RE: [FRIDAY] You might be a Wally if ...

[Wiebe de Jong]

... you are always seen with a coffee cup and people start handing you
Dilbert clippings

-Original Message-
From: Emmanouil Batsis [mailto:[EMAIL PROTECTED] 
Sent: Friday, January 20, 2006 7:46 AM
To: Struts Users Mailing List
Subject: Re: [FRIDAY] You might be a Wally if ...

David Delbecq wrote:

>... you wander everyday in corridors, asking everyone around if there are
any meetings today.
>  
>

...after you got into this when you delivered a pizza to the company and 
someone grabbed you to take his place in a meeting. Especially if you 
forgot to get paid for the pizza and obvious way to fix the situation is 
to climb your way up the ladder to manage and get the bill through 
company expences.

Manos

>Le Vendredi 20 Janvier 2006 16:05, Ted Husted a écrit :
>  
>
>>... your petname for seminars and user group meetings is "naps and
snacks".
>>
>>-Ted.
>>
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>>
>>
>>
>>
>
>  
>


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RE: [OT] Webapp help framework?

[Wiebe de Jong]

I need to read these messages more fully before I respond. ;-(

Wiebe

-Original Message-
From: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
Sent: Thursday, January 12, 2006 3:14 PM
To: 'Struts Users Mailing List'
Subject: RE: [OT] Webapp help framework?

Actually, when I put 'java help' into Google I came up with the JavaHelp
System at http://java.sun.com/products/javahelp/ 

Wiebe

-Original Message-
From: Wendy Smoak [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, January 10, 2006 7:03 AM
To: Struts Users Mailing List
Subject: [OT] Webapp help framework?

A coworker is looking for a framework like "JavaHelp" for use with a
Struts 1.2 webapp.  (Apparently JavaHelp has a webapp component, but
it can't be accessed with an https:// URL, which is required.)

Putting 'java help' into Google isn't very useful, so I thought I'd
call on the collective wisdom of the list for suggestions. :)

Thanks!
--
Wendy

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RE: [OT] Webapp help framework?

[Wiebe de Jong]

Actually, when I put 'java help' into Google I came up with the JavaHelp
System at http://java.sun.com/products/javahelp/ 

Wiebe

-Original Message-
From: Wendy Smoak [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, January 10, 2006 7:03 AM
To: Struts Users Mailing List
Subject: [OT] Webapp help framework?

A coworker is looking for a framework like "JavaHelp" for use with a
Struts 1.2 webapp.  (Apparently JavaHelp has a webapp component, but
it can't be accessed with an https:// URL, which is required.)

Putting 'java help' into Google isn't very useful, so I thought I'd
call on the collective wisdom of the list for suggestions. :)

Thanks!
--
Wendy

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RE: MailReader demo app is rewritten with Struts Dialogs

[Wiebe de Jong]

Hey Ted,

What would be an appropriate tool for creating the UML diagrams for
MailReader? I use Rose for my work, but I think documentation for open
source projects needs to be readable by everyone. 

I found this recent article, but it doesn't help much.
Open source UML editors lag proprietary leader
http://programming.newsforge.com/article.pl?sid=05/08/22/1421216

Wiebe

-Original Message-
From: Ted Husted [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 22, 2005 4:51 AM
To: Struts Users Mailing List
Subject: Re: MailReader demo app is rewritten with Struts Dialogs

How about if we start a new SourceForge project for alternative
MailReaders? I'd still like to do one for FormDef, for example, but I
don't want to saddle the Apache team with too many MailReader
implementations. :)

To get started, I've setup an area to host some project documentation
about MailReader at the "Struts University" site:

* http://opensource2.atlassian.com/confluence/oss/display/STRUTS/MailReader

I'd like to do a set of fully-dressed Use Cases for MailReader, both
to shore up the Classic implementation, and to make it easier for
people to write alternative MailReaders, as Michael has done.

To validate the MailReader implementations, we can use a standard set
of  UI test in Web Canoo. Then we can define a MailReader application
as an application that passes the UI validation tests.

Next, I could setup a new SourceForge site to host alternative
MailReader implementations. The Struts SourceForge site is already a
bit busy, and I think this project merits its own site.

Thoughts?

-Ted.
http://www.husted.com/poe/


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[solved]RE: Nested error

[Wiebe de Jong]

I never did figure out how to fix the exception I was getting, but I found
an alternate implementation that works. However, my business logic is built
on ArrayList and I didn't want to change that. Thanks to the magic of
getters and setters, I was able to do both:

-
Form snippet:

private ArrayList items;
public Object getItems(int index) { return items.get(index); }
public Object[] getItems() { return items.toArray(); }
public void setItems(int index, Object item) { items.set(index, item); }
public void setItems(Object[] items) { }

public ArrayList getItemlist() { return items; }
public void setItemlist(ArrayList items) { this.items = items; }
-

I noticed that setItems() is never called so I never bothered to implement
it. Everything is now working fine.

Thanks for your time.

Wiebe

-Original Message-
From: Michael Jouravlev [mailto:[EMAIL PROTECTED] 
Sent: Friday, September 09, 2005 10:22 AM
To: Struts Users Mailing List
Subject: Re: Nested error

On 9/9/05, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> I just started using nested tags on a page, and when I submit it, Struts
> causes the following error:
> 
> HTTP ERROR: 503 Service Unavailable
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
> RequestURI=/ecom/productSetUpdateSubmit.do
> 
> This happens before even getting to my action. The form is displayed
> correctly with several items in the collection.
> 
> JSP snippet:
> 
>  type="com.mycompany.ecom.dao.ProductSetItem">
> 
>   Item:
>styleClass="form"/>
>styleClass="form"/>
> 
> 
> 
> Form snippet:
> 
> private Collection items;
> public Collection getItems() { return items; }
> public void setItems(Collection items) { this.items = items; }
> 
> 
> I'm running Struts 1.1 on JBoss-2.4.3_Jetty-3.1.3-1 with JDK 1.3.1_11
> 
> Any ideas? 

   How do I get past this problem?

Initializing "items" might help.

Michael.

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RE: Nested error

[Wiebe de Jong]

I am definitely using session scope.

Struts-config snippet:

  
  
  
  
  
  

Action snippet:

private ActionForward doProductSetUpdate(ActionMapping mapping,
ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws
Exception {
log.debug(":doProductSetUpdate");
HttpSession session = request.getSession();
// get productSetID from parameter
String productSetIDstr = request.getParameter("productSetID");
int productSetID = ((productSetIDstr == null) ? 0 :
Integer.parseInt(productSetIDstr));
// get set
ProductBD productBD = new ProductBD();
ProductSetWithItems setWithItems =
productBD.findSetByIDWithItems(productSetID);
// save set in session
session.setAttribute("productSetWithItems", setWithItems);
// update form
ProductSetForm productSetForm = (ProductSetForm) form;
BeanUtils.copyProperties(productSetForm, setWithItems);
// Forward control to the success URI specified in struts-config.xml
return (mapping.findForward("success"));
}

Does BeanUtils.copyProperties do a shallow or deep copy? Also, it is copying
from an ArrayList to a Collection.

Wiebe

-Original Message-
From: Michael Jouravlev [mailto:[EMAIL PROTECTED] 
Sent: Friday, September 09, 2005 11:18 AM
To: Struts Users Mailing List
Subject: Re: Nested error

It was initialized when JSP was prepared, then response was returned
to the browser. If you use formbean with request scope, it is gone.
When you hit the submit button, you initiate new request, it which the
form is recreated, and this field may not be initialized.

So, the fact that you were able to render a page means nothing, if you
use request scope for formbean. Use session scope or reinitialize
formbean each time. Caution: if you use request scope, then reset()
may be not called (not sure on that), so initialize the form in the
consructor.

Michael.

On 9/9/05, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> Michael,
> 
> The collection was initialized. In fact, it had several items in it and
the
> form had successfully displayed, as I mentioned.
> 
> The error occurs when I hit the submit button, whether I changed any
values
> or not.
>
>>   >   ...
>>   IndexOutOfBoundsException: Index: 0, Size: 0
>>   ...
>>   private Collection items; <--- null

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RE: Nested error

[Wiebe de Jong]

Michael,

The collection was initialized. In fact, it had several items in it and the
form had successfully displayed, as I mentioned.

The error occurs when I hit the submit button, whether I changed any values
or not.

Wiebe

-Original Message-
From: Michael Jouravlev [mailto:[EMAIL PROTECTED] 
Sent: Friday, September 09, 2005 10:22 AM
To: Struts Users Mailing List
Subject: Re: Nested error

On 9/9/05, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> I just started using nested tags on a page, and when I submit it, Struts
> causes the following error:
> 
> HTTP ERROR: 503 Service Unavailable
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
> RequestURI=/ecom/productSetUpdateSubmit.do
> 
> This happens before even getting to my action. The form is displayed
> correctly with several items in the collection.
> 
> JSP snippet:
> 
>  type="com.mycompany.ecom.dao.ProductSetItem">
> 
>   Item:
>styleClass="form"/>
>styleClass="form"/>
> 
> 
> 
> Form snippet:
> 
> private Collection items;
> public Collection getItems() { return items; }
> public void setItems(Collection items) { this.items = items; }
> 
> 
> I'm running Struts 1.1 on JBoss-2.4.3_Jetty-3.1.3-1 with JDK 1.3.1_11
> 
> Any ideas? 

   How do I get past this problem?

Initializing "items" might help.

Michael.

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Nested error

[Wiebe de Jong]

I just started using nested tags on a page, and when I submit it, Struts
causes the following error:

HTTP ERROR: 503 Service Unavailable
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
RequestURI=/ecom/productSetUpdateSubmit.do

This happens before even getting to my action. The form is displayed
correctly with several items in the collection.

JSP snippet:



  Item:
  
  



Form snippet:

private Collection items;
public Collection getItems() { return items; }
public void setItems(Collection items) { this.items = items; }


I'm running Struts 1.1 on JBoss-2.4.3_Jetty-3.1.3-1 with JDK 1.3.1_11

Any ideas? How do I get past this problem?

Wiebe


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RE: Technique for undetermined time of processing - progress bar

[Wiebe de Jong]

Yes, that is what I did when I implemented it.

Wiebe

-Original Message-
From: David Erickson [mailto:[EMAIL PROTECTED] 
Sent: Monday, July 25, 2005 9:52 AM
To: 'Struts Users Mailing List'
Subject: RE: Technique for undetermined time of processing - progress bar

Thanks for the tip.  That one actually is using javascript to refresh the
page, but you could just as easily do a meta tag to refresh the page as
well.

-David

> -Original Message-
> From: Wiebe de Jong [mailto:[EMAIL PROTECTED]
> Sent: Monday, July 25, 2005 10:35 AM
> To: 'Struts Users Mailing List'
> Subject: RE: Technique for undetermined time of processing - progress bar
> 
> Here is a graphical progress bar that doesn't use AJAX or JavaScript.
> 
> http://www.onjava.com/lpt/a/3886
> 
> Wiebe
> 
> -Original Message-
> From: David Erickson [mailto:[EMAIL PROTECTED]
> Sent: Monday, July 25, 2005 7:26 AM
> To: 'Struts Users Mailing List'
> Subject: RE: Technique for undetermined time of processing - progress bar
> 
> Ya I think the ajax thing is a great idea for the main work.. but on the
> offchance someone doesn't have javascript enabled ill have to fall back to
> a
> not as graphically nice implementation.
> 
> 
> 
> -David
> 
> 
> 
>   _
> 
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]
> Sent: Monday, July 25, 2005 6:14 AM
> To: Struts Users Mailing List
> Cc: 'Struts Users Mailing List'
> Subject: RE: Technique for undetermined time of processing - progress bar
> 
> 
> 
> Unfortunately, any AJAX implementation will require JavaScript. You can
> replace this with a standard JSP implementation, but you will have a lot
> of
> "Flicker" as your page updates. You will also have to keep all information
> that is displayed on your page in the session or request which can chew up
> your bandwidth on heavly used sites.
> 
> Inactive hide details for "David Erickson" <[EMAIL PROTECTED]>"David
> Erickson" <[EMAIL PROTECTED]>
> 
> 
> 
> 
> "David Erickson" <[EMAIL PROTECTED]>
> 
> 07/23/2005 09:52 AM
> 
> 
> Please respond to
> "Struts Users Mailing List" 
> 
> 
> 
> 
> To
> 
> 
> "'Struts Users Mailing List'" 
> 
> 
> 
> 
> cc
> 
> 
> 
> 
> 
> 
> Subject
> 
> 
> RE: Technique for undetermined time of processing - progress bar
> 
> 
> 
> 
> 
> 
> 
> 
> 
> What If the end user has javascript disabled?  Does DWR handle that
> cleanly
> or are you out of luck?
> 
> 
> 
> -David
> 
> 
> 
>  _
> 
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]
> Sent: Friday, July 22, 2005 1:55 PM
> To: Struts Users Mailing List
> Cc: 'Struts Users Mailing List'
> Subject: Re: Technique for undetermined time of processing - progress bar
> 
> 
> 
> I use AJAX to kick off the process. For this case You can send an AJAX
> request to get the time, once recieved display a div that will contain the
> "progress bar" and submit a second request to run the actual process. On
> completion, you can forward the page to the next url.
> 
> If you use DWR and can just display an anamated gif or flash movie, then
> you
> can use the built in pre and post process hooks. The preprocess would
> display the image and the post would hide it. on completion of the process
> have the page submit to the next screen.
> 
> Inactive hide details for "David Erickson" <[EMAIL PROTECTED]>"David
> Erickson" <[EMAIL PROTECTED]>
> 
> 
> 
> 
> "David Erickson" <[EMAIL PROTECTED]>
> 
> 07/22/2005 02:41 PM
> 
> 
> Please respond to
> "Struts Users Mailing List" 
> 
> 
> 
> 
> To
> 
> 
> "'Struts Users Mailing List'" 
> 
> 
> 
> 
> cc
> 
> 
> 
> 
> 
> 
> Subject
> 
> 
> Technique for undetermined time of processing - progress bar
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Sorry for the vague subject.  I've got a situation where I need to do some
> processing before moving a user to a specific page.  The processing could
> be
> very fast or very long.  I'd like to have some kind of a progress bar type
> meter than can show how much time is left.  I will know for sure the exact
> time it will take to process, and I can retrieve that at the beginning of
> the processing.  When processing is done I want to go to a different url.
> Has anyone done anything like this before, and if so what were the best
> ways
> you found of accomplishing this?
> 
> Thanks,
> David
> 
> 
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
> 
> 
> 
> 
> 
> 
> 
> -
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RE: Technique for undetermined time of processing - progress bar

[Wiebe de Jong]

Here is a graphical progress bar that doesn't use AJAX or JavaScript.

http://www.onjava.com/lpt/a/3886 

Wiebe

-Original Message-
From: David Erickson [mailto:[EMAIL PROTECTED] 
Sent: Monday, July 25, 2005 7:26 AM
To: 'Struts Users Mailing List'
Subject: RE: Technique for undetermined time of processing - progress bar

Ya I think the ajax thing is a great idea for the main work.. but on the
offchance someone doesn't have javascript enabled ill have to fall back to a
not as graphically nice implementation.

