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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.metricsproxy.service;
import ai.vespa.metricsproxy.core.MonitoringConfig;
import ai.vespa.metricsproxy.metric.model.DimensionId;
import ai.vespa.metricsproxy.service.VespaServicesConfig.Service;
import com.yahoo.component.annotation.Inject;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import static ai.vespa.metricsproxy.core.MetricsConsumers.toUnmodifiableLinkedMap;
import static ai.vespa.metricsproxy.metric.model.DimensionId.toDimensionId;
import static java.util.logging.Level.FINE;
/**
* Creates representations for the Vespa services running on the node,
* and provides methods for updating and getting them.
*
* @author gjoranv
*/
public class VespaServices {
private static final Logger log = Logger.getLogger(VespaServices.class.getName());
public static final String ALL_SERVICES = "all";
private final ConfigSentinelClient sentinel;
private final List<VespaService> services;
@Inject
public VespaServices(VespaServicesConfig config, MonitoringConfig monitoringConfig, ConfigSentinelClient sentinel) {
this.sentinel = sentinel;
this.services = createServices(config, monitoringConfig.systemName());
updateServices(services);
}
public VespaServices(List<VespaService> services) {
this.services = services;
sentinel = null;
}
private List<VespaService> createServices(VespaServicesConfig servicesConfig, String monitoringSystemName) {
List<VespaService> services = new ArrayList<>();
for (Service s : servicesConfig.service()) {
log.log(FINE, () -> "Creating service " + s.name());
VespaService vespaService = VespaService.create(s.name(), s.configId(), s.port(), monitoringSystemName,
createServiceDimensions(s));
services.add(vespaService);
}
log.log(FINE, () -> "Created new services: " + services.size());
return services;
}
/**
* Sets 'alive=false' for services that are no longer running.
* Note that the status is updated in-place for the given services.
*/
public final void updateServices(List<VespaService> services) {
if (sentinel != null) {
log.log(FINE, "Updating services ");
sentinel.updateServiceStatuses(services);
}
}
/**
* Get all known vespa services
*
* @return A list of VespaService objects
*/
public List<VespaService> getVespaServices() {
return List.copyOf(services);
}
/**
* @param id The configid
* @return A list with size 1 as there should only be one service with the given configid
*/
public List<VespaService> getInstancesById(String id) {
List<VespaService> myServices = new ArrayList<>();
for (VespaService s : services) {
if (s.getConfigId().equals(id)) {
myServices.add(s);
}
}
return myServices;
}
/**
* Get services matching pattern for the name used in the monitoring system.
*
* @param service name in monitoring system + service name, without index, e.g: vespa.container
* @return A list of VespaServices
*/
public List<VespaService> getMonitoringServices(String service) {
if (service.equalsIgnoreCase(ALL_SERVICES))
return services;
List<VespaService> myServices = new ArrayList<>();
for (VespaService s : services) {
log.log(FINE, () -> "getMonitoringServices. service=" + service + ", checking against " + s + ", which has monitoring name " + s.getMonitoringName());
if (s.getMonitoringName().id.equalsIgnoreCase(service)) {
myServices.add(s);
}
}
return myServices;
}
private static Map<DimensionId, String> createServiceDimensions(Service service) {
return service.dimension().stream().collect(
toUnmodifiableLinkedMap(dim -> toDimensionId(dim.key()), Service.Dimension::value));
}
}
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