/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.indices.recovery;

import org.elasticsearch.Version;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.transport.TransportRequest;

import java.io.IOException;

class RecoveryPrepareForTranslogOperationsRequest extends TransportRequest {

    private final long recoveryId;
    private final ShardId shardId;
    private final int totalTranslogOps;
    private final boolean createNewTranslog;

    RecoveryPrepareForTranslogOperationsRequest(long recoveryId, ShardId shardId, int totalTranslogOps, boolean createNewTranslog) {
        this.recoveryId = recoveryId;
        this.shardId = shardId;
        this.totalTranslogOps = totalTranslogOps;
        this.createNewTranslog = createNewTranslog;
    }

    RecoveryPrepareForTranslogOperationsRequest(StreamInput in) throws IOException {
        super.readFrom(in);
        recoveryId = in.readLong();
        shardId = ShardId.readShardId(in);
        totalTranslogOps = in.readVInt();
        if (in.getVersion().before(Version.V_6_0_0_alpha1)) {
            in.readLong(); // maxUnsafeAutoIdTimestamp
        }
        if (in.getVersion().onOrAfter(Version.V_6_2_0)) {
            createNewTranslog = in.readBoolean();
        } else {
            createNewTranslog = true;
        }
    }

    public long recoveryId() {
        return this.recoveryId;
    }

    public ShardId shardId() {
        return shardId;
    }

    public int totalTranslogOps() {
        return totalTranslogOps;
    }

    /**
     * Whether or not the recover target should create a new local translog
     */
    boolean createNewTranslog() {
        return createNewTranslog;
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        out.writeLong(recoveryId);
        shardId.writeTo(out);
        out.writeVInt(totalTranslogOps);
        if (out.getVersion().before(Version.V_6_2_0)) {
            out.writeLong(IndexRequest.UNSET_AUTO_GENERATED_TIMESTAMP); // maxUnsafeAutoIdTimestamp
        }
        if (out.getVersion().onOrAfter(Version.V_7_0_0_alpha1)) {
            out.writeBoolean(createNewTranslog);
        }
    }
}

@@ -2867,35 +2867,42 @@
 ore(Version.V_6_
-2
+0
 _0
+_alpha1
 )) %7B%0A           
@@ -3053,20 +3053,13 @@
 n.V_
-7_0_0_alpha1
+6_2_0
 )) %7B

Correct backport replica rollback to 6.2 (#28181)