Merge branch 'stable-2.16'

* stable-2.16:
  Remove redundant StandardKeyEncoder reference
  Format build files with buildifier 0.19.2
  E2E integration test using Kafka docker container
  AbstractKafkaSubcriber: Add listener for dropped events
  Removed unused PeerInfoStrategy enum

Change-Id: Icded855cba1d1a0041605b9081712ea1f188726d
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBroker.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBroker.java
index 30b0b33..bbe7301 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBroker.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBroker.java
@@ -14,7 +14,6 @@
 
 package com.googlesource.gerrit.plugins.multisite.forwarder;
 
-import com.google.gerrit.reviewdb.server.ReviewDb;
 import com.google.gerrit.server.events.Event;
 import com.google.gerrit.server.events.EventBroker;
 import com.google.gerrit.server.events.EventListener;
@@ -24,7 +23,6 @@
 import com.google.gerrit.server.plugincontext.PluginSetContext;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.inject.Inject;
-import com.google.inject.Provider;
 
 class ForwardedAwareEventBroker extends EventBroker {
 
@@ -34,15 +32,8 @@
       PluginSetContext<EventListener> unrestrictedListeners,
       PermissionBackend permissionBackend,
       ProjectCache projectCache,
-      Factory notesFactory,
-      Provider<ReviewDb> dbProvider) {
-    super(
-        listeners,
-        unrestrictedListeners,
-        permissionBackend,
-        projectCache,
-        notesFactory,
-        dbProvider);
+      Factory notesFactory) {
+    super(listeners, unrestrictedListeners, permissionBackend, projectCache, notesFactory);
   }
 
   @Override
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandler.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandler.java
index 4b0a142..2d25c51 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandler.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandler.java
@@ -135,7 +135,7 @@
   private void reindex(ChangeNotes notes) throws IOException, OrmException {
     try (ManualRequestContext ctx = oneOffCtx.open()) {
       notes.reload();
-      indexer.index(ctx.getReviewDbProvider().get(), notes.getChange());
+      indexer.index(notes.getChange());
     }
   }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/index/ChangeCheckerImpl.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/index/ChangeCheckerImpl.java
index 29435bc..d96a8b2 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/index/ChangeCheckerImpl.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/index/ChangeCheckerImpl.java
@@ -16,7 +16,6 @@
 
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Comment;
-import com.google.gerrit.reviewdb.server.ReviewDb;
 import com.google.gerrit.server.CommentsUtil;
 import com.google.gerrit.server.change.ChangeFinder;
 import com.google.gerrit.server.git.GitRepositoryManager;
@@ -148,16 +147,14 @@
   }
 
   private Optional<Long> computeLastChangeTs() throws OrmException {
-    try (ReviewDb db = oneOffReqCtx.open().getReviewDbProvider().get()) {
-      return getChangeNotes().map(notes -> getTsFromChangeAndDraftComments(db, notes));
-    }
+    return getChangeNotes().map(notes -> getTsFromChangeAndDraftComments(notes));
   }
 
-  private long getTsFromChangeAndDraftComments(ReviewDb db, ChangeNotes notes) {
+  private long getTsFromChangeAndDraftComments(ChangeNotes notes) {
     Change change = notes.getChange();
     Timestamp changeTs = change.getLastUpdatedOn();
     try {
-      for (Comment comment : commentsUtil.draftByChange(db, changeNotes.get())) {
+      for (Comment comment : commentsUtil.draftByChange(changeNotes.get())) {
         Timestamp commentTs = comment.writtenOn;
         changeTs = commentTs.after(changeTs) ? commentTs : changeTs;
       }
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBrokerTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBrokerTest.java
index 3c42993..a7f3968 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBrokerTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedAwareEventBrokerTest.java
@@ -41,7 +41,7 @@
     DynamicSet<EventListener> set = DynamicSet.emptySet();
     set.add("multi-site", listenerMock);
     PluginSetContext<EventListener> listeners = new PluginSetContext<>(set, mockMetrics);
-    broker = new ForwardedAwareEventBroker(null, listeners, null, null, null, null);
+    broker = new ForwardedAwareEventBroker(null, listeners, null, null, null);
   }
 
