/// <summary>
/// Initializes an Event Message with the passed parameters
/// </summary>
internal EventMessage(InstrumentationSource source, Event instrumentationEvent, System.Type type, string method, string message, Exception exception, IErrorHandler errorHandler, EventParameter[] parameters)
{
try
{
// Set members.
_source = source == null ? string.Empty : source.FullyQualifiedReference;
_event = instrumentationEvent == null ? string.Empty : instrumentationEvent.Name;
_type = type == null ? string.Empty : type.AssemblyQualifiedName;
_method = method ?? string.Empty;
_message = message ?? string.Empty;
_parameters = parameters;
_exception = (exception == null ? null : new ExceptionInfo(exception, errorHandler));
// Store the time in UTC.
_time = System.DateTime.UtcNow;
if (instrumentationEvent != null)
{
_details = instrumentationEvent.CreateEventDetails();
}
}
catch (Exception ex)
{
// Don't propagate anything outside Instrumentation. If an exception is thrown send a
// message to the internal message handler, but only up to a maximum of 10 times.
if (_errorCount < Constants.Errors.MaximumErrorsToLog)
{
_errorCount++;
string errorMessage = "The following error occurred while trying to create an EventMessage:"
+ Environment.NewLine + ex;
if (_errorCount >= Constants.Errors.MaximumErrorsToLog)
{
errorMessage += Environment.NewLine + Environment.NewLine
+ "No further EventMessage constructor errors will be logged.";
}
// Use the simplest (private) EventMessage constructor to minimise the chance of
// another exception occurring and avoid a loop.
InstrumentationManager.GetInternalMessageHandler().HandleEventMessage(
new EventMessage(Constants.Events.Warning, typeof(EventMessage).Name,
typeof(EventMessage).AssemblyQualifiedName, ".ctor", errorMessage,
System.DateTime.UtcNow, new ExceptionInfo(ex, null)));
}
}
}
internal EventMessage(InstrumentationSource source, Event instrumentationEvent, System.Type type, string method, Exception exception, IErrorHandler errorHandler, EventParameter[] parameters)
: this(source, instrumentationEvent, type, method, null, exception, errorHandler, parameters)
{
}
internal EventMessage(InstrumentationSource source, Event instrumentationEvent, System.Type type, string method, string message)
: this(source, instrumentationEvent, type, method, message, null, null)
{
}
internal EventMessage(InstrumentationSource source, Event instrumentationEvent, System.Type type, string method, string message, Exception exception, IErrorHandler errorHandler)
: this(source, instrumentationEvent, type, method, message, exception, errorHandler, null)
{
}
internal EventMessage(InstrumentationSource source, Event instrumentationEvent, System.Type type)
: this(source, instrumentationEvent, type, null, (string)null, null, null)
{
}
