Problem making an Interface

[PGilbert]

I am evaluating DotNetBrowser and I need to make the following interface as described here. The interface looks like this:

Code: Select all

    public class HttpsHandler : IProtocolHandler
    {
        //This method should provide the response for the specified request
        public IUrlResponse Handle(IUrlRequest request)
        {
            string htmlContent = "Request Url: " + request.Url + "\n";
            return new UrlResponse(Encoding.UTF8.GetBytes(htmlContent));
        }
    }

The following code does not work:

      :Interface HttpsHandler

    ∇ urlResponse←IUrlResponse request
      :Implements Method IProtocolHandler
     
      ⎕USING∪←⊂'DotNetBrowser.Protocols,C:\DotNetBrowser32.dll'
     
      ⎕←request.url
     
      urlResponse←'to do'
    ∇

:EndInterface

The error is:
declared interface member not found. Either the member does not exist or the function syntax is incompatible ":Implements Method IProtocolHandler".

In the WS with the same ⎕USING IProtocolHandler is found (the complete name is: DotNetBrowser.Protocols.IProtocolHandler).

What it is that I am doing wrong? Thanks in advance.

[JohnD|Dyalog]

Hello Pierre,

I've not tried your example, but I suspect you just need the function name:

Code: Select all

:Implements Method IProtocolHandler.Handle

Best Regards
John Daintree.

[JohnD|Dyalog]

Hello again Pierre,

There are a couple of key issues here.
* You need to define a class that implements the interface. Your code is defining an interface
* You need to tweak your :Implements statement as per my previous suggestion.
* You need to "emit" the code as a .NET assembly.
** The interpreter does not create MSIL and .NET Metadata for classes as you close the editor.
((In the past you may have used the “Export…” item on the session “file..” menu to create . NET assembly as a dll. Also on the session menu is “Export to Memory…”, which creates the assembly “in memory”. This is required if you want to use the .Net nature of a class without creating a file (which is what you require in this case). 2100⌶ performs this “Export to memory” without the need to select the menu item.

This has worked for me with the following code:

      ∇ test
[1]
[2]    ⎕USING←'DotNetBrowser,e:\downloads\DotNetBrowser.Chromium32\DotNetBrowser32.dll'
[3]
[4]    2100⌶0
[5]
[6]    browser←BrowserFactory.Create ⍬
[7]
[8]    browser.Context.ProtocolService.Register('https'(⎕NEW HttpsHandler))
     ∇

:Class HttpsHandler : IProtocolHandler
:using ,
:using DotNetBrowser.Protocols,e:\downloads\DotNetBrowser.Chromium32\DotNetBrowser32.dll

    ∇ urlResponse←Handle request
      :Implements Method IProtocolHandler.Handle
      :Signature IUrlResponse←Handle IUrlRequest
     
     
      ⎕←request.url
     
      urlResponse←'to do'
    ∇

:EndClass

[PGilbert]

Many thanks John, it is working now.