面向多运营商的运营支撑服务平台关键技术研究
文献类型：学位论文
| 作者 | 刘磊 |
| 学位类别 | 博士 |
| 答辩日期 | 2008-06-02 |
| 授予单位 | 中国科学院声学研究所 |
| 授予地点 | 声学研究所 |
| 关键词 | 运营支撑服务 产品模型 数据集成 实例级权限控制 对象关系映射 企业级Java组件 |
| 其他题名 | Research on Key Technologies of Business Operation Support Service Platform Oriented to Multi-operators |
| 学位专业 | 信号与信息处理 |
| 中文摘要 | 随着通信技术和网络技术的发展，传统电信网、互联网、有线电视网等各类异构网络的融合已经成为发展趋势，同时人们对网络业务的需求也呈现出多样化、综合化和个性化。在此背景下，研究网络融合环境下的面向多运营商的业务运营支撑技术是目前网络业务发展的迫切需求。 随着网络层和业务层之间的标准协议和开放式API的提出，在网络融合环境下提供运营支撑服务已成为可能。本文针对面向多运营商的运营支撑服务平台关键技术进行了深入的研究，主要包括运营支撑服务平台架构、平台内各节点之间的数据访问技术、数据访问权限控制技术、单节点中对象关系映射工具技术和原有系统组件的升级技术等。 本文的主要研究成果如下： 1，提出了一种面向多运营商的运营支撑服务平台。该平台复用原有面向单一运营商的运营支撑系统的部分组件，并在业务开通流程、计费流程、产品模型等方面进行了改进。 2，提出了一种分布式数据的透明访问方法。该方法利用分布式共享JNDI服务绑定分布式数据索引和服务提供点，并采用分布式数据索引Java注释和基于拦截器的服务代理，使各节点通过本地服务接口透明访问运营支撑服务平台中的分布式数据。 3，提出了一种数据的实例级访问权限控制方法。该方法以RBAC的Java认证和授权服务为基础，在数据访问层采用安全注释框架和规则引擎技术，提高了运营支撑服务平台数据的访问权限控制粒度，降低了访问权限控制策略与业务逻辑的耦合度。 4，提出了一种对象关系映射工具的性能优化方法。该方法针对运营支撑服务节点的Web服务，通过统计分析HTTP请求处理过程中，不同URL对应的对象关系映射工具加载的和实际使用的实体对象属性，改进对象关系映射工具的数据库查询语句生成和结果集的加载策略，使得在后续请求中根据URL仅加载对象必需属性，提升了Web服务的性能。 5，针对原有系统基于EJB2组件的升级问题，提出了一种自EJB2向EJB3的代码自动转换规则。该规则通过增加无状态会话Bean，替代会话Bean和容器管理实体Bean中原Home接口的功能，保证了EJB客户端在升级前后的访问一致性；并且提出了处理容器管理实体Bean的各种关联关系赋值规则的通用算法，保证了升级后的应用与原应用的逻辑一致性。 |
| 英文摘要 | As development of communications and network technologies, the convergence of the traditional telecommunications network, Internet, cable television network, and other heterogeneous network has become a trend, while the services needed by people have become diversified, comprehensive and personalized. So research on technologies of business operation support oriented to multi-operators in a converged network is an urgent need. With the standard protocols and open APIs for network functions introduced, it’s possible to provide business operation support service in a converged network. This thesis gives further studies on the key technologies of business operation support service platform oriented to multi-operators, including the architecture of the platform, and technologies of data access among the nodes of the platform, data access control, Object-Relational Mapping (ORM) tools and migrating the legacy EJB2-based components to EJB3-based components. The main research contributions of the thesis include: 1. A kind of business operation support service platform oriented to multi-operators is proposed. The platform reuses some components of the legacy business operation support system. Significant improvements have been made to the product model, fulfilling services workflow and billing workflow of the platform. 2. A distributed data access scheme is proposed. By binding service provider points to the distributed shared Java Naming and Directory Interface (JNDI) service, this scheme uses the distributed index annotation and the interceptor-based proxy to make the distributed data of the business operation support service platform accessed through the local service interfaces. 3. An instance-level data access control scheme is proposed. Based on the rule-based Java authentication and authorization service, the scheme uses the security annotation framework and the rule engine to achieve instance-level data access control and decomple the security strategies from the business logic. 4. A kind of method to optimize performance of ORM tools is introduced. By analyzing the fields of objects loaded and used exactly in each HTTP request, the ORM tools are made only load the required fields to improve the performance of the persistence layer. 5. The thesis provides a rule for migrating the EJB2-based components to EJB3-based components. The rule is to ensure no modifications of the legacy code of EJB clients by adding a stateless session bean to each session bean or container-managed entity bean to take the responsibility of the home interface. A general algorithm is introduced to process the assignment rules for relationships among entity beans with Container-Managed Persistence (CMP) to avoid logical errors in migrating from the legacy CMP based applications to Java Persistence API based applications. |
| 语种 | 中文 |
| 公开日期 | 2011-05-07 |
| 页码 | 135 |
| 源URL | [http://159.226.59.140/handle/311008/330]  |
| 专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 刘磊. 面向多运营商的运营支撑服务平台关键技术研究[D]. 声学研究所. 中国科学院声学研究所. 2008. |
入库方式： OAI收割
来源：声学研究所
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