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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.monitor.internal.slobrok;
import com.google.inject.Inject;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.jrt.slobrok.api.Mirror;
import com.yahoo.log.LogLevel;
import com.yahoo.vespa.applicationmodel.ClusterId;
import com.yahoo.vespa.applicationmodel.ConfigId;
import com.yahoo.vespa.applicationmodel.ServiceStatus;
import com.yahoo.vespa.applicationmodel.ServiceType;
import com.yahoo.vespa.service.monitor.SlobrokApi;
import com.yahoo.vespa.service.monitor.application.ConfigServerApplication;
import com.yahoo.vespa.service.monitor.internal.MonitorManager;
import java.util.HashMap;
import java.util.List;
import java.util.Optional;
import java.util.function.Supplier;
import java.util.logging.Logger;
public class SlobrokMonitorManagerImpl implements SlobrokApi, MonitorManager {
private static final Logger logger =
Logger.getLogger(SlobrokMonitorManagerImpl.class.getName());
private final Supplier<SlobrokMonitor> slobrokMonitorFactory;
private final Object monitor = new Object();
private final HashMap<ApplicationId, SlobrokMonitor> slobrokMonitors = new HashMap<>();
@Inject
public SlobrokMonitorManagerImpl() {
this(SlobrokMonitor::new);
}
SlobrokMonitorManagerImpl(Supplier<SlobrokMonitor> slobrokMonitorFactory) {
this.slobrokMonitorFactory = slobrokMonitorFactory;
}
@Override
public void applicationActivated(ApplicationInfo application) {
if (!applicationMonitoredWithSlobrok(application.getApplicationId())) {
return;
}
synchronized (monitor) {
SlobrokMonitor slobrokMonitor = slobrokMonitors.computeIfAbsent(
application.getApplicationId(),
id -> slobrokMonitorFactory.get());
slobrokMonitor.updateSlobrokList(application);
}
}
@Override
public void applicationRemoved(ApplicationId id) {
if (!applicationMonitoredWithSlobrok(id)) {
return;
}
synchronized (monitor) {
SlobrokMonitor slobrokMonitor = slobrokMonitors.remove(id);
if (slobrokMonitor == null) {
logger.log(LogLevel.WARNING, "Removed application " + id +
", but it was never registered");
} else {
slobrokMonitor.close();
}
}
}
@Override
public List<Mirror.Entry> lookup(ApplicationId id, String pattern) {
synchronized (monitor) {
SlobrokMonitor slobrokMonitor = slobrokMonitors.get(id);
if (slobrokMonitor == null) {
throw new IllegalArgumentException("Slobrok manager has no knowledge of application " + id);
} else {
return slobrokMonitor.lookup(pattern);
}
}
}
@Override
public ServiceStatus getStatus(ApplicationId applicationId,
ClusterId clusterId,
ServiceType serviceType,
ConfigId configId) {
if (!applicationMonitoredWithSlobrok(applicationId)) {
return ServiceStatus.NOT_CHECKED;
}
Optional<String> slobrokServiceName = findSlobrokServiceName(serviceType, configId);
if (slobrokServiceName.isPresent()) {
synchronized (monitor) {
SlobrokMonitor slobrokMonitor = slobrokMonitors.get(applicationId);
if (slobrokMonitor != null &&
slobrokMonitor.registeredInSlobrok(slobrokServiceName.get())) {
return ServiceStatus.UP;
} else {
return ServiceStatus.DOWN;
}
}
} else {
return ServiceStatus.NOT_CHECKED;
}
}
private boolean applicationMonitoredWithSlobrok(ApplicationId applicationId) {
if (applicationId.equals(ConfigServerApplication.CONFIG_SERVER_APPLICATION.getApplicationId())) {
return false;
}
return true;
}
/**
* Get the Slobrok service name of the service, or empty if the service
* is not registered with Slobrok.
*/
Optional<String> findSlobrokServiceName(ServiceType serviceType, ConfigId configId) {
switch (serviceType.s()) {
case "adminserver":
case "config-sentinel":
case "configproxy":
case "configserver":
case "logd":
case "logserver":
case "metricsproxy":
case "slobrok":
case "transactionlogserver":
return Optional.empty();
case "topleveldispatch":
return Optional.of(configId.s());
case "qrserver":
case "container":
case "docprocservice":
case "container-clustercontroller":
return Optional.of("vespa/service/" + configId.s());
case "searchnode": //TODO: handle only as storagenode instead of both as searchnode/storagenode
return Optional.of(configId.s() + "/realtimecontroller");
case "distributor":
case "storagenode":
return Optional.of("storage/cluster." + configId.s());
default:
logger.log(LogLevel.DEBUG, "Unknown service type " + serviceType.s() +
" with config id " + configId.s());
return Optional.empty();
}
}
}
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