Development of Object-Oriented, Network-Distributed Online Environment

采用面向对象（OO）技术和网络分布式体系结构，开发了一个在线系统，称为KONOE。网络分布式体系结构需要对象持久性。该项目的主题是对象持久性的实现。包括它在内，已经构建了一个涵盖非常广泛类别的类库。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衔接，已经包含了一个带有c++类包装的Tcl/Tk版本。最近，一个GTK+版本也正在开发中。为了评价所开发软件的性能，在KEK-PS加速器上为T473测试束流实验提供了数据采集系统。虽然它是一个相对较小的DAQ系统，大约有100个读出通道，但从CAMAC系统的读出，存储，在线分析和监测等功能分布到4台PC上。作为一个完整的系统性能，达到200赫兹的DAQ率，并证实了其可用性。并指出了该软件有待改进的问题。所开发的类库源代码、相关文档、测试梁实验中使用的程序可从http://www.konoe.kek.jp /获得。这些都是开放给大家作为一个公共领域的软件。

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.