001
014
015 package com.liferay.util;
016
017 import com.liferay.portal.kernel.util.GetterUtil;
018
019 import java.util.Collections;
020 import java.util.HashMap;
021 import java.util.Map;
022
023 import javax.servlet.http.Cookie;
024 import javax.servlet.http.HttpServletRequest;
025
026
030 public class CookieUtil {
031
032 public static String get(HttpServletRequest request, String name) {
033 Map<String, Cookie> cookieMap = _getCookieMap(request);
034
035 Cookie cookie = cookieMap.get(name.toUpperCase());
036
037 if (cookie == null) {
038 return null;
039 }
040 else {
041 return cookie.getValue();
042 }
043 }
044
045 private static Map<String, Cookie> _getCookieMap(
046 HttpServletRequest request) {
047
048 Map<String, Cookie> cookieMap =
049 (Map<String, Cookie>)request.getAttribute(
050 CookieUtil.class.getName());
051
052 if (cookieMap != null) {
053 return cookieMap;
054 }
055
056 Cookie[] cookies = request.getCookies();
057
058 if (cookies == null) {
059 cookieMap = Collections.emptyMap();
060 }
061 else {
062 cookieMap = new HashMap<String, Cookie>(cookies.length * 4 / 3);
063
064 for (Cookie cookie : cookies) {
065 String cookieName = GetterUtil.getString(
066 cookie.getName());
067
068 cookieName = cookieName.toUpperCase();
069
070 cookieMap.put(cookieName, cookie);
071 }
072 }
073
074 request.setAttribute(CookieUtil.class.getName(), cookieMap);
075
076 return cookieMap;
077 }
078
079 }