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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.provision.restapi;
import com.yahoo.config.provision.IntRange;
import com.yahoo.config.provision.ClusterResources;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Slime;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import com.yahoo.vespa.hosted.provision.applications.Application;
import com.yahoo.vespa.hosted.provision.applications.Cluster;
import com.yahoo.vespa.hosted.provision.applications.ScalingEvent;
import com.yahoo.vespa.hosted.provision.autoscale.Autoscaling;
import com.yahoo.vespa.hosted.provision.autoscale.Limits;
import com.yahoo.vespa.hosted.provision.autoscale.Load;
import java.net.URI;
import java.util.List;
/**
* Serializes application information for nodes/v2/application responses
*
* @author bratseth
*/
public class ApplicationSerializer {
public static Slime toSlime(Application application,
NodeList applicationNodes,
NodeRepository nodeRepository,
URI applicationUri) {
Slime slime = new Slime();
toSlime(application, applicationNodes, nodeRepository, slime.setObject(), applicationUri);
return slime;
}
private static void toSlime(Application application,
NodeList applicationNodes,
NodeRepository nodeRepository,
Cursor object,
URI applicationUri) {
object.setString("url", applicationUri.toString());
object.setString("id", application.id().toFullString());
clustersToSlime(application, applicationNodes, nodeRepository, object.setObject("clusters"));
}
private static void clustersToSlime(Application application,
NodeList applicationNodes,
NodeRepository nodeRepository,
Cursor clustersObject) {
application.clusters().values().forEach(cluster -> toSlime(application, cluster, applicationNodes, nodeRepository, clustersObject));
}
private static void toSlime(Application application,
Cluster cluster,
NodeList applicationNodes,
NodeRepository nodeRepository,
Cursor clustersObject) {
NodeList nodes = applicationNodes.not().retired().cluster(cluster.id());
if (nodes.isEmpty()) return;
ClusterResources currentResources = nodes.toResources();
Cursor clusterObject = clustersObject.setObject(cluster.id().value());
clusterObject.setString("type", nodes.clusterSpec().type().name());
Limits limits = Limits.of(cluster).fullySpecified(nodes.clusterSpec(), nodeRepository, application.id());
toSlime(limits.min(), clusterObject.setObject("min"));
toSlime(limits.max(), clusterObject.setObject("max"));
if ( ! cluster.groupSize().isEmpty())
toSlime(cluster.groupSize(), clusterObject.setObject("groupSize"));
toSlime(currentResources, clusterObject.setObject("current"));
if (cluster.shouldSuggestResources(currentResources))
toSlime(cluster.suggested(), clusterObject.setObject("suggested"));
toSlime(cluster.target(), clusterObject.setObject("target"));
scalingEventsToSlime(cluster.scalingEvents(), clusterObject.setArray("scalingEvents"));
clusterObject.setLong("scalingDuration", cluster.scalingDuration(nodes.clusterSpec()).toMillis());
}
private static void toSlime(Autoscaling autoscaling, Cursor autoscalingObject) {
autoscalingObject.setString("status", autoscaling.status().name());
autoscalingObject.setString("description", autoscaling.description());
autoscaling.resources().ifPresent(resources -> toSlime(resources, autoscalingObject.setObject("resources")));
autoscalingObject.setLong("at", autoscaling.at().toEpochMilli());
toSlime(autoscaling.peak(), autoscalingObject.setObject("peak"));
toSlime(autoscaling.ideal(), autoscalingObject.setObject("ideal"));
toSlime(autoscaling.metrics(), autoscalingObject.setObject("metrics"));
}
private static void toSlime(ClusterResources resources, Cursor clusterResourcesObject) {
clusterResourcesObject.setLong("nodes", resources.nodes());
clusterResourcesObject.setLong("groups", resources.groups());
NodeResourcesSerializer.toSlime(resources.nodeResources(), clusterResourcesObject.setObject("resources"));
}
private static void toSlime(IntRange range, Cursor rangeObject) {
range.from().ifPresent(from -> rangeObject.setLong("from", range.from().getAsInt()));
range.to().ifPresent(to -> rangeObject.setLong("to", range.to().getAsInt()));
}
private static void toSlime(Load load, Cursor loadObject) {
loadObject.setDouble("cpu", load.cpu());
loadObject.setDouble("memory", load.memory());
loadObject.setDouble("disk", load.disk());
}
private static void toSlime(Autoscaling.Metrics metrics, Cursor metricsObject) {
metricsObject.setDouble("queryRate", metrics.queryRate());
metricsObject.setDouble("growthRateHeadroom", metrics.growthRateHeadroom());
metricsObject.setDouble("cpuCostPerQuery", metrics.cpuCostPerQuery());
}
private static void scalingEventsToSlime(List<ScalingEvent> scalingEvents, Cursor scalingEventsArray) {
for (ScalingEvent scalingEvent : scalingEvents) {
Cursor scalingEventObject = scalingEventsArray.addObject();
toSlime(scalingEvent.from(), scalingEventObject.setObject("from"));
toSlime(scalingEvent.to(), scalingEventObject.setObject("to"));
scalingEventObject.setLong("at", scalingEvent.at().toEpochMilli());
scalingEvent.completion().ifPresent(completion -> scalingEventObject.setLong("completion", completion.toEpochMilli()));
}
}
}
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