Towards Automatic Creation of Web Services for Grid Component Composition
While high-level software components simplify the programming of grid applications and Web services increase their interoperability, developing such components and configuring the interconnecting services is a demanding task. In this paper, we consider the combination of Higher-Order Components (HOCs) with the Fractal component model and the ProActive library.
HOCs are parallel programming components, made accessible on the grid via Web services that use a special class loader enabling code mobility: executable code can be uploaded to a HOC, allowing one to customize the HOC. Fractal simplifies the composition of components and the ProActive library offers a generator for automatically creating Web services from components composed with Fractal, as long as all the parameters of these services have primitive types.
Taking all the advantages of HOCs, ProActive and Fractal together, the obvious conclusion is that composing HOCs using Fractal and automatically exposing them as Web services on the grid via ProActive minimizes the required efforts for building complex grid systems. In this context, we solved the problem of exchanging code-carrying parameters in automatically generated Web services by integrating the HOC class loading mechanism into the ProActive library.
KeywordsCoreGRID Component Model (GCM) & Fractal Higher-Order Components
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- The Apache SOAP web site. http://ws.apache.org/soap.Google Scholar
- The AXIS web site. http://ws.apache.org/axis.Google Scholar
- The CoreGRID web site. http://coregrid.net.Google Scholar
- The ProActive web site. http://www-sop.inria.fr/oasis/ProActive.Google Scholar
- CORBA/IIOP v3.0.3. Object Management Group, 2004. OMG Document formal/2004-03-01.Google Scholar
- The Java Architecture for XML Binding 2.0, early draft v0.4. Sun Microsystems, 2004.Google Scholar
- G. Allen, K. Davis, T. Goodale, A. Hutanu, H. Kaiser, T. Kielmann, A. Merzky, R. v. Nieuwpoort, A. Reinefeld, F. Schintke, T. Schtt, E. Seidel, and B. Ullmer. The Grid Application Toolkit: Towards generic and easy application programming interfaces for the grid. In Proceedings of the IEEE, vol. 93, no. 3, pages 534–550, 2005.CrossRefGoogle Scholar
- F. Baude, D. Caromel, and M. Morel. From distributed objects to hierarchical grid components. In International Symposium on Distributed Objects and Applications (DOA), Catania, Sicily, Italy, 3–7 November, 2003.Google Scholar
- M. I. Cole. Algorithmic skeletons: a structured approach to the management of parallel computation. MIT Press & Pitman, 1989.Google Scholar
- J. Dünnweber, A. Benoit, M. Cole, and S. Gorlatch. Integrating MPI-skeletons with Web services. In Proceedings of the PARCO, Malaga, Spain, 2005 Google Scholar
- J. Dünnweber and S. Gorlatch. HOC-SA: A grid Service Architecture for Higher-Order Components. In International Conference on Services Computing (SCC04), Shanghai, China, pages 288–294, Washington, USA, 2004. IEEE computer.org.Google Scholar
- S. Gorlatch and J. Dünnweber. From grid middleware to grid applications: Bridging the gap with HOCs. In Future Generation Grids. Springer Verlag, 2005.Google Scholar
- OASIS Technical Committee. WSRF: The Web Service Resource Framework, http://www.oasis-open.org/committees/wsrf.Google Scholar