Tomohisa Igarashi created CAMEL-11132:
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Summary: Provide type metadata for each Components/DataFormats
Key: CAMEL-11132
URL: https://issues.apache.org/jira/browse/CAMEL-11132
Project: Camel
Issue Type: Improvement
Components: camel-core
Reporter: Tomohisa Igarashi
Assignee: Tomohisa Igarashi
Fix For: 2.20.0
CAMEL-10447 has introduced InputType/OutputType declaration and declarative
Transformer/Validator based on those types declared on a route.
Next step is to provide type metadata for each Components/DataFormats:
* Let components/DataFormats provide metadata about what data types are
supported so that app developer can see
* Narrow down the possible data types (i.e. exclude unsupported types) and
transformers when writing a route in IDE, allow IDE to show those candidates as
a hint so that app developer can choose from
* Provide such facility from camel side so that the maven plugin and/or IDE can
leverage it
Annotation would be an option, but it only provides static types. For example
xslt component only consumes/produces XML so "XML" could be provided via
annotation. But dozer component consumes/produces arbitrary data formats and
the actual type to be used is determined via configuration, so it cannot be
provided via annotation. It would need a common way to calculate possible input
types and output types on a component/endpoint and dataformat from its
configuration.
Sometimes even body of the input message would affect the possible output
types. To visualize this we'll need some kind of simulation with a test message.
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