URI toUri(final String... pathSegments) {
    return ServletUriComponentsBuilder.fromCurrentContextPath().path(getRestApiVersion())
        .pathSegment(pathSegments).build().toUri();
  }
AbstractBaseController class contains common functionalities required for other controllers.

@since GemFire 8.0
geode-web-api/src/main/java/org/apache/geode/rest/internal/web/controllers/AbstractBaseController.java