Abstract:
Today mobile computing is pervasively taking over the traditional desktop computing.
Mobile devices are characterized by abrupt and un-announced changes in execution
context. The applications running on these devices need to be autonomous and thus
dynamically adapt according to the changing context and can be customized to fit into
devices ranging from PDAs and sensors to powerful desktops and mini-computers.
Existing middleware support for the typical distributed applications is strictly based on
component technology. Future mobile applications require highly dynamic and adaptive
services from the middleware components i.e. autonomic adaptation. Traditional
middleware do not address this emerging need of wide ranges of mobile applications
mainly because of their monolithic and inflexible nature. It is hypothesized that such
application adaptation can be achieved through meta-level protocols that can reflect and
change the state and behaviors of the system. We integrate Component technology with
our active Meta Object Protocols in Location-driven Reflective-middleware for
Autonomic Applications. This paper implements the application adaptation service of this
middleware. It specializes the concept of Meta Object Protocols for autonomic adaptation
of mobile applications. ActiveMOP provide robust and highly flexible framework for
autonomic component development for mobile applications. It proved to be a very simple
and powerful way to programmatically develop location-driven applications based on
autonomic components.
