1 files changed, 62 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/notedb/rebuild/HashtagsEvent.java b/java/com/google/gerrit/server/notedb/rebuild/HashtagsEvent.java
new file mode 100644
index 0000000000..4f6f6ad339
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+++ b/java/com/google/gerrit/server/notedb/rebuild/HashtagsEvent.java
@@ -0,0 +1,62 @@
+// 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.notedb.rebuild;
+
+import com.google.common.base.MoreObjects.ToStringHelper;
+import com.google.gerrit.reviewdb.client.Account;
+import com.google.gerrit.reviewdb.client.PatchSet;
+import com.google.gerrit.server.notedb.ChangeUpdate;
+import com.google.gwtorm.server.OrmException;
+import java.sql.Timestamp;
+import java.util.Set;
+
+class HashtagsEvent extends Event {
+  private final Set<String> hashtags;
+
+  HashtagsEvent(
+      PatchSet.Id psId,
+      Account.Id who,
+      Timestamp when,
+      Set<String> hashtags,
+      Timestamp changeCreatdOn) {
+    super(
+        psId,
+        who,
+        who,
+        when,
+        changeCreatdOn,
+        // Somewhat confusingly, hashtags do not use the setTag method on
+        // AbstractChangeUpdate, so pass null as the tag.
+        null);
+    this.hashtags = hashtags;
+  }
+
+  @Override
+  boolean uniquePerUpdate() {
+    // Since these are produced from existing commits in the old NoteDb graph,
+    // we know that there must be one per commit in the rebuilt graph.
+    return true;
+  }
+
+  @Override
+  void apply(ChangeUpdate update) throws OrmException {
+    update.setHashtags(hashtags);
+  }
+
+  @Override
+  protected void addToString(ToStringHelper helper) {
+    helper.add("hashtags", hashtags);
+  }
+}