Use quicker ban lookup to reduce /seen lag.

Author: khobbits

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

@@ -1,6 +1,7 @@
 package com.earth2me.essentials;
 
 import static com.earth2me.essentials.I18n.tl;
+import com.earth2me.essentials.craftbukkit.BanLookup;
 import com.earth2me.essentials.craftbukkit.FakeWorld;
 import com.earth2me.essentials.settings.Spawns;
 import com.earth2me.essentials.storage.YamlStorageWriter;
@@ -729,7 +730,7 @@ public void banFormatChange()
 					banTimeout = 0L;
 				}
 
-				if (ess.getServer().getBanList(BanList.Type.NAME).isBanned(playerName))
+				if (BanLookup.isBanned(ess, playerName))
 				{
 					updateBan(playerName, banReason, banTimeout);
 				}

Essentials/src/com/earth2me/essentials/commands/Commandseen.java

@@ -4,15 +4,14 @@
 import static com.earth2me.essentials.I18n.tl;
 import com.earth2me.essentials.User;
 import com.earth2me.essentials.UserMap;
+import com.earth2me.essentials.craftbukkit.BanLookup;
 import com.earth2me.essentials.utils.DateUtil;
 import com.earth2me.essentials.utils.FormatUtil;
 import com.earth2me.essentials.utils.StringUtil;
-import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 import org.bukkit.BanList;
-import org.bukkit.Bukkit;
 import java.util.UUID;
 import org.bukkit.BanEntry;
 import org.bukkit.Location;
@@ -64,9 +63,9 @@ else if (ess.getServer().getBanList(BanList.Type.IP).isBanned(args[0]))
 					sender.sendMessage(tl("isIpBanned", args[0]));
 					return;
 				}
-				else if (ess.getServer().getBanList(BanList.Type.NAME).isBanned(args[0]))
+				else if (BanLookup.isBanned(ess, args[0]))
 				{
-					sender.sendMessage(tl("whoisBanned", showBan ? ess.getServer().getBanList(BanList.Type.NAME).getBanEntry(args[0]).getReason() : tl("true")));
+					sender.sendMessage(tl("whoisBanned", showBan ? BanLookup.getBanEntry(ess, args[0]).getReason() : tl("true")));
 					return;
 				}
 				else
@@ -145,9 +144,9 @@ private void seenOffline(final Server server, final CommandSource sender, User u
 			sender.sendMessage(tl("seenAccounts", StringUtil.joinListSkip(", ", user.getName(), history)));
 		}
 
-		if (user.getBase().isBanned())
+		if (BanLookup.isBanned(ess, user))
 		{
-			final BanEntry banEntry = ess.getServer().getBanList(BanList.Type.NAME).getBanEntry(user.getName());
+			final BanEntry banEntry = BanLookup.getBanEntry(ess, user.getName());
 			final String reason = showBan ? banEntry.getReason() : tl("true");
 			sender.sendMessage(tl("whoisBanned", reason));
 			if (banEntry.getExpiration() != null)
@@ -161,6 +160,7 @@ private void seenOffline(final Server server, final CommandSource sender, User u
 				sender.sendMessage(tl("whoisTempBanned", expireString));
 			}
 		}
+
 		final String location = user.getGeoLocation();
 		if (location != null && (!(sender.isPlayer()) || ess.getUser(sender.getPlayer()).isAuthorized("essentials.geoip.show")))
 		{

Essentials/src/com/earth2me/essentials/craftbukkit/BanLookup.java

@@ -0,0 +1,36 @@
+package com.earth2me.essentials.craftbukkit;
+
+import com.earth2me.essentials.User;
+import java.util.Iterator;
+import java.util.Set;
+import net.ess3.api.IEssentials;
+import org.bukkit.BanEntry;
+import org.bukkit.BanList;
+
+
+public class BanLookup
+{
+	public static Boolean isBanned(IEssentials ess, User user)
+	{
+		return isBanned(ess, user.getName());
+	}
+
+	public static Boolean isBanned(IEssentials ess, String name)
+	{
+		return getBanEntry(ess, name) != null;		
+	}
+	
+	public static BanEntry getBanEntry(IEssentials ess, String name)
+	{
+		Set<BanEntry> benteries = ess.getServer().getBanList(BanList.Type.NAME).getBanEntries();
+		for (BanEntry banEnt : benteries)
+		{
+			if (banEnt.getTarget().equals(name))
+			{
+				return banEnt;
+			}
+		}
+		return null;
+	}
+	
+}

Essentials/src/plugin.yml

@@ -229,7 +229,7 @@ commands:
   mail:
     description: Manages inter-player, intra-server mail.
     usage: /<command> [read|clear|send [to] [message]|sendall [message]]
-    aliases: [email,eemail]
+    aliases: [email,eemail,memo,ememo]
   me:
     description: Describes an action in the context of the player.
     usage: /<command> <description>