How to retrieve the calling User in a custom function without passing it as a parameter ?

Question

Hello, 
 Could you please tell me how can i retrieve the caller of a custom function inside this function (in java) ? I would like to check at least if he has the sysadmin rights. 
 Thanks in advance 
 David

davidl0016 · Answer

	@Function
	public TypedValue sysInfo(ServiceContext
			  sc,UserProfileService ups_) throws AppianException {
		HashMap<TypedValue, TypedValue> ret = new HashMap<TypedValue, TypedValue>();
		try {
			
			UserProfile profile = ups_.getUser(sc.getName());
			if (!profile.getUserTypeId().equals(UserProfile.USER_TYPE_SYS_ADMIN)) {
				String errorText = "User " + profile.getUsername()
						+ " is not a System Administrator.  You must run sysInfo as an administrator.";
				LOG.error(errorText);
				throw new Exception(errorText);
			}
			
	.....