30 Apr
2009
30 Apr
'09
9:15 a.m.
Hi Tharindu,
On Thu, Apr 30, 2009 at 12:21 PM, Tharindu Madushanka <tharindufit(a)gmail.com
wrote:
Hi,
I was little bit busy this week with University just started for us. And I
am having 3 days holiday from tomorrow. Therefore, I thought I use that
time
to fix JIRA issue on my work.
Steps Revised
1. Create a LoginListener class that implements EventListener
can I use the package org.xwiki.observation.event to add this class ?
Yes, but it should be LoginEvent. You see we fire events through the
ObservationManager and we implement EventListener only at the destination
where we want to receive the event.
2. I do not need to create any DefaultObservationManager instance.
components.xml file is defined with DefaultObservationManager
implementation.
I get reference to it by calling (Step 5) when ever nececary
ObservationManager om = (ObservationManager)
Utils.getComponent(ObservationManager.class);
Ummm, if you are already inside a component you should not use
Utils.getComponent() method. Instead you should wire the observation manager
via dependancy injection. But if you are working on some old code
(xwiki-core and the like) you may use Utils.getComponent().
3. Define class UserLoginEvent similar to DocumentSaveEvent
in package org.xwiki.observation.event
I think this is what i described above.
4. Need to find the place where I call the addListener() of
ObservationManager with parameters - object of UserLoginEvent and reference
to login listener. I think when user initiated login I need to add the
listener. I looked at LoginAction class, but could not figure out a way.
I think the registration (against events) can happen from any place within
your code. But I'm not esactly sure where to do this in your case. Better
wait for sergiu's comment :)
6. Need to find when to call notify() of DefaultObjectManager instance when
user successfully logged in
Yes.
7. Implement notify() in LoginListener
Ummm, inside listener you have to implement onEvent() do whatever you need
to do when the event occurs.
I think I need to get familiar with com.xpn.xwiki.web package to learn how
to do steps 4 and 6. If anyone could point me some points to look for it
would be really helpful.
Remote debugging is your friend :)
Thanks.
- Asiri