java - 数组的特定元素匹配多个条件并返回 boolean 值

Question

我想要最优化和最简单的方法来在 Java 8 中编写此代码:

(Authentication auth, HttpServletRequest request, ....)

...

Cookie cookies[] = request.getCookies();
if (cookies != null) {

    for (Cookie cookie : cookies) {
        if (cookie.getName().equals("_id")) {
            boolean bool_1 = isIdCookieValid(cookie, auth);
        }
        else if (cookie.getName().equals("XSRF-TOKEN")) {
            boolean bool_2 = isXSRFTokenValid(cookie, request);
        }
    }

    if (bool_1 && bool_2) {
        System.out.println("Ok");
    }
    // else if they are not both true do nothing
}

也许使用 Stream 类？

Answer 1

也许有更简单的方法:

• 只需更换您的

Cookie cookies[] = request.getCookies();
if (cookies != null) {

    for (Cookie cookie : cookies) {
        if (cookie.getName().equals("_id")) {
            boolean bool_1 = isIdCookieValid(cookie, auth);
        }
        else if (cookie.getName().equals("XSRF-TOKEN")) {
            boolean bool_2 = isXSRFTokenValid(cookie, request);
        }
    }

    if (bool_1 && bool_2) {
        System.out.println("Ok");
    }
    // else if they are not both true do nothing
}

• 与

Cookie[] cookies = request.getCookies();
if (cookies != null) {
    boolean bool = Arrays.stream(cookies)
                         .filter(cookie -> 
                            (cookie.getName().equals("_id") ? 
                              isIdCookieValid(cookie, auth) : 
                              cookie.getName().equals("XSRF-TOKEN") && 
                                isXSRFTokenValid(cookie, request)))
                         .count() == 2;

    System.out.println(bool ? "Ok" : "")
}