private function findFileByCallingMethod($calls)
{
$functionNames = array('debug', 'info', 'warning', 'error', 'critical', 'log');
$foundObject = null;
foreach ($functionNames as $name) {
$foundObject = $this->findCallingFile($calls, $name);
if ($foundObject != null) {
return $foundObject;
}
}
return null;
}