kafka PartialDefaultRecord 源码
kafka PartialDefaultRecord 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/record/PartialDefaultRecord.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;
import org.apache.kafka.common.header.Header;
import java.nio.ByteBuffer;
public class PartialDefaultRecord extends DefaultRecord {
private final int keySize;
private final int valueSize;
PartialDefaultRecord(int sizeInBytes,
byte attributes,
long offset,
long timestamp,
int sequence,
int keySize,
int valueSize) {
super(sizeInBytes, attributes, offset, timestamp, sequence, null, null, null);
this.keySize = keySize;
this.valueSize = valueSize;
}
@Override
public boolean equals(Object o) {
return super.equals(o) &&
this.keySize == ((PartialDefaultRecord) o).keySize &&
this.valueSize == ((PartialDefaultRecord) o).valueSize;
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + keySize;
result = 31 * result + valueSize;
return result;
}
@Override
public String toString() {
return String.format("PartialDefaultRecord(offset=%d, timestamp=%d, key=%d bytes, value=%d bytes)",
offset(),
timestamp(),
keySize,
valueSize);
}
@Override
public int keySize() {
return keySize;
}
@Override
public boolean hasKey() {
return keySize >= 0;
}
@Override
public ByteBuffer key() {
throw new UnsupportedOperationException("key is skipped in PartialDefaultRecord");
}
@Override
public int valueSize() {
return valueSize;
}
@Override
public boolean hasValue() {
return valueSize >= 0;
}
@Override
public ByteBuffer value() {
throw new UnsupportedOperationException("value is skipped in PartialDefaultRecord");
}
@Override
public Header[] headers() {
throw new UnsupportedOperationException("headers is skipped in PartialDefaultRecord");
}
}
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