ObjectWeb - Petals - Architecture

Kernel Architecture (version 2.1)

petals/petals-core/petals-kernel project

The kernel is a component-architecture based application. The framework used to connect the various components of the application is FRACTAL

$petals-fractal-petals.png$

The kernel is bootstraped with a different assembly of its components, depending on the distribution (hosteg in a J2EE server, integration server mode, networked infrastructure...)

The assembly is described in Fractal configuration files :

petals/petals-distribution/petals-platform/src/main/resources project
petals/petals-distribution/petals-standalone/src/main/resources project

"Petals" composite

The global composite of the kernel is Petals. This composite is started when the application starts. The Petals composite is composed of several composites and components :

JBI-Management composite contains the Management part of the JBI specification (InstallationService, DeploymentService...)
Container composite
JBI-Messaging composite contains the N.M.R. part of the JBI specification (message routing, business services management...)
Platform composite contains components that interact with the system (repository, classloader...)
Communication composite contains agents for communication (jndi, jmx...) and communication services (jmxService, jndiService,...)
Transport composite
ConfigurationService component
PetalsAdminService component : the PEtALS server administration service