I agree that exception handling is currently not one of the console's
strong suits.  I have been thinking about introducing a new dojo
widget for displaying messages in the console.   It would be based on
the dialog widget which you can see by clicking the "show dialog"
anchor in this page:
http://archive.dojotoolkit.org/nightly/tests/widget/test_Dialog.html

The design that you proposed sounds reasonable and would also provide
a first step for introducing the message widget described above by
wrapping the exceptions and providing a place to display them.  I'm in
favor of creating a JIRA for this.

One question I have is what do you consider life span for an error
message?  If it only has the duration of a single request/response
then it would be lost by the user refreshing the page, clicking the
'help' link,  or using the minimize/maximize controls your
GERONIMO-795 patch would introduce.  Seems like error messages need to
be explicitly dismissed by the user.  Also, would your approach
continue to log the message in the server log or just display it to
the user?

Best wishes,
Paul

On 12/1/06, Rakesh Midha <[EMAIL PROTECTED]> wrote:
Hello

In case I get any exception or error condition in Console, the nothing is
printed on web console and huge stack trace is printed on server console.
Only thing done in the name of Exception handling in all the portlets is
"throw PortletException"

I somehow don't like this behavior of console. As a console user I don't
want to go and see server stacktrace, if there is some error I should
atleast be informed in console. I think everytime there is a error or
exception in console, it should be printed in either exception page in
webconsole, or in header of portlet view page. This is done to some extent
in configManager and CA part of console. But not in uniform way.

This is what I am proposing for Exception handling in console :
1. Create a ConsoleException.java which extends PortletException, this class
will have overridden printStackTrace(PrintWriter), which will set attribute
required in _ConsoleException.jsp apart from printing the stack on
PrintWriter.
2. Create _ConsoleException.jsp which should be included in all portlet,
this jsp will be responsible to print a short message and long stack trace.
(with a toggle button to view and hide long stack trace)
3. All Portlet classes should throw ConsoleException instead of
PortletException

I think this will be nice and cleaner way to handle the console problems.

I am working on
https://issues.apache.org/jira/browse/GERONIMO-2578 to
solve the same problem in deploy new app portlet. Once don't I will supply
the patch and open another JIRA to do this activity for all the portlets.

Please let me know if I am thinking right or missing something. Your views
and comments will be appreciated.

Thanks
Rakesh

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