1 files changed, 0 insertions, 73 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/schema/NotesMigrationSchemaFactory.java b/gerrit-server/src/main/java/com/google/gerrit/server/schema/NotesMigrationSchemaFactory.java
deleted file mode 100644
index d73a5f4461..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/server/schema/NotesMigrationSchemaFactory.java
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (C) 2016 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package com.google.gerrit.server.schema;
-
-import com.google.gerrit.reviewdb.server.DisallowReadFromChangesReviewDbWrapper;
-import com.google.gerrit.reviewdb.server.ReviewDb;
-import com.google.gerrit.server.notedb.NotesMigration;
-import com.google.gwtorm.server.OrmException;
-import com.google.gwtorm.server.SchemaFactory;
-import com.google.inject.Inject;
-import com.google.inject.Singleton;
-
-@Singleton
-public class NotesMigrationSchemaFactory implements SchemaFactory<ReviewDb> {
-  private final SchemaFactory<ReviewDb> delegate;
-  private final NotesMigration migration;
-
-  @Inject
-  NotesMigrationSchemaFactory(
-      @ReviewDbFactory SchemaFactory<ReviewDb> delegate, NotesMigration migration) {
-    this.delegate = delegate;
-    this.migration = migration;
-  }
-
-  @Override
-  public ReviewDb open() throws OrmException {
-    ReviewDb db = delegate.open();
-    if (!migration.readChanges()) {
-      return db;
-    }
-
-    // There are two levels at which this class disables access to Changes and related tables,
-    // corresponding to two phases of the NoteDb migration:
-    //
-    // 1. When changes are read from NoteDb but some changes might still have their primary storage
-    //    in ReviewDb, it is generally programmer error to read changes from ReviewDb. However,
-    //    since ReviewDb is still the primary storage for most or all changes, we still need to
-    //    support writing to ReviewDb. This behavior is accomplished by wrapping in a
-    //    DisallowReadFromChangesReviewDbWrapper.
-    //
-    //    Some codepaths might need to be able to read from ReviewDb if they really need to, because
-    //    they need to operate on the underlying source of truth, for example when reading a change
-    //    to determine its primary storage. To support this, ReviewDbUtil#unwrapDb can detect and
-    //    unwrap databases of this type.
-    //
-    // 2. After all changes have their primary storage in NoteDb, we can completely shut off access
-    //    to the change tables. At this point in the migration, we are by definition not using the
-    //    ReviewDb tables at all; we could even delete the tables at this point, and Gerrit would
-    //    continue to function.
-    //
-    //    This is accomplished by setting the delegate ReviewDb *underneath* DisallowReadFromChanges
-    //    to be a complete no-op, with NoChangesReviewDbWrapper. With this wrapper, all read
-    //    operations return no results, and write operations silently do nothing. This wrapper is
-    //    not a public class and nobody should ever attempt to unwrap it.
-
-    if (migration.disableChangeReviewDb()) {
-      db = new NoChangesReviewDbWrapper(db);
-    }
-    return new DisallowReadFromChangesReviewDbWrapper(db);
-  }
-}