/// <summary>
/// Stops this instance of the RequestController if it has not already been stopped.
/// </summary>
/// <remarks>Stops this instance of the RequestController if it is not already stopped by calling Stop() on each of the RequestManagers being controlled.</remarks>
public void Stop()
{
// If we're running, stop each of the controlled RequestManagers
if (isRunning)
{
try
{
// Stop each of the request managers
foreach (RequestManager requestManager in requestManagers)
{
// Stop the request manager
requestManager.Stop();
}
// Log that we've stopped
LogEntry logEntry = new LogEntry(
"The Request Controller has stopped.",
"Request Management",
0,
0,
TraceEventType.Stop,
"Request Management",
null);
// Write to the log
Logger.Write(logEntry);
}
catch (Exception ex)
{
// Store the last error
lastError = ex;
// Log that we've failed
if (ExceptionPolicy.HandleException(ex, "Request Management"))
{
// Rethrow the exception
throw;
}
}
finally
{
// Clear existing config
requestManagers.Clear();
customSettings.Clear();
validationErrors.Clear();
// We're not running
isRunning = false;
// If we have a delegate for status events, call it
if (null != StatusChanged)
{
// Call the delegate asynchronously
StatusChanged.BeginInvoke(RequestControllerStatus.Stopped, lastError, null, null);
}
}
}
}
private void RunThread(object obj)
{
IsRunning = true;
StatusChanged?.BeginInvoke(this, new EventArgs(), null, null);
try
{
Run();
}
finally
{
IsRunning = false;
StatusChanged?.BeginInvoke(this, new EventArgs(), null, null);
}
}
/// <summary>
/// Starts this instance of the RequestController if it is not already running.
/// </summary>
/// <remarks>Starts this instance of the RequestController if it is not already running by calling Start()
/// on each of the RequestManagers being controlled.</remarks>
public void Start()
{
// Enter the controller
Monitor.Enter(this);
// Make sure we're not already running
if (!isRunning)
{
try
{
// We're running, do this now so we can tidy up if it goes wrong
isRunning = true;
// Get the path the the executing assembly
string assemblyPath = Assembly.GetExecutingAssembly().Location;
// Load the request manager configuration (Discovery.RequestManager.Config)
LoadConfiguration(assemblyPath.Replace(".dll", ".xml"));
// See if we're tracing
if (this.Trace)
{
// Log debug information (using HTML file format)
Logger.Write(new LogEntry(
"Loading configuration file <b>" + assemblyPath.Replace(".dll", ".xml") + "</b>",
"Request Management Trace",
0,
0,
TraceEventType.Information,
"Request Management Trace",
null));
}
// Start each of the request managers loaded from the config
foreach (RequestManager requestManager in requestManagers)
{
// Start the request manager
requestManager.Start();
}
// If we have a delegate for status events, call it
if (null != StatusChanged)
{
// Call the delegate asynchronously
StatusChanged.BeginInvoke(RequestControllerStatus.Started, lastError, null, null);
}
// Log that we've started ok
LogEntry logEntry = new LogEntry(
"The Request Controller has started.",
"Request Management",
0,
0,
TraceEventType.Start,
"Request Management",
null);
// Write to the log
Logger.Write(logEntry);
}
catch (Exception ex)
{
// Store the exception
lastError = ex;
// Tidy up
this.Stop();
// Log that we failed to start
if (ExceptionPolicy.HandleException(ex, "Request Management"))
{
// Rethrow the exception
throw;
}
}
finally
{
// Leave the controller
Monitor.Exit(this);
}
}
}
