Research On Aspect-Oriented Middleware For Cyber Physical System And Distributed Real-Time System

With the network and information technology develop, the current computing environment is undergoing profound changes, making the application areas of distributed real-time systems become more widespread. With the new applications in the field of computer software appear, like the pervasive computing and autonomic computing. The requirements of customization and dynamic adaptation in the actual application which based on distributed systems and middleware platforms have increased. Currently, two highly complementary technologies-aspect-oriented programming and reflective middleware technology has been applied to address these challenges. However, these two technologies is still considered isolated from each other. If we can combine these two technologies,then they will better support the dynamic distributed systems engineering.Correspondingly, as a basis software of applications, middleware has become a key support software in distributed real-time systems for development, integration, deployment, operation and management. According to the changes of run-time contexts, the distributed real-time system middleware itself can dynamically adaptive tailor and reconfigure the structures and behavior to provide real-time application the real-time and reliable services, but the traditional object oriented middleware does not have this ability.But the current object-oriented middleware has inadequate in this area.The purpose of aspect-oriented software development is using aspect to modularize the crosscutting concerns. By the use of aspect-oriented software development methods to middleware development process, we can eliminate many problems which in traditional middleware.Modern computing infrastructure, such as middleware, are made up of layers of software functionality that have evolved over decades to support the broadest range of applications. However, moden middleware tends to be excessive for Cyber-physical System (CPS) which has a source of feature-richness and many layers of functionality. Yet it is necessary to leverage the decades of proven patterns and principles in these infrastructures.For the CPS system which requires aspect-oriented middleware requirements, This paper focuses on research from the following parts:First, the article does a comprehensive summary of the status of reserch. This part includs aspect-oriented middleware, real-time middleware, aspect-oriented real time mid-dleware and so on. Then the paper describes some of the basic theory.Secondly, we do systemic analysis of aspect-oriented middleware.Finally, we analysis reflection and aspects of the existing area of research, mainly from two aspects:First, from the aspects of programming languages and middleware, Second, from the core model of the aspects and the reflect. In the above analysis based on the principles established, we get a dynamic aspect-oriented meta-space middleware platform. At the same time, a kind of middleware using AOP technology to professional. We inferred from the results of this study:In the automatic specialization middleware, AOP technology can play an important role.