JeaseSessionListener.java

/*
    Copyright (C) 2016 maik.jablonski@jease.org

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package jease.cms.web.servlet;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import javax.servlet.annotation.WebListener;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;

@WebListener
public class JeaseSessionListener implements HttpSessionListener {

	private static Set<HttpSession> sessions = Collections
			.synchronizedSet(new HashSet<HttpSession>());

	public void sessionCreated(HttpSessionEvent se) {
		sessions.add(se.getSession());
	}

	public void sessionDestroyed(HttpSessionEvent se) {
		sessions.remove(se.getSession());
	}

	public static Set<HttpSession> getSessions() {
		return new HashSet<HttpSession>(sessions);
	}

}