基于前置层和消息总线的数据传输

Date Transmission Based on Hierarchical Front-Frame and Message Bus

大量模块或者第三方数据接入以及上层用户定制应用需求的繁杂性必定要求系统在数据传输上具备灵活、通用、可扩展等性能,因此设计和实现一种驿站中间层数据传输方案成为开发人员的一项关键任务.数据接入方面增加统一处理数据的前置层,设计中采用链路连接层、规约处理层、前置管理层的架构并构建了前置实时数据处理库;考虑到跨平台和数据类型区分处理清晰原则,构建了以ICE中间件和JSON串为核心的消息总线数据传输,设计与上层应用程序和前置模块的交互接口.总线传递机制将应用软件层和前置层区分来,按照协定好的消息类型通过总线实现信息交互,屏蔽了系统的多种不同的上层应用需求和前置开发通信协议特性,提高了开发人员的工作效率以及系统本身的健壮性、扩展性,同时也降低了后续维护人员的维护难度.

Numerous modules or third-party data access and multifarious upper application require system data transmission with flexible, universal and extensible performance. Therefore, a middle layer data transmission design becomes a key task of developers. Add front layer in data access, which uses the structure of communication link layer, protocol processing layer, management layer, and front real-time data processing library. Considering the clear principle of cross-platform and data type distinction, the message bus data transmission with ICE middleware and JSON string as the core is constructed and the interaction interface between upper application and front module is designed. The bus transfer mechanism separates the application software layer from the pre-layer, and implements the information exchange through the bus according to the agreed message types. It shields the system＇s various upper-layer application requirements and the pre-developed communication protocol characteristics, and improves the developer＇s work efficiency and the system＇s robustness, scalability, and also reduces the follow-up maintenance personnel to maintain the difficulty.