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// Copyright Yahoo. 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.ApplicationId;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.zone.ZoneId;
import com.yahoo.vespa.hosted.controller.api.integration.configserver.Node;
import java.time.Instant;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
/**
* Represents the resources allocated to a deployment at a specific point in time.
*
* @author olaa
*/
public class ResourceSnapshot {
private final ApplicationId applicationId;
private final ResourceAllocation resourceAllocation;
private final Instant timestamp;
private final ZoneId zoneId;
public ResourceSnapshot(ApplicationId applicationId, double cpuCores, double memoryGb, double diskGb, NodeResources.Architecture architecture, Instant timestamp, ZoneId zoneId) {
this.applicationId = applicationId;
this.resourceAllocation = new ResourceAllocation(cpuCores, memoryGb, diskGb, architecture);
this.timestamp = timestamp;
this.zoneId = zoneId;
}
public static ResourceSnapshot from(ApplicationId applicationId, int nodes, double cpuCores, double memoryGb, double diskGb, NodeResources.Architecture architecture, Instant timestamp, ZoneId zoneId) {
return new ResourceSnapshot(applicationId, cpuCores * nodes, memoryGb * nodes, diskGb * nodes, architecture, timestamp, zoneId);
}
public static ResourceSnapshot from(List<Node> nodes, Instant timestamp, ZoneId zoneId) {
Set<ApplicationId> applicationIds = nodes.stream()
.filter(node -> node.owner().isPresent())
.map(node -> node.owner().get())
.collect(Collectors.toSet());
if (applicationIds.size() != 1) throw new IllegalArgumentException("List of nodes can only represent one application");
return new ResourceSnapshot(
applicationIds.iterator().next(),
nodes.stream().map(Node::resources).mapToDouble(NodeResources::vcpu).sum(),
nodes.stream().map(Node::resources).mapToDouble(NodeResources::memoryGb).sum(),
nodes.stream().map(Node::resources).mapToDouble(NodeResources::diskGb).sum(),
nodes.stream().map(node -> node.resources().architecture()).findFirst().orElse(NodeResources.Architecture.getDefault()),
timestamp,
zoneId
);
}
public ApplicationId getApplicationId() {
return applicationId;
}
public ResourceAllocation allocation() {
return resourceAllocation;
}
public double getCpuCores() {
return resourceAllocation.getCpuCores();
}
public double getMemoryGb() {
return resourceAllocation.getMemoryGb();
}
public double getDiskGb() {
return resourceAllocation.getDiskGb();
}
public Instant getTimestamp() {
return timestamp;
}
public ZoneId getZoneId() {
return zoneId;
}
public NodeResources.Architecture getArchitecture() {
return resourceAllocation.getArchitecture();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof ResourceSnapshot)) return false;
ResourceSnapshot other = (ResourceSnapshot) o;
return this.applicationId.equals(other.applicationId) &&
this.resourceAllocation.equals(other.resourceAllocation) &&
this.timestamp.equals(other.timestamp) &&
this.zoneId.equals(other.zoneId);
}
@Override
public int hashCode(){
return Objects.hash(applicationId, resourceAllocation, timestamp, zoneId);
}
}
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