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 * 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
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 * or packager/legal/LICENSE.txt.  See the License for the specific
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package com.sun.grizzly.tcp.http11;

import java.util.concurrent.ConcurrentHashMap;

/**
 * Simple session object used.
 * 
 * @author Jeanfrancois Arcand
 */
public class GrizzlySession {

    /**
     * Cache attribute (thread safe)
     */
    private ConcurrentHashMap attributes = new
            ConcurrentHashMap();
    
    /**
     * A session identifier 
     */
    private String requestedSessionId = null;
    
    
    /**
     * Is this Session valid.
     */
    private boolean isValid = true;
    
    
    /**
     * Timeout
     */
    private long sessionTimeout = -1;
    
    
     /**
     * Creation time stamp.
     */
    private long timestamp = -1;
    
    
    
    public GrizzlySession() {
        this(null);
    }

    
    /**
     * Create a new session using a session identifier 
     * @param requestedSessionId session identifier 
     */
    public GrizzlySession(String requestedSessionId) {
        this.requestedSessionId = requestedSessionId;
    }


    /**
     * Is the current Session valid?
     * @return true if valid.
     */
    public boolean isValid() {
        return isValid;
    }
    
    
    /**
     * Set this object valifity. 
     * @param isValid
     */
    public void setIsValid(boolean isValid){
        this.isValid = isValid;
        if (!isValid){
            timestamp = -1;
        }
    }
    
    
    /**
     * Return the session identifier for this session.
     */
    public String getIdInternal(){
         return requestedSessionId;
    }
    
    
    /**
     * Return the session identifier for this session.
     */
    public void setIdInternal(String requestedSessionId){
         this.requestedSessionId = requestedSessionId;
    }
    
    
    /**
     * 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 ConcurrentHashMap} of attibutes.
     * @return
     */
    public ConcurrentHashMap attributes(){
        return attributes;
    }

    
    /**
     * Return a long representing the maximum idle time a session can be.
     * @return a long representing the maximum idle time a session can be.
     */
    public long getSessionTimeout() {
        return sessionTimeout;
    }

    
    /**
     * Set a long representing the maximum idle time a session can be.
     * @param sessionTimeout a long representing the maximum idle time a session can be.
     */   
    public void setSessionTimeout(long sessionTimeout) {
        this.sessionTimeout = sessionTimeout;
    }

    
    /**
     * Return the timespam when this session has been created.
     * @return
     */
    public long getTimestamp() {
        return timestamp;
    }

    
    /**
     * Set the timespam when this session has been created.
     * @param timestamp a long representin when the session has been created.
     */   
    public void setTimestamp(long timestamp) {
        this.timestamp = timestamp;
    }
    
}