public override Task <object> GetValueAsync()
{
if (_parameter.ParameterType == typeof(TraceEvent))
{
return(Task.FromResult <object>(_value.GetEvents().Last()));
}
else if (_parameter.ParameterType == typeof(IEnumerable <TraceEvent>))
{
return(Task.FromResult <object>(_value.GetEvents().AsEnumerable()));
}
return(Task.FromResult <object>(_value));
}
/// <summary>
/// Process Web Job Function Invocation Exceptions
/// </summary>
/// <param name="filter">The <see cref="TraceFilter"/> containing information about the exception.</param>
public void Process(TraceFilter filter)
{
// Get Web Job scm Host URI: yoursite.scm.azurewebsites.net
var httpHost = Environment.GetEnvironmentVariable("HTTP_HOST");
var events = filter.GetEvents().Where(e => e.Exception != null);
foreach (var traceEvent in events)
{
var tags = new List <string>()
{
"UnhandledException"
};
tags.AddRange(Tags);
// Add all trace properties to custom data
var customData = traceEvent.Properties.ToDictionary(traceEventProperty => traceEventProperty.Key, traceEventProperty => traceEventProperty.Value);
// If the FunctionInvocationId is available to us, we can use it to build a clickable link using the http host
if (traceEvent.Properties.ContainsKey("MS_FunctionInvocationId") && !string.IsNullOrEmpty(httpHost))
{
var functionInvocationId = traceEvent.Properties["MS_FunctionInvocationId"];
customData["Dashboard URL"] = $"https://{httpHost}/azurejobs/#/functions/invocations/{functionInvocationId}";
}
// If the FunctionDescriptor is available to us, we can use it to tag the executed function in raygun
if (traceEvent.Properties.ContainsKey("MS_FunctionDescriptor"))
{
var functionDescriptor = (FunctionDescriptor)traceEvent.Properties["MS_FunctionDescriptor"];
tags.Add(functionDescriptor.ShortName);
}
_client.Send(traceEvent.Exception, tags.Distinct().ToList(), customData);
}
}
public void UnHandledException([ErrorTrigger("0:01:00", 4)] TraceFilter filter, TextWriter log)
{
foreach (var traceEvent in filter.GetEvents())
{
_telemetryClient.TrackException(traceEvent.Exception);
}
// log the last detailed errors to the Dashboard
log.WriteLine(filter.GetDetailedMessage(1));
}
public void Trace_AnonymousFilter_NotifiesAsExpected()
{
TraceFilter filter = null;
var monitor = new TraceMonitor()
.Filter(p =>
{
return(true);
}, "Custom Message")
.Subscribe(p =>
{
filter = p;
});
TraceEvent traceEvent = new TraceEvent(TraceLevel.Error, "Error!");
monitor.Trace(traceEvent);
Assert.Equal("Custom Message", filter.Message);
Assert.Equal(1, filter.GetEvents().Count());
Assert.Same(traceEvent, filter.GetEvents().Single());
}
public void ErrorHandler([ErrorTrigger] TraceFilter traceFilter)
{
TraceFilter = traceFilter;
foreach (TraceEvent error in traceFilter.GetEvents())
{
Errors.Add(error);
}
if (_fail)
{
throw new Exception("Kaboom!");
}
}
