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Bringing HLA to the Web: The Incorporation of Enterprise Java Technology into HLA Federations

机译：将HLA带到网络：将企业Java技术纳入HLA联合会

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As the Java platform evolves and matures, many opportunities arise for the integration of Web technology into HLA federations. In particular, Java Servlets and Enterprise Java Beans (EJBs) provide attractive mechanisms for constructing Web Browser-based interfaces to simulation data. This paper describes techniques for using Java Servlets, EJBs, and Java Federate application components to extend web server functionality in support of browser-based federation management. In the approach taken here, Servlets are used as an RTI interface for a web server, thereby making the web server a working HLA federate. To provide maximum flexibility in managing federation activities, small Java-based agent federates run on all machines on the simulation network, and communicate with the web server over the RTI via a management-specific "meta-federation." The Java "meta-federates" can then perform activities such as launching simulation federates, collecting low-level performance data, etc. These activities are controlled and monitored with a web browser acting as a client to the RTI-aware web server. This framework would, for example, allow management of multiple federations in diverse locations via the Internet from a palmtop-sized computer. While the specific application of the technology presented here emphasizes federation management, the underlying techniques are generally extensible to the creation of a web-based interface to any kind of simulation data.
机译：随着Java平台的发展和成熟，许多机会都是为了将​​Web技术集成到HLA联合会中。特别是，Java servlet和企业Java Beans（EJB）的为构建基于Web浏览器界面仿真数据有吸引力的机制。本文介绍了使用Java Servlet，EJB和Java Federve Application组件的技术，以扩展Web服务器功能，以支持基于浏览器的联合管理。在这里采取的方法中，Servlet用作Web服务器的RTI接口，从而使Web服务器成为HLA联合的工作。为了在管理联合活动中提供最大的灵活性，基于小型Java的代理联合会在仿真网络上的所有机器上运行，并通过管理专用的“元联合”在RTI中与Web服务器进行通信。然后，Java“Meta-Federates”然后可以执行启动模拟联合，收集低级性能数据等的活动等活动。使用作为客户端的Web浏览器控制和监控这些活动，以作为客户端到RTI感知Web服务器。例如，该框架将允许通过来自Palmtop大小的计算机的Internet在不同位置管理多个联合的管理。虽然这里呈现的技术的具体应用强调联合管理，但底层技术通常是可扩展的，以创建基于Web的界面到任何类型的模拟数据。

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