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diff --git a/src/mongo/db/catalog/commit_quorum_options.h b/src/mongo/db/catalog/commit_quorum_options.h
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+/**
+ *    Copyright (C) 2019-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#pragma once
+
+#include <string>
+
+#include "mongo/db/jsobj.h"
+
+namespace mongo {
+
+class Status;
+
+/**
+ * The 'CommitQuorumOptions' has the same range of settings as the 'w' field from
+ * 'WriteConcernOptions'. It can be set to an integer starting from 0 and up, or to a string. The
+ * string option can either be 'majority' or a replica set tag.
+ *
+ * The principal idea behind 'CommitQuorumOptions' is to figure out when an index build should be
+ * committed on the replica set based on the number of commit ready members.
+ */
+class CommitQuorumOptions {
+public:
+    static const StringData kCommitQuorumField;  // = "commitQuorum"
+    static const char kMajority[];               // = "majority"
+
+    static const BSONObj Majority;  // = {"commitQuorum": "majority"}
+
+    CommitQuorumOptions() {
+        reset();
+    }
+
+    explicit CommitQuorumOptions(int numNodesOpts);
+
+    explicit CommitQuorumOptions(const std::string& modeOpts);
+
+    Status parse(const BSONObj& obj);
+
+    /**
+     * Returns an instance of CommitQuorumOptions from a BSONObj.
+     *
+     * uasserts() if the obj cannot be deserialized.
+     */
+    static CommitQuorumOptions deserializerForIDL(const BSONObj& obj);
+
+    void reset() {
+        numNodes = 0;
+        mode = "";
+    }
+
+    // Returns the BSON representation of this object.
+    BSONObj toBSON() const;
+
+    // The 'commitQuorum' parameter to define the required quorum for the index builds to commit.
+    // The 'mode' represents the string format and takes precedence over the number format
+    // 'numNodes'.
+    int numNodes;
+    std::string mode;
+};
+
+}  // namespace mongo