Corba Middleware Is A Flexible, Efficient Orb Core Research And Design

CORBA is the current popular interoperability technology, which makes the development of the distributed object application more convenient and rapid. As the hinge of communication and bottom layer facilities of CORBA, ORB holds an important position in CORBA, it is the bottleneck which influcing the system efficiency and flexibility. In order to meet the requirement of distribute object computing on complicated application system and support the development of the distribute application, this article presents an infrastructure of ORB which realizes scalable > customizable > fexible and high-efficient capability of CORBA, design and implements a high-efficent communication facilities and the minimum core framework of ORB which could dynamically load system component. The improvement of communication facilities embodies the optimization of thread policy, connection policy and the optimization of method dispatch. The minimum ORB core framework implements a least ORB core, which could deloy and manage the system by the XML files, and dynamically loading system component and communication protocal component.Base on the designed ORB, system completes the integration of Message-Oriented Middleware. This paper presents a communication mechanism conforming to the CORBA specification, which can embed the MOM into ORB, completes core migration from MOM to Object-Oriented middleware, assures the reliability; high-effectiveness;security; and real-time quality in the message transmission and supports the "stop-and-forward" of the message, and compatible of the traditional applications.