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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.orchestrator.model;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.applicationmodel.ApplicationInstance;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceCluster;
import com.yahoo.vespa.applicationmodel.ServiceInstance;
import com.yahoo.vespa.orchestrator.OrchestratorContext;
import com.yahoo.vespa.orchestrator.OrchestratorUtil;
import com.yahoo.vespa.orchestrator.controller.ClusterControllerClientFactory;
import com.yahoo.vespa.orchestrator.status.ApplicationInstanceStatus;
import com.yahoo.vespa.orchestrator.status.HostStatus;
import com.yahoo.vespa.orchestrator.status.MutableStatusRegistry;
import java.util.Collection;
import java.util.Comparator;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
import static com.yahoo.vespa.orchestrator.OrchestratorUtil.getHostsUsedByApplicationInstance;
public class ApplicationApiImpl implements ApplicationApi {
private final ApplicationInstance applicationInstance;
private final NodeGroup nodeGroup;
private final MutableStatusRegistry hostStatusService;
private final List<ClusterApi> clusterInOrder;
private final Map<HostName, HostStatus> hostStatusMap;
public ApplicationApiImpl(NodeGroup nodeGroup,
MutableStatusRegistry hostStatusService,
ClusterControllerClientFactory clusterControllerClientFactory) {
this.applicationInstance = nodeGroup.getApplication();
this.nodeGroup = nodeGroup;
this.hostStatusService = hostStatusService;
Collection<HostName> hosts = getHostsUsedByApplicationInstance(applicationInstance);
this.hostStatusMap = hosts.stream().collect(Collectors.toMap(Function.identity(), hostStatusService::getHostStatus));
this.clusterInOrder = makeClustersInOrder(nodeGroup, hostStatusMap, clusterControllerClientFactory);
}
@Override
public ApplicationId applicationId() {
return OrchestratorUtil.toApplicationId(applicationInstance.reference());
}
private HostStatus getHostStatus(HostName hostName) {
return hostStatusMap.getOrDefault(hostName, HostStatus.NO_REMARKS);
}
@Override
public List<ClusterApi> getClusters() {
return clusterInOrder;
}
@Override
public List<StorageNode> getStorageNodesAllowedToBeDownInGroupInReverseClusterOrder() {
return getStorageNodesInGroupInClusterOrder().stream()
.filter(storageNode -> getHostStatus(storageNode.hostName()) == HostStatus.ALLOWED_TO_BE_DOWN)
.sorted(Comparator.reverseOrder())
.collect(Collectors.toList());
}
@Override
public NodeGroup getNodeGroup() {
return nodeGroup;
}
@Override
public List<StorageNode> getStorageNodesInGroupInClusterOrder() {
return clusterInOrder.stream()
.map(ClusterApi::storageNodeInGroup)
.filter(Optional::isPresent)
.map(Optional::get)
.collect(Collectors.toList());
}
@Override
public List<StorageNode> getUpStorageNodesInGroupInClusterOrder() {
return clusterInOrder.stream()
.map(ClusterApi::upStorageNodeInGroup)
.filter(Optional::isPresent)
.map(Optional::get)
.collect(Collectors.toList());
}
@Override
public ApplicationInstanceStatus getApplicationStatus() {
return hostStatusService.getApplicationInstanceStatus();
}
@Override
public void setHostState(OrchestratorContext context, HostName hostName, HostStatus status) {
hostStatusService.setHostState(hostName, status);
}
@Override
public List<HostName> getNodesInGroupWithStatus(HostStatus status) {
return nodeGroup.getHostNames().stream()
.filter(hostName -> getHostStatus(hostName) == status)
.collect(Collectors.toList());
}
private List<ClusterApi> makeClustersInOrder
(NodeGroup nodeGroup,
Map<HostName, HostStatus> hostStatusMap,
ClusterControllerClientFactory clusterControllerClientFactory) {
Set<ServiceCluster> clustersInGroup = getServiceClustersInGroup(nodeGroup);
return clustersInGroup.stream()
.map(serviceCluster -> new ClusterApiImpl(
this,
serviceCluster,
nodeGroup,
hostStatusMap,
clusterControllerClientFactory))
.sorted(ApplicationApiImpl::compareClusters)
.collect(Collectors.toList());
}
private static int compareClusters(ClusterApi lhs, ClusterApi rhs) {
int diff = lhs.serviceType().toString().compareTo(rhs.serviceType().toString());
if (diff != 0) {
return diff;
}
return lhs.clusterId().toString().compareTo(rhs.clusterId().toString());
}
private static Set<ServiceCluster> getServiceClustersInGroup(NodeGroup nodeGroup) {
ApplicationInstance applicationInstance = nodeGroup.getApplication();
Set<ServiceCluster> serviceClustersInGroup = new HashSet<>();
for (ServiceCluster cluster : applicationInstance.serviceClusters()) {
for (ServiceInstance instance : cluster.serviceInstances()) {
if (nodeGroup.contains(instance.hostName())) {
serviceClustersInGroup.add(cluster);
break;
}
}
}
return serviceClustersInGroup;
}
}
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