Merge pull request #1035 from Owain94/http-api-rx-calls

http-api: rx calls

http-api/src/main/java/net/runelite/http/api/item/ItemClient.java

@@ -26,6 +26,7 @@ package net.runelite.http.api.item;
 
 import com.google.gson.JsonParseException;
 import com.google.gson.reflect.TypeToken;
+import io.reactivex.Observable;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.io.InputStream;
@@ -112,7 +113,7 @@ public class ItemClient
 		}
 	}
 
-	public BufferedImage getIcon(int itemId) throws IOException
+	public Observable<BufferedImage> getIcon(int itemId)
 	{
 		HttpUrl url = RuneLiteAPI.getApiBase().newBuilder()
 			.addPathSegment("item")
@@ -126,23 +127,26 @@ public class ItemClient
 			.url(url)
 			.build();
 
-		try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
+		return Observable.defer(() ->
 		{
-			if (!response.isSuccessful())
+			try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
 			{
-				logger.debug("Error grabbing icon {}: {}", itemId, response);
-				return null;
-			}
+				if (!response.isSuccessful())
+				{
+					logger.debug("Error grabbing icon {}: {}", itemId, response);
+					return Observable.just(null);
+				}
 
-			InputStream in = response.body().byteStream();
-			synchronized (ImageIO.class)
-			{
-				return ImageIO.read(in);
+				InputStream in = response.body().byteStream();
+				synchronized (ImageIO.class)
+				{
+					return Observable.just(ImageIO.read(in));
+				}
 			}
-		}
+		});
 	}
 
-	public SearchResult search(String itemName) throws IOException
+	public Observable<SearchResult> search(String itemName)
 	{
 		HttpUrl url = RuneLiteAPI.getApiBase().newBuilder()
 			.addPathSegment("item")
@@ -152,28 +156,31 @@ public class ItemClient
 
 		logger.debug("Built URI: {}", url);
 
-		Request request = new Request.Builder()
-			.url(url)
-			.build();
-
-		try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
+		return Observable.defer(() ->
 		{
-			if (!response.isSuccessful())
+			Request request = new Request.Builder()
+				.url(url)
+				.build();
+
+			try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
 			{
-				logger.debug("Error looking up item {}: {}", itemName, response);
-				return null;
-			}
+				if (!response.isSuccessful())
+				{
+					logger.debug("Error looking up item {}: {}", itemName, response);
+					return Observable.just(null);
+				}
 
-			InputStream in = response.body().byteStream();
-			return RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), SearchResult.class);
-		}
-		catch (JsonParseException ex)
-		{
-			throw new IOException(ex);
-		}
+				InputStream in = response.body().byteStream();
+				return Observable.just(RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), SearchResult.class));
+			}
+			catch (JsonParseException ex)
+			{
+				return Observable.error(ex);
+			}
+		});
 	}
 
-	public ItemPrice[] getPrices() throws IOException
+	public Observable<ItemPrice[]> getPrices()
 	{
 		HttpUrl.Builder urlBuilder = RuneLiteAPI.getApiBase().newBuilder()
 			.addPathSegment("item")
@@ -183,28 +190,32 @@ public class ItemClient
 
 		logger.debug("Built URI: {}", url);
 
-		Request request = new Request.Builder()
-			.url(url)
-			.build();
 
-		try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
+		return Observable.defer(() ->
 		{
-			if (!response.isSuccessful())
+			Request request = new Request.Builder()
+				.url(url)
+				.build();
+
+			try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
 			{
-				logger.warn("Error looking up prices: {}", response);
-				return null;
-			}
+				if (!response.isSuccessful())
+				{
+					logger.warn("Error looking up prices: {}", response);
+					return Observable.just(null);
+				}
 
-			InputStream in = response.body().byteStream();
-			return RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), ItemPrice[].class);
-		}
-		catch (JsonParseException ex)
-		{
-			throw new IOException(ex);
-		}
+				InputStream in = response.body().byteStream();
+				return Observable.just(RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), ItemPrice[].class));
+			}
+			catch (JsonParseException ex)
+			{
+				return Observable.error(ex);
+			}
+		});
 	}
 