 

-David

 

  _  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] 
Sent: Monday, July 25, 2005 6:14 AM
To: Struts Users Mailing List
Cc: 'Struts Users Mailing List'
Subject: RE: Technique for undetermined time of processing - progress bar

 

Unfortunately, any AJAX implementation will require JavaScript. You can
replace this with a standard JSP implementation, but you will have a lot of
"Flicker" as your page updates. You will also have to keep all information
that is displayed on your page in the session or request which can chew up
your bandwidth on heavly used sites.

Inactive hide details for "David Erickson" <[EMAIL PROTECTED]>"David
Erickson" <[EMAIL PROTECTED]>




"David Erickson" <[EMAIL PROTECTED]> 

07/23/2005 09:52 AM 


Please respond to
"Struts Users Mailing List" 




To


"'Struts Users Mailing List'" 




cc






Subject


RE: Technique for undetermined time of processing - progress bar

 







What If the end user has javascript disabled?  Does DWR handle that cleanly
or are you out of luck?



-David



 _  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] 
Sent: Friday, July 22, 2005 1:55 PM
To: Struts Users Mailing List
Cc: 'Struts Users Mailing List'
Subject: Re: Technique for undetermined time of processing - progress bar



I use AJAX to kick off the process. For this case You can send an AJAX
request to get the time, once recieved display a div that will contain the
"progress bar" and submit a second request to run the actual process. On
completion, you can forward the page to the next url.

If you use DWR and can just display an anamated gif or flash movie, then you
can use the built in pre and post process hooks. The preprocess would
display the image and the post would hide it. on completion of the process
have the page submit to the next screen.

Inactive hide details for "David Erickson" <[EMAIL PROTECTED]>"David
Erickson" <[EMAIL PROTECTED]>




"David Erickson" <[EMAIL PROTECTED]> 

07/22/2005 02:41 PM 


Please respond to
"Struts Users Mailing List" 




To


"'Struts Users Mailing List'" 




cc






Subject


Technique for undetermined time of processing - progress bar









Sorry for the vague subject.  I've got a situation where I need to do some
processing before moving a user to a specific page.  The processing could be
very fast or very long.  I'd like to have some kind of a progress bar type
meter than can show how much time is left.  I will know for sure the exact
time it will take to process, and I can retrieve that at the beginning of
the processing.  When processing is done I want to go to a different url.
Has anyone done anything like this before, and if so what were the best ways
you found of accomplishing this?

Thanks,
David


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RE: Themes

[Wiebe de Jong]

Use CSS. Use one JSP/tile to get your content together, then based on the
company setting, choose a CSS style sheet to go with it. The style sheet
would contain your graphics, fonts, layouts, etc.

Take a look at http://www.csszengarden.com/ to see the possibilities of this
approach.

Wiebe

-Original Message-
From: Martin Ravell [mailto:[EMAIL PROTECTED] 
Sent: Monday, June 13, 2005 5:22 PM
To: Struts User Mailing List
Subject: Themes

I have a requirement to build a 'Themes' (think 'skins') capability into the
UI of my Struts app and would just like to poll the list for ideas on the
best way to approach such a mechanism. Multiple customers use the same app
but they need to be presented with a view that meets their specific
requirements. For example graphics, fonts and even layout would be specific
to the user's login (actually their company/organization which is stored in
the database).

 

Now, for ease of use I guess something relying on CSS would be a way to go.
Since I already use stylesheets for most HTML elements specifying a
particular theme's stylesheet would not be hard. 

 

The tricky part is that I'd also like to be able to specify different jsp
pages (mainly for Tiles layouts) in case I need to modify the layout beyond
what is easy to do with CSS. Ultimately I may well have functionality in the
app itself that is specific to a given customer so this concept should deal
with handling customisation to that level well.

 

Ideally I'd like to have a concept of an 'alternate source' directory that
is used by the app to load it's jsp. i.e. the app first looks under the
appropriate alternate directory for a jsp and uses the page it finds there
if it exists but falls back to the standard jsp dir if there is no
alternate. This would mean that I could create a theme with only those pages
that need to be modified rather than copying and modifying the entire jsp
source tree.

 

If anyone has had to implement something along these lines I'd love to hear
from you. What sort of mechanisms have you found work well within the
structure of a Struts app? My architecture is Struts, Tiles, Spring and
Hibernate if you are interested but I'm thinking that it's the Struts area
that I'll be looking at mostly for this job.

 

Are there any Struts sub-projects that touch on this sort of thing?

 

 

 

Regards

Marty

 

 

 



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output device support

[Wiebe de Jong]

How would I go about supporting multiple output devices, such as browsers,
Blackberries, phones and various PDA devices? Are there any Struts
extensions out there for this? Or should I investigate Sitemesh or Cocoon?

 

Any case studies or actual code would be greatly appreciated.

 

Thanks

 

Wiebe de Jong

 

RE: How to get form from JSP

[Wiebe de Jong]

The form is already defined as a bean. You can access it using the name you
gave it in your struts-config file.

i.e. mailto:[EMAIL PROTECTED] 
Sent: Thursday, April 21, 2005 9:16 AM
To: Struts Users Mailing List
Subject: How to get form from JSP

Hi all,

Is there a way to get the ActionForm obj in the JSP instead of using 
 tag

Thanks!

Billy 


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RE: Cron type jobs in struts

[Wiebe de Jong]

I've had Quartz in production for a year and it is doing great. Definitely a
great scheduler.

Wiebe

-Original Message-
From: Dave Newton [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 12, 2005 8:09 AM
To: Struts Users Mailing List
Subject: Re: Cron type jobs in struts

Brian McGovern wrote:

>I have a need to run nightly jobs that inspect my data and do certain
things based on what it finds..  Now i was goin to write some java classes
to be invoked by cron.  But I've never done this before in java and wonder
if there is a better way to approach this? any thoughts?
>  
>
Now I'm going to check out Quartz, but we've used jcrontab in the past.

Dave



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Jasper problem

[Wiebe de Jong]

I've been struggling with a problem for two days and I am hoping somebody
here might have an idea.

I am using Struts 1.1 with tiles and have a long JSP with about 30 form
fields, some with option lists which are stored at the application level.

Everything is working fine, then I make one change. I go from:



to








Now all of a sudden I get this error in a totally unrelated area:

...
Azerbaijan
Bahrain
Bangladesh
Burundi
Belgium
<[ServletException in:/tiles/trial_download_body.jsp] No selector attribute
(cookie/header/name/parameter) was specified'
...

Note how the options list is cut off right in the middle. 

Is this a Jasper problem? How can I fix it?

Wiebe



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RE: [OT] Open source paginator

[Wiebe de Jong]

I am custom developing it for my current project.

Wiebe

-Original Message-
From: N G [mailto:[EMAIL PROTECTED] 
Sent: Thursday, April 07, 2005 3:27 PM
To: Wiebe de Jong
Subject: Re: [OT] Open source paginator

You mean you're working an on open source paginator that is similar to
the ones you mentioned, just goes to the persistence layer for the
next page or are you developing something custom to your project only?

Thanks,
NG.

On Apr 7, 2005 6:13 PM, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> There are lots of them:
> 
> http://displaytag.sf.net
> http://valuelist.sf.net
> http://jsptags.com/tags/navigation/pager/pager-taglib-2.0.html
> http://jakarta.apache.org/taglibs/sandbox/doc/datagrid-doc/intro.html
> 
> and some useful articles:
> 
> http://raibledesigns.com/page/rd?anchor=there_s_a_new_sorting
> http://kulkarni_ash.tripod.com/howto/jsptaglib-howto.html
> 
> These packages all work the same: they take the entire result set, hold it
> in session memory, and page through it.
> 
> If you have a million-row result set, this approach won't work. You'll
need
> to make a trip to the database whenever the user wants a new page. I'm
> working on doing this right now.
> 
> Wiebe
> 
> -Original Message-
> From: N G [mailto:[EMAIL PROTECTED]
> Sent: Thursday, April 07, 2005 12:31 PM
> To: Struts-user
> Subject: [OT] Open source paginator
> 
> Does anyone know of some open source paginator package out there?
> Something generic enough that you could stick collections into and it
> would paginate it for you based on some criteria and expose methods to
> nextPage(), previousPage() and stuff like that.
> 
> Thanks,
> NG.
> 
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RE: [OT] Open source paginator

[Wiebe de Jong]

There are lots of them:

http://displaytag.sf.net 
http://valuelist.sf.net 
http://jsptags.com/tags/navigation/pager/pager-taglib-2.0.html 
http://jakarta.apache.org/taglibs/sandbox/doc/datagrid-doc/intro.html 

and some useful articles:

http://raibledesigns.com/page/rd?anchor=there_s_a_new_sorting 
http://kulkarni_ash.tripod.com/howto/jsptaglib-howto.html 

These packages all work the same: they take the entire result set, hold it
in session memory, and page through it.

If you have a million-row result set, this approach won't work. You'll need
to make a trip to the database whenever the user wants a new page. I'm
working on doing this right now.

Wiebe

-Original Message-
From: N G [mailto:[EMAIL PROTECTED] 
Sent: Thursday, April 07, 2005 12:31 PM
To: Struts-user
Subject: [OT] Open source paginator

Does anyone know of some open source paginator package out there?
Something generic enough that you could stick collections into and it
would paginate it for you based on some criteria and expose methods to
nextPage(), previousPage() and stuff like that.

Thanks,
NG.

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RE: Session Idle and Progress Bar

[Wiebe de Jong]

If you are doing a file upload, there is no way to know ahead of time how
big the file will be. In this case, instead of displaying a progress bar,
display the number of bytes received. There won't be any indication of how
long the operation will take, but at least you can see it working.

Wiebe

-Original Message-
From: Eain Mat [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, April 06, 2005 10:53 PM
To: Struts Users Mailing List
Subject: RE: Session Idle and Progress Bar

 
>>I would solve it by adding a 1 minute refresh in a hidden frame in your
page
>>to a action which just delivers next refresh header. As long as the user
has
>>the page open, the session will never expire. After he closes the browser,
>>the session expires normally.
I think this is the simplest solution. Thanks Leo.
 
Eain
 
 
Wiebe, 
 
If you want the page to do refreshes while waiting for the operation to
complete, why not implement a progress bar?

http://www.onjava.com/pub/a/onjava/2003/06/11/jsp_progressbars.html

We are considering to have the progress bar but is there way to figure out
or formula, how long does it take to load a respone/file by size? I think
someone must already implemented.
 
Let say I wanted to retreive response size of 1 MB, how can I determine how
long is it going to take to load a reponse depending on cpu?
 
Eain


Wiebe de Jong <[EMAIL PROTECTED]> wrote:
If you want the page to do refreshes while waiting for the operation to
complete, why not implement a progress bar?

http://www.onjava.com/pub/a/onjava/2003/06/11/jsp_progressbars.html

Here, each time the page refreshes, a progress bar is updated, showing the
user how the long-running operation is going.

Wiebe

-Original Message-
From: Leon Rosenberg [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, April 06, 2005 11:11 AM
To: 'Struts Users Mailing List'
Subject: re: Session Idle

I would solve it by adding a 1 minute refresh in a hidden frame in your page
to a action which just delivers next refresh header. As long as the user has
the page open, the session will never expire. After he closes the browser,
the session expires normally.

