/// <summary>
/// Receives tracking events. Instance terminated events are written to the event log.
/// </summary>
protected override void Send(TrackingRecord record)
{
WorkflowTrackingRecord instanceTrackingRecord = record as WorkflowTrackingRecord;
if ((null == instanceTrackingRecord) || (TrackingWorkflowEvent.Terminated != instanceTrackingRecord.TrackingWorkflowEvent))
{
return;
}
// Create an EventLog instance and assign its source.
EventLog log = new EventLog();
log.Source = sourceValue;
// Write an informational entry to the event log.
TrackingWorkflowTerminatedEventArgs terminatedEventArgs = instanceTrackingRecord.EventArgs as TrackingWorkflowTerminatedEventArgs;
StringBuilder message = new StringBuilder(512);
message.AppendLine(string.Format(System.Globalization.CultureInfo.InvariantCulture, "Workflow instance {0} has been terminated.", parametersValue.InstanceId.ToString()));
message.AppendLine();
if (null != terminatedEventArgs.Exception)
{
message.AppendLine(terminatedEventArgs.Exception.ToString());
}
log.WriteEntry(message.ToString(), EventLogEntryType.Warning);
}
static void WriteTerminatedEventArgs(string eventDescription, TrackingWorkflowTerminatedEventArgs terminatedEventArgs, DateTime eventDataTime)
{
Console.WriteLine("\nTerminated Event Arguments Read From Tracking Database:\n");
Console.WriteLine("EventDataTime: " + eventDataTime.ToString());
Console.WriteLine("EventDescription: " + eventDescription);
if (null != terminatedEventArgs.Exception)
{
Console.WriteLine("TerminatedEventArgs Exception Message: " + terminatedEventArgs.Exception.Message.ToString());
}
}
private void NotifyChannels(TrackingWorkflowEvent evt, WorkflowExecutor.WorkflowExecutionEventArgs e, WorkflowExecutor exec)
{
DateTime utcNow = DateTime.UtcNow;
int nextEventOrderId = this._broker.GetNextEventOrderId();
foreach (TrackingChannelWrapper wrapper in this._channels)
{
WorkflowExecutor.WorkflowExecutionTerminatingEventArgs args2;
WorkflowTrackingRecord record;
EventArgs eventArgs = null;
switch (evt)
{
case TrackingWorkflowEvent.Exception:
{
WorkflowExecutor.WorkflowExecutionExceptionEventArgs args3 = (WorkflowExecutor.WorkflowExecutionExceptionEventArgs)e;
eventArgs = new TrackingWorkflowExceptionEventArgs(args3.Exception, args3.CurrentPath, args3.OriginalPath, args3.ContextGuid, args3.ParentContextGuid);
goto Label_00BC;
}
case TrackingWorkflowEvent.Terminated:
args2 = (WorkflowExecutor.WorkflowExecutionTerminatingEventArgs)e;
if (args2.Exception == null)
{
break;
}
eventArgs = new TrackingWorkflowTerminatedEventArgs(args2.Exception);
goto Label_00BC;
case TrackingWorkflowEvent.Suspended:
eventArgs = new TrackingWorkflowSuspendedEventArgs(((WorkflowExecutor.WorkflowExecutionSuspendingEventArgs)e).Error);
goto Label_00BC;
default:
goto Label_00BC;
}
eventArgs = new TrackingWorkflowTerminatedEventArgs(args2.Error);
Label_00BC:
record = new WorkflowTrackingRecord(evt, utcNow, nextEventOrderId, eventArgs);
if (wrapper.GetTrackingProfile(exec).TryTrackInstanceEvent(evt, record))
{
wrapper.TrackingChannel.Send(record);
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
SqlTrackingQueryOptions options = new SqlTrackingQueryOptions();
options.WorkflowStatus = WorkflowStatus.Running;
SqlTrackingQuery query = new SqlTrackingQuery(ConfigurationManager.ConnectionStrings["workflows"].ConnectionString);
IList <SqlTrackingWorkflowInstance> workflows = query.GetWorkflows(options);
foreach (SqlTrackingWorkflowInstance workflow in workflows)
{
foreach (WorkflowTrackingRecord workflowEvent in workflow.WorkflowEvents)
{
TrackingWorkflowTerminatedEventArgs args = workflowEvent.EventArgs as TrackingWorkflowTerminatedEventArgs;
if (args != null)
{
Response.Write(workflow.WorkflowInstanceId + ": " + args.Exception.Message);
}
}
}
}