public Optional<String> getRegexResolvedStreams(String rewriterName) {
    return Optional.ofNullable(get(String.format(REGEX_RESOLVED_STREAMS, rewriterName)));
  }
Compile a map of each input-system to its corresponding input-monitor-regex patterns.
samza-core/src/main/java/org/apache/samza/config/JobConfig.java