kafka RemotePartitionMetadataEventHandler 源码
kafka RemotePartitionMetadataEventHandler 代码
文件路径：/storage/src/main/java/org/apache/kafka/server/log/remote/metadata/storage/RemotePartitionMetadataEventHandler.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
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*/
package org.apache.kafka.server.log.remote.metadata.storage;
import org.apache.kafka.common.TopicIdPartition;
import org.apache.kafka.server.log.remote.storage.RemoteLogMetadata;
import org.apache.kafka.server.log.remote.storage.RemoteLogSegmentMetadata;
import org.apache.kafka.server.log.remote.storage.RemoteLogSegmentMetadataUpdate;
import org.apache.kafka.server.log.remote.storage.RemotePartitionDeleteMetadata;
import java.io.IOException;
public abstract class RemotePartitionMetadataEventHandler {
public void handleRemoteLogMetadata(RemoteLogMetadata remoteLogMetadata) {
if (remoteLogMetadata instanceof RemoteLogSegmentMetadata) {
handleRemoteLogSegmentMetadata((RemoteLogSegmentMetadata) remoteLogMetadata);
} else if (remoteLogMetadata instanceof RemoteLogSegmentMetadataUpdate) {
handleRemoteLogSegmentMetadataUpdate((RemoteLogSegmentMetadataUpdate) remoteLogMetadata);
} else if (remoteLogMetadata instanceof RemotePartitionDeleteMetadata) {
handleRemotePartitionDeleteMetadata((RemotePartitionDeleteMetadata) remoteLogMetadata);
} else {
throw new IllegalArgumentException("remoteLogMetadata: " + remoteLogMetadata + " is not supported.");
}
}
protected abstract void handleRemoteLogSegmentMetadata(RemoteLogSegmentMetadata remoteLogSegmentMetadata);
protected abstract void handleRemoteLogSegmentMetadataUpdate(RemoteLogSegmentMetadataUpdate remoteLogSegmentMetadataUpdate);
protected abstract void handleRemotePartitionDeleteMetadata(RemotePartitionDeleteMetadata remotePartitionDeleteMetadata);
public abstract void syncLogMetadataSnapshot(TopicIdPartition topicIdPartition,
int metadataPartition,
Long metadataPartitionOffset) throws IOException;
public abstract void clearTopicPartition(TopicIdPartition topicIdPartition);
}
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