Middleware based runtime monitoring and analyzing framework

Runtime software monitoring and analyzing is not only the approach to improve the quality of software, but also the basis of adaptive software. This paper proposes a pattern-based declarative approach to specify constraints. Based on this approach we implemented a runtime monitoring and analyzing framework on J2EE middleware PKUAS. The most special points of the framework are the flexibility of deploying probes and business logic oriented monitoring. In the end, the paper describes the implementation details and evaluation result of the framework.EI0SUPPL. 2124-1283