网格计算中基于软件架构的自适应性方法研究

Adaptation Based On Software Architecture for Grid Computing

网格应用必须不断地动态适应变化的环境。在许多情况下,适应性在每个应用基础上是以专案化的方式实现的,条件或环境一旦改变,原来的适应机制就会无效。文章描述了使适应性一般化的软件机制,以便运用一个越过应用的适应性框架实现适应性。这个框架利用系统的软件架构模型去分析应用是否需要这种适应性,并允许将修复代码写入架构模型的上下文中,然后传递到运行系统。

Grid application must increasingly self- adapt dynamically to the changing environments. In most cases, adaptation has been implemented in a specific fashion on per application basis. If condition or environment changes, the adaptation will be invalid. The paper describes working mechanism which generalizes adaptation so that it can be used across applications by providing an adaptation framework. This framework uses a software architectural model of the system to analyze whether the application requires adaptation, and allows repairs to be written in the context of the architectural model and propagated to the running system.