.. _regexrouter:

===========
RegexRouter
===========

Description
-----------
Update the record's topic using the configured regular expression and replacement string.

Under the hood, the regex is compiled to a ``java.util.regex.Pattern``. If the pattern matches the input topic, ``java.util.regex.Matcher#replaceFirst()`` is used with the replacement string to obtain the new topic.


Properties
----------

.. list-table::
   :header-rows: 1
   :widths: 15 30 10 10 10 10

   *  - Name
      - Description
      - Type
      - Default
      - Valid Values
      - Importance
   *  - ``regex``
      - Regular expression to use for matching.
      - string
      -
      - valid regex
      - high
   *  - ``replacement``
      - Replacement string.
      - string
      -
      -
      - high