kafka ProducerIdAndEpoch 源码
kafka ProducerIdAndEpoch 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/utils/ProducerIdAndEpoch.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.common.utils;
import org.apache.kafka.common.record.RecordBatch;
public class ProducerIdAndEpoch {
public static final ProducerIdAndEpoch NONE = new ProducerIdAndEpoch(RecordBatch.NO_PRODUCER_ID, RecordBatch.NO_PRODUCER_EPOCH);
public final long producerId;
public final short epoch;
public ProducerIdAndEpoch(long producerId, short epoch) {
this.producerId = producerId;
this.epoch = epoch;
}
public boolean isValid() {
return RecordBatch.NO_PRODUCER_ID < producerId;
}
@Override
public String toString() {
return "ProducerIdAndEpoch(producerId=" + producerId + ", epoch=" + epoch + ")";
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ProducerIdAndEpoch that = (ProducerIdAndEpoch) o;
if (producerId != that.producerId) return false;
return epoch == that.epoch;
}
@Override
public int hashCode() {
int result = (int) (producerId ^ (producerId >>> 32));
result = 31 * result + (int) epoch;
return result;
}
}
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