Development of Object-Oriented, Network-Distributed Online Environment

开发了一个在线系统，称为Konoe，采用了面向对象(OO)技术和网络分布式体系结构。网络分布式体系结构要求对象持久化。该项目的主题是实现对象持久化。包括这一点，已经建立了一个涵盖非常广泛的类别的类库。几乎所有的部分都是用C++语言描述的。在图形用户界面方面，虽然在开发的第一阶段使用了Java语言，但为了与其他部分保持无缝连接，还包括了带有C++类包装的TCL/Tk版本。最近，GTK+版本也在开发中。为了评估所开发的软件的性能，在KEK-PS加速器的T473试验束实验中提供了数据采集(DAQ)系统。虽然这是一个相对较小的数据采集系统，只有大约100个读出通道，但从CAMAC系统的读出开始，存储、在线分析和监测等功能分散到4台PC机上，作为一个完整的系统性能，数据采集率达到了200 Hz，证实了它的可用性。开发的类库源代码、相关文档、测试束实验中使用的程序可从http：//konoe.kek.jp/获得。这些软件作为公共领域软件对所有人开放。

An online system has been developed, which is called as KONOE and employs an object-oriented (OO) technology and a network distributed architecture. The network distributed architecture requires an object persistency. The main theme of the project was implementation of the object persistency. Including this, a class library covering very wide range of categories has been built. Almost all part is described using the C++ language. As for the graphical user interface, though the Java language was employed at the first stage of the development, a Tcl/Tk version with a C++ class wrapping has been included so as to keep seamless with other parts. Recently, a GTK+ version is also being developed.In order to evaluate the performance of the developed software, a data acquisition (DAQ) system was supplied to the T473 test beam experiment at the KEK-PS accelerator. Although it was a relatively small DAQ system with about 100 read-out channels, from the read-out of the CAMAC system, the storage, the online analysis and the monitoring and other functions were distributed to 4 PC's. As a full system performance, 200 Hz of DAQ rate was achieved and its usability was confirmed. Also, various issues were pointed out for improvement of the software.Source codes of the developed class library, related documents, programs used in the test beam experiment are available from http : //konoe.kek.jp/. These are open for everyone as a public domain software.