kafka RecordListWriter 源码
kafka RecordListWriter 代码
文件路径：/metadata/src/main/java/org/apache/kafka/image/writer/RecordListWriter.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.writer;
import org.apache.kafka.server.common.ApiMessageAndVersion;
import java.util.ArrayList;
import java.util.List;
/**
* Writes a metadata image to a list of records.
*/
public class RecordListWriter implements ImageWriter {
private final List<ApiMessageAndVersion> records = new ArrayList<>();
private boolean closed = false;
@Override
public void write(ApiMessageAndVersion record) {
if (closed) throw new ImageWriterClosedException();
records.add(record);
}
public List<ApiMessageAndVersion> records() {
return records;
}
@Override
public void close(boolean complete) {
if (closed) return;
closed = true;
if (!complete) {
records.clear();
}
}
}
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