public AppLoaderFunc Create(AppLoaderFunc nextLoader)
{
return((name, errors) =>
{
Assembly assembly = null;
string error = null;
try
{
assembly = _host.GetEntryPoint();
if (assembly == null)
{
error = "Unable to resolve the application entry point.";
}
}
catch (Exception ex)
{
error = ex.Message;
}
if (assembly == null)
{
Trace.TraceError(error);
return app =>
{
app.Run(async context =>
{
context.Response.ContentType = "text/plain";
await context.Response.WriteAsync(error);
});
};
}
// determine actual startup class to load
if (string.IsNullOrEmpty(name))
{
var startupType = assembly.DefinedTypes.SingleOrDefault(t => string.Equals(t.Name, "Startup", StringComparison.OrdinalIgnoreCase));
if (startupType != null)
{
name = startupType.AssemblyQualifiedName;
}
}
// pass through to other loaders
var config = nextLoader.Invoke(name, errors);
// don't wrap null result
if (config == null)
{
return null;
}
// but do wrap configuration if startup was found
return app =>
{
app.Properties["host.AppName"] = assembly.GetName().Name;
var resolver = _host.GetService <Func <string, object> >(HostServices.ResolveAssemblyReference);
app.Properties[HostServices.ResolveAssemblyReference] = resolver;
config(app);
};
});
}
/// <summary>
/// Create a new chained app loader.
/// </summary>
/// <param name="nextLoader"></param>
/// <returns></returns>
public virtual AppLoaderFunc Create(AppLoaderFunc nextLoader)
{
var loader = new DefaultLoader(nextLoader, _activator.Activate);
return(loader.Load);
}
/// <summary>
/// Create a new chained app loader.
/// </summary>
/// <param name="nextLoader"></param>
/// <returns></returns>
public virtual AppLoaderFunc Create(AppLoaderFunc nextLoader)
{
var loader = new DefaultLoader(nextLoader, _activator.Activate);
return loader.Load;
}
