Interface IErrorMessageFormatter
- All Known Implementing Classes:
DataSonnetErrorMessageFormatter
,ErrorMessageFormatter
,FixedErrorMessageFormatter
,SoapErrorMessageFormatter
,XslErrorMessageFormatter
,Y01ErrorMessageFormatter
errorMessageFormatter
is responsible for returning a message
describing the error at hand in a format that the receiver expects.
ErrorMessageFormatters are configured on Adapter
s or Configuration
s to format
exception messages when an exception is thrown during the PipeLine
execution process.
The ErrorMessageFormatter is called when a IPipe
throws an exception, and has an exceptionForward
. The
target of the exceptionForward
will receive the message produced by the ErrorMessageFormatter.
The ErrorMessageFormatter is also called when any exception occurs during pipeline execution that is not caught or handled
by an exceptionForward
. Request-Reply receivers configured with FORMAT_AND_RETURN
will then return the formatted error message as the pipeline result.
If you want to return a specific error message from a pipeline to signal a (functional) error condition that did not result from
an exception, use an ExceptionPipe
to trigger an exception. This exception will then result in the
ErrorMessageFormatter being called.
You can use IParameter
s on the ExceptionPipe
to pass specific
information to the ErrorMessageFormatter such as error codes, error messages, etc. See the example message layouts in
ErrorMessageFormatter
to see how parameters are available in the XML or JSON error message.
Parameters from the ExceptionPipe
are also copied into the PipeLineSession
.
When no specific ErrorMessageFormatter is configured on the Adapter or its Configuration, the default implementation
ErrorMessageFormatter
is used with a default XML format. For more control
over the layout of the message, configure a XslErrorMessageFormatter
or
DataSonnetErrorMessageFormatter
.
If these do not provide enough control over the error message format for your adapter, you can provide a custom implementation of this interface as custom code in your configuration.
- Author:
- Johan Verrips
-
Method Summary
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Method Details
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format
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