code: @VisibleForTesting
      public FedoraResource getResourceFromPath(final String externalPath) {
          final Resource resource = translator().toDomain(externalPath);
          final FedoraResource fedoraResource = translator().convert(resource);
  
          if (fedoraResource instanceof Tombstone) {
              final String resourceURI = TRAILING_SLASH_REGEX.matcher(resource.getURI()).replaceAll("");
              throw new TombstoneException(fedoraResource, resourceURI + "/fcr:tombstone");
          }
  
          return fedoraResource;
      }
docs: Get the FedoraResource for the resource at the external path
  @param externalPath the external path
  @return the fedora resource at the external path