l2j-server-game/L2_GameServer/java/com/l2jserver/util/lib/memcache.java

/*
 * 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 com.l2jserver.util.lib;

import java.util.HashMap;
import java.util.logging.Logger;

@Deprecated
public class memcache
{
	private static Logger _log = Logger.getLogger(memcache.class.getName());
	private HashMap<Integer, String> _hms;
	private HashMap<Integer, Integer> _hmi;
	private HashMap<Integer, Long> _lastAccess;
	
	public static memcache getInstance()
	{
		return SingletonHolder._instance;
	}
	
	private memcache()
	{
		_hms = new HashMap<Integer, String>();
		_hmi = new HashMap<Integer, Integer>();
		_lastAccess = new HashMap<Integer, Long>();
	}
	
	private void checkExpired()
	{
		for (Integer k : _hmi.keySet())
			if (_lastAccess.get(k) + 3600000 < System.currentTimeMillis())
			{
				//				_hmi.remove(k);
				//				_last_access.remove(k);
			}
		
		for (Integer k : _hms.keySet())
			if (_lastAccess.get(k) + 3600000 < System.currentTimeMillis())
			{
				//				_hms.remove(k);
				//				_last_access.remove(k);
			}
	}
	
	public void set(String type, String key, int value)
	{
		int hash = (type + "->" + key).hashCode();
		//_log.fine("Set memcache "+type+"("+key+")["+hash+"] to "+value);
		_hmi.put(hash, value);
		_lastAccess.put(hash, System.currentTimeMillis());
		checkExpired();
	}
	
	@Deprecated
	public boolean isSet(String type, String key)
	{
		int hash = (type + "->" + key).hashCode();
		boolean exists = _hmi.containsKey(hash) || _hms.containsKey(hash);
		if (exists)
			_lastAccess.put(hash, System.currentTimeMillis());
		
		checkExpired();
		_log.fine("Check exists memcache " + type + "(" + key + ")[" + hash + "] is " + exists);
		return exists;
	}
	
	@Deprecated
	public Integer getInt(String type, String key)
	{
		int hash = (type + "->" + key).hashCode();
		_lastAccess.put(hash, System.currentTimeMillis());
		checkExpired();
		_log.fine("Get memcache " + type + "(" + key + ")[" + hash + "] = " + _hmi.get(hash));
		return _hmi.get(hash);
	}
	
	@SuppressWarnings("synthetic-access")
	private static class SingletonHolder
	{
		protected static final memcache _instance = new memcache();
	}
}