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// Copyright Verizon Media. 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.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.ClusterModel;
import com.yahoo.vespa.hosted.provision.autoscale.MetricsDb;
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,
MetricsDb metricsDb,
NodeRepository nodeRepository,
URI applicationUri) {
Slime slime = new Slime();
toSlime(application, applicationNodes, metricsDb, nodeRepository, slime.setObject(), applicationUri);
return slime;
}
private static void toSlime(Application application,
NodeList applicationNodes,
MetricsDb metricsDb,
NodeRepository nodeRepository,
Cursor object,
URI applicationUri) {
object.setString("url", applicationUri.toString());
object.setString("id", application.id().toFullString());
clustersToSlime(application, applicationNodes, metricsDb, nodeRepository, object.setObject("clusters"));
}
private static void clustersToSlime(Application application,
NodeList applicationNodes,
MetricsDb metricsDb,
NodeRepository nodeRepository,
Cursor clustersObject) {
application.clusters().values().forEach(cluster -> toSlime(application, cluster, applicationNodes, metricsDb, nodeRepository, clustersObject));
}
private static void toSlime(Application application,
Cluster cluster,
NodeList applicationNodes,
MetricsDb metricsDb,
NodeRepository nodeRepository,
Cursor clustersObject) {
NodeList nodes = applicationNodes.not().retired().cluster(cluster.id());
if (nodes.isEmpty()) return;
ClusterResources currentResources = nodes.toResources();
ClusterModel clusterModel = new ClusterModel(application, cluster, nodes.clusterSpec(), nodes, metricsDb, nodeRepository.clock());
Cursor clusterObject = clustersObject.setObject(cluster.id().value());
clusterObject.setString("type", nodes.clusterSpec().type().name());
toSlime(cluster.minResources(), clusterObject.setObject("min"));
toSlime(cluster.maxResources(), clusterObject.setObject("max"));
toSlime(currentResources, clusterObject.setObject("current"));
if (cluster.shouldSuggestResources(currentResources))
cluster.suggestedResources().ifPresent(suggested -> toSlime(suggested.resources(), clusterObject.setObject("suggested")));
cluster.targetResources().ifPresent(target -> toSlime(target, clusterObject.setObject("target")));
clusterUtilizationToSlime(clusterModel, clusterObject.setObject("utilization"));
scalingEventsToSlime(cluster.scalingEvents(), clusterObject.setArray("scalingEvents"));
clusterObject.setString("autoscalingStatus", cluster.autoscalingStatus());
clusterObject.setLong("scalingDuration", clusterModel.scalingDuration().toMillis());
clusterObject.setDouble("maxQueryGrowthRate", clusterModel.maxQueryGrowthRate());
clusterObject.setDouble("currentQueryFractionOfMax", clusterModel.queryFractionOfMax());
}
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 clusterUtilizationToSlime(ClusterModel clusterModel, Cursor utilizationObject) {
utilizationObject.setDouble("cpu", clusterModel.averageLoad().cpu());
utilizationObject.setDouble("idealCpu", clusterModel.idealLoad().cpu());
utilizationObject.setDouble("memory", clusterModel.averageLoad().memory());
utilizationObject.setDouble("idealMemory", clusterModel.idealLoad().memory());
utilizationObject.setDouble("disk", clusterModel.averageLoad().disk());
utilizationObject.setDouble("idealDisk", clusterModel.idealLoad().disk());
}
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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