Research on Model of Dual Core Aspectual Middleware & Dynamic Weaving Technology

This paper introduces the architecture and implementation of three typical middleware platforms, and analyzes their common deficiencies. As an improvement, this paper presents a new model of aspectual middleware called DCAM. DCAM is a hierarchical model, which introduces aspect-oriented functional support into the core layer as well as extension mechanisms of services and container. Compared with current models, DCAM has better architecture extensibility, greater manageability of dependency relationships and finer supporting granularity of AOP. Then the implementation of a dynamic aspect weaver (DAWeaver) based on BCEL classes library is presented. At last, this paper conducts a performance analysis of DCAM and DAWeaver.