Source Code Cross Referenced for TurbineSession.java in  » Web-Framework » TURBINE » org » apache » turbine » services » session » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » TURBINE » org.apache.turbine.services.session 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.apache.turbine.services.session;
002:
003:        /*
004:         * Licensed to the Apache Software Foundation (ASF) under one
005:         * or more contributor license agreements.  See the NOTICE file
006:         * distributed with this work for additional information
007:         * regarding copyright ownership.  The ASF licenses this file
008:         * to you under the Apache License, Version 2.0 (the
009:         * "License"); you may not use this file except in compliance
010:         * with the License.  You may obtain a copy of the License at
011:         *
012:         *   http://www.apache.org/licenses/LICENSE-2.0
013:         *
014:         * Unless required by applicable law or agreed to in writing,
015:         * software distributed under the License is distributed on an
016:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017:         * KIND, either express or implied.  See the License for the
018:         * specific language governing permissions and limitations
019:         * under the License.
020:         */
021:
022:        import java.util.Collection;
023:        import javax.servlet.http.HttpSession;
024:
025:        import org.apache.turbine.om.security.User;
026:        import org.apache.turbine.services.TurbineServices;
027:
028:        /**
029:         * This is a conveience class provided to allow access to the SessionService
030:         * through static methods.  The SessionService should ALWAYS be accessed
031:         * through this class.
032:         *
033:         * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a>
034:         * @version $Id: TurbineSession.java 534527 2007-05-02 16:10:59Z tv $
035:         * @see org.apache.turbine.services.session.SessionService
036:         */
037:        public abstract class TurbineSession {
038:            /**
039:             * Gets a list of the active sessions
040:             *
041:             * @return List of HttpSession objects
042:             */
043:            public static Collection getActiveSessions() {
044:                return getService().getActiveSessions();
045:            }
046:
047:            /**
048:             * Adds a session to the current list.  This method should only be
049:             * called by the listener.
050:             *
051:             * @param session Session to add
052:             */
053:            public static void addSession(HttpSession session) {
054:                getService().addSession(session);
055:            }
056:
057:            /**
058:             * Removes a session from the current list.  This method should only be
059:             * called by the listener.
060:             *
061:             * @param session Session to remove
062:             */
063:            public static void removeSession(HttpSession session) {
064:                getService().removeSession(session);
065:            }
066:
067:            /**
068:             * Determines if a given user is currently logged in.  The actual
069:             * implementation of the User object must implement the equals()
070:             * method.  By default, Torque based objects (liek TurbineUser)
071:             * have an implementation of equals() that will compare the
072:             * result of getPrimaryKey().
073:             *
074:             * @param user User to check for
075:             * @return true if the user is logged in on one of the
076:             * active sessions.
077:             */
078:            public static boolean isUserLoggedIn(User user) {
079:                return getService().isUserLoggedIn(user);
080:            }
081:
082:            /**
083:             * Gets a collection of all user objects representing the users currently
084:             * logged in.  This will exclude any instances of anonymous user that
085:             * Turbine will use before the user actually logs on.
086:             *
087:             * @return collection of org.apache.turbine.om.security.User objects
088:             */
089:            public static Collection getActiveUsers() {
090:                return getService().getActiveUsers();
091:            }
092:
093:            /**
094:             * Utility method for accessing the service
095:             * implementation
096:             *
097:             * @return a IntakeService implementation instance
098:             */
099:            private static SessionService getService() {
100:                return (SessionService) TurbineServices.getInstance()
101:                        .getService(SessionService.SERVICE_NAME);
102:            }
103:
104:            /**
105:             * Gets the User object of the the specified HttpSession.
106:             *
107:             * @param session
108:             * @return
109:             */
110:            public static User getUserFromSession(HttpSession session) {
111:                return getService().getUserFromSession(session);
112:            }
113:
114:            /**
115:             * Gets the HttpSession by the session identifier
116:             *
117:             * @param sessionId
118:             * @return
119:             */
120:            public static HttpSession getSession(String sessionId) {
121:                return getService().getSession(sessionId);
122:            }
123:
124:            /**
125:             * Get a collection of all session on which the given user
126:             * is logged in.
127:             *
128:             * @param user the user
129:             * @return Collection of HtttSession objects
130:             */
131:            public static Collection getSessionsForUser(User user) {
132:                return getService().getSessionsForUser(user);
133:            }
134:        }
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