#1113 Create LimboService (work in progress)

- Introduce new LimboService with a higher level abstraction for outside classes to trigger LimboPlayer actions
- Add methods to LimboPlayerTaskManager for muting the MessagesTask safely

src/main/java/fr/xephi/authme/data/limbo/LimboCache.java

@@ -15,7 +15,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
 /**
  * Manages all {@link LimboPlayer} instances.
  */
-public class LimboCache {
+class LimboCache {
 
     private final Map<String, LimboPlayer> cache = new ConcurrentHashMap<>();
 

src/main/java/fr/xephi/authme/data/limbo/LimboPlayerStorage.java

@@ -29,7 +29,7 @@ import java.nio.charset.StandardCharsets;
 /**
  * Class used to store player's data (OP, flying, speed, position) to disk.
  */
-public class LimboPlayerStorage {
+class LimboPlayerStorage {
 
     private final Gson gson;
     private final File cacheDir;

src/main/java/fr/xephi/authme/data/limbo/LimboService.java

@@ -0,0 +1,60 @@
+package fr.xephi.authme.data.limbo;
+
+import org.bukkit.entity.Player;
+
+import javax.inject.Inject;
+
+/**
+ * Service for managing players that are in "limbo," a temporary state players are
+ * put in which have joined but not yet logged in yet.
+ */
+public class LimboService {
+
+    @Inject
+    private LimboCache limboCache;
+
+    LimboService() {
+    }
+
+
+    /**
+     * Restores the limbo data and subsequently deletes the entry.
+     *
+     * @param player the player whose data should be restored
+     */
+    public void restoreData(Player player) {
+        // TODO #1113: Think about architecture for various "restore" strategies
+        limboCache.restoreData(player);
+        limboCache.deletePlayerData(player);
+    }
+
+    /**
+     * Returns the limbo player for the given name, or null otherwise.
+     *
+     * @param name the name to retrieve the data for
+     * @return the associated limbo player, or null if none available
+     */
+    public LimboPlayer getLimboPlayer(String name) {
+        return limboCache.getPlayerData(name);
+    }
+
+    /**
+     * Returns whether there is a limbo player for the given name.
+     *
+     * @param name the name to check
+     * @return true if present, false otherwise
+     */
+    public boolean hasLimboPlayer(String name) {
+        return limboCache.hasPlayerData(name);
+    }
+
+    /**
+     * Creates a LimboPlayer for the given player.
+     *
+     * @param player the player to process
+     */
+    public void createLimboPlayer(Player player) {
+        // TODO #1113: We should remove the player's data in here as well
+        limboCache.addPlayerData(player);
+    }
+}