/**
* @param $featureName
* @return null|\SplitIO\Grammar\Split
*/
private function getCachedFeature($featureName)
{
$ikey = $this->getSmKey($featureName);
$value = null;
try {
$value = SharedMemory::read($ikey, $this->smMode, $this->smSize);
if (!$value instanceof Split) {
return null;
}
} catch (SupportSharedMemoryException $se) {
SplitApp::logger()->warning($se->getMessage());
} catch (OpenSharedMemoryException $oe) {
SplitApp::logger()->warning($oe->getMessage());
} catch (ReadSharedMemoryException $re) {
SplitApp::logger()->error($re->getMessage());
} catch (\Exception $e) {
SplitApp::logger()->error($e->getMessage());
}
return $value;
}
/**
* @param $segmentName
* @param $key
* @return bool|null
*/
private function isInCachedSegment($segmentName, $key)
{
$ikey = $this->getSmKey($segmentName, $key);
$value = null;
try {
$value = SharedMemory::read($ikey, $this->smMode, $this->smSize);
if (!is_bool($value)) {
return null;
}
} catch (SupportSharedMemoryException $se) {
SplitApp::logger()->warning($se->getMessage());
} catch (OpenSharedMemoryException $oe) {
SplitApp::logger()->warning($oe->getMessage());
} catch (ReadSharedMemoryException $re) {
SplitApp::logger()->error($re->getMessage());
} catch (\Exception $e) {
SplitApp::logger()->error($e->getMessage());
}
return $value;
}