CookieUtil.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.util;

import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringUtil;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

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

/**
 * @author     Brian Wing Shun Chan
 * @author     Shuyang Zhou
 * @deprecated As of 6.2.0, replaced by {@link
 *             com.liferay.portal.kernel.util.CookieKeys}
 */
@Deprecated
public class CookieUtil {

	public static String get(HttpServletRequest request, String name) {
		return get(request, name, true);
	}

	public static String get(
		HttpServletRequest request, String name, boolean toUpperCase) {

		Map<String, Cookie> cookieMap = _getCookieMap(request);

		if (toUpperCase) {
			name = StringUtil.toUpperCase(name);
		}

		Cookie cookie = cookieMap.get(name);

		if (cookie == null) {
			return null;
		}
		else {
			return cookie.getValue();
		}
	}

	private static Map<String, Cookie> _getCookieMap(
		HttpServletRequest request) {

		Map<String, Cookie> cookieMap =
			(Map<String, Cookie>)request.getAttribute(
				CookieUtil.class.getName());

		if (cookieMap != null) {
			return cookieMap;
		}

		Cookie[] cookies = request.getCookies();

		if (cookies == null) {
			cookieMap = Collections.emptyMap();
		}
		else {
			cookieMap = new HashMap<>(cookies.length * 4 / 3);

			for (Cookie cookie : cookies) {
				String cookieName = GetterUtil.getString(cookie.getName());

				cookieName = StringUtil.toUpperCase(cookieName);

				cookieMap.put(cookieName, cookie);
			}
		}

		request.setAttribute(CookieUtil.class.getName(), cookieMap);

		return cookieMap;
	}

}