-	public Map<Integer, ItemStats> getStats() throws IOException
+	public Observable<Map<Integer, ItemStats>> getStats()
 	{
 		HttpUrl.Builder urlBuilder = RuneLiteAPI.getStaticBase().newBuilder()
 			.addPathSegment("item")
@@ -215,27 +226,31 @@ public class ItemClient
 
 		logger.debug("Built URI: {}", url);
 
-		Request request = new Request.Builder()
-			.url(url)
-			.build();
 
-		try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
+		return Observable.defer(() ->
 		{
-			if (!response.isSuccessful())
+			Request request = new Request.Builder()
+				.url(url)
+				.build();
+
+			try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
 			{
-				logger.warn("Error looking up item stats: {}", response);
-				return null;
+				if (!response.isSuccessful())
+				{
+					logger.warn("Error looking up item stats: {}", response);
+					return Observable.just(null);
+				}
+
+				InputStream in = response.body().byteStream();
+				final Type typeToken = new TypeToken<Map<Integer, ItemStats>>()
+				{
+				}.getType();
+				return Observable.just(RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), typeToken));
 			}
-
-			InputStream in = response.body().byteStream();
-			final Type typeToken = new TypeToken<Map<Integer, ItemStats>>()
+			catch (JsonParseException ex)
 			{
-			}.getType();
-			return RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), typeToken);
-		}
-		catch (JsonParseException ex)
-		{
-			throw new IOException(ex);
-		}
+				return Observable.error(ex);
+			}
+		});
 	}
 }

http-api/src/main/java/net/runelite/http/api/osbuddy/OSBGrandExchangeClient.java

@@ -58,7 +58,7 @@ public class OSBGrandExchangeClient
 			{
 				if (!response.isSuccessful())
 				{
-					throw new IOException("Error looking up item id: " + response);
+					return Observable.error(new IOException("Error looking up item id: " + response));
 				}
 
 				final InputStream in = response.body().byteStream();

http-api/src/main/java/net/runelite/http/api/worlds/WorldClient.java

@@ -26,6 +26,9 @@
 package net.runelite.http.api.worlds;
 
 import com.google.gson.JsonParseException;
+import io.reactivex.Observable;
+import java.io.InputStream;
+import java.io.InputStreamReader;
 import net.runelite.http.api.RuneLiteAPI;
 import okhttp3.HttpUrl;
 import okhttp3.Request;
@@ -33,15 +36,11 @@ import okhttp3.Response;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-
 public class WorldClient
 {
 	private static final Logger logger = LoggerFactory.getLogger(WorldClient.class);
 
-	public WorldResult lookupWorlds() throws IOException
+	public Observable<WorldResult> lookupWorlds()
 	{
 		HttpUrl url = RuneLiteAPI.getApiBase().newBuilder()
 			.addPathSegment("worlds.js")
@@ -49,24 +48,27 @@ public class WorldClient
 
 		logger.debug("Built URI: {}", url);
 
-		Request request = new Request.Builder()
-			.url(url)
-			.build();
-
-		try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
+		return Observable.defer(() ->
 		{
-			if (!response.isSuccessful())
+			Request request = new Request.Builder()
+				.url(url)
+				.build();
+
+			try (Response response = RuneLiteAPI.CLIENT.newCall(request).execute())
 			{
-				logger.debug("Error looking up worlds: {}", response);
-				return null;
-			}
+				if (!response.isSuccessful())
+				{
+					logger.debug("Error looking up worlds: {}", response);
+					return Observable.just(null);
+				}
 
