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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.health;
import com.google.inject.Inject;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.provision.ApplicationId;
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.duper.ConfigServerApplication;
import com.yahoo.vespa.service.duper.ZoneApplication;
import com.yahoo.vespa.service.manager.MonitorManager;
import java.util.concurrent.ConcurrentHashMap;
/**
* Manages all /state/v1/health related monitoring.
*
* @author hakon
*/
public class HealthMonitorManager implements MonitorManager {
private final ConcurrentHashMap<ApplicationId, ApplicationHealthMonitor> healthMonitors = new ConcurrentHashMap<>();
@Inject
public HealthMonitorManager() { }
@Override
public void applicationActivated(ApplicationInfo application) {
if (wouldMonitor(application.getApplicationId())) {
ApplicationHealthMonitor monitor = ApplicationHealthMonitor.startMonitoring(application);
healthMonitors.put(application.getApplicationId(), monitor);
}
}
@Override
public void applicationRemoved(ApplicationId id) {
ApplicationHealthMonitor monitor = healthMonitors.remove(id);
if (monitor != null) {
monitor.close();
}
}
@Override
public ServiceStatus getStatus(ApplicationId applicationId,
ClusterId clusterId,
ServiceType serviceType,
ConfigId configId) {
if (ZoneApplication.isNodeAdminService(applicationId, clusterId, serviceType)) {
// If node admin doesn't run in a JDisc container, it must be monitored with health.
// TODO: Do proper health check
return ServiceStatus.UP;
}
ApplicationHealthMonitor monitor = healthMonitors.get(applicationId);
if (monitor == null) {
return ServiceStatus.NOT_CHECKED;
}
return monitor.getStatus(applicationId, clusterId, serviceType, configId);
}
@Override
public boolean wouldMonitor(ApplicationId id) {
if (id.equals(ConfigServerApplication.CONFIG_SERVER_APPLICATION.getApplicationId())) {
return true;
}
return false;
}
}
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