Holographic view language hvl4dcam for aspectual middleware platform

Aspectual middleware platform DCAM is a middleware computing environment, which satisfies the self-adaptability requirements of on-demand computing and supports the real-time reconstruction of system platform. Based on the analysis of the existing aspect-oriented architecture description languages, this paper proposes a kind of holographic view language HVL4DCAM for middleware platform based on XML language. HVL4DCAM can be used to describe the states of components and aspects running on DCAM platform and the dynamic relationship between them. HVL4DCAM is a symmetrical aspect-oriented architecture language and improves the reusability of aspects. A performance assessment system running on DCAM platform is described in HVL4DCAM as a case study.