protected OAuthToken getOAuthTokenFromRequest ( final HttpServletRequest request ) { val token = getOAuthConfigurationContext ( ) . getTicketRegistry ( ) . getTicket ( getOAuthParameter ( request ) , OAuthToken . class ) ; if ( token == null || token . isExpired ( ) ) { LOGGER . error ( "OAuth token indicated by parameter [{}] has expired or not found: [{}]" , getOAuthParameter ( request ) , token ) ; if ( token != null ) { getOAuthConfigurationContext ( ) . getTicketRegistry ( ) . deleteTicket ( token . getId ( ) ) ; } return null ; } return token ; }
Return the OAuth token .