Add proper logging and validation

3 files changed, 22 insertions, 13 deletions

diff --git a/build.gradle b/build.gradle
index bb64b9a0..d72cfc4f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,6 +22,7 @@ repositories {
 
 dependencies {
     compile 'com.google.code.gson:gson:2.8.0'
+    compile 'ch.qos.logback:logback-classic:1.0.13'
 
     compile 'org.springframework.boot:spring-boot-starter-websocket'
     compile 'org.webjars:webjars-locator'
diff --git a/src/main/java/org/luxons/sevenwonders/actions/JoinGameAction.java b/src/main/java/org/luxons/sevenwonders/actions/JoinGameAction.java
index a9a84d78..fc2e11d2 100644
--- a/src/main/java/org/luxons/sevenwonders/actions/JoinGameAction.java
+++ b/src/main/java/org/luxons/sevenwonders/actions/JoinGameAction.java
@@ -1,9 +1,16 @@
 package org.luxons.sevenwonders.actions;
 
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+
 public class JoinGameAction {
 
+    @NotNull
+    @Size(min=2, max=30)
     private String gameId;
 
+    @NotNull
+    @Size(min=2, max=20)
     private String playerName;
 
     public String getGameId() {
diff --git a/src/main/java/org/luxons/sevenwonders/controllers/LobbyController.java b/src/main/java/org/luxons/sevenwonders/controllers/LobbyController.java
index 4b1f8ed4..312214d6 100644
--- a/src/main/java/org/luxons/sevenwonders/controllers/LobbyController.java
+++ b/src/main/java/org/luxons/sevenwonders/controllers/LobbyController.java
@@ -9,16 +9,21 @@ import org.luxons.sevenwonders.game.Game;
 import org.luxons.sevenwonders.game.Lobby;
 import org.luxons.sevenwonders.game.Player;
 import org.luxons.sevenwonders.game.data.GameDefinitionLoader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.messaging.handler.annotation.MessageMapping;
 import org.springframework.messaging.handler.annotation.SendTo;
 import org.springframework.messaging.simp.SimpMessageHeaderAccessor;
 import org.springframework.stereotype.Controller;
+import org.springframework.validation.annotation.Validated;
 
 @Controller
 @MessageMapping("/lobby")
 public class LobbyController {
 
+    private static final Logger logger = LoggerFactory.getLogger(LobbyController.class);
+
     private final GameDefinitionLoader gameDefinitionLoader;
 
     private long lastGameId = 0;
@@ -34,41 +39,37 @@ public class LobbyController {
 
     @MessageMapping("/create-game")
     @SendTo("/topic/games")
-    public String createGame(SimpMessageHeaderAccessor headerAccessor) throws Exception {
-        System.out.println("Received message: " + headerAccessor.getSessionId());
-        Thread.sleep(1000); // simulated delay
-
+    public String createGame(SimpMessageHeaderAccessor headerAccessor, Principal principal) {
         long newId = lastGameId++;
         String id = String.valueOf(newId);
-        System.out.println("Creating game " + id);
 
         Lobby lobby = new Lobby(newId, gameDefinitionLoader.getGameDefinition());
         lobbies.put(id, lobby);
+        logger.info("Game {} created by {}", id, principal.getName());
         return id;
     }
 
     @MessageMapping("/join-game")
     @SendTo("/topic/players")
-    public Player joinGame(SimpMessageHeaderAccessor headerAccessor, JoinGameAction joinAction, Principal principal)
-            throws Exception {
-        Thread.sleep(1000); // simulated delay
-
+    public Player joinGame(SimpMessageHeaderAccessor headerAccessor, @Validated JoinGameAction action,
+            Principal principal) {
         Player player = (Player)headerAccessor.getSessionAttributes().get("player");
         Lobby lobby = (Lobby)headerAccessor.getSessionAttributes().get("lobby");
         if (player != null && lobby != null) {
-            System.out.println("Client has already joined game " + lobby.getId() + "under the name " + player.getName());
+            logger.warn("Client has already joined game {} under the name {}", lobby.getId(), player.getName());
             return player;
         }
-        System.out.println("Player " + joinAction.getPlayerName() + " joined game " + joinAction.getGameId());
 
-        lobby = lobbies.get(joinAction.getGameId());
-        Player newPlayer = new Player(joinAction.getPlayerName());
+        lobby = lobbies.get(action.getGameId());
+        Player newPlayer = new Player(action.getPlayerName());
         newPlayer.setUserName(principal.getName());
         lobby.addPlayer(newPlayer);
 
         headerAccessor.getSessionAttributes().put("player", newPlayer);
         headerAccessor.getSessionAttributes().put("lobby", lobby);
 
+        logger.warn("Player {} joined game {}", action.getPlayerName(), action.getGameId());
+
         return newPlayer;
     }
 }