Research And Application Of Auction System Based On WSRF

Simply speaking, the future Internet technology—grid integrates numerous computer resources in Internet together to be a virtual super computer, which realizes the full-scale sharing of all kinds of resources, eliminates the islands which are lack of resources. People found the importance of grid architecture when they did research on grid computing. Only after the reasonable grid architecture was constructed, grid can play its role efficiently. With the influence of industry which is represented by IBM, Ian Foster and others proposed the open grid service architecture (OGSA) after they considered the development and influence of web technique. After the proposal of OGSA, GGF began to research on the draft of open grid service infrastructure (OGSI). OGSI criterions play great emphasis on the difference between grid service and web service, and they don't discriminate resource and service, as a result, grid service and web service can't combine with each other better than before.In order to resolve the contradiction between OGSI and web service, IBM, BEA and Microsoft distributed WS-Addressing protocol together. The Globus alliance and IBM proposed web service resource framework (WSRF) based on WS-Addressing protocol quickly. WSRF defines a series of criteria which are about accessing status resource by using web service. WSRF includes the life cycle of web service resource, updatable citation of web service, attributes of web service resources, service group of web service, and basic error criteria of web service.Although web services do not maintain the status information during their interaction, their interaction needs to consider status operations frequently. That's to say, the value of data keeps persistent through web service interaction, and saves as the result of web service interaction. This is the main objective of WSRF criteria, combining web service and status. WSRF adopts the definition which is different from web service, in this definition, resource is with status, while service is without status, and the definition proposes the concept of web service resource.This thesis introduces the basic concepts of grid, and introduces OGSA and WSRF in general firstly, then it introduces the realization steps, deployment and distribution of WSRF status services in details, which is the realization of status services and non-status services combined together emphasized by WSRF criteria. Finally, Auction designed as the simple application of WSRF criterions, realizes part of WSRF criteria, and they are resources' creation, Auction quote price, destruction of resources and the detection of status changes. The author got deep understanding about grid knowledge through the study and research work in this thesis. When grid is widely used as the next generation network in the future, research on WSRF will be more valuable than before.