/**
* {@inheritdoc}
*/
public function enter(VirtualExecution $execution)
{
$engine = $execution->getEngine();
$name = $this->getStringValue($this->name, $execution->getExpressionContext());
$engine->debug('Evaluate <{language}> script task "{task}"', ['language' => $this->language, 'task' => $name]);
if ($this->scriptResource !== NULL) {
$process = $engine->getRepositoryService()->createProcessDefinitionQuery()->processDefinitionId($execution->getProcessModel()->getId())->findOne();
$deployment = $engine->getRepositoryService()->createDeploymentQuery()->deploymentId($process->getDeploymentId())->findOne();
$resource = $deployment->findResourceById($process->getResourceId());
$file = str_replace('./', '', dirname($resource->getName()) . '/' . $this->scriptResource);
$script = '?>' . $deployment->findResource($file)->getContents();
} else {
$script = $this->script;
}
// Isolate scope to prevent manipulation of local / instance variables:
$callback = function (DelegateExecution $execution, $script) {
return eval($script);
};
if (method_exists($callback, 'bindTo')) {
$callback = $callback->bindTo(NULL, NULL);
}
$result = $callback(new DelegateExecution($execution), $script);
if ($this->resultVariable !== NULL) {
$execution->setVariable($this->resultVariable, $result);
}
$engine->notify(new TaskExecutedEvent($name, new DelegateExecution($execution), $engine));
$this->leave($execution);
}
/**
* {@inheritdoc}
*/
public function enter(VirtualExecution $execution)
{
$engine = $execution->getEngine();
$name = $this->getStringValue($this->name, $execution->getExpressionContext());
$engine->debug('Execute expression in service task "{task}"', ['task' => $name]);
$result = $this->getValue($this->expression, $execution->getExpressionContext());
if ($this->resultVariable !== NULL) {
$execution->setVariable($this->resultVariable, $result);
}
$engine->notify(new TaskExecutedEvent($name, new DelegateExecution($execution), $engine));
$this->leave($execution);
}
/**
* {@inheritdoc}
*/
public function executeCommand(ProcessEngine $engine)
{
$def = $engine->getRepositoryService()->createProcessDefinitionQuery()->processDefinitionId($this->definitionId)->findOne();
$definition = $def->getModel();
$startNode = $definition->findNode($this->startNodeId);
$process = new VirtualExecution(UUID::createRandom(), $engine, $definition);
$process->setBusinessKey($this->businessKey);
$process->setNode($startNode);
foreach (unserialize($this->variables) as $k => $v) {
$process->setVariable($k, $v);
}
$engine->registerExecution($process);
$engine->info('Started {process} using process definition "{key}" ({id})', ['process' => (string) $process, 'key' => $def->getKey(), 'id' => (string) $def->getId()]);
$process->execute($startNode);
return $process->getId();
}
/**
* Pass all variables given to the execution setting them in the executions's scope.
*
* @param VirtualExecution $execution
* @param array $variables
*/
protected function passVariablesToExecution(VirtualExecution $execution, array $variables)
{
foreach ($variables as $k => $v) {
$execution->setVariable($k, $v);
}
}
