Jeremy, Thanks for your suggestions.
*>> I suppose you're only asking about the web UI portion of this application.* Yes, I was asking about the web ui portion only. *>> For the web UI part, there are basically two methods: push, poll* I would like to use the "poll" method. In fact, I'm trying exactly with the AjaxSelfUpdatingTimer behavior only. The problem is I don't want to display just the last x lines of the log but instead show the "current" content of the log while adding new content at the bottom. Something like "tail -F foo.log". I agree that if I were to display the last x lines, a LoadableDetachableModel implementation with the appropriate logic alone would be sufficient. On Mon, Nov 21, 2011 at 10:51 AM, Jeremy Thomerson < jer...@wickettraining.com> wrote: > On Sun, Nov 20, 2011 at 8:59 PM, James <james.eliye...@gmail.com> wrote: > > > Dear wicket community, > > > > In a project that I'm working on, I need to build a "live log viewer" or > > "dynamic log viewer" or "refreshable log viewer". > > Much like how hudson/jenkins displays the console output. > > > > The idea is to dynamically display the new data added to a log file along > > with the existing content. > > > > How to go about doing this? Please throw some light on this. > > > > I searched about this in the web, mailing lists but couldn't find what I > > was looking for, so I'm posting it here. > > If this is asked elsewhere, kindly re-direct me to the respective > resource. > > > > I suppose you're only asking about the web UI portion of this application. > The service / backend stuff is out of the context of this forum. > (Although I would suggest looking at using something like Camel that has > all the necessary stuff for monitoring files and file streams and then > routing messages through to your application and/or other processors - see > [1] below). > > For the web UI part, there are basically two methods: push, poll > > 1 - push - using something like cometd, etc to do AJAX push events (really, > these are long-pollers, leaving long-running HTTP requests going and > processing a stream of events that are received over the life of the > connection) > > 2 - poll - if you have some component that shows the last X lines of a log > file, just call component.add(new AjaxSelfUpdatingTimer(someDuration)). As > long as you've written your IModel correctly (it always retrieves the most > up-to-date data), this will work "out of the box" > > [1] http://camel.apache.org/stream.html - and things like scanStream > > -- > Jeremy Thomerson > http://wickettraining.com > *Need a CMS for Wicket? Use Brix! http://brixcms.org* > -- Thanks & Regards, James
