[ https://issues.apache.org/activemq/browse/SM-525?page=all ]
Guillaume Nodet resolved SM-525.
--------------------------------
Fix Version/s: 3.0-M3
Resolution: Fixed
Assignee: Grant McDonald
Author: gnodet
Date: Wed Aug 9 17:20:48 2006
New Revision: 430194
URL: http://svn.apache.org/viewvc?rev=430194&view=rev
Log:
SM-525: Enhancement to ValidateComponent to implement a complete and flexible
error handling scheme for schema validation
Patch provided by Grant McDonald
Added:
incubator/servicemix/trunk/servicemix-components/src/main/java/org/apache/servicemix/components/validation/MessageAggregatingErrorHandler.java
incubator/servicemix/trunk/servicemix-components/src/main/java/org/apache/servicemix/components/validation/MessageAwareErrorHandler.java
Modified:
incubator/servicemix/trunk/servicemix-components/src/main/java/org/apache/servicemix/components/validation/CountingErrorHandler.java
incubator/servicemix/trunk/servicemix-components/src/main/java/org/apache/servicemix/components/validation/ValidateComponent.java
incubator/servicemix/trunk/servicemix-components/src/test/java/org/apache/servicemix/components/validation/ValidationTest.java
incubator/servicemix/trunk/servicemix-components/src/test/resources/org/apache/servicemix/components/validation/example.xml
> Enhancement to ValidateComponent to implement a complete and flexible error
> handling scheme for schema validation
> -----------------------------------------------------------------------------------------------------------------
>
> Key: SM-525
> URL: https://issues.apache.org/activemq/browse/SM-525
> Project: ServiceMix
> Issue Type: Improvement
> Components: servicemix-components
> Environment: Ubuntu Linux 5.10, Windows XP SP2, ServiceMix HEAD
> Reporter: Grant McDonald
> Assigned To: Grant McDonald
> Fix For: 3.0-M3
>
> Attachments: servicemix-components.zip
>
> Original Estimate: 30 minutes
> Remaining Estimate: 30 minutes
>
> The purpose of this enchancement was to provide the following:
> 1) Allow error messages to be captured by the ValidateComponent and sent back
> as the content of a fault message;
> 2) Preserve existing functionality; and
> 3) Provide a framework for extending the functionality
> It was noted that the existing functionality only dealt with simple case
> valid or not valid schemas. It was decided to make the standard component
> more extensible and functional and as such this code is being contributed
> back to the ServiceMix project. To this end the following changes have been
> made and are available in the attached zip file:
> 1) Added MessageAwareErrorHandler interface - this interface extends the
> org.xml.sax.ErrorHandler interface and adds contracts for determining if the
> error handler has errors, whether it captures messages from the validator,
> and what message formats it supports.
> 2) Refactored CountingErrorHandler to extend from MessageAwareErrorHandler
> and implement the above mentioned methods
> 3) Created MessageAggregatingErrorHandler - this class aggregates all
> warning, error and fatal error messages into an XML format (via CDATA). It
> provides the ability to set the root document path and namespace via
> configuration and supports DOMSource, StringSource and String formats for the
> encapsulated data.
> 4) modified ValidateComponent - added errorHandler property to facilitate
> dependency injection, with a default value of CountingErrorHandler to
> preserve existing functionality. Refactored the handling of validation
> errors to use the new interfaces. errorHandlers which do not support the
> capturing of messages will use the previous method of sending the DOMResult
> back as the fault message content. errorHandlers which do support the
> capture of messages will send the error message xml back as the fault message
> content. The src document is now set as a property on the fault message.
> Additionally, a null pointer check was added to the init on the
> schemaResource.getURL() method call.
> A testcase has been added to ValidationTest and the example.xml in the
> validation test/resources package demonstrates the configuration of this
> functionality.
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