Design And Implement Of The Data Access Platform For Unified Information System

In order to improve the management efficiency of equipment and information utilization,implement access,monitoring and maintenance these remote management of the network equipment including routers,DTU(Data Transfer Unit),we develop a M2 M Clouds Management System of all equipment for access and management,based on the original integrated network management platform.In the process of developing the system,there exists problems brought by the system development history,such as differences of data between equipment and interface,continuous change of business and user demand,diversity of application types,heterogeneous of data storage systems and so on.These problems seriously increase the repetitive work of developers and cause the low efficiency of the system development.Aiming to the management mode difference issue caused by equipment data acquisition and storage in M2 M Clouds Management System,the thesis mainly completed the following aspects of the work:(1)We design a unified data access platform,using resources to represent the data requirements of business and users.On one hand,we use the concept of resources to carry out the consistency format package of the business data,which shields the format differences of the underlying devices and data storage systems for the upper application.One the other hand,in order to solve the problem of data access interface differences of the underlying devices and data storage systems,we use Restful API to provide a consistent resource access interface for the upper application.The platform solved the problem of heterogeneous data source in the M2 M Clouds Management System and ensured machine/man readability of data.(2)In order to ensure the scalability and maintainability of the unified access platform,this thesis defined the metadata that can be a text representation of a resources,and used agent mechanism to acquire data and format pattern from different data sources.These processes simplify the design and implementation of the platform,and make the maintenance tasks of resource publishing and management to be more simple and convenient.(3)In this thesis,we designed resources and security level of its data,based on access control mechanism of role.In the process of resource encapsulation,data security level is matched with the security level of the user or business,which ensures that the user or business can only access authorized data and enhance data security.In this thesis,we formatted data structure of resources by JSON,and used Restful API as resource access interface for services in the upper application;A unified data access platform proposed in this thesis is complemented basing on Node.js;Some modules in existing M2 M Clouds Management System are evaluated via test tool.The applications of part of the module in M2 M clouds management system,also prove that the scheme designed in this thesis can effectively solve the problem of secure access to heterogeneous data sources.