Added support for tracking multiple percentilers for a particular game.

git-svn-id: svn+ssh://src.earth.threerings.net/vilya/trunk@766 c613c5cb-e716-0410-b11b-feb51c14d237

src/java/com/threerings/parlor/rating/server/persist/PercentileRecord.java

@@ -42,6 +42,13 @@ public class PercentileRecord extends PersistentRecord
     public static final ColumnExp GAME_ID_C =
         new ColumnExp(PercentileRecord.class, GAME_ID);
 
+    /** The column identifier for the {@link #gameMode} field. */
+    public static final String GAME_MODE = "gameMode";
+
+    /** The qualified column identifier for the {@link #gameMode} field. */
+    public static final ColumnExp GAME_MODE_C =
+        new ColumnExp(PercentileRecord.class, GAME_MODE);
+
     /** The column identifier for the {@link #data} field. */
     public static final String DATA = "data";
 
@@ -51,11 +58,13 @@ public class PercentileRecord extends PersistentRecord
     // AUTO-GENERATED: FIELDS END
 
     /** Increment this value to reflect changes to this object's schema. */
-    public static final int SCHEMA_VERSION = 3;
+    public static final int SCHEMA_VERSION = 4;
 
     /** The id of the game for which we're tracking a percentile distribution. */
-    @Id
+    @Id public int gameId;
-    public int gameId;
+
+    /** The mode of the game. Games can maintain distributions for many different modes. */
+    @Id public int gameMode;
 
     /** The raw percentiler data. */
     @Column(length=500)
@@ -66,12 +75,12 @@ public class PercentileRecord extends PersistentRecord
      * Create and return a primary {@link Key} to identify a {@link PercentileRecord}
      * with the supplied key values.
      */
-    public static Key<PercentileRecord> getKey (int gameId)
+    public static Key<PercentileRecord> getKey (int gameId, int gameMode)
     {
         return new Key<PercentileRecord>(
                 PercentileRecord.class,
-                new String[] { GAME_ID },
+                new String[] { GAME_ID, GAME_MODE },
-                new Comparable[] { gameId });
+                new Comparable[] { gameId, gameMode });
     }
     // AUTO-GENERATED: METHODS END
 }

src/java/com/threerings/parlor/rating/server/persist/RatingRepository.java

@@ -26,8 +26,10 @@ import java.sql.Timestamp;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
+import com.google.common.collect.Maps;
 import com.google.common.collect.Lists;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
@@ -157,26 +159,51 @@ public class RatingRepository extends DepotRepository
     }
 
     /**
-     * Loads the percentile distribution associated with the specified game. null will never be
+     * Loads the percentile distribution associated with the specified game and mode. null will
-     * returned, rather a blank percentiler will be created and returned.
+     * never be returned, rather a blank percentiler will be created and returned.
      */
-    public Percentiler loadPercentile (int gameId)
+    public Percentiler loadPercentile (int gameId, int gameMode)
     {
-        PercentileRecord record = load(PercentileRecord.class, PercentileRecord.getKey(gameId));
+        PercentileRecord record = load(
+            PercentileRecord.class, PercentileRecord.getKey(gameId, gameMode));
         return (record == null) ? new Percentiler() : new Percentiler(record.data);
     }
 
+    /**
+     * Loads all the percentile distributions associated with the specified game. The percentilers
+     * will be mapped by their game mode. The map may be zero size if the game has recorded no
+     * distributions.
+     */
+    public Map<Integer, Percentiler> loadPercentiles (int gameId)
+    {
+        Map<Integer, Percentiler> tilers = Maps.newHashMap();
+        for (PercentileRecord record : findAll(
+                 PercentileRecord.class, new Where(PercentileRecord.GAME_ID_C, gameId))) {
+            tilers.put(record.gameMode, new Percentiler(record.data));
+        }
+        return tilers;
+    }
+
     /**
      * Writes the supplied percentiler's data out to the database.
      */
-    public void updatePercentile (int gameId, Percentiler tiler)
+    public void updatePercentile (int gameId, int gameMode, Percentiler tiler)
     {
         PercentileRecord record = new PercentileRecord();
         record.gameId = gameId;
+        record.gameMode = gameMode;
         record.data = tiler.toBytes();
         store(record);
     }
 
+    /**
+     * Deletes all percentile records for the specified game.
+     */
+    public void deletePercentiles (int gameId)
+    {
+        deleteAll(PercentileRecord.class, new Where(PercentileRecord.GAME_ID_C, gameId));
+    }
+
     @Override
     protected void getManagedRecords (Set<Class<? extends PersistentRecord>> classes)
     {