// The Application_Start and Application_End methods are special methods that do not represent HttpApplication events.
// ASP.NET calls them once for the lifetime of the application domain, not for each HttpApplication instance.
// see "ASP.NET Application Life Cycle Overview for IIS 5.0 and 6.0" https://msdn.microsoft.com/en-us/library/ms178473.aspx
// The Global.asax file is used in Integrated mode in IIS 7.0 much as it is used in ASP.NET in IIS 6.0.
protected void Application_Start()
{
Trace.TraceInformation("Global.asax: starting the http application domain (Application_Start).");
// The System.Diagnostics.Trace object gets listeners from Web.config/configuration/system.diagnostics/trace/listeners section.
// The below code copies Trace listeners to all AutoRegistratingTraceSource trace sources.
foreach (TraceListener item in Trace.Listeners)
{
if (!(item is DefaultTraceListener)) // The default trace listener is always in any TraceSource.Listeners collection.
{
Microsoft.Research.Science.FetchClimate2.AutoRegistratingTraceSource.RegisterTraceListener(item);
Trace.TraceInformation("TraceListener \"{0}\" registered for accepting data from all AutoRegistratingTraceSources", item);
}
}
// Initializing Scientific DataSet registration
if (!DataSetFactory.ContainsProvider("memory"))
{
DataSetFactory.Register(typeof(MemoryDataSet));
}
if (!DataSetFactory.ContainsProvider("ab"))
{
DataSetFactory.Register(typeof(AzureBlobDataSet));
}
Trace.TraceInformation("Scientific DataSet providers: " + string.Join(" ", DataSetFactory.GetRegisteredProviders()));
// Initialize JobsManager if necessary
bool firstInstance = RoleEnvironment.CurrentRoleInstance.Id == RoleEnvironment.CurrentRoleInstance.Role.Instances[0].Id;
// The first Frontend role instance initializes the database if necessary.
Microsoft.Research.Science.FetchClimate2.JobManager.InitializeJobTable(FrontendSettings.Current.JobsDatabaseConnectionString, firstInstance);
// Initialize ASP.NET WebAPI
// enabled by Microsoft.AspNet.WebApi.Tracing package
if (FrontendSettings.Current.EnableAspnetDiagnosticTrace)
{
var tw = new System.Web.Http.Tracing.SystemDiagnosticsTraceWriter();
tw.MinimumLevel = System.Web.Http.Tracing.TraceLevel.Debug;
tw.IsVerbose = true;
GlobalConfiguration.Configuration.Services.Replace(typeof(System.Web.Http.Tracing.ITraceWriter), tw);
}
AreaRegistration.RegisterAllAreas();
WebApiConfig.Register(GlobalConfiguration.Configuration);
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
//BundleConfig.RegisterBundles(BundleTable.Bundles);
// enable CORS
GlobalConfiguration.Configuration.MessageHandlers.Add(new CorsMessageHandler());
// configure formatters
var formatters = GlobalConfiguration.Configuration.Formatters;
//formatters.Remove(formatters.XmlFormatter);
formatters.Add(new PlainTextFormatter());
var jsonFormatter = GlobalConfiguration.Configuration.Formatters.OfType <JsonMediaTypeFormatter>().FirstOrDefault();
if (jsonFormatter == null)
{
string msg = "No json media formatter is available due to some internal error";
Trace.TraceError(msg);
throw new Exception(msg);
}
jsonFormatter.SerializerSettings.Converters.Add(new JsonCompliantNumberConverter());
}
