/// <summary>
/// Construct a message from the values.
/// </summary>
/// <param name="service">The servie the command is for.</param>
/// <param name="majorMessage">The MessageCode for this message.</param>
/// <param name="customMessage">The custom message code.</param>
/// <param name="data">A string for extra data.</param>
internal Message(ServiceCtl service, MessageCode majorMessage, int customMessage, string data)
{
this.service = service;
this.majorMessage = majorMessage;
this.customMessage = customMessage;
this.data = data;
}
/// <summary>
/// Stop services thread
/// </summary>
private void StopServicesThread()
{
// Set that the database is being shut down so that no more changes can be made.
logger.Info("The database is being shut down.");
Store.GetStore().ShutDown();
for (int i = serviceList.Count; i > 0; --i)
{
ServiceCtl svc = (ServiceCtl)serviceList[i - 1];
messageDispatcher(new StopMessage(svc));
}
servicesStarted.Reset();
servicesStopped.Set();
logger.Info("Services stopped.");
stopThread = null;
}
/// <summary>
/// Construct a Message from a string.
/// </summary>
/// <param name="service">The servie the command is for.</param>
/// <param name="message">The string to parse.</param>
internal Message(ServiceCtl service, string message)
{
this.service = service;
string[] args = message.Split(seperator, 4);
if (args.Length < 3 || !args[0].Equals(messageSignature))
{
throw new InvalidMessageException();
}
if (args.Length == 4)
{
data = args[3];
}
customMessage = int.Parse(args[2]);
majorMessage = (MessageCode)Enum.Parse(typeof(MessageCode), args[1]);
}
/// <summary>
/// Dispatching the message
/// </summary>
/// <param name="msg">Message details</param>
private void messageDispatcher(Message msg)
{
ServiceCtl svcCtl = msg.service;
try
{
lock (this)
{
switch (msg.MajorMessage)
{
case MessageCode.Start:
if ((svcCtl.State == Simias.Service.State.Stopped) && svcCtl.Enabled)
{
try
{
svcCtl.Start();
}
catch (Exception ex)
{
if (RunAsServer == false || String.Compare(ex.Message, "Failed to create Flaim DB.") != 0)
{
throw ex;
}
else
{
logger.Debug("Exception Message {0} recieved", ex.Message);
logger.Debug("Exiting from the current process, as process failed to Open FLAIM Database ");
StopServices();
Environment.Exit(-1);
}
}
}
break;
case MessageCode.Stop:
if (svcCtl.state == State.Running || svcCtl.state == State.Paused)
{
svcCtl.Stop();
}
break;
case MessageCode.Pause:
if (svcCtl.state == State.Running)
{
svcCtl.Pause();
}
break;
case MessageCode.Resume:
if (svcCtl.state == State.Paused)
{
svcCtl.Resume();
}
break;
case MessageCode.Custom:
svcCtl.Custom(msg.CustomMessage, msg.Data);
break;
}
}
}
catch (Exception ex)
{
logger.Error(ex, ex.Message);
}
}
internal CustomMessage(ServiceCtl service, int message, string data) :
base(service, MessageCode.Custom, message, data)
{
}
internal ResumeMessage(ServiceCtl service) :
base(service, MessageCode.Resume, 0, null)
{
}
internal PauseMessage(ServiceCtl service) :
base(service, MessageCode.Pause, 0, null)
{
}
internal StopMessage(ServiceCtl service) :
base(service, MessageCode.Stop, 0, null)
{
}