world service: split controller from service and add cache

http-service/src/main/java/net/runelite/http/service/updatecheck/UpdateCheckService.java

@@ -138,7 +138,7 @@ public class UpdateCheckService
 	{
 		try
 		{
-			WorldResult worldResult = worldsService.listWorlds();
+			WorldResult worldResult = worldsService.getWorlds();
 			List<World> worlds = worldResult.getWorlds();
 			Random rand = new Random();
 			return worlds.get(rand.nextInt(worlds.size()));

http-service/src/main/java/net/runelite/http/service/worlds/WorldController.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.http.service.worlds;
+
+import com.google.common.base.Suppliers;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import java.util.function.Supplier;
+import lombok.extern.slf4j.Slf4j;
+import net.runelite.http.api.worlds.WorldResult;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.CacheControl;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/worlds")
+@Slf4j
+public class WorldController
+{
+	@Autowired
+	private WorldsService worldsService;
+
+	private final Supplier<WorldResult> worlds = Suppliers.memoizeWithExpiration(() ->
+	{
+		try
+		{
+			return worldsService.getWorlds();
+		}
+		catch (IOException ex)
+		{
+			log.warn(null, ex);
+			throw new RuntimeException(ex);
+		}
+	}, 10, TimeUnit.MINUTES);
+
+	@RequestMapping
+	public ResponseEntity<WorldResult> listWorlds() throws IOException
+	{
+		return ResponseEntity.ok()
+			.cacheControl(CacheControl.maxAge(10, TimeUnit.MINUTES).cachePublic())
+			.body(worldsService.getWorlds());
+	}
+}

http-service/src/main/java/net/runelite/http/service/worlds/WorldsService.java

@@ -36,19 +36,16 @@ import net.runelite.http.api.worlds.WorldType;
 import okhttp3.HttpUrl;
 import okhttp3.Request;
 import okhttp3.Response;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.stereotype.Service;
 
-@RestController
-@RequestMapping("/worlds")
+@Service
 public class WorldsService
 {
 	private static final HttpUrl WORLD_URL = HttpUrl.parse("http://www.runescape.com/g=oldscape/slr.ws?order=LPWM");
 
 	private HttpUrl url = WORLD_URL;
 
-	@RequestMapping
-	public WorldResult listWorlds() throws IOException
+	public WorldResult getWorlds() throws IOException
 	{
 		Request okrequest = new Request.Builder()
 			.url(url)

http-service/src/test/java/net/runelite/http/service/worlds/WorldsServiceTest.java

@@ -71,7 +71,7 @@ public class WorldsServiceTest
 		WorldsService worlds = new WorldsService();
 		worlds.setUrl(server.url("/"));
 
-		WorldResult worldResult = worlds.listWorlds();
+		WorldResult worldResult = worlds.getWorlds();
 		assertEquals(82, worldResult.getWorlds().size());
 
 		World world = worldResult.findWorld(385);