code: @Override
      protected String doForward(final String inputId) {
          LOGGER.trace("Converting identifier {} from internal to external...", inputId);
          String result = inputId;
          for (final String jcrNamespace : jcrNamespacesToRDFNamespaces.keySet()) {
              LOGGER.trace("Replacing namespace: {} with: {}", jcrNamespace, jcrNamespacesToRDFNamespaces
                      .get(jcrNamespace));
              result = result.replace(jcrNamespace, jcrNamespacesToRDFNamespaces.get(jcrNamespace));
          }
          LOGGER.trace("Converted identifier {} from internal to external {}...", inputId, result);
          return result;
      }
docs: /*
  (non-Javadoc)
  @see
  org.fcrepo.kernel.api.identifiers.InternalIdentifierConverter#doForward(
  java.lang.String)