Regards
Leon

> -----Urspr|ngliche Nachricht-
> Von: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
> Gesendet: Mittwoch, 6. April 2005 20:02
> An: 'Struts Users Mailing List'
> Betreff: RE: Session Idle
> 
> Is it possible to create a listener for the session timeout 
> event? This listener would check to see if there is an 
> operation in progress. If there is, reset the timeout 
> counter. If not, let the session expire.
> 
> Wiebe
> 
> -Original Message-
> From: Justin Morgan [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, April 06, 2005 10:20 AM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> I think Eain is saying that he has some operations that take 
> a long time, and he wants to suspend the timeout counter 
> during those operations.
> 
> So suppose the timeout in web.xml is 5 minutes. One 
> particular operation takes 10 minutes to complete. Do not 
> expire session.
> 
> However, if the user is idle when there is NOT a long process 
> running, expire after 5 minutes.
> 
> Is that what you meant, Eain?
> 
> -Justin
> 
> 
> 
> -Original Message-
> From: Fogleson, Allen [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 8:57 PM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> That is exactly how the session timeout works. If the user is 
> idle (i.e has not submitted a request in X time) then it is 
> timed out (assuming X is the timeout) otherwise a request 
> acts sort of as a "renew this session for X more minutes"
> 
> Al
> 
> 
> -Original Message-
> From: Eain Mat [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 7:32 PM
> To: Struts Users Mailing List
> Subject: Re: Session Idle
> 
> if i invalidate the session, everything will be destory in 
> the session.
> I still want the session to keep alive when user is in the 
> middle of their processing operation even the session-timeout 
> is passed. I only want to timeout their session, if they are 
> not doing anything.
> 
> 
> Eain mat
> 
> Martin Gainty wrote:
> --web.xml contents--
> 
> 
> 5 
> 
> 
> then trap on the invalidate method for your HttpSession 
> object Makes sense???
> Martin-
> - Original Message -
> From: "Eain Mat" 
> To: 
> Sent: Tuesday, April 05, 2005 7:44 PM
> Subject: Session Idle
> 
> 
> > What is the simplest way to track the session idle? We cannot use
> session-timeout in web.xml because there may be leftover 
> operation that is needed to process.
> >
> > Eain Mat
&

RE: Session Idle

[Wiebe de Jong]

If you want the page to do refreshes while waiting for the operation to
complete, why not implement a progress bar?

http://www.onjava.com/pub/a/onjava/2003/06/11/jsp_progressbars.html

Here, each time the page refreshes, a progress bar is updated, showing the
user how the long-running operation is going.

Wiebe

-Original Message-
From: Leon Rosenberg [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, April 06, 2005 11:11 AM
To: 'Struts Users Mailing List'
Subject: re: Session Idle

I would solve it by adding a 1 minute refresh in a hidden frame in your page
to a action which just delivers next refresh header. As long as the user has
the page open, the session will never expire. After he closes the browser,
the session expires normally.

Regards
Leon

> -Ursprüngliche Nachricht-
> Von: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
> Gesendet: Mittwoch, 6. April 2005 20:02
> An: 'Struts Users Mailing List'
> Betreff: RE: Session Idle
> 
> Is it possible to create a listener for the session timeout 
> event? This listener would check to see if there is an 
> operation in progress. If there is, reset the timeout 
> counter. If not, let the session expire.
> 
> Wiebe
> 
> -Original Message-
> From: Justin Morgan [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, April 06, 2005 10:20 AM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> I think Eain is saying that he has some operations that take 
> a long time, and he wants to suspend the timeout counter 
> during those operations.
> 
> So suppose the timeout in web.xml is 5 minutes.  One 
> particular operation takes 10 minutes to complete.  Do not 
> expire session.
> 
> However, if the user is idle when there is NOT a long process 
> running, expire after 5 minutes.
> 
> Is that what you meant, Eain?
> 
> -Justin
> 
> 
> 
> -Original Message-
> From: Fogleson, Allen [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 8:57 PM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> That is exactly how the session timeout works. If the user is 
> idle (i.e has not submitted a request in X time) then it is 
> timed out (assuming X is the timeout) otherwise a request 
> acts sort of as a "renew this session for X more minutes"
> 
> Al
> 
> 
> -Original Message-
> From: Eain Mat [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 7:32 PM
> To: Struts Users Mailing List
> Subject: Re: Session Idle
> 
> if i invalidate the session, everything will be destory in 
> the session.
> I still want the session to keep alive when user is in the 
> middle of their processing operation even the session-timeout 
> is passed. I only want to timeout their session, if they are 
> not doing anything.
>  
>  
> Eain mat
> 
> Martin Gainty <[EMAIL PROTECTED]> wrote:
> --web.xml contents--
> 
> 
> 5 
> 
> 
> then trap on the invalidate method for your HttpSession 
> object Makes sense???
> Martin-
> - Original Message -
> From: "Eain Mat" 
> To: 
> Sent: Tuesday, April 05, 2005 7:44 PM
> Subject: Session Idle
> 
> 
> > What is the simplest way to track the session idle? We cannot use
> session-timeout in web.xml because there may be leftover 
> operation that is needed to process.
> >
> > Eain Mat
> >
> 
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
> 
> 
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RE: Session Idle

[Wiebe de Jong]

Actually, this is similar to something that happens when I do my online
banking at www.bmo.com

Their page has a timer in it that creates a popup notifying you that the
session is about to expire. If you click the button in the popup, the page
does a refresh and resets the timer.

Wiebe

-Original Message-
From: Leon Rosenberg [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, April 06, 2005 11:11 AM
To: 'Struts Users Mailing List'
Subject: re: Session Idle

I would solve it by adding a 1 minute refresh in a hidden frame in your page
to a action which just delivers next refresh header. As long as the user has
the page open, the session will never expire. After he closes the browser,
the session expires normally.

Regards
Leon

> -Ursprüngliche Nachricht-
> Von: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
> Gesendet: Mittwoch, 6. April 2005 20:02
> An: 'Struts Users Mailing List'
> Betreff: RE: Session Idle
> 
> Is it possible to create a listener for the session timeout 
> event? This listener would check to see if there is an 
> operation in progress. If there is, reset the timeout 
> counter. If not, let the session expire.
> 
> Wiebe
> 
> -Original Message-
> From: Justin Morgan [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, April 06, 2005 10:20 AM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> I think Eain is saying that he has some operations that take 
> a long time, and he wants to suspend the timeout counter 
> during those operations.
> 
> So suppose the timeout in web.xml is 5 minutes.  One 
> particular operation takes 10 minutes to complete.  Do not 
> expire session.
> 
> However, if the user is idle when there is NOT a long process 
> running, expire after 5 minutes.
> 
> Is that what you meant, Eain?
> 
> -Justin
> 
> 
> 
> -Original Message-
> From: Fogleson, Allen [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 8:57 PM
> To: Struts Users Mailing List
> Subject: RE: Session Idle
> 
> That is exactly how the session timeout works. If the user is 
> idle (i.e has not submitted a request in X time) then it is 
> timed out (assuming X is the timeout) otherwise a request 
> acts sort of as a "renew this session for X more minutes"
> 
> Al
> 
> 
> -Original Message-
> From: Eain Mat [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 05, 2005 7:32 PM
> To: Struts Users Mailing List
> Subject: Re: Session Idle
> 
> if i invalidate the session, everything will be destory in 
> the session.
> I still want the session to keep alive when user is in the 
> middle of their processing operation even the session-timeout 
> is passed. I only want to timeout their session, if they are 
> not doing anything.
>  
>  
> Eain mat
> 
> Martin Gainty <[EMAIL PROTECTED]> wrote:
> --web.xml contents--
> 
> 
> 5 
> 
> 
> then trap on the invalidate method for your HttpSession 
> object Makes sense???
> Martin-
> - Original Message -
> From: "Eain Mat" 
> To: 
> Sent: Tuesday, April 05, 2005 7:44 PM
> Subject: Session Idle
> 
> 
> > What is the simplest way to track the session idle? We cannot use
> session-timeout in web.xml because there may be leftover 
> operation that is needed to process.
> >
> > Eain Mat
> >
> 
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
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RE: Session Idle

[Wiebe de Jong]

Is it possible to create a listener for the session timeout event? This
listener would check to see if there is an operation in progress. If there
is, reset the timeout counter. If not, let the session expire.

Wiebe

-Original Message-
From: Justin Morgan [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, April 06, 2005 10:20 AM
To: Struts Users Mailing List
Subject: RE: Session Idle

I think Eain is saying that he has some operations that take a long
time, and he wants to suspend the timeout counter during those
operations.

So suppose the timeout in web.xml is 5 minutes.  One particular
operation takes 10 minutes to complete.  Do not expire session.

However, if the user is idle when there is NOT a long process running,
expire after 5 minutes.

Is that what you meant, Eain?

-Justin



-Original Message-
From: Fogleson, Allen [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 8:57 PM
To: Struts Users Mailing List
Subject: RE: Session Idle

That is exactly how the session timeout works. If the user is idle (i.e
has not submitted a request in X time) then it is timed out (assuming X
is the timeout) otherwise a request acts sort of as a "renew this
session for X more minutes"

Al


-Original Message-
From: Eain Mat [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 7:32 PM
To: Struts Users Mailing List
Subject: Re: Session Idle

if i invalidate the session, everything will be destory in the session.
I still want the session to keep alive when user is in the middle of
their processing operation even the session-timeout is passed. I only
want to timeout their session, if they are not doing anything.
 
 
Eain mat

Martin Gainty <[EMAIL PROTECTED]> wrote:
--web.xml contents--


5 


then trap on the invalidate method for your HttpSession object
Makes sense???
Martin-
- Original Message -
From: "Eain Mat" 
To: 
Sent: Tuesday, April 05, 2005 7:44 PM
Subject: Session Idle


> What is the simplest way to track the session idle? We cannot use
session-timeout in web.xml because there may be leftover operation that
is
needed to process.
>
> Eain Mat
>

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RE: Popup Windows with Struts Actions

[Wiebe de Jong]

The onlick="window.open ..." portion is the javascript onclick event. Just
use the snippet as presented, changing the two parameters and the link name
to suit your needs.

Wiebe

-Original Message-
From: Barnett, Brian W. [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 1:47 PM
To: 'Struts Users Mailing List'
Subject: RE: Popup Windows with Struts Actions

Sorry, I'm a javascript beginner. Can you provide a sample javascript
onclick event?

Thanks...

-Original Message-
From: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 11:54 AM
To: 'Struts Users Mailing List'
Subject: RE: Popup Windows with Struts Actions



Like this:

CSV

Add the javascript to the onclick event. The first parameter is the action
and the second is the window name. There are some additional optional
parameters that you can add to control the window, etc.

Wiebe de Jong

-Original Message-
From: Dakota Jack [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 10:42 AM
To: Frank W. Zammetti
Cc: Struts Users Mailing List
Subject: Re: Popup Windows with Struts Actions

No, have the popup url from the page be a struts action -- popup.do.

Jack

On Apr 5, 2005 10:37 AM, Frank W. Zammetti <[EMAIL PROTECTED]> wrote:
> Not sure what you mean... You mean open the popup from WITHIN an 
> Action?
> 
> --
> Frank W. Zammetti
> Founder and Chief Software Architect
> Omnytex Technologies
> http://www.omnytex.com
> 
> On Tue, April 5, 2005 1:27 pm, Dakota Jack said:
> > Anyone have some code on using JavaScript to open and close popup 
> > windows with a Struts Action?  Thanks.
> >
> > Jack
> >
> > --
> > "You can lead a horse to water but you cannot make it float on its
back."
> > ~Dakota Jack~
> >
> > 
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> 
> 


-- 
"You can lead a horse to water but you cannot make it float on its back."
~Dakota Jack~

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RE: Popup Windows with Struts Actions

[Wiebe de Jong]

Like this:

CSV

Add the javascript to the onclick event. The first parameter is the action
and the second is the window name. There are some additional optional
parameters that you can add to control the window, etc.

Wiebe de Jong

-Original Message-
From: Dakota Jack [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 05, 2005 10:42 AM
To: Frank W. Zammetti
Cc: Struts Users Mailing List
Subject: Re: Popup Windows with Struts Actions

No, have the popup url from the page be a struts action -- popup.do.

Jack

On Apr 5, 2005 10:37 AM, Frank W. Zammetti <[EMAIL PROTECTED]> wrote:
> Not sure what you mean... You mean open the popup from WITHIN an Action?
> 
> --
> Frank W. Zammetti
> Founder and Chief Software Architect
> Omnytex Technologies
> http://www.omnytex.com
> 
> On Tue, April 5, 2005 1:27 pm, Dakota Jack said:
> > Anyone have some code on using JavaScript to open and close popup
> > windows with a Struts Action?  Thanks.
> >
> > Jack
> >
> > --
> > "You can lead a horse to water but you cannot make it float on its
back."
> > ~Dakota Jack~
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> 
> 


-- 
"You can lead a horse to water but you cannot make it float on its back."
~Dakota Jack~

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RE: [OT] Poll: Does Dakota Jack have a job? :)

[Wiebe de Jong]

> I am married with two kids and a full-time job.  That should tell you 
> pretty clearly that I need and take ANY time I can away from those 
> things.  Sad as it sounds, arguing with Jack and otherwise interacting 
> with you folks is a nice diversion from life :)

I second that motion. I'm married with three kids, two dogs and I work from
home. Diversions are needed.

Wiebe de Jong



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RE: [Very OT] Hypothetical challege

[Wiebe de Jong]

The simple answer is to store all your session data in a database, with a
cookie value as the key. 

When the client connects, get the cookie value, read the session data from
the database, do your stuff, update the database, and respond to the user.

This will create a permanent session, which will survive shutting down the
browser, web server, app server, and whatever else. The session will only
end when the user explicitly logs out and terminates the session.

If you don't like the performance hit of going to the database every time,
then add a plugin. When the application starts, the plugin will read all the
sessions from the database into memory. When the application ends, the
plugin would write out all the sessions to the database.

Wiebe de Jong 

-Original Message-
From: Chaikin, Yaakov Y. [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, January 26, 2005 12:37 PM
To: 'Struts Users Mailing List'
Subject: [Very OT] Hypothetical challege

Hi,

This is a hypothetical question, but it's interesting to me if anyone can
come up with a solution and what that solution would be.

A few facts and requirements:

1) Suppose you have 2 machines. One must serve as your web server and the
other must serve as your EJB server.
2) Suppose you must keep track of some sort of session data for each client.
How you store the session data is flexible to a point... You want to take
advantage of stateful sessions for whatever reason (maybe your EJB server
has more resources or something like that).
3) You obviously have a remote reference to your stateful session EJBObject
in your web tier.
4) For whatever reason, you anticipate that you will want to restart your
web server now and then while there will be some moderate traffic to it
going on. Yet, you don't want to make all the clients lose their state.
5) You can use a cookie if you want to remember which client was which when
the server restarts.
6) You have the option of storing the remote references to you stateful
session EJBObject by getting EJBObject.getHandle() and storing it on the web
server machine in a serialized form.
7) No, you can not buy another web server and cluster them! Let's say there
is no more money left.

