Dynamic reconfiguration of component-based applications

Component based programming is a current trend in the development of software. The application is created using components and binding their interfaces appropriately at the configuration level. This is especially interesting for applications that, for availability reasons, claim for dynamic reconfiguration. This paper describes an approach for dynamic reconfiguration of applications based on CORBA components running in an environment called LuaSpace that is composed by the dynamically typed language Lua and a set of tools based on Lua. Components, scripts and glue code are the elements that form an application expressed in Lua. LuaSpace provides support for both programmed and ad-hoc reconfiguration. Although our work focuses at configuration level, LuaSpace also handles components updating.