Hi guys,

hey, am trying to display the contents of a text file in a java applet as a ui plugin in ovirt.

The same applet performs successfully when run as a standalone, but fails to deliver when the it is run through ovirt.

UI plugins are written in JavaScript and HTML. UI plugin is technically standalone web application sandboxed within invisible <iframe> element under WebAdmin's DOM. UI plugin uses API to extend existing WebAdmin functionality through custom UI components (main tab, dialog, etc). Java applet technology cannot be used to implement UI plugin because plugin vs. WebAdmin integration happens on JavaScript/HTML level. I suggest to check out samples-uiplugins git repo for examples: http://www.ovirt.org/Features/UIPlugins#Sample_UI_plugins If you really want to write UI plugin in Java language, you can use GWT (as suggested by Greg) which yields JavaScript/HTML output. In general, any technology/language that ultimately yields JavaScript code can be used to implement UI plugin.

isn't one of the points of a uiplugin it doesn't have to be GWT based (as its not going to be part of the codebase)?

In fact, UI plugins can be written in GWT, if desired. However, as you mentioned, plugins are decoupled from WebAdmin code base through the plugin infra/subsystem. Regards, Vojtech ----- Original Message -----

From: "Greg Sheremeta" <gshereme@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: engine-devel@ovirt.org, "aditya mamidwar" <aditya.mamidwar@gmail.com>, users@ovirt.org Sent: Monday, March 31, 2014 2:44:40 PM Subject: Re: [Engine-devel] ui plugin problems, cannot read from a file.

----- Original Message -----

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From: "Itamar Heim" <iheim@redhat.com> To: "Greg Sheremeta" <gshereme@redhat.com>, "aditya mamidwar" <aditya.mamidwar@gmail.com> Cc: engine-devel@ovirt.org, users@ovirt.org Sent: Monday, March 31, 2014 12:58:33 AM Subject: Re: [Engine-devel] ui plugin problems, cannot read from a file.

On 03/30/2014 06:33 PM, Greg Sheremeta wrote:

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I don't have any ideas. But:

You really should use GWT to do this instead of an applet. I can't speak for everyone, and I'm not a maintainer, but I would not accept an applet into the ovirt-engine source code. It adds a very unnecessary dependency for the user (to have Java installed in the browser).

isn't one of the points of a uiplugin it doesn't have to be GWT based (as its not going to be part of the codebase)?

Ah, yes, of course :) So please disregard my comment. /me and his bruised ego steps away from engine-devel

Greg

...

...

Greg

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*From: *"aditya mamidwar" <aditya.mamidwar@gmail.com> *To: *users@ovirt.org, engine-devel@ovirt.org, awels@redhat.com, "Einav Cohen" <ecohen@redhat.com>, "Greg Sheremeta" <gshereme@redhat.com> *Sent: *Sunday, March 30, 2014 8:14:41 AM *Subject: *ui plugin problems, cannot read from a file.

hey, am trying to display the contents of a text file in a java applet as a ui plugin in ovirt.

The same applet performs successfully when run as a standalone, but fails to deliver when the it is run through ovirt.

any plausible explanation? PFA the screenshot of both cases

-- -Aditya Mamidwar

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