-			InputStream in = response.body().byteStream();
-			return RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), WorldResult.class);
-		}
-		catch (JsonParseException ex)
-		{
-			throw new IOException(ex);
-		}
+				InputStream in = response.body().byteStream();
+				return Observable.just(RuneLiteAPI.GSON.fromJson(new InputStreamReader(in), WorldResult.class));
+			}
+			catch (JsonParseException ex)
+			{
+				return Observable.error(ex);
+			}
+		});
 	}
 }

runelite-client/src/main/java/net/runelite/client/callback/ClientThread.java

@@ -27,14 +27,16 @@ package net.runelite.client.callback;
 import com.google.inject.Inject;
 import java.util.Iterator;
 import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.Executor;
 import java.util.function.BooleanSupplier;
 import javax.inject.Singleton;
 import lombok.extern.slf4j.Slf4j;
 import net.runelite.api.Client;
+import org.jetbrains.annotations.NotNull;
 
 @Singleton
 @Slf4j
-public class ClientThread
+public class ClientThread implements Executor
 {
 	private final ConcurrentLinkedQueue<BooleanSupplier> invokes = new ConcurrentLinkedQueue<>();
 
@@ -112,4 +114,14 @@ public class ClientThread
 			}
 		}
 	}
+
+	@Override
+	public void execute(@NotNull Runnable r)
+	{
+		invoke(() ->
+		{
+			r.run();
+			return true;
+		});
+	}
 }

runelite-client/src/main/java/net/runelite/client/game/ItemManager.java

@@ -30,9 +30,9 @@ import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableMap;
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
+import io.reactivex.schedulers.Schedulers;
 import java.awt.Color;
 import java.awt.image.BufferedImage;
-import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.lang.reflect.Type;
@@ -142,6 +142,7 @@ public class ItemManager
 	private final LoadingCache<OutlineKey, BufferedImage> itemOutlines;
 	private Map<Integer, ItemPrice> itemPrices = Collections.emptyMap();
 	private Map<Integer, ItemStats> itemStats = Collections.emptyMap();
+
 	@Inject
 	public ItemManager(
 		Client client,
@@ -209,43 +210,43 @@ public class ItemManager
 
 	private void loadPrices()
 	{
-		try
-		{
-			ItemPrice[] prices = itemClient.getPrices();
-			if (prices != null)
-			{
-				ImmutableMap.Builder<Integer, ItemPrice> map = ImmutableMap.builderWithExpectedSize(prices.length);
-				for (ItemPrice price : prices)
+		itemClient.getPrices()
+			.subscribeOn(Schedulers.io())
+			.subscribe(
+				(prices) ->
 				{
-					map.put(price.getId(), price);
-				}
-				itemPrices = map.build();
-			}
+					if (prices != null)
+					{
+						ImmutableMap.Builder<Integer, ItemPrice> map = ImmutableMap.builderWithExpectedSize(prices.length);
+						for (ItemPrice price : prices)
+						{
+							map.put(price.getId(), price);
+						}
+						itemPrices = map.build();
+					}
 
-			log.debug("Loaded {} prices", itemPrices.size());
-		}
-		catch (IOException e)
-		{
-			log.warn("error loading prices!", e);
-		}
+					log.debug("Loaded {} prices", itemPrices.size());
+				},
+				(e) -> log.warn("error loading prices!", e)
+			);
 	}
 
 	private void loadStats()
 	{
-		try
-		{
-			final Map<Integer, ItemStats> stats = itemClient.getStats();
-			if (stats != null)
-			{
-				itemStats = ImmutableMap.copyOf(stats);
-			}
+		itemClient.getStats()
+			.subscribeOn(Schedulers.io())
+			.subscribe(
+				(stats) ->
+				{
+					if (stats != null)
+					{
+						itemStats = ImmutableMap.copyOf(stats);
+					}
 
-			log.debug("Loaded {} stats", itemStats.size());
-		}
-		catch (IOException e)
-		{
-			log.warn("error loading stats!", e);
-		}
+					log.debug("Loaded {} stats", itemStats.size());
+				},
+				(e) -> log.warn("error loading stats!", e)
+			);
 	}
 
 	private void onGameStateChanged(final GameStateChanged event)
@@ -285,7 +286,7 @@ public class ItemManager
 	/**
 	 * Look up an item's price
 	 *
-	 * @param itemID item id
+	 * @param itemID               item id
 	 * @param ignoreUntradeableMap should the price returned ignore the {@link UntradeableItemMapping}
 	 * @return item price
 	 */

runelite-client/src/main/java/net/runelite/client/plugins/chatcommands/ChatCommandsPlugin.java

