[jira] [Commented] (CAMEL-14631) Support custom type converters for Enums

["Steven Wyatt (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-14631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17540988#comment-17540988 ] 

Steven Wyatt commented on CAMEL-14631:
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This used to work all the way up to 2.19.5. We are trying to upgrade to 2.20.4 and our enum type converter is no longer called.

> Support custom type converters for Enums
> ----------------------------------------
>
>                 Key: CAMEL-14631
>                 URL: https://issues.apache.org/jira/browse/CAMEL-14631
>             Project: Camel
>          Issue Type: Improvement
>          Components: came-core
>            Reporter: Ralf Claussnitzer
>            Priority: Minor
>
> It should be possible to provide a custom TypeConverter for converting strings into an Enum instances.
> The conversion of `String` to `Enum` is hard coded to fail with an Exception if `EnumTypeConverter` cannot instantiate an `Enum` constant by name. However, Java allows to override the string representation for enums. Converting such strings back to enums is only possible through a special converting function.
> Currently `org.apache.camel.impl.converter.EnumTypeConverter` tries to find the Enum instance by name. If that fails it falls back  to calling the built-in valueOf(String) method which will end the program with a RuntimeException. The type conversion process stops there instead of further looking for custom type converters. The line with `return null;` in `EnumTypeConverter` is never reached. Would `EnumTypeConverter` indeed return null, the process would continue and a custom converter would finally be called.
>  * https://mail-archives.apache.org/mod_mbox/camel-dev/202002.mbox/%3Cc87cef78-9709-5b92-efee-9bf0e2c2370d%40slub-dresden.de%3E



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