kafka PartitionReassignment 源码
kafka PartitionReassignment 代码
文件路径：/clients/src/main/java/org/apache/kafka/clients/admin/PartitionReassignment.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.Collections;
import java.util.List;
/**
* A partition reassignment, which has been listed via {@link AdminClient#listPartitionReassignments()}.
*/
public class PartitionReassignment {
private final List<Integer> replicas;
private final List<Integer> addingReplicas;
private final List<Integer> removingReplicas;
public PartitionReassignment(List<Integer> replicas, List<Integer> addingReplicas, List<Integer> removingReplicas) {
this.replicas = Collections.unmodifiableList(replicas);
this.addingReplicas = Collections.unmodifiableList(addingReplicas);
this.removingReplicas = Collections.unmodifiableList(removingReplicas);
}
/**
* The brokers which this partition currently resides on.
*/
public List<Integer> replicas() {
return replicas;
}
/**
* The brokers that we are adding this partition to as part of a reassignment.
* A subset of replicas.
*/
public List<Integer> addingReplicas() {
return addingReplicas;
}
/**
* The brokers that we are removing this partition from as part of a reassignment.
* A subset of replicas.
*/
public List<Integer> removingReplicas() {
return removingReplicas;
}
@Override
public String toString() {
return "PartitionReassignment(" +
"replicas=" + replicas +
", addingReplicas=" + addingReplicas +
", removingReplicas=" + removingReplicas +
')';
}
}
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