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From "Chris Custine" <chris.cust...@gmail.com>
Subject Re: Autodiscovering Jams - a "vision" about improving the user experience
Date Fri, 24 Nov 2006 17:13:37 GMT
I can definitely see acheiving some of this down the road either with OSGi
or Java 7 modules (JSR-277).  I am prototyping an OSGi based scripted widget
system that would be similar to Yahoo Widgets (Konfabulator), Google
Desktop, etc. and I have similar ideas to what you mention.  I have seen so
many people with great ideas lately that I am expecting to see an explosion
of OSGi based apps in the next few months as people begin publicising their
work.  I am also hoping that some of these ideas will start to influence
features of OSGi itself to make some of this possible.


On 11/23/06, Francesco Furfari <francesco.furfari@isti.cnr.it> wrote:
> Hi all,
> moving from the jar autodiscovery idea, it's a while that I'm wondering
> how  the user experience will change in Java 7 with java modules. I
> haven't read the specification yet, so any idea here maybe is already
> addressed by the guys working on it, but if you like we could enjoy
> discussing about a new interaction style based on OSGi
> I started to play around the  -jar option of Java executable by means of
> which, clicking on a jar, we are able to launch a Java application. In
> the following story whose actors are Peter and Sally the entity behind
> the scene is an enhanced Felix daemon or if you prefer felixw.
> At last Peter has the time for testing the bundle developed by Sally.
> It is there, on the desktop. Peter right-click on the .jam file and a
> popup menu lists all the OSGi profiles actually active. Sally has
> packaged the bundle to start using the "SallyTest" profile but Peter
> does not want to launch another felix container, and selects the already
> active "office4" profile. A new window is opened by the bundle.
> << Cool !!  this time the UI is very cool. >>
> Peter then brings the main Office4 window in front of all to see whether
> the menu bar has been updated with the proper buttons.
> <<All right. The buttons are showed and enabled, hence the services are
> now registered and discovered, fine. Now closing the opened window the
> bundle should not be stopped. Try. Perfect the buttons are still
> displayed. Now let me stop the bundle from the console.>>
> <<Lets go ... where is the Felix Tray icon ,  here!, right-button
> click,  "active profiles" , "office4 ", sub-menu , "open console", done.
> Now which is the bundle id ?  mmm 35 ok stop 35! perfect no error
> messages and the buttons? disappeared! >>
> << fine, fine. Now lets go to see the communication between profiles. I
> want to test it with Spread4 but this time I launch the bundle as
> standalone application.>>
> Peter double-click on the Sally's bundle icon and then on the
> Spread4.jam file.
> Peter has configured  his Felix Deamon factory to start by default with
> a JMX agent and the Event Manager that's every container can be monitored.
> << Now filling this box the Sally's service should invoke the EA
> sendEvents  method, but before let me linking Spread4 with the bundle.>>
> << Link menu, link menu ... where is it? ah here! "active profile"
> submenu ,"SallyTest", done. Before to become crazy let me check if the
> connection with the agent has been established>>
> Peter opens the Spread4 console clicking again on the Felix Tray icon
> and its sub-menus.
> << ok connection established, now from the "Avalable Services"  of
> Spread4 menus  I should find our service. Lets go to see. perfect! >>
> << will it work? try ...... sheet,  nothing happens,  why!? why? it has
> always worked before!! #@# >>
> Peter opens the console of the standalone application and read the
> message:
> "not able to cash TranslationManager-0.8.0.jam"
> Then Peter goes to unzip the jam file to take a look at the SallyTest
> profile.
> <<Let me think ...  mmm I understood, in the office4 profile the
> TranslationManager was already cached probably Sally has forgot to
> upload it in the Tomcat server>>
> <<let me check>>
> In auto.start property  the profile there's a pointer to a remote
> bundle, then
> Peter opens the last JConsole based on OSGi to see what is installed in
> the remote server.
> Peter has seen right, the last version of Translation Manager is missing.
> Then Peter install the TranslationManager bundle using the OBR tab,
> Tomcat is Felix based too.
> << Done. Let me check the bundle directly from the browser so far>>
> Peter launches Firefox3 (obviously osgi aware) then goes to the home
> site of the product and read the web page.
> "clicking on the link you can installing the product as a standalone
> application or running it on an already active profile. Right clicking
> and choose 'save as' to save a bundle on your PC"
> Peter right-click the link, and Firefox3 shows a menu of the active
> profiles of Peter's PC.
> He choose "start as new", a  jvm is launched and a new "SallyTest-1"
> profile activated.
> Peter then links again Spread4 to the "SallyTest-1" profile and checks
> again the service.
> All works fine now. The EA is probed and when the box is filled the JMX
> agent sends a notification to the Spread4 jvm, the message is posted
> again in the Spread4 EA  and delivered to the subscribed services of the
> application .
> <<good. Sally has done a good work with the bundle>>
> << tomorow I will try the features extraction and the fusion with our
> bundle.
> I want to try the extraction of the 'Chat' feature by Eclipse to see if
> it can be merged successfully with our bundle >>
> Peter closes all the active jvms from the Felix Tray icon and goes to
> home.
> that's all
> don't ask me what was developing Sally :-)
> hoping it can enjoy and tickle for a further discussion
> bests
> francesco
> Richard S. Hall wrote:
> > Yeah, this is what I would have suggested too. This type of
> functionality definitely does not need to be built into Felix.
> >
> > -> richard
> >
> > -----Original Message-----
> >
> > From:  Toni Menzel <tonimenzel@gmx.de>
> > Subj:  Re: autodiscover bundles?
> > Date:  Thu 23. Nov 2006 9:27
> > Size:  676 bytes
> > To:  felix-dev@incubator.apache.org
> >
> > Hi Wouter,
> > A very simple autodiscovery (based on observing a directory) is Peter
> > Krien's FileInstaller.
> > You can find it here: http://www.aqute.biz/Code/FileInstall
> > It's a pure bundle which works on any OSGi Implementation.
> >
> > I don't know if equinox functionality you descibe is usable on felix,
> > too? (would be nice to know)
> >
> > greets,
> > Toni
> >
> > Wouter de Vaal schrieb:
> >
> >> Hi,
> >>
> >> I'm investigating osgi frameworks and I was wondering if Felix has
> >> some sort of autodiscovery functionality as eclipse has. Some when a
> >> jar is dumped in a folder, felix automatically loads this as an osgi
> >> bundle.
> >>
> >> Thanx
> >> Wouter
> >>
> >
> >
> >

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