Move exclusion strategy to its own file

src/main/java/net/frozenorb/apiv3/APIv3.java

@@ -11,6 +11,7 @@ import com.mongodb.ServerAddress;
 import lombok.Getter;
 import net.frozenorb.apiv3.model.*;
 import net.frozenorb.apiv3.weirdStuff.ExcludeFromReplies;
+import net.frozenorb.apiv3.weirdStuff.FollowAnnotationExclusionStrategy;
 import net.frozenorb.apiv3.weirdStuff.ObjectIdTypeAdapter;
 import org.bson.types.ObjectId;
 import org.mongodb.morphia.Datastore;
@@ -23,19 +24,7 @@ import static spark.Spark.*;
 public final class APIv3 {
 
     @Getter private static Datastore datastore;
-    private final Gson gson = new GsonBuilder().registerTypeAdapter(ObjectId.class, new ObjectIdTypeAdapter()).setExclusionStrategies(new ExclusionStrategy() {
+    private final Gson gson = new GsonBuilder().registerTypeAdapter(ObjectId.class, new ObjectIdTypeAdapter()).setExclusionStrategies(new FollowAnnotationExclusionStrategy()).create();
-
-        @Override
-        public boolean shouldSkipField(FieldAttributes fieldAttributes) {
-            return fieldAttributes.getAnnotation(ExcludeFromReplies.class) != null;
-        }
-
-        @Override
-        public boolean shouldSkipClass(Class<?> aClass) {
-            return false;
-        }
-
-    }).create();
 
     APIv3() {
         setupDatabase();

src/main/java/net/frozenorb/apiv3/weirdStuff/FollowAnnotationExclusionStrategy.java

@@ -0,0 +1,18 @@
+package net.frozenorb.apiv3.weirdStuff;
+
+import com.google.gson.ExclusionStrategy;
+import com.google.gson.FieldAttributes;
+
+public final class FollowAnnotationExclusionStrategy implements ExclusionStrategy {
+
+    @Override
+    public boolean shouldSkipField(FieldAttributes fieldAttributes) {
+        return fieldAttributes.getAnnotation(ExcludeFromReplies.class) != null;
+    }
+
+    @Override
+    public boolean shouldSkipClass(Class<?> aClass) {
+        return false;
+    }
+
+}