/**
* Short description of method createJoin
*
* @access public
* @author Joel Bout, <*****@*****.**>
* @param array sources
* @param Resource destination
* @return core_kernel_classes_Resource
*/
public function createJoin($sources, core_kernel_classes_Resource $destination)
{
$returnValue = null;
foreach ($sources as $step) {
$followings = $step->getPropertyValues(new core_kernel_classes_Property(PROPERTY_STEP_NEXT));
if (count($followings) > 0) {
foreach ($followings as $followingUri) {
$following = new core_kernel_classes_Resource($followingUri);
if ($this->isConnector($following)) {
$this->delete($following);
} else {
throw new common_Exception('Step ' . $step->getUri() . ' already has a non-connector attached');
}
}
}
}
$first = current($sources);
$returnValue = $this->createConnector($first, "c_" . $destination->getLabel());
common_Logger::d('spawned connector ' . $returnValue->getUri());
$this->setConnectorType($returnValue, new core_kernel_classes_Resource(INSTANCE_TYPEOFCONNECTORS_JOIN));
$first->removePropertyValues(new core_kernel_classes_Property(PROPERTY_STEP_NEXT));
$returnValue->setPropertyValue(new core_kernel_classes_Property(PROPERTY_STEP_NEXT), $destination);
common_Logger::d('removed previous connections, added next');
foreach ($sources as $activity) {
$flow = new wfEngine_models_classes_ProcessFlow();
$multiplicity = $flow->getCardinality($activity);
$cardinality = wfEngine_models_classes_ActivityCardinalityService::singleton()->createCardinality($returnValue, $multiplicity);
$activity->setPropertyValue(new core_kernel_classes_Property(PROPERTY_STEP_NEXT), $cardinality);
common_Logger::d('spawned cardinality ' . $cardinality->getUri() . ' with value ' . $multiplicity);
}
return $returnValue;
}
