public NotifyEventArgs(
NotificationType notificationType,
UpsContext upsContext)
{
this.NotificationType = notificationType;
this.UpsContext = upsContext;
}
private static Ups GetOrCreateState(UpsContext ctx)
{
if (ctx.State != null)
{
return(ctx.State);
}
return(Ups.Create(
ctx.Name,
ctx.ServerState,
new Dictionary <string, string>()));
}
private static bool IsUpsDead(UpsContext upsContext)
{
// If we lost communication with the UPS and it has been longer than DEADTIME seconds
// and the last known status is OnBattery, assume that the UPS is dead.
return(upsContext.ServerState.ConnectionStatus == ServerConnectionStatus.LostConnection &&
upsContext.LastNoCommNotifyTime.HasValue &&
upsContext.LastNoCommNotifyTime.Value.OlderThan(
TimeSpan.FromSeconds(
ServiceRuntime.Instance.Configuration.ServiceConfiguration
.ServerNotRespondingTimeInSeconds)));
}
private void InitializeFromConfiguration()
{
foreach (UpsConfiguration upsConfiguration in
ServiceRuntime.Instance.Configuration.UpsConfigurations)
{
Logger.Info($"Loading server {upsConfiguration.DeviceName} from configuration");
try
{
upsConfiguration.ValidateProperties();
}
catch (Exception exception)
{
Logger.Error(
"An error occurred while loading the configuration for the UPS '{0}' on server '{1}. The error was: {2}",
upsConfiguration.DeviceName,
upsConfiguration.ServerConfiguration.DisplayName,
exception.Message);
Logger.Info("Exception during upsContext load. {0}", exception);
}
if (ServiceRuntime.Instance.UpsContexts.Any(
s => string.Equals(
s.QualifiedName,
upsConfiguration.GetQualifiedName())))
{
throw new WingnutException("The device already exists");
}
Server server = Server.CreateFromConfiguration(
upsConfiguration.ServerConfiguration);
UpsContext upsContext = new UpsContext(
upsConfiguration,
server);
ServiceRuntime.Instance.UpsContexts.Add(upsContext);
Logger.Info($"Ups '{upsContext.Name}' successfully loaded from configuration");
}
Logger.Info(
"Finished loading {0} devices from configuration",
ServiceRuntime.Instance.Configuration.UpsConfigurations.Count);
}
public void Notify(
UpsContext upsContext,
NotificationType notification)
{
if (this.OnNotify == null)
{
return;
}
foreach (EventHandler <NotifyEventArgs> notifyDelegate in this.OnNotify.GetInvocationList())
{
notifyDelegate.BeginInvoke(
this,
new NotifyEventArgs(
notification,
upsContext),
ar =>
{
EventHandler <NotifyEventArgs> thisDelegate = (EventHandler <NotifyEventArgs>)ar.AsyncState;
thisDelegate.EndInvoke(ar);
},
notifyDelegate);
}
}
public Ups AddUps(
Server server,
string password,
string upsName,
int numPowerSupplies,
bool monitorOnly,
bool force)
{
// Update the password on the server object since it can't be passed as a SecureString
// over the WCF channel
server.Password = SecureStringExtensions.FromString(password);
ServerConfiguration serverConfiguration = ServerConfiguration.CreateFromServer(server);
serverConfiguration.ValidateProperties();
// Recreate the server object to ensure that it matches what would be created when it
// is read from configuration at startup.
server = Server.CreateFromConfiguration(serverConfiguration);
UpsConfiguration upsConfiguration = new UpsConfiguration()
{
DeviceName = upsName,
MonitorOnly = monitorOnly,
NumPowerSupplies = numPowerSupplies,
ServerConfiguration = serverConfiguration
};
try
{
ServerConnection serverConnection = new ServerConnection(server);
serverConnection.ConnectAsync(CancellationToken.None).Wait();
Dictionary <string, string> upsVars =
serverConnection
.ListVarsAsync(upsName, CancellationToken.None).Result;
Ups ups = Ups.Create(upsName, server, upsVars);
// Success. Add the configuration and save
ServiceRuntime.Instance.Configuration.UpsConfigurations.Add(
upsConfiguration);
ServiceRuntime.Instance.SaveConfiguration();
// Add to the running instances
UpsContext upsContext = new UpsContext(upsConfiguration, server)
{
State = ups
};
ServiceRuntime.Instance.UpsContexts.Add(upsContext);
#pragma warning disable 4014
Task.Run(() =>
{
foreach (IManagementCallback callbackChannel in
ServiceRuntime.Instance.ClientCallbackChannels)
{
try
{
callbackChannel.UpsDeviceAdded(ups);
}
catch (Exception e)
{
Logger.Error("Caught exception while updating device. " + e.Message);
ServiceRuntime.Instance.ClientCallbackChannels.Remove(callbackChannel);
break;
}
}
});
#pragma warning restore 4014
return(ups);
}
catch (Exception exception)
{
Logger.Error("Exception while adding UPS device. {0}", exception.Message);
if (force)
{
// Add the configuration and save
ServiceRuntime.Instance.Configuration.UpsConfigurations.Add(
upsConfiguration);
ServiceRuntime.Instance.SaveConfiguration();
return(null);
}
throw;
}
}
/// <summary>
/// Process the status change for a single UPS. This method only logs events and performs
/// notification. No actions are taken by this method.
