Multi-pass validation of extensible markup language (XML) documents

• US 8,875,013 B2
• Filed: 03/25/2008
• Issued: 10/28/2014
• Est. Priority Date: 03/25/2008
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Fetzer, Stephanie A.
• Primary Examiner(s): Hong, Stephen
• Assistant Examiner(s): ROBINSON, MARSHON L
• Application Number:
  US12/054,692
• Publication Number:
  US 20090249186A1
• Time in Patent Office: 2,408 Days
• Field of Search: 715/237, 715/234
• US Class Current: 715/237
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/226 Validation

Abstract

A validation sequence for an XML document can be identified. The validation sequence can include a set of validation elements. At least one validation pass can be performed for the XML document. Each validation pass can correspond to one of the validation elements. Each validation pass can be configured to validate the XML document for at least one condition defined by the validation element. A validation element result can be produced for each performed validation pass. A validation element result that indicates the XML document is invalid can cause an immediate ending of activities related to the validation sequence, which determines the XML document in general to be invalid. A validation element result that indicates the XML document is valid causes a validation pass to be performed for another one of the validation elements unless each validation element in the validation sequence has been processed. A successful validation of the XML document requires a performance of a successful execution pass for each of the plurality the validation elements.

Claims

1. A method for validating XML documents comprising:

determining a set of preprocessing parameters from an XML document, wherein responsive to any missing preprocessing parameter in the set of preprocessing parameters, determining the XML document to be invalid, wherein a result of determining that the XML document is invalid causes a ceasing of activities related to validation, wherein the preprocessing parameters represent at least one of data tags and values within the XML document, and wherein the preprocessing parameters represent at least one of data tags and values within the XML document;

upon determining the set of preprocessing parameters, identifying a validation sequence from a plurality of validation sequences for the XML document based on the set of preprocessing parameters, wherein each of the validation sequence comprises a unique order of execution for series of validation passes to validate the XML document, wherein said validation sequence comprises a plurality of validation elements, wherein each validation pass corresponds to one of the validation elements, wherein each of the validation element represents a type of governance for validating the XML document, wherein each validation pass is configured to validate the XML document for at least one condition defined by the validation element; and

perform a multi-pass validation associated with the validation sequence on the XML document; and

producing a validation element result for each performed validation pass.

2. The method of claim 1, further comprising:

reporting a validation status of the XML document over a network to an originator of the XML document from a remotely located network node based upon results of the validation sequence.

3. The method of claim 1, wherein said at least one validation pass comprises a plurality of validation passes, and wherein at least two different computer processing units perform different ones of the validation passes of the plurality of validation passes.

4. The method of claim 1, wherein the validation elements are ordered elements, and wherein the validation passes are performed in an order of the validation elements.

5. The method of claim 1, wherein each of said validation elements define validation conditions unique to that validation element, wherein the defined validation conditions are non-redundant with any other validation condition of the validation sequence, wherein a validation element result that indicates the XML document is invalid causes a ceasing of activities related to unprocessed ones of the validation elements in the validation sequence, wherein a validation element result that indicates the XML document is valid causes a validation pass to be performed for another one of the validation elements unless each validation element in the validation sequence has been processed, wherein a successful validation of the XML document requires a performance of a successful execution pass for each of the plurality the validation elements.

6. The method of claim 1, wherein at least one of the validation elements are user configurable, and wherein each of the validation elements are separately configurable from other ones of the validation elements.

7. The method of claim 1, further comprising:

analyzing the XML document using a text parser; and

determining said validation sequence from a plurality of previously defined validation sequences based upon results of analyzing the XML document using the text parser.

8. The method of claim 1, further comprising:

determining said validation sequence based upon a relationship between a sender of the XML document and a recipient of the XML document.

9. The method of claim 1, said performing further comprising:

analyzing the XML document using an XML parser, wherein the conditions defined by the validation element are structural XML conditions defined within an XML schema.

