java List

public static String getUsers<Lis<Id> authInfo){
	if(authInfo==null){
		return null;
	}
	String formatted = authInfo.stream() //转化为流的形式
		.map(AuthUtil::getUser)
		.filter(name->name!=null &&!name.trim().isEmpty())
		.collect(Collectors.joining(","));

	return formatted.isEmpty()?null:formatted;
}

public static List<ClientInfo> getClientInfos(List<Id> authInfo){
	List<ClientInfo> clientAuthInfo = new ArrayList<>(authInfo.size());
	authInfo.forEach(
		id->{
			String user = getUser(id);
			clientAuthInfo.add(new ClientInfo(id.getScheme(),user==null?"":user);
		});
}
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