How do you catch "server/web app shutdown" event with no non-portable code,
so you can go through all your sessions and save the remote references to
your stateful beans on the EJB tier on hard disk so when the server starts
back up you would be able to restart the entire app without making the
clients lose their state?

Yes, this way of a contrived situation, but I am just very interested in how
this could be accomplished.

Anyone?

Thanks,
Yaakov.




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RE: PlugIn and the base URL

[Wiebe de Jong]

Hey David, that is a great idea.

Let me build on it a bit...

When the .war file is deployed, the baseURL property will be blank.

When the application starts up, it will check this property. If the property
is blank, the app will be in 'inactive' state and the only menu item
presented to the user is 'Activate'. The action for 'Activate' will read the
URL from the response and set the property. The application is now in the
'active' state and operating normally.

The next time the application starts up and checks the property, it is not
blank so the app is 'active'.

The activate action could do a couple of other things as well, such as
record the activation time (if you need it for billing) or fire off a
message to a licensing or billing server (for hosted apps, etc).

Wiebe de Jong


-Original Message-
From: David G. Friedman [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, January 26, 2005 10:33 AM
To: Struts Users Mailing List
Subject: RE: PlugIn and the base URL

A Devil's Advocate says:

I agree with the theory that the webapp Context name within the application
server "/myapp" should be available to the servlet but not the
host/port/etc.  Why?  Imagine you work on a project like mine where you are
using virtual host capability to map various paths on various virtual hosts
to your one Java webapp (one instance for all clients).  The startup
information you would obtain, in that situation, on the host and server port
would be wrong.  Only the request object would have the correct data.

With that in mind, the Devil's Advocate suggests:

Can you provide a plug-in to check a file for the information you require?
On first run, there would be no data so let them, upon first installation,
run an action.  That action could see if said file exists and, if not, put
it's url information (from the request) into that file (and this one time
into that class's class instance data).  If the file exists, the action
could politely return a page explaining the requested function is not
available (to prevent someone from potentially screwing things up by running
that action again).

Regards,
David, the devil's advocate today.

-Original Message-
From: Martin Wegner [mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 26, 2005 12:53 PM
To: Struts Users Mailing List
Subject: RE: PlugIn and the base URL

Agreed.  That approach works more often than not.  Except in this case.
The client of the WS does indeed use the URL that is sent back.  That is
part of the overal protocol.  So it has to be a valid URL that reaches the
WS inside of my Struts app.

One could argue that the real problem is within Axis, which does not
provide any HTTP details to the WS call dispatcher.  If I had access to
that info I could stuff it into the WS DOM response and not bother with
the Struts PlugIn.  Sigh.

--Marty

--- "Varley, Roger" <[EMAIL PROTECTED]> wrote:

> >
> > The WS response has to contain the URL that was used to
> > access the WS.
> > This is a requirement of the XML Schema that defines the WS response
> > payload.  I have no control over this.
> >
>
> I know this might be stupid, but whenever I see an odd requirement like
> this my first experiment is to see what happens if I pass something that
> is a valid URL but doesn't actually point anywhere. In this way you
> could simply "hard-code" a string value into your plugin. It wouldn't be
> the first time I've come across a "mandatory" requirement that doesn't
> actually do anything :)
>
> Regards
> Roger


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RE: R: Session Strategy (here's a filter)

[Wiebe de Jong]

This will detect that a session has already expired, but I think that is not
what he wants. 

I think Jack is looking for something to run WHEN the session expires,
similar to the destroy() method in a plugin that runs when the application
stops.

Wiebe de Jong

-Original Message-
From: Amleto Di Salle [mailto:[EMAIL PROTECTED] 
Sent: Thursday, January 20, 2005 9:41 AM
To: 'Struts Users Mailing List'; 'Dakota Jack'
Subject: R: R: Session Strategy (here's a filter)

Hello Jack,
you detect a session expiration using the getSession( false ) method. If
you use false, the session is not created if there is no current
session.
In fact, in a previous e-mail that I sent, there was my Filter which
used the getSession method.
All it works if the session expires, and you have to set in some way the
web container in order to delete the session object.

So, I don't understand what do you mean "I am not looking to create a
timeout but to detect a session expiration, so that the user can be
redirected to a page". 

BR
/Amleto



> -Messaggio originale-
> Da: Dakota Jack [mailto:[EMAIL PROTECTED] 
> Inviato: giovedì 20 gennaio 2005 18.03
> A: Amleto Di Salle
> Cc: Struts Users Mailing List
> Oggetto: Re: R: Session Strategy (here's a filter)
> 
> 
> Hello, Amleto,
> 
> I am not looking to create a timeout but to detect a session 
> expiration, so that the user can be redirected to a page.  I 
> am not, that is, looking to get rid of people but looking to 
> help people that have their session expired.
> 
> Jack
> 
> 
> On Thu, 20 Jan 2005 17:42:55 +0100, Amleto Di Salle 
> <[EMAIL PROTECTED]> wrote:
> > You can do this using request.getSession( false ) (false doesn't 
> > create the session) and use the following in the tag in the web.xml.
> > 
> > 
> > 30
> > 
> > 30 are minutes
> > 
> > You can set the session-timeout also in the web container 
> (see tomcat 
> > documentation).
> > 
> > BR
> > /Amleto
> > 
> > > -Messaggio originale-
> > > Da: Dakota Jack [mailto:[EMAIL PROTECTED]
> > > Inviato: giovedì 20 gennaio 2005 17.08
> > > A: Struts Users Mailing List
> > > Oggetto: Re: Session Strategy (here's a filter)
> > >
> > >
> > > I was looking for a filter that detected sessions that 
> had expired 
> > > and rerouted the request to a login or other appropriate page.
> > >
> > > Jack
> > >
> > >
> > > On Thu, 20 Jan 2005 10:53:09 -0500, [EMAIL PROTECTED] 
> > > <[EMAIL PROTECTED]> wrote:
> > > > Here's the filter I use.  It contains some logging that you
> > > can choose
> > > > to ignore and I also set some session attributes that I use for 
> > > > navigation AFTER the re-login, to get the user back to the
> > > page they
> > > > were on or as near as possible, given only their first/last
> > > name and
> > > > password.  I also included the configuration I added to 
> my web.xml 
> > > > file to activate the filter for all actions beginning with
> > > "/secure/"
> > > > Then, I added "/secure/" to all actions that should use the
> > > filter.  I
> > > > did this for all actions except the following, for which it
> > > would have
> > > > introduced a pretty obvious logic error: login, 
> register, and an 
> > > > action I use to direct the user back to the page they were
> > > on before
> > > > the timeout.
> > > >
> > > > Here's the filter
> > > >
> > > 
> 
> > > **
> > > > *
> > > >
> > > >
> > > 
> /***
> > > **
> > > > ***
> > > >  *
> > > >  * This class provides a servlet filter ensure that each
> > > request is coming
> > > > from
> > > >  * an authenticated user.  It also logs each servlet invocation.
> > > >  *
> > > >
> > > >
> > > 
> 
> > > **
> > > > **/
> > > > package schs82;
> > > >
> > > > import java.util.*;
> > > > import javax.servlet.*;
> > > > import javax.servlet.http.*;
> > > > import org.apache.struts.action.*;
> > > > import o

RE: Websphere discussion group

[Wiebe de Jong]

Set your nntp/newsreader to news.software.ibm.com

Wiebe

-Original Message-
From: news [mailto:[EMAIL PROTECTED] On Behalf Of Vic
Sent: Thursday, December 16, 2004 12:15 PM
To: [EMAIL PROTECTED]
Subject: Re: Websphere discussion group

IBM has newsgroups and mail lists, about a dozen related to WebShpere.
And BEA has it's own, and Sun also.

hth,
.V
Vicky wrote:

>Does anyone know if there websphere application server
>discussion group/forum exist?
>
>Thanks,
>Vicky
>
>
>   
>   
>__ 
>Do you Yahoo!? 
>Yahoo! Mail - You care about security. So do we. 
>http://promotions.yahoo.com/new_mail
>  
>


-- 
RiA-SoA w/JDNC  forums
blog 


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RE: Sending Binary Files from Action

[Wiebe de Jong]

Hey Richard,

Are you upgrading your Struts to 1.2.6 to make use of the DownloadAction, or
do you need something that works with your current Struts version?

Wiebe

-Original Message-
From: Richard [mailto:[EMAIL PROTECTED] 
Sent: Friday, November 26, 2004 12:55 AM
To: Struts Users Mailing List
Subject: Re: Sending Binary Files from Action

Hi Niall,

Thank you very much. The thing is I have found a sample application
that uses the DownloadAction. Discussion is at
http://www.mail-archive.com/dev@struts.apache.org/msg04600.html while
the source codes are at http://www.omnytex.com/downloadapp.zip.

I think I have a working version now and will stick to it. Again thank
you very much.
Richard


On Fri, 26 Nov 2004 08:06:46 -, Niall Pemberton
<[EMAIL PROTECTED]> wrote:
> Rather than answer you here, I've created a page on the wiki with
> examples...
> 
> http://wiki.apache.org/struts/StrutsFileDownload
> 
> I haven't actually used DownloadAction myself - but I am doing the same
sort
> of thing in my application.
> 
> 
> 
> 
> Niall
> 
> - Original Message -
> From: "Richard" <[EMAIL PROTECTED]>
> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> Sent: Friday, November 26, 2004 5:40 AM
> Subject: Re: Sending Binary Files from Action
> 
> > Hi Niall,
> >
> > Forgive but im a newbie. I dont know how I can use this. Definitely I
> > will need to change my struts jar files. But do I extend this action
> > or use it statically. What method do I use?
> >
> > Thanks
> > Richard
> >
> >
> > On Fri, 26 Nov 2004 05:32:09 -, Niall Pemberton
> > <[EMAIL PROTECTED]> wrote:
> > > Theres a new DownloadAction in Struts 1.2.6:
> > >
> > >
> http://struts.apache.org/api/org/apache/struts/actions/DownloadAction.html
> > >
> > > Niall
> > >
> > >
> > >
> > > - Original Message -
> > > From: "Richard" <[EMAIL PROTECTED]>
> > > To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> > > Sent: Friday, November 26, 2004 5:18 AM
> > > Subject: Sending Binary Files from Action
> > >
> > > > Hi Guys,
> > > >
> > > > I have created an expiring download link ( sent to users ) throiugh
> > > > the use of tokens and actions. Now I have not the slightest idea how
> > > > am I going to send the file to the user inside my actions. Can I use
> > > > forwards over this? please help.
> > > >
> > > > Thanks
> > > > Richard
> > > >
> > >
> > >
> > > -
> > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > For additional commands, e-mail: [EMAIL PROTECTED]
> > >
> > >
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> 
> 
> -
> 
> 
> To unsubscribe, e-mail: [EMAIL PROTECTED]
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>

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RE: Multibox deselection problem

[Wiebe de Jong]

This is a problem with HTTP: when all the checkboxes are deselected, the
browser doesn't send anything back, so you get the default of what you
started with. To solve this problem you must ensure that at least one box is
always selected.

I solved this problem by creating an additional checkbox that is hidden,
read-only and selected. This will ensure that the browser sends something
back.

String[] defaultEntities = {"A", "B", "C", "D", "filler"};



Wiebe

-Original Message-
From: Olivier Croisier [mailto:[EMAIL PROTECTED] 
Sent: Friday, November 12, 2004 6:47 AM
To: [EMAIL PROTECTED]
Subject: Multibox deselection problem

Hi !

I have a problem with the Multibox behaviour. I have checked the online doc
but nothing helped me so far... Here is my problem :

My app workflow is :
prepareImportAction.do  ->  Import.jsp  ->  processImportAction.do

In the prepareImportAction.do, I initialize the "entities" var (of type
String[], in session scope), so that the checkboxes are checked by default
when the jsp page is displayed :
String[] defaultEntities = {"A", "B", "C", "D"};
myform.set("entities", defaultEntities);

In the jsp page, I have a set of :





I also have a small javascript that allows the user to select or deselect
all checkboxes in one click :
function checkAll(field)
{   var i;
for (i=0;i

RE: AW: Paged data output

[Wiebe de Jong]

What database and version are you using?

Paging can be accomplished in different ways in different databases. In some
cases you can use a cursor. Other times you can't. In my current
application, I am using an older version of PostgreSQL so I am constrained
to using their non-standard LIMIT clause.

Wiebe

-Original Message-
From: Yaroslav Novytskyy [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, November 10, 2004 6:51 AM
To: Struts Users Mailing List
Subject: Re: AW: Paged data output

Hi!

Yes, I think that paging in DB queries is what I need.
(I don't whant to select all the data from the table)
That's why I'm asking about working examples. I have taken
a look at Displaytag and it is realy nice, but this is not exactly
what I need. iBatis is a closer solution, but it is needed to
take a closer look. Can you please show me a liitle example
or write a small step-by-step ref to get what I need.

