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Elasticsearch subproject :server
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.cluster.routing.allocation;
import org.elasticsearch.cluster.routing.allocation.decider.Decision;
import java.util.Objects;
/**
* This class represents the shard allocation decision for a single node,
* including the {@link Decision} whether to allocate to the node and other
* information related to obtaining the decision for the node.
*/
public final class NodeAllocationResult {
private final Decision decision;
private final float weight;
public NodeAllocationResult(Decision decision) {
this.decision = Objects.requireNonNull(decision);
this.weight = Float.POSITIVE_INFINITY;
}
public NodeAllocationResult(Decision decision, float weight) {
this.decision = Objects.requireNonNull(decision);
this.weight = Objects.requireNonNull(weight);
}
/**
* The decision for allocating to the node.
*/
public Decision getDecision() {
return decision;
}
/**
* The calculated weight for allocating a shard to the node. A value of {@link Float#POSITIVE_INFINITY}
* means the weight was not calculated or factored into the decision.
*/
public float getWeight() {
return weight;
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (other == null || getClass() != other.getClass()) {
return false;
}
NodeAllocationResult that = (NodeAllocationResult) other;
return decision.equals(that.decision) && Float.compare(weight, that.weight) == 0;
}
@Override
public int hashCode() {
return Objects.hash(decision, weight);
}
}