internal static void RunOnce()
{
// this code will execute once per request
// we make sure that only one request will run the upgrade
// we do not block the other requests while that one is running
// and if the upgrade fails (throws)... have to restart the app
// if for any reason the context is null, maybe that's a client-side
// request (for an image, javascript, whatever) but anyway we cannot
// do anything and have to wait for a proper request.
if (UmbracoContext.Current == null)
{
return;
}
// sets to 1 and return the previous value - run only if zero
if (Interlocked.Exchange(ref _ran, 1) > 0)
{
return;
}
var app = UmbracoContext.Current.HttpContext.ApplicationInstance;
LogHelper.Info <YolApplication>("Run (once).");
YolManager.ExecuteInitialized(app, ApplicationContext.Current);
LogHelper.Info <YolApplication>("Done running (once).");
}
/// <summary>
/// Creates and registers an instance of the <see cref="YolManager"/> class with a name and a user login.
/// </summary>
/// <param name="name">The name of the manager.</param>
/// <param name="login">The login of the user to impersonate while running the state machine.</param>
/// <returns>The instance of the <see cref="YolManager"/> class.</returns>
/// <exception cref="ArgumentException"><paramref name="name"/> and/or <paramref name="login"/> is <c>null</c> or empty.</exception>
/// <exception cref="InvalidOperationException">A manager with that name has already been initialized.</exception>
public static YolManager Create(string name, string login)
{
lock (Managers)
{
if (Managers.ContainsKey(name))
{
throw new InvalidOperationException(string.Format("A manager named \"{0}\" has already been initialized.", name));
}
return(Managers[name] = new YolManager(name, login));
}
}