@@ -827,45 +827,45 @@ public class ChatCommandsPlugin extends Plugin
 		{
 			ItemPrice item = retrieveFromList(results, search);
 			CLIENT.lookupItem(item.getId())
-				.subscribeOn(Schedulers.single())
+				.subscribeOn(Schedulers.io())
+				.observeOn(Schedulers.from(clientThread))
 				.subscribe(
 					(osbresult) ->
-						clientThread.invoke(() ->
+					{
+						int itemId = item.getId();
+						int itemPrice = itemManager.getItemPrice(itemId);
+
+						final ChatMessageBuilder builder = new ChatMessageBuilder();
+						builder.append(ChatColorType.NORMAL);
+						builder.append(ChatColorType.HIGHLIGHT);
+						builder.append(item.getName());
+						builder.append(ChatColorType.NORMAL);
+						builder.append(": GE ");
+						builder.append(ChatColorType.HIGHLIGHT);
+						builder.append(StackFormatter.formatNumber(itemPrice));
+						builder.append(ChatColorType.NORMAL);
+						builder.append(": OSB ");
+						builder.append(ChatColorType.HIGHLIGHT);
+						builder.append(StackFormatter.formatNumber(osbresult.getOverall_average()));
+
+						ItemDefinition itemComposition = itemManager.getItemDefinition(itemId);
+						if (itemComposition != null)
 						{
-							int itemId = item.getId();
-							int itemPrice = itemManager.getItemPrice(itemId);
+							int alchPrice = itemManager.getAlchValue(itemId);
+							builder
+								.append(ChatColorType.NORMAL)
+								.append(" HA value ")
+								.append(ChatColorType.HIGHLIGHT)
+								.append(StackFormatter.formatNumber(alchPrice));
+						}
 
-							final ChatMessageBuilder builder = new ChatMessageBuilder();
-							builder.append(ChatColorType.NORMAL);
-							builder.append(ChatColorType.HIGHLIGHT);
-							builder.append(item.getName());
-							builder.append(ChatColorType.NORMAL);
-							builder.append(": GE ");
-							builder.append(ChatColorType.HIGHLIGHT);
-							builder.append(StackFormatter.formatNumber(itemPrice));
-							builder.append(ChatColorType.NORMAL);
-							builder.append(": OSB ");
-							builder.append(ChatColorType.HIGHLIGHT);
-							builder.append(StackFormatter.formatNumber(osbresult.getOverall_average()));
+						String response = builder.build();
 
-							ItemDefinition itemComposition = itemManager.getItemDefinition(itemId);
-							if (itemComposition != null)
-							{
-								int alchPrice = itemManager.getAlchValue(itemId);
-								builder
-									.append(ChatColorType.NORMAL)
-									.append(" HA value ")
-									.append(ChatColorType.HIGHLIGHT)
-									.append(StackFormatter.formatNumber(alchPrice));
-							}
-
-							String response = builder.build();
-
-							log.debug("Setting response {}", response);
-							messageNode.setRuneLiteFormatMessage(response);
-							chatMessageManager.update(messageNode);
-							client.refreshChat();
-						})
+						log.debug("Setting response {}", response);
+						messageNode.setRuneLiteFormatMessage(response);
+						chatMessageManager.update(messageNode);
+						client.refreshChat();
+					}
 				);
 		}
 	}

runelite-client/src/main/java/net/runelite/client/plugins/defaultworld/DefaultWorldPlugin.java