10. A computer program product for validating XML documents, the computer program product comprising:

a non-transitory computer usable storage medium having computer usable program code embodied therewith, the computer usable program code comprising;

computer usable program code configured to determine a set of preprocessing parameters from an XML document, wherein responsive to any missing preprocessing parameter in the set of preprocessing parameters, identifying the XML document to be invalid, wherein a result of identifying that the XML document is invalid causes ceasing of activities related to validation, wherein the preprocessing parameters represent at least one of data tags and values within the XML document;

computer usable program code configured to, upon determining, identify a validation sequence for an XML document based on the set of preprocessing parameters, wherein the validation sequence comprises an order of execution for series of validation passes to validate the XML document, wherein said validation sequence comprises a plurality of validation elements, wherein each validation pass corresponds to one of the validation elements, wherein each of the validation element represents a type of governance for validating the XML document, wherein each validation pass is configured to validate the XML document for at least one condition defined by the validation element;

computer usable program code configured to perform the validation sequence, comprising the series of validation passes, on the XML document; and

computer usable program code configured to produce a validation element result for each performed validation pass, wherein a validation element result that indicates the XML document is invalid causes a ceasing of activities related to unprocessed ones of the validation elements in the validation sequence, wherein a validation element result that indicates the XML document is valid causes a validation pass to be performed for another one of the validation elements unless each validation element in the validation sequence has been processed, wherein a successful validation of the XML document requires a performance of a successful execution pass for each of the plurality the validation elements.

11. A method that utilizes a multi-pass technique to validate extensible markup language (XML) documents comprising:

receiving an XML document containing a plurality of data items, wherein the plurality of data items are arranged in a predetermined format for an exchange of data;

ascertaining a set of processing parameter from the XML document, wherein responsive to any missing preprocessing parameter in the set of preprocessing parameters, determining that the XML document to be invalid, wherein a result of determining that the XML document is invalid causes a ceasing of activities related to validation, and wherein the preprocessing parameters represent at least one of data tags and values within the XML document;

upon determining the set of preprocessing parameters, determining a validation sequence for the XML document from a plurality of different validation sequences, wherein the validation sequence is determined based at least in part upon the set of processing parameters, wherein each of the validation sequence comprises a unique order of execution for a series of validation passes, wherein the validation sequence comprises a plurality of validation elements that each defines acceptable data items for at least one of the predetermined format and for the exchange of data, wherein each validation pass is configured to validate the XML document for a condition defined by the validation element; and

executing the series of validation passes associated with the validation sequence upon the XML document, wherein during the execution, a validation pass for each validation element is executed in order.

12. The method of claim 11, further comprising:

when a failure of a specific validation element occurs during an execution of the validation sequence, immediately terminating the execution of the validation sequence and determining the XML document to be invalid;

when each validation element has been processed and determined to be valid, determining the XML document to be valid; and

conveying message detailing validation results for the XML document to an originating party of the XML document.

13. The method of claim 12, wherein the examining step is performed by a document preprocessing component, wherein the document preprocessing component utilizes a text parser to determine the at least one processing parameter.

14. The method of claim 12, wherein the at least one processing parameter comprises a document data type, the originating party of the XML document, and an XML version identifier.

15. The method of claim 11, wherein the plurality of validation elements comprises at least one of an XML document schema, a document type definition, a validation rule for a commercially-available validation tool, and an XML processing parameter.

19. The system of claim 15, wherein the at least one document evaluator comprises an XML parser, a text parser, and a commercially-available validation tool.

20. The system of claim 15, wherein the at least one validation element comprises at least one of an XML document schema, a document type definition, a validation rule for a commercially-available validation tool, and an XML processing parameter.

16. A system utilizing a multi-pass technique to optimize the validation of extensible markup language (XML) documents comprising:

an XML document containing a plurality of data items, wherein the plurality of data items are arranged in a predetermined format for an exchange of data;

a document preprocessor configured to analyze the XML document for a set of preprocessing parameters;

a validation coordinator configured to identify the XML document as an invalid document in response to determining that one or more preprocessing parameters of the set of preprocessing parameters are missing;

upon determining the set of preprocessing parameters, identifying determine the validation sequence for the XML document based upon the at least one preprocessing parameter determined by the document preprocessor and monitor an execution of said validation sequence; and

a multi-pass XML validator configured to validate the XML document utilizing a multi-pass validation associated with a validation sequence, wherein the validation sequence contains an order of execution for a series of validation passes, wherein the validation sequence comprises a plurality of validation elements that each defines acceptable data items for at least one of the predetermined format and for the exchange of data, wherein each validation pass corresponds to one of the validation elements, wherein each validation pass is configured to validate the XML document for a condition defined by the validation element; and

at least one document evaluator configured to execute the validation sequence upon the XML document as directed by the multi-pass XML validator.

17. The system of claim 16, wherein the multi-pass XML validator further comprises:

a message generator configured to create a rejection message upon a failure of a validation element within the validation sequence, wherein the rejection message is conveyed to an originating party of the XML document.

18. The system of claim 17, wherein the at least one preprocessing parameter determined by the document preprocessor comprises at least one of a document data type, an originating party of the XML document, and an XML version identifier.