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//
//  ========================================================================
//  Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//


package org.eclipse.jetty.server.session;

import java.util.Set;

import org.eclipse.jetty.util.annotation.ManagedAttribute;
import org.eclipse.jetty.util.annotation.ManagedObject;

/**
 * NullSessionDataStore
 *
 * Does not actually store anything, useful for testing.
 */
@ManagedObject
public class NullSessionDataStore extends AbstractSessionDataStore
{
    
    @Override
    public SessionData doLoad(String id) throws Exception
    {
        return null;
    }


    @Override
    public SessionData newSessionData(String id, long created, long accessed, long lastAccessed, long maxInactiveMs)
    {
        return new SessionData(id, _context.getCanonicalContextPath(), _context.getVhost(), created, accessed, lastAccessed, maxInactiveMs);
    }


    @Override
    public boolean delete(String id) throws Exception
    {
       return true;
    }



    @Override
    public void doStore(String id, SessionData data, long lastSaveTime) throws Exception
    {
        //noop
    }

 

    @Override
    public Set doGetExpired(Set candidates)
    {
       return candidates; //whatever is suggested we accept
    }



    @ManagedAttribute(value="does this store serialize sessions", readonly=true)
    @Override
    public boolean isPassivating()
    {
        return false;
    }



    @Override
    public boolean exists(String id)
    {
        return false;
    }

}