com.kdubb.social.user.UserCookieGenerator.java Source code

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Here is the source code for com.kdubb.social.user.UserCookieGenerator.java

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/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.kdubb.social.user;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.util.CookieGenerator;

/**
 * Utility class for managing the quick_start user cookie that remembers the signed-in user.
 * @author Keith Donald
 */
final class UserCookieGenerator {
    private final CookieGenerator userCookieGenerator = new CookieGenerator();

    public UserCookieGenerator() {
        userCookieGenerator.setCookieName("quickstart_user");
    }

    public void addCookie(String userId, HttpServletResponse response) {
        userCookieGenerator.addCookie(response, userId);
    }

    public void removeCookie(HttpServletResponse response) {
        userCookieGenerator.addCookie(response, "");
    }

    public String readCookieValue(HttpServletRequest request) {
        Cookie[] cookies = request.getCookies();

        if (cookies == null)
            return null;

        for (Cookie cookie : cookies)
            if (cookie.getName().equals(userCookieGenerator.getCookieName()))
                return cookie.getValue();

        return null;
    }
}