Thanks
Yaroslav Novytskyy

- Original Message - 
From: "Vic (Vinny) Cekvenich" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 10, 2004 3:34 PM
Subject: Re: AW: Paged data output


> Also iBatis DAO w/ Displaytag.
>
> BUT I allways do paginiation in DB. For example select limit ofset.
> Depends of what you think lots of products are (and if you also have lots 
> of users)
>
> .V
>
>
> Stahlhut, Axel wrote:
>> Hi Yaroslav,
>>
>> try the displaytag tag library (http://displaytag.sourceforge.net/). 
>> Maybe it is useful.
>>
>> Regards
>> Axel
>>
>>
>>>-Ursprüngliche Nachricht-
>>>Von: Yaroslav Novytskyy [mailto:[EMAIL PROTECTED] Gesendet: 
>>>Mittwoch, 10. November 2004 12:55
>>>An: [EMAIL PROTECTED]
>>>Betreff: Paged data output
>>>
>>>
>>>Hi all!
>>>
>>>Can anyone explain (or point to an example) of how to output data on JSP 
>>>by pages with page navigation.
>>>
>>>Example:
>>>I have a products DB table with _lots_ of products.
>>>then (as far as I could understand) I should
>>>1. create a DAO factory
>>>2. create a ProductDAO class
>>>3. create a Product bean-type class
>>>4. in ProductDAO create a method listProducts in which
>>>  a) make a quiery like SELECT * FROM Products
>>>  b) for every row create a Product object and add to a list
>>>  c) return the list to action
>>>5. in action.execute save the list in request scope
>>>6. redirect to JSPwith the following logic:
>>>
>>>
>>>
>>>
>>>
>>>Question:
>>>If the described abow is correct, how to make paged output. So only 10 
>>>products are displayed and links to 2nd, 3rd ... pages
>>>
>>>Thanks
>>>Yaroslav Novytskyy
>>>
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>>>
>>>
>
>
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[OT] RE: A new paradigm of Struts development

[Wiebe de Jong]

Ooohhh,

Let's start a rumor. Craig is going over to Microsoft... It must be true
'cause I heard it on the list.

-Original Message-
From: Joe Germuska [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, November 09, 2004 3:41 PM
To: Struts Users Mailing List
Subject: Re: A new paradigm of Struts development

>Sorry for going on so long.

Nonsense.  That's why we have *discussion* lists.

>I may have misunderstood, and I am at a disadvantage because I am
>still trying to get a good idea of what JSF is all about, but I
>thought that Craig saw any merger between Struts and JSF as a
>temporary thing which was fundamentally not a long run arrangement.

Hm.  Maybe; I don't recall that.  The nice thing about the Apache 
license is that the code will live as long as you want it to.  So the 
arrangement is as 'long-run' as the community interested in 
supporting it.  Even if Apache revoked Struts' charter and Craig went 
to go work for Microsoft, the code would still be there, under a 
license which empowers you to take it and do whatever you need to 
with it.

>I don't understand your idea of a "view controller", Joe.  The "view
>controller" is a controller which is not something different from the
>Struts "controller" is it?  The controller, from my perspective needs
>to be decoupled from the view.  A "view controller" is just another
>way of saying, if I understand, that the view and the controller will
>be coupled.

Only as much as the model and the controller are coupled right now. 
It's more of a logical partitioning of control responsibilities into 
"inbound" and "outbound".  Some things which need to happen before 
control is passed to the view are common based on the destination 
view, not the request path.  At my job, the ability to hook some kind 
of control logic to the view has proven a nice way to organize things 
so that page preparation and form-prefilling behavior is shared and 
separate from form/request processing behavior.  For a lot of things, 
the split isn't so straightforward, but we've come to like the basic 
model.

>Ultimately, of course, there has to be some interface between the view
>and the controller.  I would wish there were an interface that could
>adapt the Struts architecture with the JSF sort of view intricacies.
>However, I don't see that the event-based, page-based, JSF approach
>can do that.

And here's where I'm waiting to either have more time to really 
understand it -- I've read all the "intro to JSF" articles, but 
haven't spent time coding with it -- or for someone to make more 
specific arguments that say "I need to do this, and here's why JSF 
makes it hard or impossible."  Or even just "here's a way that I can 
do this, which I need to do, without all that JSF silliness -- isn't 
this good enough, and less complicated?"

Anyone...?


--
Joe Germuska
[EMAIL PROTECTED]  
http://blog.germuska.com
"In fact, when I die, if I don't hear 'A Love Supreme,' I'll turn 
back; I'll know I'm in the wrong place."
- Carlos Santana

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RE: A new paradigm of Struts development

[Wiebe de Jong]

Is there any estimated date for when Shale might appear as a production
release?

Wiebe

-Original Message-
From: Craig McClanahan [mailto:[EMAIL PROTECTED] 
Sent: Monday, November 08, 2004 9:33 AM
To: Struts Users Mailing List
Subject: Re: A new paradigm of Struts development

Tak,

You and others who like the page oriented development environment will
enjoy reading about "Shale" -- it's my proposed architecture for
Struts 2.0 (basically providing application controller features on top
of JavaServer Faces), and the ViewHandler API has many of the same
characteristics you are describing.

The proposal isn't packaged separately at the moment, but it's all in
the *source* nightly builds of Struts, available at:

  http://cvs.apache.org/builds/jakarta-struts/nightly/

In the distro, the directory "contrib/struts-shale" includes a
proposal document and the beginnings of the corresponding API classes
and implementations, while the "contrib/struts-shale-mailreader
contains the good old struts-example webapp converted to use this
style to make it easy to see what it does to the programming model.

Of course, we're not the only ones thinking this way, either --
ASP.Net has pretty much the same pattern with code behind files.

Craig



On Sun, 07 Nov 2004 19:05:40 -0500, Tak Yoshida
<[EMAIL PROTECTED]> wrote:
> Hi,
> 
> I would like to introduce Page Driven development, OzStruts, to all Struts
developers,
> which makes Struts application more clean and maintainable.
> 
> I guess most of Struts developers are having same issues I had,
> so please take a look at my two cent idea.
> Any productive suggestion and critices would be really appreciated.
> 
> Documentations are available at
>
http://sourceforge.net/project/showfiles.php?group_id=111296&package_id=1203
34&release_id=280886
> 
> OzStruts 1.0 is available at
>
http://sourceforge.net/project/showfiles.php?group_id=111296&package_id=1289
65&release_id=280994
> 
> --
> Tak Yoshida mailto:[EMAIL PROTECTED]
> 
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
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> 
>

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RE: Need Ideas for This Puzzle

[Wiebe de Jong]

Keeping the unused fields around as hidden fields is a good idea. It will
keep your 'select all' javascript from getting complicated.

Just make sure that your action doesn't process any of the fields that were
made hidden, because hackers could modify those hidden fields manually
before sending back the response.

Wiebe

-Original Message-
From: Caroline Jen [mailto:[EMAIL PROTECTED] 
Sent: Friday, October 22, 2004 10:59 AM
To: Struts Users Mailing List
Subject: RE: Need Ideas for This Puzzle

What about something like:

<%
boolean checked = isChecked("a"); // check if the
value should be checked by default
if(showCheckbox(user, "a")) { // check if, for this
user, the checkbox should be visible
%>
>
<%
} else { // show disabled checkbox (or leave that out
to show nothing...)
%>
 disabled="diabled" />
<%
   if(checked) { // don't need hidden value if default
is unchecked
%>

<%
   }
}
%>

--- Wiebe de Jong <[EMAIL PROTECTED]> wrote:

> Here's my idea:
> 
> Create a bean that has multiple Boolean fields, with
> each corresponding to a
> checkbox you might want to display.
> 
> In the action that loads data for this page, process
> the user's role and set
> the bean's Boolean values accordingly. Store the
> bean so that the jsp can
> read it.
> 
> For all the checkboxes, the jsp will read the bean
> and display only the
> checkboxes that have a corresponding true value.
> 
> In the action that saves the data from this page,
> process only those
> checkboxes that were displayed.
> 
> Wiebe
> 
> -Original Message-
> From: Caroline Jen [mailto:[EMAIL PROTECTED] 
> Sent: Friday, October 22, 2004 9:03 AM
> To: [EMAIL PROTECTED]
> Subject: Need Ideas for This Puzzle
> 
> The puzzle relates to displaying check boxes
> (checkbox
> or multibox).
> 
> What I have are members who belong to professional
> groups and sub-groups.  E.g.,
> 
> Group A with sub-groups A-1, A-2, A-3, A-4.
> Group B with sub-groups B-1, B-2, B-3
> Group C with sub-groups C-1, C-2, C-3, C-4, C-5, C-6
> etc.
> 
> web site users make multiple selections among
> groups. 
> And all members in those groups will receive an
> e-mail
> message.
> 
> I can display a check box for every single
> "sub-group".  And give each "group" a "select all"
> check box.  All I have to take care are the checked
> "sub-groups".
> 
> The challege comes as the "roles" of the web site
> users are introduced.  According to the role of the
> web site user, I have to display certain groups (not
> all the groups) and certain sub-groups (not all
> sub-groups within a group) to him/her.
> 
> How do I disply groups and their sub-groups under
> such
> a condition?
> 
> 
> 
> 
> 
>   
> __
> Do you Yahoo!?
> Take Yahoo! Mail with you! Get it on your mobile
> phone.
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> 
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RE: Need Ideas for This Puzzle

[Wiebe de Jong]

Here's my idea:

Create a bean that has multiple Boolean fields, with each corresponding to a
checkbox you might want to display.

In the action that loads data for this page, process the user's role and set
the bean's Boolean values accordingly. Store the bean so that the jsp can
read it.

For all the checkboxes, the jsp will read the bean and display only the
checkboxes that have a corresponding true value.

In the action that saves the data from this page, process only those
checkboxes that were displayed.

Wiebe

-Original Message-
From: Caroline Jen [mailto:[EMAIL PROTECTED] 
Sent: Friday, October 22, 2004 9:03 AM
To: [EMAIL PROTECTED]
Subject: Need Ideas for This Puzzle

The puzzle relates to displaying check boxes (checkbox
or multibox).

What I have are members who belong to professional
groups and sub-groups.  E.g.,

Group A with sub-groups A-1, A-2, A-3, A-4.
Group B with sub-groups B-1, B-2, B-3
Group C with sub-groups C-1, C-2, C-3, C-4, C-5, C-6
etc.

web site users make multiple selections among groups. 
And all members in those groups will receive an e-mail
message.

I can display a check box for every single
"sub-group".  And give each "group" a "select all"
check box.  All I have to take care are the checked
"sub-groups".

The challege comes as the "roles" of the web site
users are introduced.  According to the role of the
web site user, I have to display certain groups (not
all the groups) and certain sub-groups (not all
sub-groups within a group) to him/her.

How do I disply groups and their sub-groups under such
a condition?






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[OT] RE: AspectJ question / lumberjack

[Wiebe de Jong]

Everybody sing!

Ohhh, 

He's a lumberjack, and he's okay,
He codes all night and he works all day.

I use strange words, I have no hunch,
I don't know what they should be.
On Tuesdays I go listing
And read messages for me.

http://en.wikipedia.org/wiki/The_Lumberjack_Song_(Monty_Python)

-Original Message-
From: James Mitchell [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, October 19, 2004 10:36 AM
To: Struts Users Mailing List
Subject: Re: AspectJ question

Because he secretly desires to be a lumberjack!!



--
James Mitchell
Software Engineer / Open Source Evangelist
EdgeTech, Inc.
678.910.8017
AIM: jmitchtx

- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 19, 2004 12:56 PM
Subject: Re: AspectJ question


> Bill, how is it that you write an entire message in surfer-speak, but then
at the very end use a hood term like "word"?!?
>
> POSER! :)
>
> On Tue, October 19, 2004 12:54 pm, Bill Siggelkow said:
> > Duude,
> >
> > Like, man ... no question is stupid ... some of them just aren't very
> > gnarly ... for sure, dude, this is like asking "Bro, does Struts work
> > well with XML?"
> >
> > For sure, Aspects rock like Nirvana (Cobain lives, dude!) ... google
> > "AspectJ Struts" and you're bound to find some heinous hits!
> >
> > Word!
> >
> > struts Dude wrote:
> >> Hi
> >>
> >> Does Struts work well with AspectJ?
> >>
> >> Sorry if this is a stupid question.
> >>
> >> Thanks
> >>
> >> Duuude
> >
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
>
>






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RE: sending/maintaning a download link

[Wiebe de Jong]

If you don't have access to a database, then creating some kind of in-memory
database and storing it in the servlet context is a good alternative. Use a
Struts plugin for setup and cleanup of whatever you use.

One thing you will have to be careful of is using up all your memory. If you
are storing token/timestamp/status for a large number of users, it will add
up.

Wiebe

-Original Message-
From: Andrew Hill [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, October 13, 2004 8:23 PM
To: Struts Users Mailing List
Subject: Re: sending/maintaning a download link

It wouldnt survive a server restart, but this may well be acceptable if 
you dont expect the server to restart very often and your token expiry 
is only a day or two and its easy to get another token if needs be.

Im not sure what the deal is with stuff added to servlet context after 
startup in a clustered environment however. If your in a cluster you 
would need to check up on that in the docs as it may not be available to 
all servers in the cluster?

