Abstract

Web Services Resource Framework (WSRF)redefines Grid Services standards and extends Web Servicesby adding stateful resources. Using GT4 to develop WSRFGrid Services is a taxing work, and it is difficult to build anddeploy these services dynamically. Addressing these issues,this paper proposes a unified service platform which canprovide a series of unified service interfaces for accessingkinds of different Grid resources. On the platform, Gridresources are independent of the service interfaces. Theplatform provides unified service interfaces to access differentGrid resources on server, so Grid services developers only payattentions to realizing the native methods of Grid resourcesand configuring necessary resource database. The remainderwork of composing typical Grid Services such as mapping theresources into the service interfaces would be automaticallyfinished by the platform. It means that Grid Servicesdevelopment becomes native application development. What ismore, there are no needs to restart the service container whendeploying/undeploying Grid resources, so it does not affectother resources. The platform provides service-users with twotypes of clients, one is for directly invoking the unifiedinterfaces and the other is a proxy client associating to thespecific Grid resource. Finally, the test shows that the servicedevelopment and deployment is much easier on this platformand the service performs well.