Java tutorial
/* * Copyright (C) 2009 Nicolas Dutertry * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package org.glimpse.server; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import org.glimpse.client.UserAttributes; public class GlimpseUtils { public static final String COOKIE_CONNECTION = "org.glimpse.connectionId"; public static final String REQUEST_ATTRIBUTE_USER_ID = "org.glimpse.userId"; public static final String REQUEST_ATTRIBUTE_USER_ATTRIBUTES = "org.glimpse.userAttributes"; public static String getConnectionId(HttpServletRequest request) { Cookie[] cookies = request.getCookies(); if (cookies == null) { return null; } for (Cookie cookie : cookies) { if (cookie.getName().equals(COOKIE_CONNECTION)) { return cookie.getValue(); } } return null; } public static void setConnectionId(HttpServletRequest request, HttpServletResponse response, String connectionId, boolean persistent) { Cookie cookie = new Cookie(COOKIE_CONNECTION, connectionId); cookie.setPath(request.getContextPath() + "/"); if (!persistent) { cookie.setMaxAge(-1); } else { cookie.setMaxAge(365 * 24 * 60 * 60); } response.addCookie(cookie); } public static String getUserId(HttpServletRequest request) { return (String) request.getAttribute(REQUEST_ATTRIBUTE_USER_ID); } public static UserAttributes getUserAttributes(HttpServletRequest request) { return (UserAttributes) request.getAttribute(REQUEST_ATTRIBUTE_USER_ATTRIBUTES); } public static boolean isConnected(HttpServletRequest request) { return StringUtils.isNotEmpty(getUserId(request)); } }