throws AuthenticationCredentialsNotFoundException {
// need to check to see if the current user has a SwitchUserGrantedAuthority
Authentication current = SecurityContextHolder.getContext().getAuthentication();
if (null == current) {
throw new AuthenticationCredentialsNotFoundException(messages.getMessage(
"SwitchUserFilter.noCurrentUser", "No current user associated with this request"));
}
// check to see if the current user did actual switch to another user
// if so, get the original source user so we can switch back
Authentication original = getSourceAuthentication(current);
if (original == null) {
logger.debug("Could not find original user Authentication object!");
throw new AuthenticationCredentialsNotFoundException(messages.getMessage(
"SwitchUserFilter.noOriginalAuthentication",
"Could not find original Authentication object"));
}
// get the source user details