摘要:
基于OMG组织颁布的实时系统中数据分发服务最新标准设计了一个新的发布/订阅中间件,实现了分布式环境中以数据为中心的数据实时传输,解决了分布式实时系统中服务质量约束和单点失效等问题。提出一种全局数据空间管理策略,解决了通信节点动态增删问题。该模型与CORBA规范和其他发布/订阅模型相比,具有较好的灵活性、实时性、可扩展性和可靠性。
关键词:
发布/订阅,
中间件,
数据分发服务,
服务质量
Abstract: This paper designs a new publish/subscribe middleware based on data distribution service(DDS), which is published by OMG. Data centric-data real-time transferring in distributed environment is realized, and QoS restriction and a single point of failure are solved. Dynamical adding and deleting of communication nodes are realized by managing global data space in a special way. Compared with CORBA and other publish/subscribe models, this middleware is more flexible, realtime, scalable and reliable.
Key words:
publish/subscribe,
middleware,
data distribution service(DDS),
QoS
中图分类号:
曹万华;谢 蓓;吴海昕;程 雄. 基于DDS的发布/订阅中间件设计[J]. 计算机工程, 2007, 33(18): 78-80,8.
CAO Wan-hua; XIE Bei; WU Hai-xin; CHENG Xiong. Design of Publish/Subscribe Middleware Based on DDS[J]. Computer Engineering, 2007, 33(18): 78-80,8.