org.glassfish.grizzly.http.server.Session Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.grizzly.http.server;
import java.util.concurrent.ConcurrentMap;
import org.glassfish.grizzly.utils.DataStructures;
/**
* Simple session object.
*
* @author Jeanfrancois Arcand
*/
public class Session {
/**
* Cache attribute (thread safe)
*/
private final ConcurrentMap attributes =
DataStructures.getConcurrentMap();
/**
* A session identifier
*/
private String id = null;
/**
* Is this Session valid.
*/
private boolean isValid = true;
/**
* Is this session new.
*/
private boolean isNew = true;
/**
* When this session was created.
*/
private final long creationTime;
/**
* Timeout
*/
private long sessionTimeout = -1;
/**
* Creation time stamp.
*/
private long timestamp = -1;
public Session() {
this(null);
}
/**
* Create a new session using a session identifier
* @param id session identifier
*/
public Session(String id) {
this.id = id;
creationTime = timestamp = System.currentTimeMillis();
}
/**
* Is the current Session valid?
* @return true if valid.
*/
public boolean isValid() {
return isValid;
}
/**
* Set this object as validated.
* @param isValid
*/
public void setValid(boolean isValid) {
this.isValid = isValid;
if (!isValid) {
timestamp = -1;
}
}
/**
* Returns true
if the client does not yet know about the
* session or if the client chooses not to join the session. For
* example, if the server used only cookie-based sessions, and
* the client had disabled the use of cookies, then a session would
* be new on each request.
*
* @return true
if the
* server has created a session,
* but the client has not yet joined
*/
public boolean isNew() {
return isNew;
}
/**
* @return the session identifier for this session.
*/
public String getIdInternal() {
return id;
}
/**
* Sets the session identifier for this session.
* @param id
*/
protected void setIdInternal(String id) {
this.id = id;
}
/**
* Add an attribute to this session.
* @param key
* @param value
*/
public void setAttribute(String key, Object value) {
attributes.put(key, value);
}
/**
* Return an attribute.
*
* @param key
* @return an attribute
*/
public Object getAttribute(String key) {
return attributes.get(key);
}
/**
* Remove an attribute.
* @param key
* @return true if successful.
*/
public Object removeAttribute(String key){
return attributes.remove(key);
}
/**
* Return a {@link ConcurrentMap} of attributes.
* @return the attributes associated with this session.
*/
public ConcurrentMap attributes() {
return attributes;
}
/**
*
* Returns the time when this session was created, measured
* in milliseconds since midnight January 1, 1970 GMT.
*
* @return a long
specifying
* when this session was created,
* expressed in
* milliseconds since 1/1/1970 GMT
*/
public long getCreationTime() {
return creationTime;
}
/**
* Return a long representing the maximum idle time (in milliseconds) a session can be.
* @return a long representing the maximum idle time (in milliseconds) a session can be.
*/
public long getSessionTimeout() {
return sessionTimeout;
}
/**
* Set a long representing the maximum idle time (in milliseconds) a session can be.
* @param sessionTimeout a long representing the maximum idle time (in milliseconds) a session can be.
*/
public void setSessionTimeout(long sessionTimeout) {
this.sessionTimeout = sessionTimeout;
}
/**
* @return the timestamp when this session was accessed the last time
*/
public long getTimestamp() {
return timestamp;
}
/**
* Set the timestamp when this session was accessed the last time.
* @param timestamp a long representing when the session was accessed the last time
*/
public void setTimestamp(long timestamp) {
this.timestamp = timestamp;
}
/**
* Updates the "last accessed" timestamp with the current time.
* @return the time stamp
*/
public long access() {
final long localTimeStamp = System.currentTimeMillis();
timestamp = localTimeStamp;
isNew = false;
return localTimeStamp;
}
}