kafka ProducerIdsDelta 源码
kafka ProducerIdsDelta 代码
文件路径：/metadata/src/main/java/org/apache/kafka/image/ProducerIdsDelta.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.kafka.image;
import org.apache.kafka.common.metadata.ProducerIdsRecord;
import org.apache.kafka.server.common.MetadataVersion;
public final class ProducerIdsDelta {
private long nextProducerId;
public ProducerIdsDelta(ProducerIdsImage image) {
this.nextProducerId = image.highestSeenProducerId();
}
public void setNextProducerId(long highestSeenProducerId) {
this.nextProducerId = highestSeenProducerId;
}
public long nextProducerId() {
return nextProducerId;
}
public void finishSnapshot() {
// Nothing to do
}
public void handleMetadataVersionChange(MetadataVersion newVersion) {
// no-op
}
public void replay(ProducerIdsRecord record) {
nextProducerId = record.nextProducerId();
}
public ProducerIdsImage apply() {
return new ProducerIdsImage(nextProducerId);
}
@Override
public String toString() {
return "ProducerIdsDelta(nextProducerId=" + nextProducerId + ")";
}
}
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