Method and apparatus of automatic method signature adaptation for dynamic web service invocation

a dynamic web service and automatic method technology, applied in the field of dynamic ebusiness applications, can solve the problems of manual processes taking time, e-business integration, and hard to match input parameters and outputs

Inactive Publication Date: 2003-11-20
IBM CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the dynamic e-business area, it is very hard to match the input parameters and output result format in advance for the Web services Invoke in the e-business application.
Therefore, heterogeneous Web Services are going to be a fact of life for a while, which poses problems for dynamic e-business integration.
Such manual processes take time and cause errors.
The need for a manual process to construct and match input parameters for Web Services is a result of the limited information defined in current WSDL for Web Services interfaces, i.e. only the method name and type of parameters, which is too generic, as well as, limited to be adequate for a program to automatically invoke the target Web Service.
Unless the desired semantic definitions are clearly spec

Method used

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  • Method and apparatus of automatic method signature adaptation for dynamic web service invocation
  • Method and apparatus of automatic method signature adaptation for dynamic web service invocation
  • Method and apparatus of automatic method signature adaptation for dynamic web service invocation

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Embodiment Construction

[0055] First, several terms and mechanism are introduced. MetaData is used as a mechanism to communicate the semantic information of the Web Services to business applications so that the applications can invoke Web Services dynamically; MetaData is essential to solving the Web Services dynamic invocation problem in e-business integration. "Method signature adaptation" is the process of parsing the MetaData (or semantic definitions of the Web Services), automatically constructing the input parameters, as well as adapting the inputs and outputs to the proper format / units. Lastly, "MetaWSDL", a universal XML representation, is proposed in this invention to describe MetaData; it is complementary to the current WSDL and enriches the semantic definitions of Web Services.

[0056] Referring now to the drawings, and more particularly to FIGS. 1-3, there are shown exemplary embodiments of the method and structures according to the present invention.

[0057] FIG. 1 shows a schematic diagram of one...

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PUM

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Abstract

A method (and apparatus) for adapting an input parameter,for dynamically invoke the target Web services, and for adapting output results, the method including: receiving an invocation request including an input parameter in a first format; retrieving MetaWSDL (Meta Web Service Description Language), wherein said MetaWSDL includes a universal XML (eXtended Markup Language) representation which includes semantic information of a Web service method signature; invoking a MetaWSDL processor to adapt the input parameter to a second format using the retrieved MetaWSDL; dynamically invoking the target Web services using the adapted parameter in the second format; and adapting the output result in a first format to a second format using the MetaWSDL.

Description

[0001] 1. Field of the Invention[0002] The present invention generally relates to a dynamic e-business applications. More particularly, this invention relates to a method and apparatus of automatic method signature adaptation for dynamic Web service invocation.[0003] 2. Description of the Related Art[0004] Dynamic e-business is the dynamic adaptation of e-business processes and associated systems to support changing business strategies and tactics. It enables enterprise software to be modeled to fit the required business processes, rather than the other way around. When companies in an industry use the same enterprise software and adapt their business processes to fit it, they inevitably conduct their business in the same way as their competitors. Flexibility in infrastructure design allows new processes to be tried and deployed to develop a competitive advantage by doing it differently than the competition. Dynamic e-business offers the same flexibility in business partner integrat...

Claims

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Application Information

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IPC IPC(8): G06F9/46G06F17/30
CPCG06F9/546
Inventor ZHANG, LIANG-JIECHAO, TIAN-JYCHANG, HUNG-YANG
Owner IBM CORP
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