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Ian Upright-2
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Servlet Configuration

Ian Upright-2

Lets say I have a number of paths defined in my VisualWave configuration, and certain servlets are specified.  Now, for all other cases, I want to specify a default servlet to use.. 

Mainly I want this to trap errors, such as trying to access paths or parts of the site that are non-existant, etc.,but I don’t want to do this by trapping the errors, in the web configuration.

I want my own code to determine how to gracefully handle the errors.

 

How do I achieve this?


Thanks, Ian

 
Boris Popov, DeepCove Labs (SNN)
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RE: Servlet Configuration

Boris Popov, DeepCove Labs (SNN)
Have you tried setting a 'home' in your site.ini file?

-Boris

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-----Original Message-----
From: Ian Upright [mailto:[hidden email]]
Sent: Wednesday, May 03, 2006 12:30 PM
To: [hidden email]
Subject: Servlet Configuration

Lets say I have a number of paths defined in my VisualWave configuration,
and certain servlets are specified.  Now, for all other cases, I want to
specify a default servlet to use..  

Mainly I want this to trap errors, such as trying to access paths or parts
of the site that are non-existant, etc.,but I don't want to do this by
trapping the errors, in the web configuration.

I want my own code to determine how to gracefully handle the errors.

 

How do I achieve this?


Thanks, Ian

 


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Boris Popov, DeepCove Labs (SNN)
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RE: Servlet Configuration

Boris Popov, DeepCove Labs (SNN)
In reply to this post by Ian Upright-2
From the WebAppDevGuide.pdf,

Site-Specific Configuration Files

The following sections are defined for the site-specific INI files:

[configuration]

...
home = specify a file name for the home page
...

Hope this helps,

-Boris

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DeepCove Labs Ltd.
4th floor 595 Howe Street
Vancouver, Canada V6C 2T5

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-----Original Message-----
From: Boris Popov
Sent: Wednesday, May 03, 2006 1:43 PM
To: 'Ian Upright'
Subject: RE: Servlet Configuration

Not as a 'home' site, but a 'home' option within the site. You have your
web.ini that lists various sites via,

[sites]

wite = site.ini

Then within site.ini you can specify a default 'home' destination. Not sure
it'll do the trick, but worth a shot.

Cheers!

-Boris

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DeepCove Labs Ltd.
4th floor 595 Howe Street
Vancouver, Canada V6C 2T5

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-----Original Message-----
From: Ian Upright [mailto:[hidden email]]
Sent: Wednesday, May 03, 2006 1:35 PM
To: Boris Popov
Subject: RE: Servlet Configuration

So even if I did..  such as:

[sites]

        home = home-site.ini

Where does that get me?

Then in [logical-names] of home-site.ini, what would I put?

Ian

-----Original Message-----
From: Boris Popov [mailto:[hidden email]]
Sent: Wednesday, May 03, 2006 1:18 PM
To: Ian Upright; [hidden email]
Subject: RE: Servlet Configuration

Have you tried setting a 'home' in your site.ini file?

-Boris



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Alan Knight-2
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Re: Servlet Configuration

Alan Knight-2
In reply to this post by Ian Upright-2
The general facility to do this doesn't exist, although adding it has been on the task list for a while.

Boris suggests setting the home, but that only affects requests to the main page, not requests for non-existent files.

As it stands now, those are trapped in three places.
  - If the request looks like a server page (i.e. ends in .ssp, .jsp, or .asp) then it will be trapped in ASPHandler>>fileError:
  - If the requests looks like a servlet (i.e. the path is of form .../servlet/ClassName/...) then it will be trapped in ServletHandler>>newServlet, which normally will have the request served by MissingServlet.
  - If it looks like neither, it will be handled by WebSiteFile, which if it can't find the file will call notFoundAnswerFor:

So at the moment what you'd have to do is intercept those places by either modifying the code or subclassing and have it call your application.

At 03:30 PM 03/05/2006, Ian Upright wrote:
Lets say I have a number of paths defined in my VisualWave configuration, and certain servlets are specified.  Now, for all other cases, I want to specify a default servlet to use.. 
Mainly I want this to trap errors, such as trying to access paths or parts of the site that are non-existant, etc.,but I don’t want to do this by trapping the errors, in the web configuration.
I want my own code to determine how to gracefully handle the errors.
 
How do I achieve this?

Thanks, Ian
 

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Alan Knight [|], Cincom Smalltalk Development

"The Static Typing Philosophy: Make it fast. Make it right. Make it run." - Niall Ross
Ian Upright-2
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RE: Servlet Configuration

Ian Upright-2

Thanks Alan.  I looked into it briefly, but it looked like I might have to subclass umpteen dozen classes, just to get away from having to introduce overrides into the equation.  I thought I must be misunderstanding something obvious, thus I’m still seeking advice.  Perhaps the easiest would be to create some subclasses, and have a minimal number of overrides.  It does seem like a bit of an ugly mess to fix properly.  I believe I need to fix all three cases you’ve listed below.

 

Thanks, Ian

 

From: Alan Knight [mailto:[hidden email]]
Sent: Thursday, May 04, 2006 11:54 AM
To: Ian Upright; [hidden email]
Subject: Re: Servlet Configuration

 

The general facility to do this doesn't exist, although adding it has been on the task list for a while.

Boris suggests setting the home, but that only affects requests to the main page, not requests for non-existent files.

As it stands now, those are trapped in three places.
  - If the request looks like a server page (i.e. ends in .ssp, .jsp, or .asp) then it will be trapped in ASPHandler>>fileError:
  - If the requests looks like a servlet (i.e. the path is of form .../servlet/ClassName/...) then it will be trapped in ServletHandler>>newServlet, which normally will have the request served by MissingServlet.
  - If it looks like neither, it will be handled by WebSiteFile, which if it can't find the file will call notFoundAnswerFor:

So at the moment what you'd have to do is intercept those places by either modifying the code or subclassing and have it call your application.

At 03:30 PM 03/05/2006, Ian Upright wrote:

Lets say I have a number of paths defined in my VisualWave configuration, and certain servlets are specified.  Now, for all other cases, I want to specify a default servlet to use.. 
Mainly I want this to trap errors, such as trying to access paths or parts of the site that are non-existant, etc.,but I dont want to do this by trapping the errors, in the web configuration.
I want my own code to determine how to gracefully handle the errors.
 
How do I achieve this?

Thanks, Ian
 


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Alan Knight [|], Cincom Smalltalk Development

"The Static Typing Philosophy: Make it fast. Make it right. Make it run." - Niall Ross
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