Add a lag check for permission system checks.

This doesn't include normal permission checks, since the overhead could be detrimental.

Essentials/src/com/earth2me/essentials/ISettings.java

@@ -194,6 +194,8 @@ public interface ISettings extends IConf
 
 	long getEconomyLagWarning();
 	
+	long getPermissionsLagWarning();
+
 	void setEssentialsChatActive(boolean b);
 
 	long getMaxTempban();

Essentials/src/com/earth2me/essentials/Settings.java

@@ -557,6 +557,7 @@ public class Settings implements net.ess3.api.ISettings
 		mailsPerMinute = _getMailsPerMinute();
 		maxMoney = _getMaxMoney();
 		minMoney = _getMinMoney();
+		permissionsLagWarning = _getPermissionsLagWarning();
 		economyLagWarning = _getEconomyLagWarning();
 		economyLog = _isEcoLogEnabled();
 		economyLogUpdate = _isEcoLogUpdateEnabled();
@@ -1137,8 +1138,8 @@ public class Settings implements net.ess3.api.ISettings
 
 	private long _getEconomyLagWarning()
 	{
-		// Default to 20ms
+		// Default to 25ms
-		final long value = (long)(config.getDouble("economy-lag-warning", 20.0) * 1000000);
+		final long value = (long)(config.getDouble("economy-lag-warning", 25.0) * 1000000);
 		return value;
 	}
 
@@ -1148,6 +1149,22 @@ public class Settings implements net.ess3.api.ISettings
 		return economyLagWarning;
 	}
 	
+	// #easteregg
+	private long permissionsLagWarning;
+
+	private long _getPermissionsLagWarning()
+	{
+		// Default to 25ms
+		final long value = (long)(config.getDouble("permissions-lag-warning", 25.0) * 1000000);
+		return value;
+	}
+
+	@Override
+	public long getPermissionsLagWarning()
+	{
+		return permissionsLagWarning;
+	}
+
 	@Override
 	public long getMaxTempban()
 	{

Essentials/src/com/earth2me/essentials/perm/PermissionsHandler.java

@@ -1,5 +1,6 @@
 package com.earth2me.essentials.perm;
 
+import com.earth2me.essentials.Essentials;
 import java.util.Collections;
 import java.util.List;
 import java.util.logging.Level;
@@ -13,46 +14,50 @@ public class PermissionsHandler implements IPermissionsHandler
 {
 	private transient IPermissionsHandler handler = new NullPermissionsHandler();
 	private transient String defaultGroup = "default";
-	private final transient Plugin plugin;
+	private final transient Essentials ess;
 	private static final Logger LOGGER = Logger.getLogger("Essentials");
 	private transient boolean useSuperperms = false;
 
-	public PermissionsHandler(final Plugin plugin)
+	public PermissionsHandler(final Essentials plugin)
 	{
-		this.plugin = plugin;
+		this.ess = plugin;
 	}
 
-	public PermissionsHandler(final Plugin plugin, final boolean useSuperperms)
+	public PermissionsHandler(final Essentials plugin, final boolean useSuperperms)
 	{
-		this.plugin = plugin;
+		this.ess = plugin;
 		this.useSuperperms = useSuperperms;
 	}
 
-	public PermissionsHandler(final Plugin plugin, final String defaultGroup)
+	public PermissionsHandler(final Essentials plugin, final String defaultGroup)
 	{
-		this.plugin = plugin;
+		this.ess = plugin;
 		this.defaultGroup = defaultGroup;
 	}
 
 	@Override
 	public String getGroup(final Player base)
 	{
+		final long start = System.nanoTime();
 		String group = handler.getGroup(base);
 		if (group == null)
 		{
 			group = defaultGroup;
 		}
+		checkPermLag(start);
 		return group;
 	}
 
 	@Override
 	public List<String> getGroups(final Player base)
 	{
+		final long start = System.nanoTime();
 		List<String> groups = handler.getGroups(base);
 		if (groups == null || groups.isEmpty())
 		{
 			groups = Collections.singletonList(defaultGroup);
 		}
+		checkPermLag(start);
 		return Collections.unmodifiableList(groups);
 	}
 
@@ -65,7 +70,10 @@ public class PermissionsHandler implements IPermissionsHandler
 	@Override
 	public boolean inGroup(final Player base, final String group)
 	{
-		return handler.inGroup(base, group);
+		final long start = System.nanoTime();
+		final boolean result = handler.inGroup(base, group);
+		checkPermLag(start);
+		return result;
 	}
 
 	@Override
@@ -77,28 +85,32 @@ public class PermissionsHandler implements IPermissionsHandler
 	@Override
 	public String getPrefix(final Player base)
 	{
+		final long start = System.nanoTime();
 		String prefix = handler.getPrefix(base);
 		if (prefix == null)
 		{
 			prefix = "";
 		}
+		checkPermLag(start);
 		return prefix;
 	}
 
 	@Override
 	public String getSuffix(final Player base)
 	{
+		final long start = System.nanoTime();
 		String suffix = handler.getSuffix(base);
 		if (suffix == null)
 		{
 			suffix = "";
 		}
+		checkPermLag(start);
 		return suffix;
 	}
 
 	public void checkPermissions()
 	{
-		final PluginManager pluginManager = plugin.getServer().getPluginManager();
+		final PluginManager pluginManager = ess.getServer().getPluginManager();
 
 		final Plugin permExPlugin = pluginManager.getPlugin("PermissionsEx");
 		if (permExPlugin != null && permExPlugin.isEnabled())
@@ -172,7 +184,7 @@ public class PermissionsHandler implements IPermissionsHandler
 			if (!(handler instanceof ZPermissionsHandler))
 			{
 				LOGGER.log(Level.INFO, "Essentials: Using zPermissions based permissions.");
-				handler = new ZPermissionsHandler(plugin);
+				handler = new ZPermissionsHandler(ess);
 			}
 			return;
 		}
@@ -191,7 +203,7 @@ public class PermissionsHandler implements IPermissionsHandler
 			{
 				LOGGER.log(Level.INFO, "Essentials: Using config file enhanced permissions.");
 				LOGGER.log(Level.INFO, "Permissions listed in as player-commands will be given to all users.");
-				handler = new ConfigPermissionsHandler(plugin);
+				handler = new ConfigPermissionsHandler(ess);
 			}
 		}
 	}
@@ -205,4 +217,13 @@ public class PermissionsHandler implements IPermissionsHandler
 	{
 		return handler.getClass().getSimpleName().replace("Handler", "");
 	}
+
+	private void checkPermLag(long start)
+	{
+		final long elapsed = System.nanoTime() - start;
+		if (elapsed > ess.getSettings().getPermissionsLagWarning())
+		{
+			ess.getLogger().log(Level.INFO, "Lag Notice - Slow Permissions System (" + getName() + ") Response - Request took over {0}ms!", elapsed / 1000000.0);
+		}
+	}
 }