   @Test
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandlerTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandlerTest.java
index 2793253..d6c3576 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandlerTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexChangeHandlerTest.java
@@ -26,7 +26,6 @@
 
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
-import com.google.gerrit.reviewdb.server.ReviewDb;
 import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.index.change.ChangeIndexer;
 import com.google.gerrit.server.notedb.ChangeNotes;
@@ -34,7 +33,6 @@
 import com.google.gerrit.server.util.OneOffRequestContext;
 import com.google.gerrit.server.util.time.TimeUtil;
 import com.google.gwtorm.server.OrmException;
-import com.google.inject.util.Providers;
 import com.googlesource.gerrit.plugins.multisite.Configuration;
 import com.googlesource.gerrit.plugins.multisite.forwarder.ForwardedIndexingHandler.Operation;
 import com.googlesource.gerrit.plugins.multisite.forwarder.events.ChangeIndexEvent;
@@ -61,9 +59,7 @@
   private static final boolean CHANGE_EXISTS = true;
   private static final boolean CHANGE_DOES_NOT_EXIST = false;
   private static final boolean DO_NOT_THROW_IO_EXCEPTION = false;
-  private static final boolean DO_NOT_THROW_ORM_EXCEPTION = false;
   private static final boolean THROW_IO_EXCEPTION = true;
-  private static final boolean THROW_ORM_EXCEPTION = true;
   private static final boolean CHANGE_UP_TO_DATE = true;
   private static final boolean CHANGE_OUTDATED = false;
 
@@ -71,7 +67,6 @@
   @Mock private ChangeIndexer indexerMock;
   @Mock private OneOffRequestContext ctxMock;
   @Mock private ManualRequestContext manualRequestContextMock;
-  @Mock private ReviewDb dbMock;
   @Mock private ChangeNotes changeNotes;
   @Mock private Configuration configurationMock;
   @Mock private Configuration.Index index;
@@ -87,7 +82,6 @@
   @Before
   public void setUp() throws Exception {
     when(ctxMock.open()).thenReturn(manualRequestContextMock);
-    when(manualRequestContextMock.getReviewDbProvider()).thenReturn(Providers.of(dbMock));
     id = new Change.Id(TEST_CHANGE_NUMBER);
     change = new Change(null, id, null, null, TimeUtil.nowTs());
     when(changeNotes.getChange()).thenReturn(change);
@@ -103,7 +97,7 @@
   public void changeIsIndexedWhenUpToDate() throws Exception {
     setupChangeAccessRelatedMocks(CHANGE_EXISTS, CHANGE_UP_TO_DATE);
     handler.index(TEST_CHANGE_ID, Operation.INDEX, Optional.empty());
-    verify(indexerMock, times(1)).index(any(ReviewDb.class), any(Change.class));
+    verify(indexerMock, times(1)).index(any(Change.class));
   }
 
   @Test
@@ -111,7 +105,7 @@
     setupChangeAccessRelatedMocks(CHANGE_EXISTS, CHANGE_OUTDATED);
     handler.index(
         TEST_CHANGE_ID, Operation.INDEX, Optional.of(new ChangeIndexEvent("foo", 1, false)));
-    verify(indexerMock, times(1)).index(any(ReviewDb.class), any(Change.class));
+    verify(indexerMock, times(1)).index(any(Change.class));
   }
 
