Re: [equinox-dev] app model demo

[Thomas Watson <tjwatson@xxxxxxxxxx>]

If the console is moved out of the framework
then I think it will have to be started very early so that it could see
all the LAZY_ACTIVATION events.  I added more discussion to the bug
report. https://bugs.eclipse.org/bugs/show_bug.cgi?id=176049

Tom

Jeff McAffer <Jeff_McAffer@xxxxxxxxxx>
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+1. 

Note that I have been trying to move the console out of the framework so
it would be a bonus if you could avoid accessing internals.

Jeff

BJ Hargrave <hargrave@xxxxxxxxxx>
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Not  sure. I will let you know when I figure it out!

I opened https://bugs.eclipse.org/bugs/show_bug.cgi?id=176049 to track
this change.

BJ Hargrave
Senior Technical Staff Member, IBM
OSGi Fellow and CTO of the OSGi Alliance
hargrave@xxxxxxxxxx

office: +1 386 848 1781
mobile: +1 386 848 3788




Thomas Watson/Austin/IBM@IBMUS 
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Sounds like a fine idea, but how are you going to determine if the bundle
is in the "LAZY" state?  You will need to use framework
internals to get 
such information. 

Tom 




BJ Hargrave/Austin/IBM@IBMUS 
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(on a side note...)

With the changes to lazy activation, we now see bundles in the STARTING
state a lot more. I think we should modify the console  commands (eg.
ss) 
to say something more that just "STARTING" . It would be more
useful if 
the console detected the bundle was awaiting activation and said LAZY 
instead of STARTING. This way we can distinguish between a bundle 
functioning normally and waiting for activation and those which have 
abnormally been "stuck" in activation?

Thoughts? If folks agree, I can work up a change to the console.

BJ Hargrave
Senior Technical Staff Member, IBM
OSGi Fellow and CTO of the OSGi Alliance
hargrave@xxxxxxxxxx

office: +1 386 848 1781
mobile: +1 386 848 3788




Jeff McAffer <Jeff_McAffer@xxxxxxxxxx> 
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I tweaked the wiki by moving the content for that demo to its own page
and 

doing a few edits. 

i also tried running the headless launch config but could not get it to
run.  Is there some magic?  I get an error about the applicaiton
not being 

found (we likely don't actually want an Eclipse application to be found
right?) and the app bundle is left in STARTING state 
id        State       Bundle 
0        ACTIVE      org.eclipse.osgi_3.3.0.v20070208
1        STARTING    org.eclipse.core.jobs_3.3.0.v20070202
4        STARTING    org.eclipse.equinox.common_3.3.0.v20070122
5        RESOLVED    org.eclipse.equinox.examples.sharedisplay_1.0.0
6        STARTING    org.eclipse.equinox.registry_3.2.100.v20061204
7        RESOLVED    org.eclipse.osgi.services_3.1.100.v20060918
8        RESOLVED    org.eclipse.swt_3.3.0.v3325g
                  Fragments=14
9        RESOLVED    org.eclipse.swt.examples.addressbook_1.0.0
10        RESOLVED    org.eclipse.swt.examples.browserexample_1.0.0
11        RESOLVED    org.eclipse.swt.examples.clipboard_1.0.0
12        RESOLVED    org.eclipse.swt.examples.graphics_1.0.0
13        RESOLVED    org.eclipse.swt.examples.paint_1.0.0
14        RESOLVED    org.eclipse.swt.win32.win32.x86_3.3.0.v3325
                  Master=8
15        STARTING    org.eclipse.equinox.app_1.0.0.qualifier

Thoughts? 

Jeff 



Thomas Watson <tjwatson@xxxxxxxxxx> 
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I updated the wiki (see 
http://wiki.eclipse.org/index.php/Equinox_Demos#Application_Model).  I
spent some time creating a UI front end.  Its nothing fancy but it
seems 
to work good enough.  I did not spend any time making the console
commands 

any better.  I don't want to spend any more time on this demo right
now. 

TODOs after EclipseCon 

- make app console commands more user friendly 
- provide instructions for running on foundation. 

Tom.


Jeff McAffer <Jeff_McAffer@xxxxxxxxxx> 
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Tom Watson wrote on 02/28/2007 09:32:49 AM:

> 
> Wow Jeff, I'm surprised you got it working with no instructions!!
 I
> was working on some instructions earlier this week and they all got
> lost when I went to save them on the wiki.  Unfortunately I was
not 
> smart enough to copy a backup, I was working directly on the wiki
> page (I will never do that again!!) and when I went to save it 
> somehow wiped out the whole demo page.  No matter what I did
I could
> not get back to my new content.  I had to go to history to restore
> the previous version of the page without my new content. 
> 
> See more comments below 
> 
> Tom. 
> 
> equinox-dev-bounces@xxxxxxxxxxx wrote on 02/27/2007 10:37:33 PM:
> 
> > 
> > I was just playing with the app model demo code. It may not be
> > complete but here is what I observed. 
> > 
> > - Way cool! 
> > - the launch config when loaded into my workspace seemed to include
> > all the bundles in my workspace.  The option to "add
new workspace 
> > plugins..." should be deselected. 
> 
> I will fix this. 
> 
> > - The launch config is setup to use a Foundation 1.0 JRE if 
> > available.  I indeed to have one but using the launch config
does 
> > not work because hte javax.xml related packages were not found.
> > there likely needs to be a parser supplied somewheere and the
> > appropriate system properties set to direct the framework what
> > classes to bind as the XML services.  I changed the JRE
to be 1.5 
> > and all worked fine. 
> 
> Foundation 1.0 would likely work if we installed a parser bundle,
> but for the demo I will just use 1.4.2 or higher. 

Can you put up instructions of rhow to run this on Foundation? 

> > - We need a set of instructions on the Equinox Demos wiki 
> >         http://wiki.eclipse.org/index.php/Equinox_Demos
> 
> See comments above !! :( 
> 
> > - as a point of demo-ability it would be good if the various
console
> > commands like startApp and stopApp took short forms of the 
> > application ids.  Basically do an indexof over the set of
available 
> > apps (e.g., inactive or active ones as appropriate) with the
given 
> > app id fragment.  If there is only one, act on it, if there
are 
> > more, bail and report ambiguity.  That way you could say
"startApp 
paint" 
> 
> I was looking into providing a small jface/swt front end to drive
> the apps It should be simple to do, correct?  But I am ignorant
when
> it comes to UI programming (I would love to learn, but may not have
> the time).  Do you think using the console to drive the apps
is good
> enough for this demo? 

Console is definitely good enough. Actually I'm thinking it is even 
better.  feels retro but new at the same time :-) 

> > - It seems that you need to have the runtime bundle (and its
> > attendant prereqs) in the launch config for the app model bundle
to 
> > start.  Otherwise the app bundle is left in starting state.
 Ideally
> > users could simply install the app bundle and its prereqs (is
the 
> > registry even really needed?)  So the question is, what
is the 
> > minimal configuration that allows for MEG applications to be
run and
> > then what is the recommended/simple configuration. 
> 
> I can setup an equinox launcher or use a custom config.ini with the
> minimal set of bundles.  This will give us the control to start
the 
> app model bundle without org.eclipse.core.runtime.  In full eclipse
> platform org.eclipse.core.runtime is started and it ensures the org.
> eclipse.equinox.app bundle gets started.   The registry is 
> definately needed because the eclipse application container 
> registers ApplicationDescriptor services based on extensions of the
> org.eclipse.core.runtime.applications extension point. 

Ok on the registry.  Some configuration that does not include the
runtime 
(and its prereqs would be cool)  I could not get that to wokr. 

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