A component-based middleware platform for reconfigurable service-oriented architectures

摘要

The Service Component Architecture (SCA) is a technology-independent standard for developing distributed Service-oriented Architectures (SOA). The SCA standard promotes the use of components and architecture descriptors, and mostly covers the lifecycle steps of implementation and deployment. Unfortunately, SCA does not address the governance of SCA applications and provides no support for the maintenance of deployed components. This article covers this issue and introduces the FraSCAti platform, a run-time support for SCA with dynamic reconfiguration capabilities and run-time management features. This article presents the internal component-based architecture of the FraSCAti platform, and highlights its key features. The component-based design of the FraSCAti platform introduces many degrees of flexibility and configurability in the platform itself and it can host the SOA applications. This article reports on micro-benchmarks highlighting that run-time manageability in the FraSCAti platform does not decrease its performance when compared with the de facto reference SCA implementation: Apache Tuscany. Finally, a smart home scenario illustrates the extension capabilities and the various reconfigurations of the FraSCAti platform.