FROGi : Fractal over OSGi

Abstract

FROGi is a proposal to introduce the Fractal component model into the OSGi services platform.
There are two motivations for this work:

The first one is to offer a flexible component model to the OSGi developers to simplify bundle development. Bundles developed with FROGi are nevertheless compatible with standard bundles.
The second motivation is to leverage OSGi’s deployment capabilities to package and deploy Fractal components.

In FROGi, a Fractal application is packaged an delivered as a set of OSGi bundles; such an application supports partial deployment and additionally, deployment activities can occur continuously.

Documentation

A paper in french (presented at DECOR04)
A presentation in french (presented at DECOR04)
A presentation in english (presented at the ObjectWeb/OSMOSE deployment meeting - Sevilla and Paris)
JavaDoc

Demonstrator

The demonstrator is based on the basic example of Client-Server for Fractal/Julia

The sources

Download the demonstrator sources

There are five Eclipse projects :

the fractal bundle to export Fractal API
the client component bundle
the server component bundle
the composite bundle
a test bundle to connect and use the service proposed by the composite

Remark : since this implementation, Fractal has evolved and now proposes to specify a custom classloader(cf mail).

The binaries

The bundles describe in the sources part are also available in binaries :

Fractal and Julia installation

Download Fractal binaries at http://fractal.objectweb.org/download/index.html
and a tutorial is available at http://fractal.objectweb.org/tutorials/fractal/index.html

OSCAR installation

Download OSCAR binaries on http://oscar.objectweb.org
and follow the installation instructions

Bundle installation

1)	Download the distribution jar file and install it with the command --> java -jar JAR_NAME.jar
2)	Run oscar (oscar.bat or oscar.sh) and install required obr bundles. Commands to run on OSCAR shell : --> obr start "Service Binder" An optional installation of oscar administration console is done using --> obr start "Shell GUI" --> obr start "Shell Plugin"

Contact

mikael.desertot@imag.fr
didier.donsez@imag.fr
cristina.marin@imag.fr
humberto.cervantes@imag.fr

TODO List

write a full description in english
extend the FractalADL with FROGi elements
add instances and factories
add instances and org.osgi.framework.ServiceFactory
write a deployment guidelines manual
build a demonstrator based on the Comanche Web Server