001/*
002 * (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Jean-Marc Orliaguet, Chalmers
018 *
019 * $Id$
020 */
021
022package org.nuxeo.theme.jsf.negotiation;
023
024import java.util.Map;
025
026import javax.faces.context.ExternalContext;
027import javax.servlet.http.Cookie;
028import javax.servlet.http.HttpServletResponse;
029
030public final class CookieManager {
031
032    public static String getCookie(final String name, final ExternalContext context) {
033        if (context == null) {
034            return null;
035        }
036        final Map<String, Object> cookies = context.getRequestCookieMap();
037        final Cookie cookie = (Cookie) cookies.get(name);
038        if (cookie == null) {
039            return null;
040        }
041        return cookie.getValue();
042    }
043
044    public static void setCookie(String name, String value, final ExternalContext context) {
045        if (context == null) {
046            return;
047        }
048        HttpServletResponse response = (HttpServletResponse) context.getResponse();
049        final Cookie cookie = new Cookie(name, value);
050        response.addCookie(cookie);
051    }
052
053    public static void expireCookie(String name, final ExternalContext context) {
054        if (context == null) {
055            return;
056        }
057        HttpServletResponse response = (HttpServletResponse) context.getResponse();
058        final Cookie cookie = new Cookie(name, "");
059        cookie.setMaxAge(0);
060        response.addCookie(cookie);
061    }
062
063}