@@ -25,13 +25,14 @@
 package net.runelite.client.plugins.defaultworld;
 
 import com.google.inject.Provides;
-import java.io.IOException;
+import io.reactivex.schedulers.Schedulers;
 import javax.inject.Inject;
 import javax.inject.Singleton;
 import lombok.extern.slf4j.Slf4j;
 import net.runelite.api.Client;
 import net.runelite.api.GameState;
 import net.runelite.api.events.GameStateChanged;
+import net.runelite.client.callback.ClientThread;
 import net.runelite.client.config.ConfigManager;
 import net.runelite.client.eventbus.EventBus;
 import net.runelite.client.events.SessionOpen;
@@ -40,7 +41,6 @@ import net.runelite.client.plugins.PluginDescriptor;
 import net.runelite.client.util.WorldUtil;
 import net.runelite.http.api.worlds.World;
 import net.runelite.http.api.worlds.WorldClient;
-import net.runelite.http.api.worlds.WorldResult;
 
 @PluginDescriptor(
 	name = "Default World",
@@ -60,6 +60,9 @@ public class DefaultWorldPlugin extends Plugin
 	@Inject
 	private EventBus eventBus;
 
+	@Inject
+	private ClientThread clientThread;
+
 	private final WorldClient worldClient = new WorldClient();
 	private int worldCache;
 	private boolean worldChangeRequired;
@@ -122,39 +125,39 @@ public class DefaultWorldPlugin extends Plugin
 			return;
 		}
 
-		try
-		{
-			final WorldResult worldResult = worldClient.lookupWorlds();
+		worldClient.lookupWorlds()
+			.subscribeOn(Schedulers.io())
+			.observeOn(Schedulers.from(clientThread))
+			.subscribe(
+				(worldResult) ->
+				{
+					if (worldResult == null)
+					{
+						return;
+					}
 
-			if (worldResult == null)
-			{
-				return;
-			}
+					final World world = worldResult.findWorld(correctedWorld);
 
-			final World world = worldResult.findWorld(correctedWorld);
+					if (world != null)
+					{
+						final net.runelite.api.World rsWorld = client.createWorld();
+						rsWorld.setActivity(world.getActivity());
+						rsWorld.setAddress(world.getAddress());
+						rsWorld.setId(world.getId());
+						rsWorld.setPlayerCount(world.getPlayers());
+						rsWorld.setLocation(world.getLocation());
+						rsWorld.setTypes(WorldUtil.toWorldTypes(world.getTypes()));
 
-			if (world != null)
-			{
-				final net.runelite.api.World rsWorld = client.createWorld();
-				rsWorld.setActivity(world.getActivity());
-				rsWorld.setAddress(world.getAddress());
-				rsWorld.setId(world.getId());
-				rsWorld.setPlayerCount(world.getPlayers());
-				rsWorld.setLocation(world.getLocation());
-				rsWorld.setTypes(WorldUtil.toWorldTypes(world.getTypes()));
-
-				client.changeWorld(rsWorld);
-				log.debug("Applied new world {}", correctedWorld);
-			}
-			else
-			{
-				log.warn("World {} not found.", correctedWorld);
-			}
-		}
-		catch (IOException e)
-		{
-			log.warn("Error looking up world {}. Error: {}", correctedWorld, e);
-		}
+						client.changeWorld(rsWorld);
+						log.debug("Applied new world {}", correctedWorld);
+					}
+					else
+					{
+						log.warn("World {} not found.", correctedWorld);
+					}
+				},
+				(e) -> log.warn("Error looking up world {}. Error: {}", correctedWorld, e)
+			);
 	}
 
 	private void applyWorld()

runelite-client/src/main/java/net/runelite/client/plugins/examine/ExaminePlugin.java

