[jira] [Assigned] (BROOKLYN-433) YAML-based config constraint to support regex

["Aled Sage (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BROOKLYN-433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aled Sage reassigned BROOKLYN-433:
----------------------------------

    Assignee: Aled Sage

> YAML-based config constraint to support regex
> ---------------------------------------------
>
>                 Key: BROOKLYN-433
>                 URL: https://issues.apache.org/jira/browse/BROOKLYN-433
>             Project: Brooklyn
>          Issue Type: Improvement
>    Affects Versions: 0.10.0
>            Reporter: Aled Sage
>            Assignee: Aled Sage
>            Priority: Minor
>
> One can specify constraints on a config key's value, to give a validation error if an invalid value is supplied.
> In the Java code, this can be any predicate.
> However, in YAML we don't support many options. It would be good to support a regex constraint. For example:
> {noformat}
> brooklyn.parameters:
> - name: address
>   type: string
>   constraints:
>   - required
>   - regex: ^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$
> {noformat}
> See docs at https://raw.githubusercontent.com/apache/brooklyn-docs/master/guide/yaml/yaml-reference.md, and code at https://github.com/apache/brooklyn-server/blob/master/core/src/main/java/org/apache/brooklyn/core/objs/BasicSpecParameter.java#L204-L205



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