Unified Service Platform for Accessing Grid Resources

²Web Services Resource Framework (WSRF) redefines Grid Services standards and extends Web Services by adding stateful resources. Using GT4 to develop WSRF Grid Services is a taxing work, and it is difficult to build and deploy these services dynamically. Addressing these issues, this paper proposes a unified service platform which can provide a series of unified service interfaces for accessing kinds of different Grid resources. On the platform, Grid resources are independent of the service interfaces. The platform provides unified service interfaces to access different Grid resources on server, so Grid services developers only pay attentions to realizing the native methods of Grid resources and configuring necessary resource database. The remainder work of composing typical Grid Services such as mapping the resources into the service interfaces would be automatically finished by the platform. It means that Grid Services development becomes native application development. What is more, there are no needs to restart the service container when deploying/undeploying Grid resources, so it does not affect other resources. The platform provides service-users with two types of clients, one is for directly invoking the unified interfaces and the other is a proxy client associating to the specific Grid resource. Finally, the test shows that the service development and deployment is much easier on this platform and the service performs well.