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* 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.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.index.seqno.SequenceNumbersService;
import org.elasticsearch.transport.FutureTransportResponseHandler;
import org.elasticsearch.transport.TransportResponse;
import org.elasticsearch.transport.TransportResponseHandler;
import java.io.IOException;
public class RecoveryTranslogOperationsResponse extends TransportResponse {
long localCheckpoint;
RecoveryTranslogOperationsResponse() {
}
RecoveryTranslogOperationsResponse(final long localCheckpoint) {
this.localCheckpoint = localCheckpoint;
}
@Override
public void writeTo(final StreamOutput out) throws IOException {
// before 6.0.0 we responded with an empty response so we have to maintain that
if (out.getVersion().onOrAfter(Version.V_6_0_0_alpha1_UNRELEASED)) {
out.writeZLong(localCheckpoint);
}
}
@Override
public void readFrom(final StreamInput in) throws IOException {
// before 6.0.0 we received an empty response so we have to maintain that
if (in.getVersion().onOrAfter(Version.V_6_0_0_alpha1_UNRELEASED)) {
localCheckpoint = in.readZLong();
}
else {
localCheckpoint = SequenceNumbersService.UNASSIGNED_SEQ_NO;
}
}
static TransportResponseHandler<RecoveryTranslogOperationsResponse> HANDLER =
new FutureTransportResponseHandler<RecoveryTranslogOperationsResponse>() {
@Override
public RecoveryTranslogOperationsResponse newInstance() {
return new RecoveryTranslogOperationsResponse();
}
};
}