Richard wrote:

> Hi Wiebe,
> 
> What if im not going to use any database? can I just store this in the
> servlet context?
> 
> Thanks
> Richard
> 
> 
> On Wed, 13 Oct 2004 10:12:38 -0700, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> 
>>The only way to make a link go away is to make it dynamic. That means that
>>the link you email will have to be to an action that returns the file.
There
>>have been quite a few threads recently on this mailing list about how to
get
>>actions to return files, including .pdf and .csv, so I won't cover that
>>here.
>>
>>Here is a list of steps for how I would go about implementing this
feature:
>>
>>1 - generate a unique token and store it in the database with a
>>timestamp=now() and status=valid.
>>2 - add this token to the url you send in the email:
>>http://www.mycompany.com/myapp/download.do?token=123abc
>>3 - when the user calls the action via the supplied url, the action checks
>>the database to see if the token is still valid.
>>4 - if token is valid, send the file, and then invalidate the token so it
>>can't be used again. (status=used)
>>5 - if token not valid, display a message to the user telling them that
the
>>link has either expired or already been used.
>>6 - have a background process run periodically (1 per day, every hour,
>>whatever) that checks the timestamps in the database and expires tokens if
>>the timestamp is more than 24 hours old. (status=expired)
>>
>>The background process can be run via Quartz, which was also covered
>>recently in this list.
>>
>>Wiebe de Jong
>>
>>
>>
>>-Original Message-
>>From: Richard [mailto:[EMAIL PROTECTED]
>>Sent: Wednesday, October 13, 2004 2:14 AM
>>To: Struts Users Mailing List
>>Subject: sending/maintaning a download link
>>
>>hi guys,
>>
>>how do i do this in struts?
>>
>>i want to send a download link ( via email - resolved ) to a newly
>>registered user and that download link will expire after 24hrs.
>>
>>is there and apache project for this?
>>
>>please help
>>
>>thanks in advance
>>richard
>>
>>-
>>To unsubscribe, e-mail: [EMAIL PROTECTED]
>>For additional commands, e-mail: [EMAIL PROTECTED]
>>
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>>For additional commands, e-mail: [EMAIL PROTECTED]
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>>
> 
> 
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> 


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RE: sending/maintaning a download link

[Wiebe de Jong]

The only way to make a link go away is to make it dynamic. That means that
the link you email will have to be to an action that returns the file. There
have been quite a few threads recently on this mailing list about how to get
actions to return files, including .pdf and .csv, so I won't cover that
here.

Here is a list of steps for how I would go about implementing this feature:

1 - generate a unique token and store it in the database with a
timestamp=now() and status=valid.
2 - add this token to the url you send in the email:
http://www.mycompany.com/myapp/download.do?token=123abc
3 - when the user calls the action via the supplied url, the action checks
the database to see if the token is still valid.
4 - if token is valid, send the file, and then invalidate the token so it
can't be used again. (status=used)
5 - if token not valid, display a message to the user telling them that the
link has either expired or already been used.
6 - have a background process run periodically (1 per day, every hour,
whatever) that checks the timestamps in the database and expires tokens if
the timestamp is more than 24 hours old. (status=expired)

The background process can be run via Quartz, which was also covered
recently in this list.

Wiebe de Jong

-Original Message-
From: Richard [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, October 13, 2004 2:14 AM
To: Struts Users Mailing List
Subject: sending/maintaning a download link

hi guys,

how do i do this in struts?

i want to send a download link ( via email - resolved ) to a newly
registered user and that download link will expire after 24hrs.

is there and apache project for this?

please help

thanks in advance
richard

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RE: RE: Struts and Quartz Scheduler

[Wiebe de Jong]

If you've not had any problems, that is good. Tomcat is probably taking care
of the threads for you and stopping them. Using the plugin is still better
because instead of relying on the app server to do your cleanup, you can
take charge of it yourself.

Wiebe

-Original Message-
From: Thomas Vogt [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 30, 2004 11:56 AM
To: Struts Users Mailing List
Subject: AW: RE: Struts and Quartz Scheduler

Hmm
never had any of the problems you mentioned with my app and I do WAR HOT
reload quite often. I never experienced the behaviour you mentioned on my
Tomcat 5 but maybe thats different for JBoss.
But since you mentioned it I will change it in my app too, so it is
compatible with JBoss too.

Thanks for the tip
;)
Thomas

- Original-Nachricht 
Von: Struts Users Mailing List <[EMAIL PROTECTED]>
An: 'Struts Users Mailing List' <[EMAIL PROTECTED]>, 'Thomas Vogt'
<[EMAIL PROTECTED]>
Betreff: RE: Struts and Quartz Scheduler
Datum: 30/09/04 20:26

> Starting Quartz from a servlet is not a good idea, use a Plugin instead.
> 
> Reason:
> 
> I am running on the JBoss application server, and the threads that Quartz
> creates on startup are attached to the app server when using the servlet
> method. Everything works fine, but when your webapp is shutdown, the
threads
> keep going. The threads do not stop until the app server is stopped. So,
if
> you do a hot deploy (just replace the .ear) of your application, which I
do
> quite often during development, you'll end up with multiples of your jobs
> executing at the same time.
> 
> Using plugin:
> 
> If you use a Struts plugin, the threads stop when the webapp stops, even
> when doing hot deploys. In the plugin, the init() method gets called once
> when Struts starts up and the destroy() method gets called once when
Struts
> shuts down. 


> 
> In my code below, I am called jobs implemented as stateless session beans.
> Your jobs might be implemented differently.
> 
> Code:
> 
> Web.xml: 
> Nothing here because you are not using a servlet
> 
> Struts-config.xml:
> Add this line:
> 
>   <plug-in className="com.mycompany.myapp.QuartzPlugin" />
> 
> QuartzPlugin.java:
> 
> package com.mycompany.myapp;
> 
> import javax.servlet.*;
> import javax.servlet.http.*;
> import org.apache.commons.logging.*;
> import org.apache.struts.action.*;
> import org.apache.struts.config.*;
> 
> import org.quartz.*;
> import org.quartz.impl.StdSchedulerFactory;
> import org.quartz.jobs.ee.ejb.EJBInvokerJob;
> 
> import java.util.*;
> 
> public class QuartzPlugin implements PlugIn {
> 
>   private static Log log = LogFactory.getLog(QuartzPlugin.class);
> 
>   private String ECOM_GROUP = "eComGroup";
> 
>   Scheduler sched;
> 
>   public void init(ActionServlet servlet, ModuleConfig moduleConfig)
> throws ServletException {
> 
> log.info("Quartz starting");
> 
> //Scheduler sched;
> try {
>   sched = StdSchedulerFactory.getDefaultScheduler();
>   sched.start();
> } catch (Exception e) {
>   log.info("Quartz Scheduler failed to initialize: " +
e.toString());
>   throw new ServletException(e);
> }
> 
> log.info("Initializing jobs...");
> 
> addJob(sched, "Heartbeat", "HeartbeatJob",
"execute", "0 0/15 * * * ?");
> // every 15 minutes
> addJob(sched, "ExpiredTrial", "ExpiredTrialJob",
"execute", "0 0 20/24 *
> * ?"); // every day at 8pm
> 
> log.debug("Quartz started");  
>   }
> 
>   private void addJob(Scheduler sched, String jobName, String jndiName,
> String methodName, String timing) {
> JobDetail jd = new JobDetail(jobName, ECOM_GROUP,
EJBInvokerJob.class);
> jd.getJobDataMap().put(EJBInvokerJob.EJB_JNDI_NAME_KEY, jndiName);
> jd.getJobDataMap().put(EJBInvokerJob.EJB_METHOD_KEY, methodName);
> Object[] jdArgs = new Object[0];
> jd.getJobDataMap().put("args", jdArgs);
> CronTrigger cronTrigger = new CronTrigger(jobName, ECOM_GROUP);   
> try {
>   cronTrigger.setCronExpression(timing);
>   sched.scheduleJob(jd, cronTrigger);
> } catch (Exception e) {
>   e.printStackTrace();
> }
>   }
>   
>   public void destroy() {
> log.info("Quartz stopping");
> 
>   try {
>   sched.shutdown();
>   } catch (SchedulerException ex) {
>   ex.printStackTrace();
>   }
>   sched = null;
>   }
> 
>

RE: Struts and Quartz Scheduler

[Wiebe de Jong]

Starting Quartz from a servlet is not a good idea, use a Plugin instead.

Reason:

I am running on the JBoss application server, and the threads that Quartz
creates on startup are attached to the app server when using the servlet
method. Everything works fine, but when your webapp is shutdown, the threads
keep going. The threads do not stop until the app server is stopped. So, if
you do a hot deploy (just replace the .ear) of your application, which I do
quite often during development, you'll end up with multiples of your jobs
executing at the same time.

Using plugin:

If you use a Struts plugin, the threads stop when the webapp stops, even
when doing hot deploys. In the plugin, the init() method gets called once
when Struts starts up and the destroy() method gets called once when Struts
shuts down. 

In my code below, I am called jobs implemented as stateless session beans.
Your jobs might be implemented differently.

Code:

Web.xml: 
Nothing here because you are not using a servlet

Struts-config.xml:
Add this line:

  

QuartzPlugin.java:

package com.mycompany.myapp;

import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.commons.logging.*;
import org.apache.struts.action.*;
import org.apache.struts.config.*;

import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.jobs.ee.ejb.EJBInvokerJob;

import java.util.*;

public class QuartzPlugin implements PlugIn {

  private static Log log = LogFactory.getLog(QuartzPlugin.class);

  private String ECOM_GROUP = "eComGroup";

Scheduler sched;

  public void init(ActionServlet servlet, ModuleConfig moduleConfig)
throws ServletException {

log.info("Quartz starting");

//  Scheduler sched;
try {
  sched = StdSchedulerFactory.getDefaultScheduler();
  sched.start();
} catch (Exception e) {
  log.info("Quartz Scheduler failed to initialize: " + e.toString());
  throw new ServletException(e);
}

log.info("Initializing jobs...");

addJob(sched, "Heartbeat", "HeartbeatJob", "execute", "0 0/15 * * * ?");
// every 15 minutes
addJob(sched, "ExpiredTrial", "ExpiredTrialJob", "execute", "0 0 20/24 *
* ?"); // every day at 8pm

log.debug("Quartz started");  
  }

  private void addJob(Scheduler sched, String jobName, String jndiName,
String methodName, String timing) {
JobDetail jd = new JobDetail(jobName, ECOM_GROUP, EJBInvokerJob.class);
jd.getJobDataMap().put(EJBInvokerJob.EJB_JNDI_NAME_KEY, jndiName);
jd.getJobDataMap().put(EJBInvokerJob.EJB_METHOD_KEY, methodName);
Object[] jdArgs = new Object[0];
jd.getJobDataMap().put("args", jdArgs);
CronTrigger cronTrigger = new CronTrigger(jobName, ECOM_GROUP);   
try {
  cronTrigger.setCronExpression(timing);
  sched.scheduleJob(jd, cronTrigger);
} catch (Exception e) {
  e.printStackTrace();
}
  }
  
  public void destroy() {
log.info("Quartz stopping");

try {
sched.shutdown();
} catch (SchedulerException ex) {
    ex.printStackTrace();
}
sched = null;
  }

}


I think I'll put this into my blog.

Wiebe de Jong
http://frontierj.blogspot.com/


-Original Message-
From: Thomas Vogt [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, September 29, 2004 10:08 PM
To: Struts Users Mailing List
Subject: AW: Struts and Quartz Scheduler

You need a class to be executed as Job

public final class BerechnungsJob implements Job
{
 /* (Kein Javadoc)
  * @see org.quartz.Job#execute(org.quartz.JobExecutionContext)
  */
 public void execute(JobExecutionContext context) throws
JobExecutionException
 {
...
 }
}

and you need a servlet that looks like this to init the Job Trigger

32  /***
33   * Die Klasse dient als Listener für den Servlet Container um den Timer
im Hintergrund laufen zu lassen.
34   *
36   * @version Version 1.0 27.08.2004
37   */
38  
39  public class TimerServlet implements Servlet
40  {
41  
42  /***
43   * @see javax.servlet.Servlet#init(ServletConfig)
44   */
45  public void init(ServletConfig arg0) throws ServletException
46  {
47  SchedulerFactory schedFact = new
org.quartz.impl.StdSchedulerFactory();
48  JobDetail jobDetail = new JobDetail("Calculation Timer",
"Calculation Timer", BerechnungsJob.class);
49  CronTrigger trigger = new CronTrigger("Calculation Timer",
"Calculation Timer");
50  
51  try
52  {
53  trigger.setCronExpression("0 0/5 * * * ?");
54  Scheduler sched = schedFact.getScheduler();
55  sched.start();
56  sched.scheduleJob(jobDetail, trigger);
57  }
58  

RE: Struts Action as Welcome File

[Wiebe de Jong]

Yup! I like it. 

Thanks

Wiebe

-Original Message-
From: David G. Friedman [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 23, 2004 4:53 PM
To: Struts Users Mailing List
Subject: RE: Struts Action as Welcome File

Wiebe,

If you want any directly-web-accessible JSP to display a tile, you can do
that.  Directions are in the TilesAdvancedFeatures.pdf:
http://www.lifl.fr/~dumoulin/tiles/tilesAdvancedFeatures.pdf

I often make my index.jsp (my web.xml's welcome-file) with code like this:
<%@ taglib uri="/tags/struts-tiles" prefix="tiles" %>


Or insert specific items or replacements for the definition using the tiles
addList, putList, put, etc. methods inside the tiles:insert tag,instead of
immediately closing the tiles:insert tag.

Was that what you meant by "Would that work with Tiles?"

Regards,
David

-Original Message-
From: Wiebe de Jong [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 23, 2004 5:01 PM
To: 'Struts Users Mailing List'
Subject: RE: Struts Action as Welcome File


Would that work with Tiles?

Wiebe

-Original Message-
From: Matt Bathje [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 23, 2004 1:51 PM
To: Struts Users Mailing List
Subject: Re: Struts Action as Welcome File

If search engine placement is a concern for your app, the home page
redirect may be a bad idea. We used this instead:

(in index.jsp):
<%@ taglib uri="/tags/struts-logic" prefix="logic" %>


(in struts-config):



Matt



Mulligan, Scott H wrote:

> That worked. I was hoping for a more elegant solution, but it'll do.
>
> Thanks!
>
> Scott Mulligan
>
>
>
> -Original Message-
> From: Wiebe de Jong [mailto:[EMAIL PROTECTED]
> Sent: Thursday, September 23, 2004 4:23 PM
> To: 'Struts Users Mailing List'
> Subject: RE: Struts Action as Welcome File
>
>
> Just have your web.xml point to a jsp. I call mine index.jsp, but you can
> use whatever.
>
>   
> /index.jsp
>   
>
> The jsp contents would be:
>
> 
> 
> 
>  
>
> Wiebe
>
> -Original Message-
> From: Mulligan, Scott H [mailto:[EMAIL PROTECTED]
> Sent: Thursday, September 23, 2004 12:37 PM
> To: Struts Users Mailing List
> Subject: Struts Action as Welcome File
>
> I am trying to set my application's welcome file to a struts dispatch
action
> (login.do?method=load), but it isn't being found. Is there any reason I
> can't use a dispatch action as my welcome page? Is there a better way to
do
> this?
>
> Scott Mulligan
>
>


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RE: Struts Action as Welcome File

[Wiebe de Jong]

Would that work with Tiles?

