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
032 public class CookieUtil {
033
034 public static String get(HttpServletRequest request, String name) {
035 return get(request, name, true);
036 }
037
038 public static String get(
039 HttpServletRequest request, String name, boolean toUpperCase) {
040
041 Map<String, Cookie> cookieMap = _getCookieMap(request);
042
043 if (toUpperCase) {
044 name = name.toUpperCase();
045 }
046
047 Cookie cookie = cookieMap.get(name);
048
049 if (cookie == null) {
050 return null;
051 }
052 else {
053 return cookie.getValue();
054 }
055 }
056
057 private static Map<String, Cookie> _getCookieMap(
058 HttpServletRequest request) {
059
060 Map<String, Cookie> cookieMap =
061 (Map<String, Cookie>)request.getAttribute(
062 CookieUtil.class.getName());
063
064 if (cookieMap != null) {
065 return cookieMap;
066 }
067
068 Cookie[] cookies = request.getCookies();
069
070 if (cookies == null) {
071 cookieMap = Collections.emptyMap();
072 }
073 else {
074 cookieMap = new HashMap<String, Cookie>(cookies.length * 4 / 3);
075
076 for (Cookie cookie : cookies) {
077 String cookieName = GetterUtil.getString(cookie.getName());
078
079 cookieName = cookieName.toUpperCase();
080
081 cookieMap.put(cookieName, cookie);
082 }
083 }
084
085 request.setAttribute(CookieUtil.class.getName(), cookieMap);
086
087 return cookieMap;
088 }
089
090 }