Source Code Cross Referenced for UserSession.java in  » Net » Coadunation_1.0.1 » com » rift » coad » lib » security » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Coadunation_1.0.1 » com.rift.coad.lib.security 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * CoadunationLib: The coaduntion implementation library.
003:         * Copyright (C) 2006  Rift IT Contracting
004:         * 
005:         * This library is free software; you can redistribute it and/or
006:         * modify it under the terms of the GNU Lesser General Public
007:         * License as published by the Free Software Foundation; either
008:         * version 2.1 of the License, or (at your option) any later version.
009:         * 
010:         * This library is distributed in the hope that it will be useful,
011:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
012:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013:         * Lesser General Public License for more details.
014:         * 
015:         * You should have received a copy of the GNU Lesser General Public
016:         * License along with this library; if not, write to the Free Software
017:         * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
018:         *
019:         * UserSession.java
020:         *
021:         * The user object identifying a user to the security system.
022:         */
023:
024:        // the package
025:        package com.rift.coad.lib.security;
026:
027:        // java imports
028:        import java.util.Set;
029:        import java.util.Date;
030:        import java.util.HashSet;
031:
032:        // coadunation imports
033:        import com.rift.coad.lib.common.RandomGuid;
034:
035:        /**
036:         * The user object identifying a user to the security system.
037:         *
038:         * @author Brett Chaldecott
039:         */
040:        public class UserSession implements  PrincipalContainer, Cloneable {
041:
042:            // classes member variables
043:            private String name = null;
044:            private String sessionId = null;
045:            private Set principals = null;
046:            private Date touchTime = new Date();
047:            private long expiryTime = 0;
048:            private boolean valid = true;
049:
050:            /**
051:             * The default constructor responsible for creating the default nobody user.
052:             *
053:             * @exception SecurityException
054:             */
055:            public UserSession() throws SecurityException {
056:                try {
057:                    name = "nobody";
058:                    sessionId = RandomGuid.getInstance().getGuid();
059:                    this .principals = new HashSet();
060:                } catch (Exception ex) {
061:                    throw new SecurityException(
062:                            "Failed to initialize the users session : "
063:                                    + ex.getMessage(), ex);
064:                }
065:            }
066:
067:            /**
068:             * Creates a new instance of UserSession
069:             */
070:            public UserSession(String name, Set principals)
071:                    throws SecurityException {
072:                try {
073:                    this .name = name;
074:                    sessionId = RandomGuid.getInstance().getGuid();
075:                    this .principals = principals;
076:                } catch (Exception ex) {
077:                    throw new SecurityException(
078:                            "Failed to initialize the users session : "
079:                                    + ex.getMessage(), ex);
080:                }
081:            }
082:
083:            /**
084:             * Creates a new instance of UserSession
085:             *
086:             * @param name The name associated with the new user session.
087:             * @param sessionId The id of the session.
088:             * @param principals The principals of this user.
089:             */
090:            public UserSession(String name, String sessionId, Set principals) {
091:                this .name = name;
092:                this .sessionId = sessionId;
093:                this .principals = principals;
094:            }
095:
096:            /**
097:             * The getter method for the name of this role.
098:             *
099:             * @return The string containing the name of this role.
100:             */
101:            public String getName() {
102:                return name;
103:            }
104:
105:            /**
106:             * This method returns the id of the users session id.
107:             *
108:             * @return The id of the users session.
109:             */
110:            public String getSessionId() {
111:                return sessionId;
112:            }
113:
114:            /**
115:             * This method returns the id of the users session id.
116:             *
117:             * @return The id of the users session.
118:             */
119:            public void setSessionId(String sessionId) {
120:                this .sessionId = sessionId;
121:            }
122:
123:            /**
124:             * This method returns the list of principals.
125:             *
126:             * @return The list of principals.
127:             */
128:            public Set getPrincipals() {
129:                return principals;
130:            }
131:
132:            /**
133:             * This method set the list of principals.
134:             *
135:             * @param The list of principals.
136:             */
137:            public void setPrincipals(Set principals) {
138:                this .principals = principals;
139:            }
140:
141:            /**
142:             * This method returns the touch time of the user session.
143:             *
144:             * @return The last time this object was touched.
145:             */
146:            public synchronized Date getTouchTime() {
147:                return touchTime;
148:            }
149:
150:            /**
151:             * This method results in the users session being touched.
152:             *
153:             * @exception SecurityException
154:             */
155:            public synchronized void touch() throws SecurityException {
156:                if (isExpired() || valid == false) {
157:                    throw new SecurityException(
158:                            "The object has expired or been invalidated.");
159:                }
160:                touchTime = new Date();
161:            }
162:
163:            /**
164:             * The getter for the expiry time value.
165:             *
166:             * @return the expiry time of this object.
167:             */
168:            public synchronized long getExpiryTime() {
169:                return expiryTime;
170:            }
171:
172:            /**
173:             * The setter for the expiry time value.
174:             *
175:             * @param expiryTime The new expiry time.
176:             */
177:            public synchronized void setExpiryTime(long expiryTime) {
178:                this .expiryTime = expiryTime;
179:            }
180:
181:            /**
182:             * This method returns true if this object has expired in memory.
183:             *
184:             * @return TRUE if expired FALSE if not.
185:             */
186:            public synchronized boolean isExpired() {
187:                if (!valid) {
188:                    return true;
189:                } else if (expiryTime == 0) {
190:                    return false;
191:                } else if (new Date().getTime() > (touchTime.getTime() + expiryTime)) {
192:                    return true;
193:                }
194:                return false;
195:            }
196:
197:            /**
198:             * This method will mark this session as invalid.
199:             */
200:            public synchronized void invalidate() {
201:                valid = false;
202:            }
203:
204:            /**
205:             * This method returns a clone of the original user object.
206:             *
207:             * @return A clone of the orinal object.
208:             */
209:            public Object clone() throws CloneNotSupportedException {
210:                return super.clone();
211:            }
212:        }
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