/**
* This function perfrom the following operations
* (1) If the cache contain an entry [key, value] for the resourceset then
* return the entry-value
* (2) If the cache not contain an entry for the resourceset then validate
* the resourceset
* (a) If valid add entry as [resouceset_name, resourceSetWrapper]
* (b) if not valid add entry as [resouceset_name, null]
* Note: validating a resourceset means checking the resourceset is visible
* or not using configuration
*
* @param ResourceSet $resourceSet The resourceset to validate and get the
* wrapper for
*
* @return ResourceSetWrapper/NULL Returns an instance if ResourceSetWrapper
* if resourceset is visible else NULL
*/
private function _validateResourceSetAndGetWrapper(ResourceSet $resourceSet)
{
$cacheKey = $resourceSet->getName();
if (array_key_exists($cacheKey, $this->_resourceSetWrapperCache)) {
return $this->_resourceSetWrapperCache[$cacheKey];
}
$this->_validateResourceType($resourceSet->getResourceType());
$resourceSetWrapper = new ResourceSetWrapper($resourceSet, $this->_configuration);
if ($resourceSetWrapper->isVisible()) {
$this->_resourceSetWrapperCache[$cacheKey] = $resourceSetWrapper;
} else {
$this->_resourceSetWrapperCache[$cacheKey] = null;
}
return $this->_resourceSetWrapperCache[$cacheKey];
}
