Changes for document Chameleon

From version 5.1
edited by Clement Escoffier
on 2011/03/29 10:50
To version 6.1
edited by Clement Escoffier
on 2011/03/29 11:46
Change comment: There is no comment for this version
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ProjectShortDescription Chameleon is a way to create "a la carte" OSGi-based application servers. It provides a complete infrastructure to create OSGi applications based on OW2 components. Chameleon creates "a la carte" OSGi-based application servers built around the concept of services.
projectOverviewDescription The Chameleon project aims to provide a simple way to lay out specific OSGi runtimes fitting your requirements. The strategy is to provide a layered stack. Each layer focuses on a specific part of the system: from the underlying runtime to a service catalog containing useful and reusable services. The Chameleon service catalog lists services and their implementations. This catalog focuses on the service concept and implementations are substitutable. So, you can choose your implementations according to our requirements and switch dynamically to another one. The catalog does not only contain services defined and implemented on OW2 Chameleon, but also contains standard OSGi services as well as others services. The infrastructure layer contains a set of frameworks to: - Interact with remote services and deal with distributed event protocols - Introspect the current state of the system - (Re-) configure the system - Administrate the system and the applications Depending of the application, you can choose the framework you need, deploy them later… Chameleon does not define only one way to deploy components, but support several mechanisms such as: - Apache Felix FileInstall: to install bundles locally easily (like a ‘deploy’ folder on JavaEE application server) - OSGi Bundle Repository: to deploy OSGi components and their dependencies - OSGi Deployment Admin: to deploy a set of OSGi bundles inside one deployment package - Apache Ace: to manage the deployment on a set of OSGi runtime Finally, Chameleon provides distributions, i.e. specific configured stacks containing a set of selected component to fit one domain such as web applications, lightweight servers … When you download a distribution, you have all what you need to run the Chameleon. But you can always extend / customize it to fit your needs. The Chameleon project aims to provide a simple way to lay out specific OSGi runtimes to fit your requirements. It aims to do this by providing a layered stack. Each layer focuses on a specific part of the system, from the underlying runtime to a service catalog containing useful and reusable services. The Chameleon service catalog lists services and their implementations. This catalog focuses on the service concept and implementations are substitutable. This means that you can choose your implementations according to your requirements and switch between them dynamically. The catalog not only contains services defined and implemented in OW2 Chameleon, but also standard OSGi services as well as other services. The infrastructure layer contains a set of frameworks to: * Interact with remote services and deal with distributed event protocols * Introspect the current state of the system * (Re-) configure the system * Administer the system and the applications Chameleon doesn't define one single way to deploy components, but instead supports several mechanisms such as: * Apache Felix FileInstall: to easily install bundles locally (like the 'deploy' folder on a JavaEE application server) * OSGi Bundle Repository: to deploy OSGi components and their dependencies * OSGi Deployment Admin: to deploy a set of OSGi bundles inside one deployment package * Apache Ace: to manage the deployment of a set of OSGi runtimes Finally, Chameleon provides distributions: specific configured stacks containing a set of components selected to fit a particular domain (such as web applications or lightweight servers). When you download a distribution, you have everything you need to run the Chameleon. However, you can also extend and customize it to suit your needs.
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