/// </summary>
/// <param name="changeData">The change data</param>
private void ProcessSingleUpsStatusChange(UpsStatusChangeData changeData)
{
// Alias the UpsContext to make the code here a bit cleaner
UpsContext ctx = changeData.UpsContext;
// First check if we do not have connectivity to the UPS, since we will want to
// skip processing other state checks if this is the case
if (ctx.ServerState.ConnectionStatus == ServerConnectionStatus.LostConnection)
{
if (ctx.LastNoCommNotifyTime == null)
{
string error = changeData.Exception == null
? "(none)"
: changeData.Exception.Message;
Logger.CommunicationLost(ctx.Name, ctx.ServerState.Name, error);
ServiceRuntime.Instance.Notify(ctx, NotificationType.CommunicationLost);
ctx.LastNoCommNotifyTime = DateTime.Now;
}
else if (
ctx.LastNoCommNotifyTime.Value.OlderThan(
TimeSpan.FromSeconds(
ServiceRuntime.Instance.Configuration.ServiceConfiguration.NoCommNotifyDelayInSeconds)))
{
string error = changeData.Exception == null
? "(none)"
: changeData.Exception.Message;
Logger.NoCommunication(ctx.Name, ctx.ServerState.Name, error);
ServiceRuntime.Instance.Notify(
ctx,
NotificationType.NoCommunication);
ctx.LastNoCommNotifyTime = DateTime.Now;
}
}
else if (ctx.ServerState.ConnectionStatus == ServerConnectionStatus.Connected &&
ctx.LastNoCommNotifyTime != null)
{
ServiceRuntime.Instance.Notify(
ctx,
NotificationType.CommunicationRestored);
Logger.CommunicationRestored(ctx.Name, ctx.ServerState.Name);
Logger.Info("Communication with UPS {0} was restored", ctx.QualifiedName);
ctx.LastNoCommNotifyTime = null;
}
if (IsStatusTransition(changeData, DeviceStatusType.Online, true))
{
// The device is going from !Online to Online
Logger.UpsOnline(ctx.Name, ctx.ServerState.Name);
ServiceRuntime.Instance.Notify(ctx, NotificationType.Online);
}
if (IsStatusTransition(changeData, DeviceStatusType.OnBattery, false))
{
// The device is going from !OnBattery to OnBattery
Logger.UpsOnBattery(ctx.Name, ctx.ServerState.Name);
ServiceRuntime.Instance.Notify(ctx, NotificationType.OnBattery);
}
if (IsStatusTransition(changeData, DeviceStatusType.LowBattery, true))
{
// The device is going from !LowBattery to LowBattery
Logger.UpsLowBattery(ctx.Name, ctx.ServerState.Name);
ServiceRuntime.Instance.Notify(ctx, NotificationType.LowBattery);
}
if (ctx.State.Status.HasFlag(DeviceStatusType.ReplaceBattery))
{
// The ReplaceBattery status is set. Check if we haven't yet logged an event
// and notified for this, or if we have waited enough time to do it again.
if (ctx.LastReplaceBatteryWarnTime == null ||
ctx.LastReplaceBatteryWarnTime.Value.OlderThan(
TimeSpan.FromSeconds(
ServiceRuntime.Instance.Configuration.ServiceConfiguration
.ReplaceBatteryWarningTimeInSeconds)))
{
Logger.UpsReplaceBattery(
ctx.Name,
ctx.ServerState.Name,
ctx.State.BatteryLastReplacement);
Logger.Info(
"The UPS {0} is reporting that the battery should be replaced. The last replacement date is {1}",
ctx.QualifiedName,
ctx.State.BatteryLastReplacement);
ServiceRuntime.Instance.Notify(
ctx,
NotificationType.ReplaceBattery);
ctx.LastReplaceBatteryWarnTime = DateTime.Now;
}
}
DeviceSeverityType severity = Constants.Device.GetStatusSeverity(
ctx.State.Status);
if (changeData.PreviousState == null)
{
// This is the very first time polling this device, so log the initial status
var newSetFlags = EnumExtensions.GetSetFlagNames <DeviceStatusType>(
ctx.State.Status);
Logger.Log(
Constants.Device.DeviceSeverityToLogLevel(severity),
"Initial status of UPS {0} is {1}",
ctx.QualifiedName,
string.Join("|", newSetFlags));
}
else if (ctx.State.Status != changeData.PreviousState.Status)
{
// The status of the UPS has changed, so log the previous and new status
var initialSetFlags = EnumExtensions.GetSetFlagNames <DeviceStatusType>(
changeData.PreviousState.Status);
var newSetFlags = EnumExtensions.GetSetFlagNames <DeviceStatusType>(
ctx.State.Status);
Logger.Log(
Constants.Device.DeviceSeverityToLogLevel(severity),
"Status of UPS {0} has changed from {1} to {2}",
ctx.QualifiedName,
string.Join("|", initialSetFlags),
string.Join("|", newSetFlags));
}
}