NonStop CORBA应用与legacy系统的集成技术

在利用NonStop CORBA技术开发大型企业级应用系统时,必然要将许多非CORBA的client/server(即legacy系统)集成到CORBA应用系统中来,为了不重写legacy系统代码,必须采用一种包装技术.详细阐述了可实现legacy系统与CORBA应用集成的legacy包装技术.采用该技术创建的legacy wrapper是一个CORBA 程序,它通过对legacy系统进行封装,从而使得legacy系统可集成到CORBA应用中.以C pathsend client wrapper为例,分析了legacy client wrapper的创建步骤,给出了详细的编程细节.该技术已应用于多个NonStop CORBA应用系统中.

Technique for integrating NonStop CORBA program with legacy system

To develop business-critical enterprise application based on NonStop CORBA technique, lots of existing non-CORBA-based client/server, i.e. legacy systems, should be integrated into the application, and wrapping technique should be used to avoid rewriting the codes of the legacy systems. Legacy wrapping technique that enables a CORBA-based program to interoperate with legacy system is introduced in detail. With the technique, legacy wrapper, which is a NonStop CORBA program that wraps around a legacy system so that the legacy system can be integrated with CORBA programs, is created. Taking C~\{ \} pathsend client wrapper as an example, steps for creating legacy client wrapper are presented and significant codes are given in detail. The technique has been used in several NonStop CORBA applications.