Wiebe

-Original Message-
From: Matt Bathje [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 23, 2004 1:51 PM
To: Struts Users Mailing List
Subject: Re: Struts Action as Welcome File

If search engine placement is a concern for your app, the home page 
redirect may be a bad idea. We used this instead:

(in index.jsp):
<%@ taglib uri="/tags/struts-logic" prefix="logic" %>


(in struts-config):



Matt



Mulligan, Scott H wrote:

> That worked. I was hoping for a more elegant solution, but it'll do.
> 
> Thanks!
> 
> Scott Mulligan
> 
> 
> 
> -Original Message-
> From: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, September 23, 2004 4:23 PM
> To: 'Struts Users Mailing List'
> Subject: RE: Struts Action as Welcome File
> 
> 
> Just have your web.xml point to a jsp. I call mine index.jsp, but you can
> use whatever.
> 
>   
> /index.jsp
>   
> 
> The jsp contents would be:
> 
> 
> 
> 
>  
> 
> Wiebe
> 
> -Original Message-
> From: Mulligan, Scott H [mailto:[EMAIL PROTECTED] 
> Sent: Thursday, September 23, 2004 12:37 PM
> To: Struts Users Mailing List
> Subject: Struts Action as Welcome File
> 
> I am trying to set my application's welcome file to a struts dispatch
action
> (login.do?method=load), but it isn't being found. Is there any reason I
> can't use a dispatch action as my welcome page? Is there a better way to
do
> this?
> 
> Scott Mulligan
> 
> 


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RE: Struts Action as Welcome File

[Wiebe de Jong]

Just have your web.xml point to a jsp. I call mine index.jsp, but you can
use whatever.

  
/index.jsp
  

The jsp contents would be:







Wiebe

-Original Message-
From: Mulligan, Scott H [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 23, 2004 12:37 PM
To: Struts Users Mailing List
Subject: Struts Action as Welcome File

I am trying to set my application's welcome file to a struts dispatch action
(login.do?method=load), but it isn't being found. Is there any reason I
can't use a dispatch action as my welcome page? Is there a better way to do
this?

Scott Mulligan



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My GMail invites are gone

[Wiebe de Jong]

All my invites are now gone. Maybe I'll get some more next round.

 

Wiebe de Jong

[EMAIL PROTECTED]

 

RE: [FRIDAY] GMail invites

[Wiebe de Jong]

I've got 6 invites available to whoever wants them.

Wiebe de Jong


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RE: site "shutdown" best practice?

[Wiebe de Jong]

Here is what I have done to implement the Site Shutdown use case.

Create an application level status variable, called runStatus, with a
default value of 'started'.

Create a page where the application admin user can initiate the shutdown
process. Enter the number X of minutes before shutdown. RunStatus is set to
'shutting down'. A timer is started which will run the shutdown process in X
minutes (whatever the admin entered as a value).

New Sessions:
When RunStatus != 'started', all login attempts are automatically redirected
to an information page.

Current Sessions:
If RunStatus = 'started', do normal action.
If RunStatus = 'shutting down', display a 'System shutting down in X
minutes' message before doing the normal action.
If RunStatus = 'stopped', send user to information page and kill session.

Shutdown Process:
After X minutes, set RunStatus = 'stopped'. Then do whatever needs doing,
like closing database connection pool, notifying admin user, etc.

Wiebe de Jong


-Original Message-
From: Dean A. Hoover [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, September 07, 2004 10:26 AM
To: [EMAIL PROTECTED]
Subject: site "shutdown" best practice?

I have a website I'm working on that is
fairly typical (I think): there areoperations that
anyone can do and operations that require
a user to be logged in. Authorization and
authentication are done using a database.
 From time to time, the site needs to be
shutdown for general maintenance, upgrades,
etc.

I want to give the users fair warning that the
site will be shut down at such and such a
time. I also want to prevent the users from
performing operations during this "shutdown".
I think it would be good if there were still
a home page up, with indications that the
system is offline and should be back by a certain
time. At first I thought I would create some
table in my database to control some of this
but I think this is not such a great idea, as the
reason for taking the site down may be to do
something radical to the database.

Is there some "best practice" for accomplishing
this?

Thanks.
Dean Hoover

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RE: [OT]1,2,3,4 I declare a pun war!

[Wiebe de Jong]

On the topic of sheep,
Where does that 100% virgin wool come from anyways?

-Original Message-
From: Jim Barrows [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 18, 2004 3:09 PM
To: Struts Users Mailing List
Subject: RE: [OT]1,2,3,4 I declare a pun war!



> -Original Message-
> From: Barnett, Brian W. [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, August 18, 2004 2:58 PM
> To: 'Struts Users Mailing List'
> Subject: RE: [OT]1,2,3,4 I declare a pun war!
> 
> 
> That was a b-d one.

Shearly it's not that wooly...



> 
> -Original Message-
> From: Jim Barrows [mailto:[EMAIL PROTECTED] 
> Sent: Wednesday, August 18, 2004 3:56 PM
> To: Struts Users Mailing List
> Subject: RE: [OT]1,2,3,4 I declare a pun war!
> 
> 
> 
> > -Original Message-
> > From: David Durham [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, August 18, 2004 2:54 PM
> > To: Struts Users Mailing List
> > Subject: Re: [OT]1,2,3,4 I declare a pun war!
> > 
> > 
> > Jim Barrows wrote:
> > 
> > >>> Sometimes it's a real feta to get to work though
> > >>
> > >> That's cheesy.
> > >
> > > Hey, as long is it doesn't make you blue, or throw bricks...
> > 
> > No, it wouldn't make you bleu; it's a white cheese made from ewe or 
> > goat's milk...
> 
> Oh, now I feel sheepish.
> 
> 
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> 

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RE: [OT]1,2,3,4 I declare a pun war!

[Wiebe de Jong]

Yup, down by the brie, by the brie, by the beautiful brie...

-Original Message-
From: Jim Barrows [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 18, 2004 2:53 PM
To: Struts Users Mailing List
Subject: RE: [OT]1,2,3,4 I declare a pun war!



> -Original Message-
> From: Jason King [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, August 18, 2004 2:55 PM
> To: Struts Users Mailing List
> Subject: Re: [OT]1,2,3,4 I declare a pun war!
> 
> 
> I cheddar at the thought of a pun war.

Must be a little colby, where you are then

> 
> >>>Sometimes it's a real feta to get to work though
> >>>  
> >>>
> >>That's cheesy.
> >>
> >>
> >
> >Hey, as long is it doesn't make you blue, or throw bricks...
> >
> >  
> >
> >>
> >>
> 
> 

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extending the html:select tag

[Wiebe de Jong]

I am having trouble extending the struts html:select tag, and I hope
somebody can help me.

Naill's example at http://www.niallp.pwp.blueyonder.co.uk/#errortag shows
how to extend the text tag. I used it to extend the password tag with no
problem.

However, when I use the same method to extend the select tag, I get a
runtime error. It seems to die even before the constructor is called.

So, how do you debug tags and does anyone have a solution to make this work?

Wiebe de Jong



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RE: Struts security/validation

[Wiebe de Jong]

Craig, both you and Jim suggested that I make use of prepared statements. I
implemented my SQL using strings because it is easier to tweak during the
development phase. 

Now that the project is in maintenance, moving to prepared statements is a
good idea. Probably help a bit in performance as well.

As for the XML/SOAP calls, using the serializer to create the character
entities would be good.

Thanks

Wiebe de Jong

-Original Message-
From: Craig McClanahan [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 11, 2004 10:50 AM
To: Struts Users Mailing List
Subject: Re: Struts security/validation

On Wed, 11 Aug 2004 10:32:04 -0700, Wiebe de Jong <[EMAIL PROTECTED]> wrote:
> I had a similar problem, which I discovered when one of my users tried to
> enter a street address containing an apostrophe. Since I use apostrophes
to
> delineate my text strings in my SQL statements, this caused a database
> error. I fixed it by not allowing apostrophes to be entered into any of
the
> test fields.
> 

I hope you never have a customer named O'Reilly :-).

> I admit this is overly restrictive, but I don't know how to get the
> apostrophe into my database otherwise. How would you do it Craig?
> 
> For SQL destined test, I disallow \ and '.

If I'm doing the SQL myself, I always use prepared statements:

  String streetAddress = "..."; // String may have "\" and "'" characters in
it
  PreparedStatement stmt = conn.prepareStatement
("UPDATE CUSTOMER SET STREET_ADDRESS=? WHERE CUSTID=?");
  stmt.setString(1, streetAddress);
  stmt.setInt(2, custId);
  stmt.executeUpdate();

and let the JDBC driver take care of getting the sensitive characters
escaped as needed.

(Of course, if you're using a persistence tier abstraction like EJB or
JDO or JDBC RowSets or Hibernate or iBatis et. al., you don't need to
worry about any of this -- it all happens automatically for you.)

> For XML destined text, I disallow <, >, &, \, and ".

For XML, I use one of several strategies depending on the detailed
situation:

* Recognize that XML allows either " or ' as attribute delimiters,
  so if a string includes one kind, just use the other.

* Write or use an XML serializer that translates "&" to "&"
  and so on for me.

* If the XML I am writing is actually markup on a page, use
  JSF components ... JSF includes APIs that do all the escaping
  for you.

> 
> Wiebe de Jong

Craig

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RE: Struts security/validation

[Wiebe de Jong]

I had a similar problem, which I discovered when one of my users tried to
enter a street address containing an apostrophe. Since I use apostrophes to
delineate my text strings in my SQL statements, this caused a database
error. I fixed it by not allowing apostrophes to be entered into any of the
test fields.

I admit this is overly restrictive, but I don't know how to get the
apostrophe into my database otherwise. How would you do it Craig?

For SQL destined test, I disallow \ and '.
For XML destined text, I disallow <, >, &, \, and ".

Wiebe de Jong

-Original Message-
From: Craig McClanahan [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 11, 2004 10:21 AM
To: Struts Users Mailing List
Subject: Re: Struts security/validation

On Wed, 11 Aug 2004 14:45:05 +0100, James Adams <[EMAIL PROTECTED]> wrote:
> Hello all,
> 
> I'm in the process of trying to secure my struts application against
"Cross site scripting", "SQL injection" style attacks.
> 
> One of the things I'm doing to prevent this is trying to restrict special
characters (;.<>(){}...etc) getting beyond the validator.
> 

Just thinking out loud for a moment ...

Cross site scripting attacks don't happen when sensitive characters
are inside an *input* field.  The problem comes if you *output* the
data without filtering for them.  That's why the Struts 
tag, for example, filters "<", ">", "&", and ";" for you unless you
explicitly tell it not to, so if you are diligent about how you copy
your database data to output pages, you can safely accept these kinds
of character in input.

I notice that Kishore Senji (one of the other respondents in this
thread) is using Google's Gmail, just as I am at the moment.  Since
this is a web application, it's a good thing that Googe isn't
disallowing the magic characters on input into a textarea, or else we
would not be able to participate in this conversation :-).

Is filtering input really the appropriate strategy for dealing with
this problem?  If successful it will certainly help, but the approach
strikes me as overly restrictive for most application needs.

Craig

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RE: [OT] DAO ... where to draw the line?

[Wiebe de Jong]

When it comes to app architecture, I always recommend the Core J2EE Patterns
book. The Second Edition is now available and you can get an overview of it
at http://corej2eepatterns.com/Patterns2ndEd/BusinessObject.htm

In response to your question:

A DAO should only contain the SQL code for the
create/read/update/delete/find methods of one single database file or view.

The Business Object, which is new in the Second Edition, wraps the DAO and
manages the state and business rules for that one object. Remove any
business rules, etc currently in your DAO and move them to the associated
Business Object when refactoring.

The Application Service, which is also new in the Second Edition, manages
business rules across multiple objects (Business Objects and/or DAOs).
Remove any business rules, etc currently in your Session Façades and move
them to the Application Service when refactoring.

Leave the transaction control, database connection stuff, etc in the Session
Façade.

So, go with your first example. Employee and Department should each have
their own DAO. If Department is just a simple lookup table, you could
combine them at the Business Object level. If Department is complicated with
its own set of business rules, then make use of an Application Service.

Wiebe de Jong

-Original Message-
From: Matthew J. Vincent [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 11, 2004 8:21 AM
To: Struts Users Mailing List
Subject: [OT] DAO ... where to draw the line?

[OFF TOPIC]

I know this is a struts forum, but as struts developers using DAOs, 
where do your DAO implementation draw the line? 

For example:

Let''s say I have three tables:

Employee (contains employee_id, employee_name,  and dept_id)
Department (contains dept_id, dept_name, loc_id)
Location (contains loc_id, location_name)

How deep do your classes go to replicate the data? 

Do you do this...

public class Employee {
private int id;
private String name;
private int deptId;   // just the id

// .. implementation details
}

or do you do this

public class Employee {
private int id;
private String name;
private Department dept;  // all of the data

// .. implementation details
}

and so on and so on.   Class Department has the same type of problem.  
Does it hold just the id for location or a variable class Location?

