kafka RemoteLogMetadata 源码
kafka RemoteLogMetadata 代码
文件路径：/storage/api/src/main/java/org/apache/kafka/server/log/remote/storage/RemoteLogMetadata.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.server.log.remote.storage;
import org.apache.kafka.common.TopicIdPartition;
import org.apache.kafka.common.annotation.InterfaceStability;
/**
* Base class for remote log metadata objects like {@link RemoteLogSegmentMetadata}, {@link RemoteLogSegmentMetadataUpdate},
* and {@link RemotePartitionDeleteMetadata}.
*/
@InterfaceStability.Evolving
public abstract class RemoteLogMetadata {
/**
* Broker id from which this event is generated.
*/
private final int brokerId;
/**
* Epoch time in milli seconds at which this event is generated.
*/
private final long eventTimestampMs;
protected RemoteLogMetadata(int brokerId, long eventTimestampMs) {
this.brokerId = brokerId;
this.eventTimestampMs = eventTimestampMs;
}
/**
* @return Epoch time in milli seconds at which this event is occurred.
*/
public long eventTimestampMs() {
return eventTimestampMs;
}
/**
* @return Broker id from which this event is generated.
*/
public int brokerId() {
return brokerId;
}
/**
* @return TopicIdPartition for which this event is generated.
*/
public abstract TopicIdPartition topicIdPartition();
}
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