/// <summary>
/// The Shutdown method is invoked to shutdown all of
/// the services that the engine is currently managing.
/// </summary>
public void Shutdown()
{
foreach (string key in _mapServices.Keys)
{
IVfxFixService service = _mapServices[key];
service.Shutdown();
}
}
/// <summary>
/// The Activate method starts all of the services that
/// have been instantiated by the engine.
/// </summary>
public void Activate(IVfxServices services)
{
this._mapServices.Clear();
// REC: Retrieve the engine configuration settings from
// the service container, by retrieving the reference to
// the IVfxSettings interface:
IVfxSettings configuration = services.GetService(typeof(IVfxSettings)) as IVfxSettings;
if (configuration != null)
{
// REC: Retrieve all of the session definitions from the
// application configuration document:
XPathNavigator xpn = configuration.Document.CreateNavigator();
XPathNodeIterator xpi = xpn.Select("/Engine/Sessions/Session");
while (xpi.MoveNext())
{
string sessionName = xpi.Current.GetAttribute("name", "");
if (!string.IsNullOrEmpty(sessionName))
{
string sessionType = xpi.Current.GetAttribute("type", "");
if (sessionType != null)
{
// REC: Create a new XML document that represents the
// service's specific configuration details:
XmlDocument svxConfiguration = new XmlDocument();
svxConfiguration.LoadXml(xpi.Current.OuterXml);
IVfxFixService service = null;
switch (sessionType)
{
case "FIX":
service = VfxFixServiceFactory.CreateService(services, svxConfiguration);
break;
case "FAST":
break;
}
this._mapServices.Add(sessionName, service);
}
}
}
}
foreach (string key in _mapServices.Keys)
{
IVfxFixService service = _mapServices[key];
service.Activate();
}
}
/// <summary>
/// The CreateService method is invoked to create a new instance
/// of a service, based on the configuration information that is
/// provided in the specified XML document.
/// </summary>
/// <param name="services"></param>
/// <param name="settings"></param>
/// <returns></returns>
public static IVfxFixService CreateService(IVfxServices services, XmlDocument settings)
{
IVfxFixService result = null;
XPathNavigator xpn = settings.CreateNavigator();
XPathNodeIterator xpi = xpn.Select("/Session/Protocol/Settings/Setting[@name='Fix.Session.Role']");
if ((xpi.Count == 1) && (xpi.MoveNext()))
{
string role = xpi.Current.GetAttribute("content", "");
if (!string.IsNullOrEmpty(role))
{
switch (role)
{
case "Client":
result = new VfxFixClientService();
break;
case "Server":
result = new VfxFixServerService();
break;
}
if (result != null)
{
result.Init(services, settings);
}
}
}
else
{
throw new ArgumentException("The setting 'Fix.Session.Role' was not found in the specified configuration.");
}
return(result);
}