Should DAOs just fill in the id (keys) so it is up to the application 
using the DAOs to get the Employee class, then the Department class, and 
the the Location class like:

Employee emp = EmployeDAO.getEmployee(1);
Department dept = DepartmentDAO.getDepartment(emp.getDeptId());
Location loc = LocationDAO.getLocation(dept.getLocId());
System.out.println(emp.getEmpName() + " works in " + loc.getLocationName());

or

Employee emp = EmployeDAO.getEmployee(1);
System.out.println(emp.getEmpName() + " works in " + 
emp.getDept().getLoc().getLocationName());

Now this is just a simple example, but where do you draw the line?  It's 
possible to go on and on and on and cycle back to employee...

Any thoughts, links, tips, best practices, whatvere would be helpful!

Thanks!

Matt


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RE: Trying to highlate error causing fields

[Wiebe de Jong]

Seems the attached files didn't get through. Here are the important parts
inline:

ecom-tags.tld:

http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd";>

1.0
1.1
ecom

select
com.infobuild.ecom.taglib.SelectErrorTag
JSP

errorStyleSuffix
false
true


accesskey
false
true


alt
false
true


altKey
false
true


disabled
false
true


indexed
false
true


multiple
false
true


name
false
true


onblur
false
true


onchange
false
true


onclick
false
true


ondblclick
false
true


onfocus
false
true


onkeydown
false
true


onkeypress
false
true


onkeyup
false
true


onmousedown
false
true


onmousemove
false
true


onmouseout
false
true


onmouseover
false
true


onmouseup
false
true


property
true
true


style
false
true


styleClass
false
true


styleId
false
true


tabindex
false
true


size
false
true


title
false
true


titleKey
false
true


value
false
true




SelectErrorTag.java:
package com.infobuild.ecom.taglib;

import org.apache.struts.taglib.html.SelectTag;
import java.util.Iterator;
import javax.servlet.jsp.JspException;
import org.apache.struts.util.RequestUtils;
import org.apache.struts.action.ActionErrors;

public class SelectErrorTag extends SelectTag {

protected String errorStyleSuffix = "Err";

public SelectErrorTag() {
  super();
}

everything that follows is the same as the TextErrorTag.java
example




-Original Message-----
From: Wiebe de Jong [mailto:[EMAIL PROTECTED] 
Sent: Monday, August 09, 2004 3:33 PM
To: 'Struts Users Mailing List'
Subject: RE: Trying to highlate error causing fields

Niall,

This works great! Following your example at
http://www.niallp.pwp.blueyonder.co.uk/#errortag I extended it to do the
password tag and it worked.

A problem occurred when I tried to implement something for the select tag. I
keep getting the "[ServletException in:/tiles/mypage.jsp] -1 < 0'" error. 

My files are attached. Any ideas? Have you implemented any of the other form
tags?

Wiebe

-Original Message-
From: Niall Pemberton [mailto:[EMAIL PROTECTED] 
Sent: Monday, August 09, 2004 5:41 AM
To: Struts Users Mailing List
Subject: Re: Trying to highlate error causing fields

There a jar cotaining the compiled class and a tld file that you can
download:

http://www.niallp.pwp.blueyonder.co.uk/customtags.zip

All you need to do is deploy it as you would any other tag libarary.

Niall

- Original Message - 
From: "joe a." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, August 09, 2004 12:48 AM
Subject: Trying to highlate error causing fields


> I'm trying to use #3 on this page:
> http://www.niallp.pwp.blueyonder.co.uk/. It is a tag library that I'm
> trying to use with my struts web app. But I have no clue how to use
> the class file he provided. I don't know where to put it at compile
> time, and it has a different package name than my current project
> (package lib.framework.taglib;)
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
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>
>
>



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RE: Trying to highlate error causing fields

[Wiebe de Jong]

Niall,

This works great! Following your example at
http://www.niallp.pwp.blueyonder.co.uk/#errortag I extended it to do the
password tag and it worked.

A problem occurred when I tried to implement something for the select tag. I
keep getting the "[ServletException in:/tiles/mypage.jsp] -1 < 0'" error. 

My files are attached. Any ideas? Have you implemented any of the other form
tags?

Wiebe

-Original Message-
From: Niall Pemberton [mailto:[EMAIL PROTECTED] 
Sent: Monday, August 09, 2004 5:41 AM
To: Struts Users Mailing List
Subject: Re: Trying to highlate error causing fields

There a jar cotaining the compiled class and a tld file that you can
download:

http://www.niallp.pwp.blueyonder.co.uk/customtags.zip

All you need to do is deploy it as you would any other tag libarary.

Niall

- Original Message - 
From: "joe a." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, August 09, 2004 12:48 AM
Subject: Trying to highlate error causing fields


> I'm trying to use #3 on this page:
> http://www.niallp.pwp.blueyonder.co.uk/. It is a tag library that I'm
> trying to use with my struts web app. But I have no clue how to use
> the class file he provided. I don't know where to put it at compile
> time, and it has a different package name than my current project
> (package lib.framework.taglib;)
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>



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RE: Sharing Fields Between 2 Forms

[Wiebe de Jong]

Create one field and attach to the first form.
Create a second field identical to the first, but hidden, and attach it to
the second form.

Have some javascript attached to the first field that copies the contents of
the first field to the second field whenever a change is made.

Wiebe

-Original Message-
From: Ciaran Hanley [mailto:[EMAIL PROTECTED] 
Sent: Thursday, July 22, 2004 10:12 AM
To: Struts User Mailing List
Subject: Sharing Fields Between 2 Forms

Hello,

 

Is it possible for forms to share a common field? 

I have two forms on a page which both need to gather data from a
html:textarea.

 

I do not want to have two textareas on the JSP however so I can I share one
between both forms?

 

Thanks,

CH



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RE: struts.meetup.com (Re: [OT] Struts users in [my city, my country])

[Wiebe de Jong]

Ok. I've signed up as the first user in Vancouver. Now I just have to wait
for somebody else to signup...

-Original Message-
From: Joe Germuska [mailto:[EMAIL PROTECTED] 
Sent: Monday, May 24, 2004 1:46 PM
To: Struts Users Mailing List
Subject: struts.meetup.com (Re: [OT] Struts users in [my city, my country])

Struts users interested in meeting other Struts users face-to-face 
might want to have a look at http://struts.meetup.com/

Joe

-- 
Joe Germuska
[EMAIL PROTECTED]
http://blog.germuska.com
   "Imagine if every Thursday your shoes exploded if you tied them 
the usual way.  This happens to us all the time with computers, and 
nobody thinks of complaining."
 -- Jef Raskin

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[OT] Struts users in Vancouver, BC, Canada

[Wiebe de Jong]

Since we're on the topic of finding users, is there anybody out there from
the Vancouver, BC, Canada area?

RE: quartz scheduling

[Wiebe de Jong]

Here is a short tutorial on how to integrate Quartz

http://www.theserverside.com/blogs/showblog.tss?id=QuartzSchedulerInJ2EE

Wiebe

-Original Message-
From: Jignesh Patel [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 20, 2004 6:36 AM
To: [EMAIL PROTECTED]
Subject: quartz scheduling

Hi All,
Can anybody guide me how to integrate quartz scheduler with tomcat?
I am trying to develop email scheduling through quartz.

-Jignesh

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RE: Buffering the ouput of a JSP page within an action

[Wiebe de Jong]

Check out Matt Raible's solution to templated-email using Velocity. It is
good and I intend to use it for this purpose.

http://www.theserverside.com/blogs/showblog.tss?id=SpringVelocityEmail

Wiebe

-Original Message-
From: Amine Bousta [mailto:[EMAIL PROTECTED] 
Sent: Monday, April 19, 2004 3:01 AM
To: 'Struts Users Mailing List'
Subject: Buffering the ouput of a JSP page within an action

Hello,

I'm trying to write a struts action that could save in a database and
send by e-mail the output of a JSP page.
This JSP page needs attributes values that are stored in the session
context. In other words, I need ServletContext of the struts action and
the JSP page to be the same.
 
I first tried to use the Java "URL" object to perform this action but it
creates a separate ServletContext.

I didn't find any solution to this issue on the internet.
Does anybody can help me?...

Amine



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RE: [FRIDAY] humour

[Wiebe de Jong]

If you use the strut from an old car, it might have some carbon on it. Take
it to the prom.

-Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED] 
Sent: Friday, April 02, 2004 9:18 AM
To: Struts Users Mailing List
Subject: Re: [FRIDAY] humour

Does anyone know how I can do carbon dating using struts.. ?

I'm using tc4.1, struts 1.1 and postgres.

Thankyou very much for any help..

On 2 Apr 2004, at 19:11, Hookom, Jacob wrote:

> LOL...
>
> -Original Message-
> From: Mark Lowe [mailto:[EMAIL PROTECTED]
> Sent: Friday, April 02, 2004 11:07 AM
> To: Struts Users Mailing List
> Subject: Re: [FRIDAY] humour
>
> Thats right have a laugh, but they'll see I'm right..
>
>
> On 2 Apr 2004, at 18:58, Adam Hardy wrote:
>
>> Since it's Friday and I felt in need of a little light relief, I
>> looked through my collection of old humour-spam and found this, which
>> is so good I thought you listers would appreciate me sharing it here.
>>
>> The story behind the letter below is that there is this nutball who
>> digs things out of his back yard and sends the stuff he finds to the
>> Smithsonian Institute, labelling them with scientific names,
>> insisting that they are actual archaeological finds. This guy really
>> exists and does this in his spare time!  This is the actual response
>> from the Smithsonian Institution. It is a masterful piece of
>> diplomacy. Bear this in mind next time you are trying to let someone
>> down gently.
>>
>>
>>
>> Smithsonian Institute
>> 207 Pennsylvania Avenue
>> Washington, DC 20078
>>
>> Dear Sir:
>> Thank you for your latest submission to the Institute, labelled
>> "93211-D, layer seven, next to the clothesline post...Hominid
>> skull." We have given this specimen a careful and detailed
>> examination, and regret to inform you that we disagree with your
>> theory that it represents conclusive proof of the presence of Early
>> Man in Charleston County two million years ago.
>>
>> Rather, it appears that what you have found is the head of a Barbie
>> doll, of the variety one of our staff, who has small children,
>> believes to be "Malibu Barbie." It is evident that you have given a
>> great deal of thought to the analysis of this specimen, and you may
>> be quite certain that those of us who are familiar with your prior
>> work in the field were loathe to come to contradiction with your
>> findings. However, we do feel that there are a number of physical
>> attributes of the specimen which might have tipped you off to its
>> modern origin:
>>
>> 1. The material is moulded plastic.  Ancient hominid remains are
>> typically fossilised bone. 2. The cranial capacity of the specimen
>> is approximately 9 cubic centimetres, well below the threshold of
>> even the earliest identified proto-homonids. 3. The dentition
>> pattern evident on the skull is more consistent with the common
>> domesticated dog than it is with the ravenous man-eating Pliocene
>> Clams you speculate roamed the wetlands during that time. This
>> latter finding is certainly one of the most intriguing hypotheses
>> you have submitted in your history with this institution, but the
>> evidence seems to weigh rather heavily against it. Without going
>> into too much detail, let us say that:
>>
>> A. The specimen looks like the head of a Barbie doll that a dog has
>> chewed on. B. Clams don't have teeth.
>>
>> It is with feelings tinged with melancholy that we must deny your
>> request to have the specimen carbon dated. This is partially due to
>> the heavy load our lab must bear in its normal operation, and partly
>> due to carbon dating's notorious inaccuracy in fossils of recent
>> geologic record. To the best of our knowledge, no Barbie dolls were
>> produced prior to 1956 AD, and carbon dating is likely to produce
>> wildly inaccurate results.
>>
>> Sadly, we must also deny your request that we approach the National
>> Science Foundation Phylogeny Department with the concept of
>> assigning your specimen the scientific name Australopithecus
>> spiff-arino. Speaking personally, I, for one, fought tenaciously for
>> the acceptance of your proposed taxonomy, but was ultimately voted
>> down  because the species name you selected was hyphenated, and
>> didn't  really sound like it might be Latin. However, we gladly
>> accept your generous donation of this fascinating specimen to the
>> museum. While it is undoubtedly not a Hominid fossil, it is,
>> nonetheless, yet another riveting example of the great body of work
>> you seem to accumulate here so effortlessly.  You should know that
>> our Director has reserved a special shelf in his own office for the
>> display of the specimens you have previously submitted to the
>> Institution, and the entire staff speculates daily on what you will
>> happen upon next in your digs at the site you have discovered in
>> your back yard.
>>
>> We eagerly anticipate your trip to our nation's capital that you
>> proposed in your last letter, and several of us are pressing th

RE: Problem with html:multibox not clearing

[Wiebe de Jong]

This is an HTTP problem. If the user clears all the checkboxes, the browser
doesn't send anything back to the server. In this case, it seems that all
the checkboxes still have their default value. 

To fix this, I included a hidden checkbox on the form that is always
checked. The user can't see or modify it, so it will always remain checked.
This ensures that the browser will always send back the checkbox list, even
if all the checkboxes that the user can see are cleared.

Wiebe
http://frontierj.blogspot.com


-Original Message-
From: Jim Kennedy [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, March 30, 2004 12:06 PM
To: 'Struts Users Mailing List'
Subject: Problem with html:multibox not clearing

 I am using an html:multibox that is pretty much working fine except when I
uncheck all choices. I am also using the logic:iterate tag to generate many
checkboxes.  If I have a single box checked I can't seem to uncheck it if
it's the last one.  If I have several checked, I can uncheck them one at a
time and that works.  At least until I get down to just one checked.  Very
odd.  The problem seems to be that I can't get Struts to realize that there
are no checkboxes checked after I submit the form.

I am using struts 1.1, with DynaValidatorForm's.  Here's some of my code:

...



...





  



Don't think the above is the issue.  It's something deeper I think.

Any help is appreciated.

Jim Kennedy
IT Consultant



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