Providing clients with services that retrieve data from data...

Details Providing clients with services that retrieve data from data... Providing clients with services that retrieve data from data...

H - Electricity

04

L

H04L 29/06 (2006.01) G06F 17/30 (2006.01) H04L 12/28 (2006.01) H04L 12/56 (2006.01) H04L 12/66 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2368089

A method and system for allowing clients to retrieve data from data sources that do not necessarily support the same protocols and formats as the clients. The clients issue service requests. A pre-processor responds to the requests by generating XML-structured request objects with unresolved links to the data sources that have information required by the clients. An XML processor resolves the links by issuing requests through one or more gateways. The gateways convert the responses received from the data sources into XML, which the XML processor uses to create XML composite response documents. A post-processor filters the XML response documents, and applies XSL stylesheets to transform the XML composite response documents into client-specific responses that conform to the format required by the clients. The clients-specific responses are then sent to the clients.

L'invention concerne un procédé et un système permettant à des clients d'extraire des données de sources de données ne fonctionnant pas nécessairement sous les mêmes protocoles et formats que les clients. Les clients envoient une demande de services. Un préprocesseur répond aux demandes en créant des objets de demande dans une structure XML présentant des liens non résolus avec les sources de données contenant les informations demandées par les clients. Un processeur XML résout les liens en envoyant des demandes par une ou plusieurs passerelles. Les passerelles convertissent les réponses provenant des sources de données en XML, que le processeur XML utilise pour créer des documents de réponse composites XML. Un postprocesseur filtre les documents de réponse XML et applique des feuilles de style XSL pour transformer les documents de réponse composites XML en réponses spécifiques aux clients conformes au format demandé par les clients. Les réponses spécifiques aux clients sont ensuite envoyées aux clients.

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