Amobile agent system using reflective computation

在本研究中，我们提出了一种有效的基于反射技术的移动代理开发方法。利用所提出的方法，我们还实现了一个以电子邮件为通信媒介的移动代理系统Flyingware。移动代理系统的第一个优点是易于程序员使用。传统的移动代理系统要求以太坊程序员必须提前手工指定所有必要的程序，或者必要的程序必须按需转移。在我们的系统中，程序员只指定迁移后应该调用的对象和方法。这种简单性是通过使用反射技术实现的。采用反射技术收集必要的程序并自动传输。移动代理系统的第二个优点是使用电子邮件作为通信媒介。这意味着不需要特殊的服务器或地方，而传统系统需要这样的设施。第三个优点是使用Java编程语言。这扩大了所实现的移动代理系统的应用领域。在本研究中，我们还基于反射技术构建了OpenJava和Javassist两个语言处理系统。此外，我们应用反射技术来实现并行编译器。我们还研究了移动代理的安全执行环境。

In this research, we have proposed an effective development method of mobile agents based on the reflection technology. By using the proposed method, we have also implemented a mobile agent system called Flyingware, which makes use of e-mail as the communication media.The first advantage of the mobile agent system is easiness for programmers to use the system. Conventional mobile agent systems require that ether programmers have to specify all the necessary programs in advance by hand, or necessary programs have to be transferred on demand. In our system, the programmers specify only the object and the method that should be invoked after migration. This easiness is accomplished by use of the reflection technology. Necessary programs are collected by using the reflection technology and transferred automatically. The second advantage of the mobile agent system is use of e-mail as the communication m'edia. This means that no special server or place is needed while the conventional system required such facility. The third advantage is the use of the Java programming language. This enlarges the application field of the implemented mobile agent system.In this research, we have also built two language processing systems, called OpenJava and Javassist based on the reflection technology. Furthermore, we applied the reflection technology to implement parallelizing compilers. We also worked on the safe execution environments for mobile agents.