From 7c013fa437252147a8c20f8eab07e4a0db8a3cc5 Mon Sep 17 00:00:00 2001
From: KHobbits <rob@khobbits.co.uk>
Date: Mon, 16 Jun 2014 19:55:34 +0100
Subject: Add spawn location cache to reduce blocking on player respawn.

---
 .../earth2me/essentials/spawn/SpawnStorage.java    | 61 ++++++++++++++++------
 1 file changed, 44 insertions(+), 17 deletions(-)

(limited to 'EssentialsSpawn')

diff --git a/EssentialsSpawn/src/com/earth2me/essentials/spawn/SpawnStorage.java b/EssentialsSpawn/src/com/earth2me/essentials/spawn/SpawnStorage.java
index 36b6f9662..c8e12563c 100644
--- a/EssentialsSpawn/src/com/earth2me/essentials/spawn/SpawnStorage.java
+++ b/EssentialsSpawn/src/com/earth2me/essentials/spawn/SpawnStorage.java
@@ -8,18 +8,29 @@ import java.io.File;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 import org.bukkit.Location;
 import org.bukkit.World;
 
 
 public class SpawnStorage extends AsyncStorageObjectHolder<Spawns> implements IEssentialsModule
 {
+	private ConcurrentMap<String, Location> spawns;
+
 	public SpawnStorage(final IEssentials ess)
 	{
 		super(ess, Spawns.class);
 		reloadConfig();
 	}
 
+	@Override
+	public final void reloadConfig()
+	{
+		super.reloadConfig();
+		spawns = new ConcurrentHashMap<String, Location>();
+	}
+
 	@Override
 	public File getStorageFile()
 	{
@@ -52,6 +63,8 @@ public class SpawnStorage extends AsyncStorageObjectHolder<Spawns> implements IE
 			unlock();
 		}
 
+		spawns.clear();
+
 		if ("default".equalsIgnoreCase(group))
 		{
 			loc.getWorld().setSpawnLocation(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ());
@@ -60,29 +73,43 @@ public class SpawnStorage extends AsyncStorageObjectHolder<Spawns> implements IE
 
 	public Location getSpawn(final String group)
 	{
-		acquireReadLock();
-		try
+		Location spawnLocation;
+		if (spawns.containsKey(group))
 		{
-			if (getData().getSpawns() == null || group == null)
-			{
-				return getWorldSpawn();
-			}
-			final Map<String, Location> spawnMap = getData().getSpawns();
-			String groupName = group.toLowerCase(Locale.ENGLISH);
-			if (!spawnMap.containsKey(groupName))
+			spawnLocation = spawns.get(group);
+		}
+		else
+		{
+			acquireReadLock();
+			try
 			{
-				groupName = "default";
+				if (getData().getSpawns() == null || group == null)
+				{
+					return getWorldSpawn();
+				}
+				final Map<String, Location> spawnMap = getData().getSpawns();
+				String groupName = group.toLowerCase(Locale.ENGLISH);
+				if (!spawnMap.containsKey(groupName))
+				{
+					groupName = "default";
+				}
+				if (!spawnMap.containsKey(groupName))
+				{
+					spawnLocation = getWorldSpawn();
+				}
+				else
+				{
+					spawnLocation = spawnMap.get(groupName);
+				}
 			}
-			if (!spawnMap.containsKey(groupName))
+			finally
 			{
-				return getWorldSpawn();
+				unlock();
 			}
-			return spawnMap.get(groupName);
-		}
-		finally
-		{
-			unlock();
+
+			spawns.put(group, spawnLocation);
 		}
+		return spawnLocation;
 	}
 
 	private Location getWorldSpawn()
-- 
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