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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.orchestrator.resources;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.yahoo.component.annotation.Inject;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.container.jdisc.ThreadedHttpRequestHandler;
import com.yahoo.jrt.slobrok.api.Mirror;
import com.yahoo.restapi.RestApi;
import com.yahoo.restapi.RestApiException;
import com.yahoo.restapi.RestApiRequestHandler;
import com.yahoo.vespa.applicationmodel.ApplicationInstance;
import com.yahoo.vespa.applicationmodel.ApplicationInstanceReference;
import com.yahoo.vespa.applicationmodel.ClusterId;
import com.yahoo.vespa.applicationmodel.ConfigId;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceStatusInfo;
import com.yahoo.vespa.applicationmodel.ServiceType;
import com.yahoo.vespa.orchestrator.OrchestratorUtil;
import com.yahoo.vespa.orchestrator.restapi.wire.SlobrokEntryResponse;
import com.yahoo.vespa.orchestrator.restapi.wire.WireHostInfo;
import com.yahoo.vespa.orchestrator.status.HostInfo;
import com.yahoo.vespa.orchestrator.status.HostInfos;
import com.yahoo.vespa.orchestrator.status.StatusService;
import com.yahoo.vespa.service.manager.MonitorManager;
import com.yahoo.vespa.service.manager.UnionMonitorManager;
import com.yahoo.vespa.service.monitor.ServiceMonitor;
import com.yahoo.vespa.service.monitor.SlobrokApi;
import java.time.Instant;
import java.util.List;
import java.util.TreeMap;
import java.util.stream.Collectors;
import static com.yahoo.vespa.orchestrator.OrchestratorUtil.getHostsUsedByApplicationInstance;
import static com.yahoo.vespa.orchestrator.OrchestratorUtil.parseApplicationInstanceReference;
/**
* Provides a read-only API for looking into the current state as seen by the Orchestrator.
* This API can be unstable and is not meant to be used programmatically.
*
* @author andreer
* @author Oyvind Bakksjo
* @author bjorncs
*/
public class InstanceRequestHandler extends RestApiRequestHandler<InstanceRequestHandler> {
public static final String DEFAULT_SLOBROK_PATTERN = "**";
private final StatusService statusService;
private final SlobrokApi slobrokApi;
private final MonitorManager rootManager;
private final ServiceMonitor serviceMonitor;
@Inject
public InstanceRequestHandler(ThreadedHttpRequestHandler.Context context,
ServiceMonitor serviceMonitor,
StatusService statusService,
SlobrokApi slobrokApi,
UnionMonitorManager rootManager) {
super(context, InstanceRequestHandler::createRestApiDefinition);
this.statusService = statusService;
this.slobrokApi = slobrokApi;
this.rootManager = rootManager;
this.serviceMonitor = serviceMonitor;
}
private static RestApi createRestApiDefinition(InstanceRequestHandler self) {
return RestApi.builder()
.addRoute(RestApi.route("/orchestrator/v1/instances")
.get(self::getAllInstances))
.addRoute(RestApi.route("/orchestrator/v1/instances/{instanceId}")
.get(self::getInstance))
.addRoute(RestApi.route("/orchestrator/v1/instances/{instanceId}/slobrok")
.get(self::getSlobrokEntries))
.addRoute(RestApi.route("/orchestrator/v1/instances/{instanceId}/serviceStatusInfo")
.get(self::getServiceStatus))
.registerJacksonResponseEntity(List.class)
.registerJacksonResponseEntity(InstanceStatusResponse.class)
.registerJacksonResponseEntity(ServiceStatusInfo.class)
// Overriding object mapper to change serialization of timestamps
.setObjectMapper(new ObjectMapper()
.registerModule(new JavaTimeModule())
.registerModule(new Jdk8Module())
.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, true))
.build();
}
private List<ApplicationInstanceReference> getAllInstances(RestApi.RequestContext context) {
return serviceMonitor.getAllApplicationInstanceReferences().stream().sorted().toList();
}
private InstanceStatusResponse getInstance(RestApi.RequestContext context) {
String instanceIdString = context.pathParameters().getStringOrThrow("instanceId");
ApplicationInstanceReference instanceId = parseInstanceId(instanceIdString);
ApplicationInstance applicationInstance
= serviceMonitor.getApplication(instanceId)
.orElseThrow(RestApiException.NotFound::new);
HostInfos hostInfos = statusService.getHostInfosByApplicationResolver().apply(applicationInstance.reference());
TreeMap<HostName, WireHostInfo> hostStatusMap =
getHostsUsedByApplicationInstance(applicationInstance)
.stream()
.collect(Collectors.toMap(
hostName -> hostName,
hostName -> hostInfoToWire(hostInfos.getOrNoRemarks(hostName)),
(u, v) -> { throw new IllegalStateException(); },
TreeMap::new));
return InstanceStatusResponse.create(applicationInstance, hostStatusMap);
}
private WireHostInfo hostInfoToWire(HostInfo hostInfo) {
String hostStatusString = hostInfo.status().asString();
String suspendedSinceUtcOrNull = hostInfo.suspendedSince().map(Instant::toString).orElse(null);
return new WireHostInfo(hostStatusString, suspendedSinceUtcOrNull);
}
private List<SlobrokEntryResponse> getSlobrokEntries(RestApi.RequestContext context) {
String instanceId = context.pathParameters().getStringOrThrow("instanceId");
String pattern = context.queryParameters().getString("pattern").orElse(null);
ApplicationInstanceReference reference = parseInstanceId(instanceId);
ApplicationId applicationId = OrchestratorUtil.toApplicationId(reference);
if (pattern == null) {
pattern = DEFAULT_SLOBROK_PATTERN;
}
List<Mirror.Entry> entries = slobrokApi.lookup(applicationId, pattern);
return entries.stream()
.map(entry -> new SlobrokEntryResponse(entry.getName(), entry.getSpecString()))
.toList();
}
private ServiceStatusInfo getServiceStatus(RestApi.RequestContext context) {
String instanceId = context.pathParameters().getStringOrThrow("instanceId");
String clusterIdString = context.queryParameters().getStringOrThrow("clusterId");
String serviceTypeString = context.queryParameters().getStringOrThrow("serviceType");
String configIdString = context.queryParameters().getStringOrThrow("configId");
ApplicationInstanceReference reference = parseInstanceId(instanceId);
ApplicationId applicationId = OrchestratorUtil.toApplicationId(reference);
ClusterId clusterId = new ClusterId(clusterIdString);
ServiceType serviceType = new ServiceType(serviceTypeString);
ConfigId configId = new ConfigId(configIdString);
return rootManager.getStatus(applicationId, clusterId, serviceType, configId);
}
private static ApplicationInstanceReference parseInstanceId(String instanceIdString) {
try {
return parseApplicationInstanceReference(instanceIdString);
} catch (IllegalArgumentException e) {
throw new RestApiException.BadRequest(e.getMessage(), e);
}
}
}
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