run all modules of a catalog (prism)

Question

hello, i'm using the desktop library of prism.

what i want is to get modules in a directory and then, run them.

I do like that:

DirectoryModuleCatalog catalog = new DirectoryModuleCatalog();
catalog.ModulePath = @"C:\Users\Raph\Documents\Visual Studio 2010\Projects\LibraryLoad\LibraryLoad\Modules";

I checked, the modules are loaded in the catalog. Example of a module:

public class SendEmailClass : IModule
    {
        public void SendEmail()
        {
            MailMessage mail = new MailMessage();
            mail.From = new MailAddress("**", "moi");
            mail.Subject = "Report"; //manage generated subject

            mail.To.Add("***");

            System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient("smtp.gmail.com");
            smtp.Port = 57;
            smtp.EnableSsl = true; //depending of the smtp server
            NetworkCredential cred = new NetworkCredential("***", "***");
            smtp.Credentials = cred;
            smtp.Send(mail);
        }

        public void Initialize()
        {
            SendEmail();
        }
    }

But then i want to run them (launch their Initialize()) but i don't find it. I want to run the whole catalog. someone has an idea ? I tried catalog.Initialize(), catalog.Validate() or catalog.Load()

Answer 1

Your code looks correct, I was under the impression that you had to override the GetModuleCatalog() method in your Bootstrapper class in order to do this. Here is a working example of a pretty straight forward Bootstrapper that loads modules from a modules directory.

public class Bootstrapper : UnityBootstrapper
{
    private const string MODULE_FOLDER = @".\modules";

    protected override IModuleCatalog GetModuleCatalog()
    {
        DirectoryModuleCatalog catalog = new DirectoryModuleCatalog() { ModulePath = MODULE_FOLDER };
        return catalog;
    }
}

Update

It is probably possible to not use a bootstrapper and load your modules, but I do not see why you would not take advantage of the UnityBootstrapper class, it does the work for you.

Bootstrapper bootStrapper = new Bootstrapper();
bootStrapper.Run();

Your modules will be loaded. I myself have never done this without using the bootstrapper because it is very straightforward.

Answer 2

Hi Raphael,

As jsmith said, the default bootstrapper provides the heavy lifting for the configuration that you would otherwise perform yourself. If you don't have a Shell, simply create a custom bootstrapper that skips over that part.

In case you don't want to use a bootstrapper by any means, you can just instantiate the ModuleManager class, passing the ModulesCatalog as one of the parameters and call the ModuleManager's Run method.

As I said before, the above is done by the bootstrapper for you. I hope this helps.

Thanks, Damian

Answer 3

OK, I'm sorry but i'm lost and i don't find a solution to my problem. Let me explain precisely what i have and what i want:

I have a library model. Every library are based on this model :

public class SendEmailClass : IModule, IScheduledItem 

So they are a Module class and also a ScheduledItem class.

What i want to do is to load all the libraries, and add them in a list:

public override List<IScheduledItem> CreateScheduledItems()
    {
        List<IScheduledItem> result = new List<IScheduledItem>();

        DirectoryModuleCatalog catalog = new DirectoryModuleCatalog();
        catalog.ModulePath = @"C:\Users\Raph\Documents\Visual Studio 2010\Projects\LibraryLoad\LibraryLoad\Modules";
        catalog.Load();
        foreach (IModule mod in catalog.Modules)
        {
            try
            {
                result.Add((IScheduledItem)mod);
                SetupTimer((IScheduledItem)mod);
            }
            catch (Exception x)
            {
                Console.WriteLine(x.Message);
            }
        }

I know this code can't work. It's just to give you an idea of what i am trying to do. Is this possible with this framework ? or do you have an idea of how i could do that ?

Thank you