DREAM: a Component Framework for the Construction of Resource-Aware, Configurable MOMs

In this paper, we present Dream, a component-based software framework for the construction of resource-aware message-oriented middleware that can be assembled statically or dynamically. Dream is based on Fractal, a recent component model featuring hierarchical composition, component sharing and component binding. Dream allows building different forms of message-oriented middleware, from distributed message queues to content-based publish/subscribe systems. This paper describes the main elements of the Dream framework, discusses its implementation, and evaluates its effectiveness. We show that message-oriented middleware built using Dream compare very favorably with non-configurable, functionally equivalent middleware, while allowing finer-grain control over resource consumptions and providing run-time configurability.