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https://issues.apache.org/jira/browse/CAMEL-23763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen reassigned CAMEL-23763:
-----------------------------------
Assignee: Claus Ibsen
> camel-xml-io ModelWriter writes kamelet child element as route attribute
> breaking XML round-trip
> ------------------------------------------------------------------------------------------------
>
> Key: CAMEL-23763
> URL: https://issues.apache.org/jira/browse/CAMEL-23763
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Reporter: Claus Ibsen
> Assignee: Claus Ibsen
> Priority: Minor
> Labels: eip
>
> When a route contains a {{<kamelet name="my-processor"/>}} child element, the
> XML ModelWriter in camel-xml-io writes it back as a {{kamelet="false"}}
> attribute on the {{<route>}} element instead of preserving the {{<kamelet>}}
> child element. This breaks XML round-trip (parse, write, re-parse).
> *Input XML:*
> {code:xml}
> <routes xmlns="http://camel.apache.org/schema/xml-io";>
> <route>
> <from uri="direct:start"/>
> <kamelet name="my-processor"/>
> <to uri="mock:result"/>
> </route>
> </routes>
> {code}
> *Written XML (incorrect):*
> {code:xml}
> <route kamelet="false" xmlns="http://camel.apache.org/schema/xml-io";>
> <from uri="direct:start"/>
> <to uri="mock:result"/>
> </route>
> {code}
> The {{<kamelet>}} child element is lost entirely, and a spurious
> {{kamelet="false"}} attribute appears on the {{<route>}} element. Re-parsing
> the written XML then fails with: {{Unexpected attribute 'kamelet'}}.
> *Root cause:* {{RouteDefinition}} has a boolean {{kamelet}} field that is a
> runtime transient (used internally to mark whether a route originates from a
> kamelet). The XML ModelWriter picks up this boolean field and writes it as an
> XML attribute, while the actual {{KameletDefinition}} child element (the
> Kamelet EIP) is not written. The writer should never serialize the transient
> boolean and should always write the {{KameletDefinition}} child element.
> *Discovered while:* adding compile-validation tests for the new Java DSL
> model writer (CAMEL-23757). The kamelet XML test file had to be placed in
> camel-java-io test resources instead of camel-xml-io to avoid breaking the
> ModelWriterTest round-trip tests.
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