I see your point, Mike. I was thinking in terms of medium length tasks, not truly long running. You mentioned that the javascript approach is very error prone. Are you referring to differences between browsers, or is there something else?
In terms of very long tasks, I actually did something like this with a retirement planning company that had to run monte-carlo simulations for a web app. From a backend perspective, we used jini and javaspaces to execute the actions and retrieve the results. In terms of the web side, which was not related to ww, we did not have the lack of javascript constraints. So, it was just a matter of having the browser's timeout long enough. Where javascript is not allowed, the 204 suggestion that Tim made seems like a pretty good idea. However, that may also violate the same requirement that motivates the banishment of javascript. Lars, just out of curiosity, what is driving the requirement for not supporting the complete browser model (no javascript)? -----Original Message----- From: Mike Cannon-Brookes [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 25, 2003 9:33 PM To: [EMAIL PROTECTED] Subject: Re: [OS-webwork] Displaying a progress page Les, You could do it using DHTML, but I'm fairly sure that's not how Expedia do it. It's a LOT more error prone to do that way :) FWIW we're investigating creating a generic 'long running task' system for JIRA - used for tasks like reindexing and importing/exporting data which take a long time. I think using a WW action this should be relatively easy to do. Mike On 26/6/03 10:13 AM, "[EMAIL PROTECTED]" ([EMAIL PROTECTED]) penned the words: > I haven't actually done this yet (but am planning to) -- however, can't > you take care of this behavior with dhtml?? It seems like you could > call a javascript function on submit that pulled a layer (actully > css-pos) to the top. That layer would say "in progress" with a pretty > animated gif or have some neat little javascript progress bar. The > javascript would then submit the form. When it's done, the browser > updates. This seems like it will work and is likely better than the > server side solutions. Is there something I'm missing?? BTW, I think > this is how expedia used to do it. > > LES > > -----Original Message----- > From: Mike Cannon-Brookes [mailto:[EMAIL PROTECTED] > Sent: Wednesday, June 25, 2003 7:01 PM > To: [EMAIL PROTECTED] > Subject: Re: [OS-webwork] Displaying a progress page > > Uhm, well why not just make your task runnable and run it in a new > thread? > :) Or you could use a util.Timer. > > Another (nicest IMHO) alternative is to make it a scheduled task and use > something like Quartz to kick it off. > > M > > On 26/6/03 6:05 AM, "Jason Carreira" ([EMAIL PROTECTED]) penned > the > words: > >> Well, for us we queue a JMS message. I'm not sure of another way to >> start an asynch process in the J2EE spec.... >> >>> -----Original Message----- >>> From: Lars Fischer [mailto:[EMAIL PROTECTED] >>> Sent: Wednesday, June 25, 2003 3:42 PM >>> To: [EMAIL PROTECTED] >>> Subject: RE: [OS-webwork] Displaying a progress page >>> >>> >>> Jason, >>> >>> thanks for the reply ! >>> >>> Any hint how you start the asynchronous process ? >>> >>> Lars >>> >>>> If you can start it up as an asynchronous process, you can use the >>>> trick of having a progress page which checks some state, such as a >>>> database or something in the session, and shows the progress bar or >>>> just a "processing..." and have it refresh itself using a >>> meta-refresh >>>> if things aren't done... If the process is done you can >>> forward to a >>>> final status page. >>>> >>>> We've used this technique pretty successfully. >>>> >>>> Jason >>>> >>>>> -----Original Message----- >>>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>>>> Sent: Wednesday, June 25, 2003 8:31 AM >>>>> To: [EMAIL PROTECTED] >>>>> Subject: [OS-webwork] Displaying a progress page >>>>> >>>>> >>>>> Does anyone have a good idea how to display a temporary >>>>> progress page in WW 1.x ? >>>>> >>>>> I have a form where users can define paremeters for an import >>>>> of data into the local database. After submitting the page >>>>> the import method is started. This process may take a while >>>>> so I want to show a general progress page saying that >>>>> the import is running. After finishing the import I want to >>>>> return to the original page where users can start an import. >>>>> >>>>> Does anyone know how to do this ? The problem seems to be >>>>> that WW is displaying the result-view AFTER the whole action >>>>> has finished. >>>>> >>>>> Thanks in advance >>>>> >>>>> Lars >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------- >>>>> This SF.Net email is sponsored by: INetU >>>>> Attention Web Developers & Consultants: Become An INetU >>>>> Hosting Partner. Refer Dedicated Servers. We Manage Them. You >>>>> Get 10% Monthly Commission! INetU Dedicated Managed Hosting >>>>> http://www.inetu.net/partner/index.php >>>>> >>>>> _______________________________________________ >>>>> Opensymphony-webwork mailing list >>>>> [EMAIL PROTECTED] >>>>> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork >>>>> >>>> >>>> >>>> ------------------------------------------------------- >>>> This SF.Net email is sponsored by: INetU >>>> Attention Web Developers & Consultants: Become An INetU Hosting >>>> Partner. Refer Dedicated Servers. We Manage Them. You Get >>> 10% Monthly >>>> Commission! INetU Dedicated Managed Hosting >>>> http://www.inetu.net/partner/index.php >>>> _______________________________________________ >>>> Opensymphony-webwork mailing list >>>> [EMAIL PROTECTED] >>>> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork >>>> >>> >>> >>> >>> ------------------------------------------------------- >>> This SF.Net email is sponsored by: INetU >>> Attention Web Developers & Consultants: Become An INetU >>> Hosting Partner. Refer Dedicated Servers. We Manage Them. You >>> Get 10% Monthly Commission! INetU Dedicated Managed Hosting >>> http://www.inetu.net/partner/index.php >>> >>> _______________________________________________ >>> Opensymphony-webwork mailing list >>> [EMAIL PROTECTED] >>> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork >>> >> >> >> ------------------------------------------------------- >> This SF.Net email is sponsored by: INetU >> Attention Web Developers & Consultants: Become An INetU Hosting > Partner. >> Refer Dedicated Servers. We Manage Them. You Get 10% Monthly > Commission! >> INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php >> _______________________________________________ >> Opensymphony-webwork mailing list >> [EMAIL PROTECTED] >> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: INetU > Attention Web Developers & Consultants: Become An INetU Hosting Partner. > Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! > INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php > _______________________________________________ > Opensymphony-webwork mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > ------------------------------------------------------- > This SF.Net email is sponsored by: INetU > Attention Web Developers & Consultants: Become An INetU Hosting Partner. > Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! > INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php > _______________________________________________ > Opensymphony-webwork mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork ------------------------------------------------------- This SF.Net email is sponsored by: INetU Attention Web Developers & Consultants: Become An INetU Hosting Partner. Refer Dedicated Servers. 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