   @Test
@@ -125,21 +119,12 @@
     setupChangeAccessRelatedMocks(CHANGE_DOES_NOT_EXIST, CHANGE_OUTDATED);
     handler.index(TEST_CHANGE_ID, Operation.INDEX, Optional.empty());
     verify(indexerMock, never()).delete(id);
-    verify(indexerMock, never())
-        .index(any(ReviewDb.class), any(Project.NameKey.class), any(Change.Id.class));
-  }
-
-  @Test
-  public void schemaThrowsExceptionWhenLookingUpForChange() throws Exception {
-    setupChangeAccessRelatedMocks(CHANGE_EXISTS, THROW_ORM_EXCEPTION, CHANGE_UP_TO_DATE);
-    exception.expect(OrmException.class);
-    handler.index(TEST_CHANGE_ID, Operation.INDEX, Optional.empty());
+    verify(indexerMock, never()).index(any(Project.NameKey.class), any(Change.Id.class));
   }
 
   @Test
   public void indexerThrowsIOExceptionTryingToIndexChange() throws Exception {
-    setupChangeAccessRelatedMocks(
-        CHANGE_EXISTS, DO_NOT_THROW_ORM_EXCEPTION, THROW_IO_EXCEPTION, CHANGE_UP_TO_DATE);
+    setupChangeAccessRelatedMocks(CHANGE_EXISTS, THROW_IO_EXCEPTION, CHANGE_UP_TO_DATE);
     exception.expect(IOException.class);
     handler.index(TEST_CHANGE_ID, Operation.INDEX, Optional.empty());
   }
@@ -156,13 +141,13 @@
                   return null;
                 })
         .when(indexerMock)
-        .index(any(ReviewDb.class), any(Change.class));
+        .index(any(Change.class));
 
     assertThat(Context.isForwardedEvent()).isFalse();
     handler.index(TEST_CHANGE_ID, Operation.INDEX, Optional.empty());
     assertThat(Context.isForwardedEvent()).isFalse();
 
-    verify(indexerMock, times(1)).index(any(ReviewDb.class), any(Change.class));
+    verify(indexerMock, times(1)).index(any(Change.class));
   }
 
   @Test
@@ -175,7 +160,7 @@
                   throw new IOException("someMessage");
                 })
         .when(indexerMock)
-        .index(any(ReviewDb.class), any(Change.class));
+        .index(any(Change.class));
 
     assertThat(Context.isForwardedEvent()).isFalse();
     try {
@@ -186,36 +171,22 @@
     }
     assertThat(Context.isForwardedEvent()).isFalse();
 
-    verify(indexerMock, times(1)).index(any(ReviewDb.class), any(Change.class));
+    verify(indexerMock, times(1)).index(any(Change.class));
   }
 
   private void setupChangeAccessRelatedMocks(boolean changeExist, boolean changeUpToDate)
       throws Exception {
-    setupChangeAccessRelatedMocks(
-        changeExist, DO_NOT_THROW_ORM_EXCEPTION, DO_NOT_THROW_IO_EXCEPTION, changeUpToDate);
+    setupChangeAccessRelatedMocks(changeExist, DO_NOT_THROW_IO_EXCEPTION, changeUpToDate);
   }
 
   private void setupChangeAccessRelatedMocks(
-      boolean changeExist, boolean ormException, boolean changeUpToDate)
-      throws OrmException, IOException {
-    setupChangeAccessRelatedMocks(
-        changeExist, ormException, DO_NOT_THROW_IO_EXCEPTION, changeUpToDate);
-  }
-
-  private void setupChangeAccessRelatedMocks(
-      boolean changeExists, boolean ormException, boolean ioException, boolean changeIsUpToDate)
-      throws OrmException, IOException {
-    if (ormException) {
-      doThrow(new OrmException("")).when(ctxMock).open();
-    }
-
+      boolean changeExists, boolean ioException, boolean changeIsUpToDate)
+      throws IOException, OrmException {
     if (changeExists) {
       when(changeCheckerFactoryMock.create(TEST_CHANGE_ID)).thenReturn(changeCheckerPresentMock);
       when(changeCheckerPresentMock.getChangeNotes()).thenReturn(Optional.of(changeNotes));
       if (ioException) {
-        doThrow(new IOException("io-error"))
-            .when(indexerMock)
-            .index(any(ReviewDb.class), any(Change.class));
+        doThrow(new IOException("io-error")).when(indexerMock).index(any(Change.class));
       }
     }