kafka FinalizedVersionRange 源码
kafka FinalizedVersionRange 代码
文件路径：/clients/src/main/java/org/apache/kafka/clients/admin/FinalizedVersionRange.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.clients.admin;
import java.util.Objects;
/**
* Represents a range of version levels supported by every broker in a cluster for some feature.
*/
public class FinalizedVersionRange {
private final short minVersionLevel;
private final short maxVersionLevel;
/**
* Raises an exception unless the following condition is met:
* minVersionLevel >= 1 and maxVersionLevel >= 1 and maxVersionLevel >= minVersionLevel.
*
* @param minVersionLevel The minimum version level value.
* @param maxVersionLevel The maximum version level value.
*
* @throws IllegalArgumentException Raised when the condition described above is not met.
*/
FinalizedVersionRange(final short minVersionLevel, final short maxVersionLevel) {
if (minVersionLevel < 0 || maxVersionLevel < 0 || maxVersionLevel < minVersionLevel) {
throw new IllegalArgumentException(
String.format(
"Expected minVersionLevel >= 0, maxVersionLevel >= 0 and" +
" maxVersionLevel >= minVersionLevel, but received" +
" minVersionLevel: %d, maxVersionLevel: %d", minVersionLevel, maxVersionLevel));
}
this.minVersionLevel = minVersionLevel;
this.maxVersionLevel = maxVersionLevel;
}
public short minVersionLevel() {
return minVersionLevel;
}
public short maxVersionLevel() {
return maxVersionLevel;
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof FinalizedVersionRange)) {
return false;
}
final FinalizedVersionRange that = (FinalizedVersionRange) other;
return this.minVersionLevel == that.minVersionLevel &&
this.maxVersionLevel == that.maxVersionLevel;
}
@Override
public int hashCode() {
return Objects.hash(minVersionLevel, maxVersionLevel);
}
@Override
public String toString() {
return String.format(
"FinalizedVersionRange[min_version_level:%d, max_version_level:%d]",
minVersionLevel,
maxVersionLevel);
}
}
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