[jira] [Commented] (NIFI-14363) Add a replaceByPattern expression language function

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-14363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17935271#comment-17935271 ] 

ASF subversion and git services commented on NIFI-14363:
--------------------------------------------------------

Commit d46ee938db2f10565d15b5fae933ef20311ae41f in nifi's branch refs/heads/main from Pierre Villard
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=d46ee938db ]

NIFI-14363 Added replaceByPattern Expression Language function (#9799)

Signed-off-by: David Handermann <ex...@apache.org>

> Add a replaceByPattern expression language function
> ---------------------------------------------------
>
>                 Key: NIFI-14363
>                 URL: https://issues.apache.org/jira/browse/NIFI-14363
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Core Framework
>            Reporter: Pierre Villard
>            Assignee: Pierre Villard
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> *replaceByPattern*
> {*}Description{*}:
> Returns a string based on the provided mapping rule in order to replace the subject to another string. If the subject is not covered by the mapping rule, then the subject is returned.
> {*}Subject Type{*}: String
> {*}Argument{*}:
>  - {_}mapping rule{_}: The mapping rule is a comma separated list of K:V where K may be a regular expression and V is the string to return in case K matches the subject. Examples: 'abc:xyz,foo:poo' and 'att[0-4]:low_range,att[5-9]:high_range,.*:other'
> {*}Return Type{*}: String
> {*}Examples{*}:
> If we have an attribute named "str" with the value "abc", then the following Expressions will result in the following values:
>  
> |Expression|Value|
> |`${str:replaceByPattern('abc:xyz,foo:poo')}`|`xyz`|
> |`${str:replaceByPattern('foo:poo')}`|`abc`|
> |`${str:replaceByPattern('a.c:xyz,.*:foo')}`|`xyz`|



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