config support and logging (aa1d74a3) · Commits · Gigadoc 2 / spigot-idle-shutdown

src/main/java/jetzt/nicht/minecraft/idleShutdown/IdleShutdown.java

+57 −32

Original line number	Diff line number	Diff line
		package jetzt.nicht.minecraft.idleShutdown;

		import java.util.logging.Logger;
		import java.util.Timer;
		import java.util.TimerTask;
		import org.bukkit.event.HandlerList;
		@@ -10,19 +11,38 @@ import jetzt.nicht.minecraft.idleShutdown.PlayerQuitListener;
		import jetzt.nicht.minecraft.idleShutdown.PlayerJoinListener;

		public class IdleShutdown extends JavaPlugin {
		PlayerQuitListener playerQuitListener;
		PlayerJoinListener playerJoinListener;
		Timer idleTimer;
		private Logger log;
		private Integer idleWaitTime;
		private PlayerQuitListener playerQuitListener;
		private PlayerJoinListener playerJoinListener;
		private Timer idleTimer;

		@Override
		public void onEnable() {
		// First of all, get the logger
		this.log = getLogger();

		// Write the default config, if it does not exist.
		saveDefaultConfig();
		// Get the current config, default or otherwise.
		this.idleWaitTime = getConfig().getInt("idle_wait_time");
		// Negative times are not supported (duh).
		if (this.idleWaitTime < 0) {
		log.warning("You cannot use a negative idle_wait_time! Time set to 0 seconds.");
		this.idleWaitTime = 0;
		}
		// Let the admin know the configured idle time.
		log.info(String.format(("This server is running IdleShutdown: " +
		"It will stop after %d seconds with no player online."),
		this.idleWaitTime));

		// Create our listeners once, assign them later.
		// We pass in a reference to ourselves so the listener can call back.
		this.playerQuitListener = new PlayerQuitListener(this);
		this.playerJoinListener = new PlayerJoinListener(this);

		// Register our listener that listens for players quitting.
		System.out.println("Registering PlayerQuitListener...");
		log.finer("Registering PlayerQuitListener...");
		getServer().getPluginManager()
		.registerEvents(this.playerQuitListener, this);

		@@ -30,7 +50,7 @@ public class IdleShutdown extends JavaPlugin {
		// runtime, or the server was started automatically without anyone
		// actually joining. TODO: Make this configurable.
		if (noPlayerOnline()) {
		System.out.println("There are no players online!");
		log.fine("There are no players online!");
		startIdleTimer();
		}
		}
		@@ -39,55 +59,46 @@ public class IdleShutdown extends JavaPlugin {
		public void onDisable() {
		// Cancel the timer and unregister all Listeners
		if (this.idleTimer != null) {
		log.finer("Cancelling timer...");
		this.idleTimer.cancel();
		}
		HandlerList.unregisterAll(this);
		}

		public void onTimerExpired() {
		System.out.println("Timer expired!");
		log.fine("Timer expired!");

		if(noPlayerOnline()) {
		System.out.println("No players online, shutting down");
		log.info("No players online, shutting down");

		// Unregister all our Listeners, just to be on the safe side.
		HandlerList.unregisterAll(this);

		getServer().shutdown();
		} else {
		System.out.println("WARNING: A player has come online and we have "
		log.warning("A player has come online and we have "
		+ "not been notified! Something is very wrong here!");
		}
		}

		void onPlayerQuit() {
		System.out.println("A player has quit!");
		log.fine("A player has quit!");

		if (lastPlayerOnline()) {
		System.out.println("The last player is leaving!");

		// We now register PlayerJoinListener, so we can abort the timer
		// if a player joins in the meantime
		// XXX: This might be racy: if the Listener is activated before we
		// set the timer, we might crash when trying to abort the timer not
		// yet running!
		System.out.println("Registering PlayerJoinListener...");
		getServer().getPluginManager()
		.registerEvents(this.playerJoinListener, this);

		log.info("The last player is leaving!");
		startIdleTimer();
		}
		}

		void onPlayerJoin() {
		System.out.println("A player has joined!");
		log.fine("A player has joined!");

		// XXX: This might also be racy, if a player quits and joins after we
		// unregister the Listener but before we abort the timer.
		System.out.println("Unregistering PlayerJoinListener...");
		log.finer("Unregistering PlayerJoinListener...");
		HandlerList.unregisterAll(this.playerJoinListener);

		System.out.println("Aborting timer...");
		log.finer("Aborting timer...");
		this.idleTimer.cancel();
		}

		@@ -110,7 +121,20 @@ public class IdleShutdown extends JavaPlugin {
		}

		private void startIdleTimer() {
		System.out.println("Creating and scheduling timer...");
		if (this.idleWaitTime == 0) {
		log.fine("idle_wait_time is 0, not scheduling timer!");
		onTimerExpired();
		} else {
		// We now register PlayerJoinListener, so we can abort the timer
		// if a player joins in the meantime
		// XXX: This might be racy: if the Listener is activated before we
		// set the timer, we might crash when trying to abort the timer not
		// yet running!
		log.finer("Registering PlayerJoinListener...");
		getServer().getPluginManager()
		.registerEvents(this.playerJoinListener, this);

		log.finer("Creating and scheduling timer...");
		this.idleTimer = new Timer();
		TimerTask idleTimerTask = new TimerTask() {
		@Override
		@@ -118,6 +142,7 @@ public class IdleShutdown extends JavaPlugin {
		onTimerExpired();
		}
		};
		this.idleTimer.schedule(idleTimerTask, 30*1000);
		this.idleTimer.schedule(idleTimerTask, this.idleWaitTime*1000);
		}
		}
		}

src/main/resources/config.yml

0 → 100644

+5 −0

Original line number	Diff line number	Diff line
		---
		# After the last player left, how long should the server wait before
		# shutting down? Time in seconds.
		# This is not influenced by the servers tick rate.
		idle_wait_time: 30

src/main/resources/plugin.yml

+2 −1

Original line number	Diff line number	Diff line
		---
		name: IdleShutdown
		website: https://git.revreso.de/gigadoc2/spigot-idle-shutdown
		description: Shut down spigot when no one is online.
		author: Gigadoc2
		version: 0.1.0
		version: 1.0.0

		main: jetzt.nicht.minecraft.idleShutdown.IdleShutdown