable);
$this->nextId = $visitor->getMaxNodeId() + 1;
unset($visitor);
if ($visitable->startNode->getId() === false) {
$visitable->startNode->setId($this->nextId++);
}
if ($visitable->endNode->getId() === false) {
$visitable->endNode->setId($this->nextId++);
}
if (count($visitable->finallyNode->getOutNodes()) > 0) {
$this->finallyNode = $visitable->finallyNode;
if ($visitable->finallyNode->getId() === false) {
$visitable->finallyNode->setId($this->nextId++);
}
}
} else {
if ($visitable instanceof ezcWorkflowNode) {
$id = $visitable->getId();
if ($id === false) {
$id = $this->nextId++;
$visitable->setId($id);
}
if (isset($this->nodes[$id])) {
return false;
}
$this->nodes[$id] = $visitable;
}
}
return true;
}
