@GET @ApiIgnore // until documented
  @Path("{kerberosIdentityID}")
  @Produces("text/plain")
  public Response getKerberosIdentity(String body, @Context HttpHeaders headers, @Context UriInfo ui,
                                      @PathParam("kerberosIdentityID") String identityID,
                                      @QueryParam("format") String format) {

    MediaType mediaType;
    if ("csv".equalsIgnoreCase(format)) {
      mediaType = MEDIA_TYPE_TEXT_CSV_TYPE;
    } else {
      mediaType = null;
    }

    return handleRequest(headers, body, ui, Request.Type.GET, mediaType, createResource(clusterName, hostName, identityID));
  }
Handles GET: /clusters/{clusterID}/services/{serviceID}/components/{componentID}/kerberos_identities/{identityId}
Get a specific Kerberos identity.

@param headers    http headers
@param ui         uri info
@param identityID Kerberos identity id
@param format     output format
@return a component resource representation
ambari-server/src/main/java/org/apache/ambari/server/api/services/HostKerberosIdentityService.java