kafka PlacementSpec 源码
kafka PlacementSpec 代码
文件路径:/metadata/src/main/java/org/apache/kafka/metadata/placement/PlacementSpec.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.metadata.placement;
import org.apache.kafka.common.annotation.InterfaceStability;
import java.util.Objects;
/**
* Specifies a replica placement that we want to make.
*/
@InterfaceStability.Unstable
public class PlacementSpec {
private final int startPartition;
private final int numPartitions;
private final short numReplicas;
public PlacementSpec(
int startPartition,
int numPartitions,
short numReplicas
) {
this.startPartition = startPartition;
this.numPartitions = numPartitions;
this.numReplicas = numReplicas;
}
public int startPartition() {
return startPartition;
}
public int numPartitions() {
return numPartitions;
}
public short numReplicas() {
return numReplicas;
}
@Override
public boolean equals(Object o) {
if (o == null) return false;
if (!(o.getClass().equals(this.getClass()))) return false;
PlacementSpec other = (PlacementSpec) o;
return startPartition == other.startPartition &&
numPartitions == other.numPartitions &&
numReplicas == other.numReplicas;
}
@Override
public int hashCode() {
return Objects.hash(startPartition,
numPartitions,
numReplicas);
}
@Override
public String toString() {
return "PlacementSpec" +
"(startPartition=" + startPartition +
", numPartitions=" + numPartitions +
", numReplicas=" + numReplicas +
")";
}
}
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