/*
* $Id: BanGuard.java,v 1.5 2004/09/01 11:21:49 bel70 Exp $
*
* ***** BEGIN LICENSE BLOCK *****
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is JGossip forum code.
*
* The Initial Developer of the Original Code is the JResearch, Org.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dmitriy Belov <bel@jresearch.org>
* .
* * ***** END LICENSE BLOCK ***** */
/*
* Created on 29.08.2004
*
*/
package org.jresearch.gossip.am.ban;
import java.sql.SQLException;
import java.util.HashSet;
import org.jresearch.gossip.dao.UserDAO;
import org.jresearch.gossip.exception.SystemException;
/**
* @author Dmitry Belov
*
*/
public class BanGuard {
private BanMap banMap = new BanMap();
private static BanGuard instance;
private static Object lock = new Object();
private BanGuard() throws SystemException {
load();
}
/**
* @throws SystemException
*/
public void load() throws SystemException {
UserDAO dao = UserDAO.getInstance();
try {
banMap = new BanMap();
dao.fillBanMap(banMap);
} catch (SQLException e) {
throw new SystemException(e);
}
}
/**
* @return @throws
* SystemException
*/
public static BanGuard getInstance() throws SystemException {
if (instance == null) {
synchronized (lock) {
if (instance == null) {
instance = new BanGuard();
}
}
}
return instance;
}
public BanMap getBanMap() throws SystemException {
try {
return (BanMap) this.banMap.clone();
} catch (CloneNotSupportedException e) {
throw new SystemException(e);
}
}
/**
* @param name
* @param login
* @throws SystemException
*/
public boolean checkBan(String name, int type) throws SystemException {
HashSet set = banMap.get(type);
if (set == null) { return false; }
return set.contains(name);
}
}