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src/main/java/server/TimerManager.java

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+/*
+	This file is part of the OdinMS Maple Story Server
+    Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
+		       Matthias Butz <matze@odinms.de>
+		       Jan Christian Meyer <vimes@odinms.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    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 Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+package server;
+
+import java.lang.management.ManagementFactory;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import net.server.Server;
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+import tools.FilePrinter;
+
+public class TimerManager implements TimerManagerMBean {
+    private static TimerManager instance = new TimerManager();
+    
+    public static TimerManager getInstance() {
+        return instance;
+    }
+    
+    private ScheduledThreadPoolExecutor ses;
+
+    private TimerManager() {
+        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
+        try {
+            mBeanServer.registerMBean(this, new ObjectName("server:type=TimerManger"));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void start() {
+        if (ses != null && !ses.isShutdown() && !ses.isTerminated()) {
+            return;
+        }
+        ScheduledThreadPoolExecutor stpe = new ScheduledThreadPoolExecutor(4, new ThreadFactory() {
+            private final AtomicInteger threadNumber = new AtomicInteger(1);
+
+            @Override
+            public Thread newThread(Runnable r) {
+                Thread t = new Thread(r);
+                t.setName("TimerManager-Worker-" + threadNumber.getAndIncrement());
+                return t;
+            }
+        });
+        //this is a no-no, it actually does nothing..then why the fuck are you doing it?
+        stpe.setContinueExistingPeriodicTasksAfterShutdownPolicy(false);
+        stpe.setRemoveOnCancelPolicy(true);
+		
+        stpe.setKeepAliveTime(5, TimeUnit.MINUTES);
+        stpe.allowCoreThreadTimeOut(true);
+		
+        ses = stpe;
+    }
+
+    public void stop() {
+        ses.shutdownNow();
+    }
+	
+    public Runnable purge() {//Yay?
+        return new Runnable() {
+            @Override
+            public void run() {
+                Server.getInstance().forceUpdateCurrentTime();
+                ses.purge();
+            }
+        };
+    }
+    
+    public ScheduledFuture<?> register(Runnable r, long repeatTime, long delay) {
+        return ses.scheduleAtFixedRate(new LoggingSaveRunnable(r), delay, repeatTime, TimeUnit.MILLISECONDS);
+    }
+
+    public ScheduledFuture<?> register(Runnable r, long repeatTime) {
+        return ses.scheduleAtFixedRate(new LoggingSaveRunnable(r), 0, repeatTime, TimeUnit.MILLISECONDS);
+    }
+
+    public ScheduledFuture<?> schedule(Runnable r, long delay) {
+        return ses.schedule(new LoggingSaveRunnable(r), delay, TimeUnit.MILLISECONDS);
+    }
+        
+    public ScheduledFuture<?> scheduleAtTimestamp(Runnable r, long timestamp) {
+        return schedule(r, timestamp - System.currentTimeMillis());
+    }
+
+    @Override
+    public long getActiveCount() {
+        return ses.getActiveCount();
+    }
+
+    @Override
+    public long getCompletedTaskCount() {
+        return ses.getCompletedTaskCount();
+    }
+
+    @Override
+    public int getQueuedTasks() {
+        return ses.getQueue().toArray().length;
+    }
+
+    @Override
+    public long getTaskCount() {        
+        return ses.getTaskCount();
+    }
+
+    @Override
+    public boolean isShutdown() {
+        return ses.isShutdown();
+    }
+
+    @Override
+    public boolean isTerminated() {
+        return ses.isTerminated();
+    }
+
+    
+    private static class LoggingSaveRunnable implements Runnable {
+        Runnable r;
+
+        public LoggingSaveRunnable(Runnable r) {
+            this.r = r;
+        }
+
+        @Override
+        public void run() {
+            try {
+                r.run();
+            } catch (Throwable t) {
+                FilePrinter.printError(FilePrinter.EXCEPTION_CAUGHT, t);
+            }
+        }
+    }
+}