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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.api.integration.resource;
import com.yahoo.config.provision.NodeResources;
import java.util.Objects;
/**
* An allocation of node resources.
*
* @author ldalves
*/
public class ResourceAllocation {
public static final ResourceAllocation ZERO = new ResourceAllocation(0, 0, 0, NodeResources.Architecture.getDefault());
private final double cpuCores;
private final double memoryGb;
private final double diskGb;
private final NodeResources.Architecture architecture;
public ResourceAllocation(double cpuCores, double memoryGb, double diskGb, NodeResources.Architecture architecture) {
this.cpuCores = cpuCores;
this.memoryGb = memoryGb;
this.diskGb = diskGb;
this.architecture = architecture;
}
public double usageFraction(ResourceAllocation total) {
return (cpuCores / total.cpuCores + memoryGb / total.memoryGb + diskGb / total.diskGb) / 3;
}
public double getCpuCores() {
return cpuCores;
}
public double getMemoryGb() {
return memoryGb;
}
public double getDiskGb() {
return diskGb;
}
public NodeResources.Architecture getArchitecture() {
return architecture;
}
/** Returns a copy of this with the given allocation added */
public ResourceAllocation plus(ResourceAllocation allocation) {
return new ResourceAllocation(cpuCores + allocation.cpuCores, memoryGb + allocation.memoryGb, diskGb + allocation.diskGb, architecture);
}
/** Returns a copy of this with each resource multiplied by given factor */
public ResourceAllocation multiply(double multiplicand) {
return new ResourceAllocation(cpuCores * multiplicand, memoryGb * multiplicand, diskGb * multiplicand, architecture);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof ResourceAllocation)) return false;
ResourceAllocation other = (ResourceAllocation) o;
return Double.compare(this.cpuCores, other.cpuCores) == 0 &&
Double.compare(this.memoryGb, other.memoryGb) == 0 &&
Double.compare(this.diskGb, other.diskGb) == 0;
}
@Override
public int hashCode() {
return Objects.hash(cpuCores, memoryGb, diskGb);
}
}
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