[brailleblaster] Re: Is it possible to show a stack trace in a dialog box?
- From: "John J. Boyer" <john@xxxxxxxxxxxxxx>
- To: brailleblaster@xxxxxxxxxxxxx
- Date: Fri, 16 Mar 2012 08:44:25 -0500
Thanks for the information and the link. The article sounds good.
John
On Fri, Mar 16, 2012 at 01:39:55PM -0000, Michael Whapples wrote:
> OK, I have taken a quick look, you're using the Java logging API. A quick,
> but not recommended way you could do it from other classes would be to
> assign a Logger with the following line:
> Logger logger = Logger.getLogger("org.brailleblaster");
> Works as this will return a reference to the existing logger used in BBIni.
> The above is not recommended simply on the account that the name used for
> the logger (the String being passed to the Logger.getLogger(String) method)
> should be the class name, which would allow precise control on logging
> output (eg. allowing one to only get logging output for one class or
> package or set one class or package to a different logging level to the
> rest or even have different logging outputs for different parts of the
> application). You haven't followed that recommendation in the BBIni class
> already.
>
> Here is a more recommended way of doing things, it will answer the
> questions you have posed up to now
> http://www.vogella.de/articles/Logging/article.html
>
> However I would also recommend looking at using configuration files for
> configuring the loggers, need to find a tutorial covering that.
>
> Michael Whapples
>
> -----Original Message-----
> From: John J. Boyer
> Sent: Thursday, March 15, 2012 5:45 PM
> To: brailleblaster@xxxxxxxxxxxxx
> Subject: [brailleblaster] Re: Is it possible to show a stack trace in a
> dialog box?
>
> Thanks. I have set up the logger, but it only reports problems that
> occur in BBIni. How do I get it to repoet problems in other classes?
> Perhaps an error message could offer the user the option of viewing the
> log.
>
> John
>
> On Thu, Mar 15, 2012 at 04:06:10PM -0000, Michael Whapples wrote:
> >Hello,
> >Firstly I would say that in general stack traces should never be shown to
> >users, stack traces probably are only really meaningful to developers. May
> >be if there is an error message appear a details button may reveal debug
> >information which may include a stack trace, however we should try and
> >provide a more helpful message wherever possible to help users. An error
> >dialog may offer a way to let the user send debug information to
> >developers, but we probably would want more than just a stack trace, so
> >may
> >be a section of the log output for just before the exception was raised
> >could be sent as well.
> >
> >Anyway, to deal with the actual question, refer to the javadoc for
> >Exception, which really doesn't add much over Throwable, so here's the
> >link
> >for Throwable's javadoc for Java6
> >http://docs.oracle.com/javase/6/docs/api/java/lang/Throwable.html
> >
> >If you were wanting to write to a stream of some sort then the
> >printStackTrace methods may be relevant as there are methods which can
> >take
> >PrintWriter or PrintStream. If you want greater programatic control/access
> >to the stack trace then look at the method getStackTrace() which gets an
> >array of the StackTraceElements, you would need to deal with
> >StackTraceElement yourself to create the String in the form you want.
> >
> >Michael Whapples
> >
> >-----Original Message-----
> >From: John J. Boyer
> >Sent: Thursday, March 15, 2012 12:01 PM
> >To: brailleblaster@xxxxxxxxxxxxx
> >Subject: [brailleblaster] Is it possible to show a stack trace in a dialog
> >box?
> >
> >This would be a big help to development oif one is using the GUI and
> >something bad happens. The trace would have to be captured as a String
> >and then passed to a method in Documentmanager. This method would in
> >turn display it in a SWT MessageBox with an OK button or perhaps with
> >the option to continue.
> >
> >More generally. liblouis and liblouisutdml were designed to be their own
> >developmennt tools. How can this be applied to BrailleBlaster?
> >
> >Thanks,
> >John
> >
> >--
> >John J. Boyer; President, Chief Software Developer
> >Abilitiessoft, Inc.
> >http://www.abilitiessoft.com
> >Madison, Wisconsin USA
> >Developing software for people with disabilities
> >
> >
>
> --
> John J. Boyer; President, Chief Software Developer
> Abilitiessoft, Inc.
> http://www.abilitiessoft.com
> Madison, Wisconsin USA
> Developing software for people with disabilities
>
>
--
John J. Boyer, Executive Director
GodTouches Digital Ministry, Inc.
http://www.godtouches.org
Madison, Wisconsin, USA
Peace, Love, Service
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