/**
* This function retrieves the current instance of the metadata handler.
* The metadata handler will be instantiated if this is the first call
* to this function.
*
* @return SimpleSAML_Metadata_MetaDataStorageHandler The current metadata handler instance.
*/
public static function getMetadataHandler()
{
if (self::$metadataHandler === null) {
self::$metadataHandler = new SimpleSAML_Metadata_MetaDataStorageHandler();
}
return self::$metadataHandler;
}