kafka RecordConversionStats 源码
kafka RecordConversionStats 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/record/RecordConversionStats.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.record;
public class RecordConversionStats {
public static final RecordConversionStats EMPTY = new RecordConversionStats();
private long temporaryMemoryBytes;
private int numRecordsConverted;
private long conversionTimeNanos;
public RecordConversionStats(long temporaryMemoryBytes, int numRecordsConverted, long conversionTimeNanos) {
this.temporaryMemoryBytes = temporaryMemoryBytes;
this.numRecordsConverted = numRecordsConverted;
this.conversionTimeNanos = conversionTimeNanos;
}
public RecordConversionStats() {
this(0, 0, 0);
}
public void add(RecordConversionStats stats) {
temporaryMemoryBytes += stats.temporaryMemoryBytes;
numRecordsConverted += stats.numRecordsConverted;
conversionTimeNanos += stats.conversionTimeNanos;
}
/**
* Returns the number of temporary memory bytes allocated to process the records.
* This size depends on whether the records need decompression and/or conversion:
* <ul>
* <li>Non compressed, no conversion: zero</li>
* <li>Non compressed, with conversion: size of the converted buffer</li>
* <li>Compressed, no conversion: size of the original buffer after decompression</li>
* <li>Compressed, with conversion: size of the original buffer after decompression + size of the converted buffer uncompressed</li>
* </ul>
*/
public long temporaryMemoryBytes() {
return temporaryMemoryBytes;
}
public int numRecordsConverted() {
return numRecordsConverted;
}
public long conversionTimeNanos() {
return conversionTimeNanos;
}
@Override
public String toString() {
return String.format("RecordConversionStats(temporaryMemoryBytes=%d, numRecordsConverted=%d, conversionTimeNanos=%d)",
temporaryMemoryBytes, numRecordsConverted, conversionTimeNanos);
}
}
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