public BrokenLifecycleEvent(Org.Apache.Hadoop.Service.Service service, string action
)
: base("Lifecycle Failure during " + action + " state is " + service.GetServiceState
())
{
state = service.GetServiceState();
}
/// <summary>Stop the services in reverse order</summary>
/// <param name="numOfServicesStarted">index from where the stop should work</param>
/// <param name="stopOnlyStartedServices">
/// flag to say "only start services that are
/// started, not those that are NOTINITED or INITED.
/// </param>
/// <exception cref="RuntimeException">
/// the first exception raised during the
/// stop process -<i>after all services are stopped</i>
/// </exception>
private void Stop(int numOfServicesStarted, bool stopOnlyStartedServices)
{
// stop in reverse order of start
Exception firstException = null;
IList <Org.Apache.Hadoop.Service.Service> services = GetServices();
for (int i = numOfServicesStarted - 1; i >= 0; i--)
{
Org.Apache.Hadoop.Service.Service service = services[i];
if (Log.IsDebugEnabled())
{
Log.Debug("Stopping service #" + i + ": " + service);
}
Service.STATE state = service.GetServiceState();
//depending on the stop police
if (state == Service.STATE.Started || (!stopOnlyStartedServices && state == Service.STATE
.Inited))
{
Exception ex = ServiceOperations.StopQuietly(Log, service);
if (ex != null && firstException == null)
{
firstException = ex;
}
}
}
//after stopping all services, rethrow the first exception raised
if (firstException != null)
{
throw ServiceStateException.Convert(firstException);
}
}
public static void AssertServiceInState(Org.Apache.Hadoop.Service.Service service
, Service.STATE state)
{
NUnit.Framework.Assert.IsNotNull("Null service", service);
Assert.Equal("Service in wrong state: " + service, state, service
.GetServiceState());
}
public virtual void StateChanged(Org.Apache.Hadoop.Service.Service service)
{
lock (this)
{
notifyingState = service.GetServiceState();
Runtime.NotifyAll(this);
}
}
public virtual void StateChanged(Org.Apache.Hadoop.Service.Service service)
{
lock (this)
{
eventCount++;
lastService = service;
lastState = service.GetServiceState();
stateEventList.AddItem(lastState);
if (lastState == failingState)
{
failureCount++;
throw new BreakableService.BrokenLifecycleEvent(service, "Failure entering " + lastState
+ " for " + service.GetName());
}
}
}
private void AssertInState(Service.STATE expected, Org.Apache.Hadoop.Service.Service
service)
{
Assert.Equal("Service state should have been " + expected + " in "
+ service, expected, service.GetServiceState());
}
/// <summary>Callback for a state change event: log it</summary>
/// <param name="service">the service that has changed.</param>
public virtual void StateChanged(Org.Apache.Hadoop.Service.Service service)
{
log.Info("Entry to state " + service.GetServiceState() + " for " + service.GetName
());
}