@@ -370,37 +370,37 @@ public class ExaminePlugin extends Plugin
 			{
 				int finalQuantity = quantity;
 				CLIENT.lookupItem(id)
-					.subscribeOn(Schedulers.single())
+					.subscribeOn(Schedulers.io())
+					.observeOn(Schedulers.from(clientThread))
 					.subscribe(
 						(osbresult) ->
-							clientThread.invoke(() ->
+						{
+							message
+								.append(ChatColorType.NORMAL)
+								.append(" GE  ")
+								.append(ChatColorType.HIGHLIGHT)
+								.append(StackFormatter.formatNumber(gePrice * finalQuantity));
+
+							if (osbresult != null)
 							{
 								message
 									.append(ChatColorType.NORMAL)
-									.append(" GE  ")
+									.append(" OSB  ")
 									.append(ChatColorType.HIGHLIGHT)
-									.append(StackFormatter.formatNumber(gePrice * finalQuantity));
+									.append(StackFormatter.formatNumber(osbresult.getOverall_average() * finalQuantity));
+							}
 
-								if (osbresult != null)
-								{
-									message
-										.append(ChatColorType.NORMAL)
-										.append(" OSB  ")
-										.append(ChatColorType.HIGHLIGHT)
-										.append(StackFormatter.formatNumber(osbresult.getOverall_average() * finalQuantity));
-								}
-
-								if (finalQuantity > 1)
-								{
-									message
-										.append(ChatColorType.NORMAL)
-										.append(" (")
-										.append(ChatColorType.HIGHLIGHT)
-										.append(StackFormatter.formatNumber(gePrice))
-										.append(ChatColorType.NORMAL)
-										.append("ea)");
-								}
-							}),
+							if (finalQuantity > 1)
+							{
+								message
+									.append(ChatColorType.NORMAL)
+									.append(" (")
+									.append(ChatColorType.HIGHLIGHT)
+									.append(StackFormatter.formatNumber(gePrice))
+									.append(ChatColorType.NORMAL)
+									.append("ea)");
+							}
+						},
 						(e) -> log.error(e.toString())
 					);
 			}

runelite-client/src/main/java/net/runelite/client/plugins/grandexchange/GrandExchangePlugin.java

@@ -551,14 +551,14 @@ public class GrandExchangePlugin extends Plugin
 			}
 
 			CLIENT.lookupItem(itemId)
-				.subscribeOn(Schedulers.single())
+				.subscribeOn(Schedulers.io())
+				.observeOn(Schedulers.from(clientThread))
 				.subscribe(
 					(osbresult) ->
-						clientThread.invoke(() ->
-						{
-							final String text = geText.getText() + OSB_GE_TEXT + StackFormatter.formatNumber(osbresult.getOverall_average());
-							geText.setText(text);
-						}),
+					{
+						final String text = geText.getText() + OSB_GE_TEXT + StackFormatter.formatNumber(osbresult.getOverall_average());
+						geText.setText(text);
+					},
 					(e) -> log.debug("Error getting price of item {}", itemId, e)
 				);
 		});

runelite-client/src/main/java/net/runelite/client/plugins/worldhopper/WorldHopperPlugin.java

@@ -29,8 +29,8 @@ import com.google.common.base.Stopwatch;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ObjectArrays;
 import com.google.inject.Provides;
+import io.reactivex.schedulers.Schedulers;
 import java.awt.image.BufferedImage;
-import java.io.IOException;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.Comparator;
@@ -502,22 +502,21 @@ public class WorldHopperPlugin extends Plugin
 	{
 		log.debug("Fetching worlds");
 
-		try
-		{
-			WorldResult worldResult = new WorldClient().lookupWorlds();
-
-			if (worldResult != null)
-			{
-				worldResult.getWorlds().sort(Comparator.comparingInt(World::getId));
-				this.worldResult = worldResult;
-				this.lastFetch = Instant.now();
-				updateList();
-			}
-		}
-		catch (IOException ex)
-		{
-			log.warn("Error looking up worlds", ex);
-		}
+		new WorldClient().lookupWorlds()
+			.subscribeOn(Schedulers.io())
+			.subscribe(
+				(worldResult) ->
+				{
+					if (worldResult != null)
+					{
+						worldResult.getWorlds().sort(Comparator.comparingInt(World::getId));
+						this.worldResult = worldResult;
+						this.lastFetch = Instant.now();
+						updateList();
+					}
+				},
+				(ex) -> log.warn("Error looking up worlds", ex)
+			);
 	}
 
 	/**