Server scheduled restart.

Contributed by gigilo1968.

trunk/java/com/l2jmobius/gameserver/instancemanager/ServerRestartManager.java

@@ -0,0 +1,107 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * 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.l2jmobius.gameserver.instancemanager;
+
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.logging.Logger;
+
+import com.l2jmobius.Config;
+import com.l2jmobius.gameserver.Shutdown;
+import com.l2jmobius.gameserver.ThreadPoolManager;
+
+/**
+ * @author Gigi
+ */
+public class ServerRestartManager
+{
+	static final Logger _log = Logger.getLogger(ServerRestartManager.class.getName());
+	
+	private String nextRestartString = "unknown";
+	
+	protected ServerRestartManager()
+	{
+		try
+		{
+			final Calendar currentTime = Calendar.getInstance();
+			final Calendar restartTime = currentTime;
+			Calendar lastRestart = currentTime;
+			restartTime.setLenient(true);
+			long delay = 0;
+			long lastDelay = 0;
+			int count = 0;
+			
+			for (String timeOfDay : Config.SERVER_RESTART_SCHEDULE_HOURS)
+			{
+				final String[] splitTimeOfDay = timeOfDay.split(":");
+				restartTime.set(Calendar.HOUR_OF_DAY, Integer.parseInt(splitTimeOfDay[0]));
+				restartTime.set(Calendar.MINUTE, Integer.parseInt(splitTimeOfDay[1]));
+				restartTime.set(Calendar.SECOND, 00);
+				
+				if (restartTime.getTimeInMillis() < currentTime.getTimeInMillis())
+				{
+					restartTime.add(Calendar.DAY_OF_MONTH, 1);
+				}
+				
+				delay = restartTime.getTimeInMillis() - currentTime.getTimeInMillis();
+				if (count == 0)
+				{
+					lastDelay = delay;
+					lastRestart = restartTime;
+				}
+				if (delay < lastDelay)
+				{
+					lastDelay = delay;
+					lastRestart = restartTime;
+				}
+				count++;
+			}
+			
+			nextRestartString = new SimpleDateFormat("HH:mm").format(lastRestart.getTime());
+			ThreadPoolManager.getInstance().scheduleGeneral(new ServerRestartTask(), lastDelay);
+			_log.info("Scheduled server restart at " + lastRestart.getTime().toString() + ".");
+		}
+		catch (Exception e)
+		{
+			_log.info("The scheduled server restart config is not set properly, please correct it!");
+		}
+	}
+	
+	public String getNextRestartTime()
+	{
+		return nextRestartString;
+	}
+	
+	class ServerRestartTask implements Runnable
+	{
+		@Override
+		public void run()
+		{
+			Shutdown.getInstance().startShutdown(null, Config.SERVER_RESTART_SCHEDULE_COUNTDOWN, true);
+		}
+	}
+	
+	public static ServerRestartManager getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final ServerRestartManager _instance = new ServerRestartManager();
+	}
+}