How about putting this in Seam sandbox/modules for now?
Talk to Dan Allen offline about the structure for the code (but
basically it is like webbeans-extensions).
Also, ping me and I'll sort out the SVN permissions.
On 28 May 2009, at 22:45, Peter Royle wrote:
Hi,
I know you're all really busy right now with the spec updates, but
I've got a new extension for possible inclusion into WebBeans, plus
a new example app for SE which uses it.
== Quartz Extension ==
WebBeans-Quartz.zip
The extension is a Quartz extension. It basically fires events
@Every Second, @Every Minute and @Every Hour, which can be observed
like so:
public void updateSomething(@Observes @Every Hour hour) { // blah }
On startup the extension first checks for the presence of observers
for each type of event and if there are no observers for a
particular type of event, no events will be scheduled.
I intend to extend it by:
1) introducing a way to define arbitrary schedules (in annotations
or in a properties file which is then referenced by name in an
annotation - which can then be made typesafe by subclassing the
annotation). Eg:
package org.jboss.webbeans.extension.scheduler;
public @interface Scheduled {
String name();
}
-----------
public @interface AfterHours extends Scheduled{
String name() default "afterHours";
}
-----------
schedule.properties:
afterHours=0 1 * * * *
-----------
public void batchProcess(@Observes @AfterHours Schedule
schedule) { ... }
2) Adding whatever is necessary to make this usable in EE
environment. Any pointers?
3) Any other suggestions?
== Memory Graph Example ==
MemoryGrapher.zip
This is another Swing based example, which renders a graph of the
VM's free memory, updating every second and calling garbage
collection every minute using the above extension. It's a nice
concise example of how to bootstrap and shutdown SE, how to observe
events and how to use the injectable logger. Plus everyone loves a
pretty graph!
I know there is some obvious clean up work required, and maybe
removing the name Quartz (?) - which I'm happy to do prior to
checking in.
What do you think?
Pete.
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