OSGi框架下基于LDAP的异构遥感服务调用机制研究

发布时间：2018-02-27 19:45

本文关键词： 异构服务 OSGi LDAP 元数据管理生命周期管理　出处：《计算机应用研究》2017年03期 　论文类型：期刊论文

【摘要】：针对异构遥感算法服务集成方法在元数据和生命周期管理方面的不足,提出了在OSGi框架下基于LDAP的异构服务调用机制。该机制设计了一个异构服务代理,将异构服务封装为OSGi bundle服务,实现服务生命周期管理,并结合LDAP技术实现异构服务元数据管理;同时引入工作流引擎技术,搭建了一个异构服务交互调用的原型系统。通过遥感NDVI产品生产实验表明,该方法不仅能灵活地调用多种异构的遥感算法服务,且能有效地管理服务元数据及其生命周期。性能分析表明,该方法也为遥感数据分布式处理提供了一种有效的解决方案。
[Abstract]:Aiming at the deficiency of heterogeneous remote sensing algorithm service integration method in metadata and lifecycle management, a heterogeneous service invocation mechanism based on LDAP under the framework of OSGi is proposed, and a heterogeneous service agent is designed. The heterogeneous services are encapsulated into OSGi bundle services to realize the service life cycle management, and the heterogeneous services metadata management is realized by combining with the LDAP technology, and the workflow engine technology is introduced. A prototype system of interactive invocation of heterogeneous services is built. The experiments of remote sensing NDVI product production show that this method can not only flexibly call a variety of heterogeneous remote sensing algorithm services. And it can manage the service metadata and its life cycle effectively. The performance analysis shows that this method also provides an effective solution for distributed processing of remote sensing data.
【作者单位】：武汉大学遥感信息工程学院;武汉大学计算机学院;中船重工第709研究所;
【基金】：高分辨率对地观测系统重大专项(民用部分)高分水利遥感应用示范系统(一期)(08-Y30B07-9001-13/15) 地理国情监测国家测绘地理信息局重点实验室基金资助项目(250000442)
【分类号】：TP79

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