org.apache.kafka.metadata.placement.PartitionAssignment Maven / Gradle / Ivy
/*
* 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 java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
/**
* The partition assignment.
*
* The assignment is represented as a list of integers where each integer is the replica ID. This class is immutable.
* It's internal state does not change.
*/
public class PartitionAssignment {
private final List replicas;
public PartitionAssignment(List replicas) {
this.replicas = Collections.unmodifiableList(new ArrayList<>(replicas));
}
/**
* @return The partition assignment that consists of a list of replica IDs.
*/
public List replicas() {
return replicas;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof PartitionAssignment)) return false;
PartitionAssignment other = (PartitionAssignment) o;
return replicas.equals(other.replicas);
}
@Override
public int hashCode() {
return Objects.hash(replicas);
}
@Override
public String toString() {
return "PartitionAssignment" +
"(replicas=" + replicas +
")";
}
}