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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.provision;
import java.util.Objects;
/**
* The node capacity specified by an application, which is matched to an actual flavor during provisioning.
*
* @author bratseth
*/
public class FlavorSpec {
private final double cpuCores;
private final double memoryGb;
private final double diskGb;
private final boolean allocateByLegacyName;
private final String legacyFlavorName;
public FlavorSpec(double cpuCores, double memoryGb, double diskGb) {
this.cpuCores = cpuCores;
this.memoryGb = memoryGb;
this.diskGb = diskGb;
this.allocateByLegacyName = false;
this.legacyFlavorName = null;
}
private FlavorSpec(double cpuCores, double memoryGb, double diskGb, boolean allocateByLegacyName, String legacyFlavorName) {
this.cpuCores = cpuCores;
this.memoryGb = memoryGb;
this.diskGb = diskGb;
this.allocateByLegacyName = allocateByLegacyName;
this.legacyFlavorName = legacyFlavorName;
}
public double cpuCores() { return cpuCores; }
public double memoryGb() { return memoryGb; }
public double diskGb() { return diskGb; }
/**
* If this is true, a non-docker legacy name was used to specify this and we'll respect that by mapping directly.
* The other getters of this will return 0.
*/
public boolean allocateByLegacyName() { return allocateByLegacyName; }
/** Returns the legacy flavor string of this. This is never null. */
public String legacyFlavorName() {
if (legacyFlavorName != null)
return legacyFlavorName;
else
return "d-" + (int)Math.ceil(cpuCores) + "-" + (int)Math.ceil(memoryGb) + "-" + (int)Math.ceil(diskGb);
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if ( ! (o instanceof FlavorSpec)) return false;
FlavorSpec other = (FlavorSpec)o;
if (allocateByLegacyName) {
return this.legacyFlavorName.equals(other.legacyFlavorName);
}
else {
if (this.cpuCores != other.cpuCores) return false;
if (this.memoryGb != other.memoryGb) return false;
if (this.diskGb != other.diskGb) return false;
return true;
}
}
@Override
public int hashCode() {
if (allocateByLegacyName)
return legacyFlavorName.hashCode();
else
return (int)(2503 * cpuCores + 22123 * memoryGb + 26987 * diskGb);
}
@Override
public String toString() {
if (allocateByLegacyName)
return "flavor '" + legacyFlavorName + "'";
else
return "cpu cores: " + cpuCores + ", memory: " + memoryGb + " Gb, disk " + diskGb + " Gb";
}
/**
* Create this from a legacy flavor string.
*
* @throws IllegalArgumentException if the given string does not map to a legacy flavor
*/
public static FlavorSpec fromLegacyFlavorName(String flavorString) {
if (flavorString.startsWith("d-")) { // A docker flavor
String[] parts = flavorString.split("-");
double cpu = Integer.parseInt(parts[1]);
double mem = Integer.parseInt(parts[2]);
double dsk = Integer.parseInt(parts[3]);
if (cpu == 0) cpu = 0.5;
if (cpu == 2 && mem == 8 ) cpu = 1.5;
if (cpu == 2 && mem == 12 ) cpu = 2.3;
return new FlavorSpec(cpu, mem, dsk, false, flavorString);
}
else {
return new FlavorSpec(0, 0, 0, true, flavorString);
}
}
}
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