Implement a CDI File BuildAdapter

[rsoika]

The File Adapter should support Regex to scan for different file patterns

....
  String _FilenamePattern = parseMLFilePatternByBPMN(mlConfig);
            if (_FilenamePattern != null && !_FilenamePattern.isEmpty()) {
                mlFilenamePattern = Pattern.compile(_FilenamePattern);
            }

For example add pdf file content only:

<filecontent name="filepattern">^.+\.([pP][dD][fF])$</filecontent>