SecurityUtil { public static String buildDTServiceName(URI uri, int defPort) { String authority = uri.getAuthority(); if (authority == null) { return null; } InetSocketAddress addr = NetUtils.createSocketAddr(authority, defPort); return buildTokenService(addr).toString(); } protected  SecurityUtil(); @InterfaceAudience.Public @InterfaceStability.Evolving static void setConfiguration(Configuration conf); @InterfaceAudience.Private @VisibleForTesting static void setTokenServiceUseIp(boolean flag); @InterfaceAudience.Public @InterfaceStability.Evolving static String getServerPrincipal(String principalConfig,
      String hostname); @InterfaceAudience.Public @InterfaceStability.Evolving static String getServerPrincipal(String principalConfig,
      InetAddress addr); @InterfaceAudience.Public @InterfaceStability.Evolving static void login(final Configuration conf,
      final String keytabFileKey, final String userNameKey); @InterfaceAudience.Public @InterfaceStability.Evolving static void login(final Configuration conf,
      final String keytabFileKey, final String userNameKey, String hostname); static String buildDTServiceName(URI uri, int defPort); static String getHostFromPrincipal(String principalName); @InterfaceAudience.Private static void setSecurityInfoProviders(SecurityInfo... providers); static KerberosInfo getKerberosInfo(Class<?> protocol, Configuration conf); static TokenInfo getTokenInfo(Class<?> protocol, Configuration conf); static InetSocketAddress getTokenServiceAddr(Token<?> token); static void setTokenService(Token<?> token, InetSocketAddress addr); static Text buildTokenService(InetSocketAddress addr); static Text buildTokenService(URI uri); static T doAsLoginUserOrFatal(PrivilegedAction<T> action); static T doAsLoginUser(PrivilegedExceptionAction<T> action); static T doAsCurrentUser(PrivilegedExceptionAction<T> action); @InterfaceAudience.Private static InetAddress getByName(String hostname); static AuthenticationMethod getAuthenticationMethod(Configuration conf); static void setAuthenticationMethod(
      AuthenticationMethod authenticationMethod, Configuration conf); static boolean isPrivilegedPort(final int port); static List<ZKUtil.ZKAuthInfo> getZKAuthInfos(Configuration conf,
      String configKey); static final Logger LOG; static final String HOSTNAME_PATTERN; static final String FAILED_TO_GET_UGI_MSG_HEADER; }
@Test public void testBuildDTServiceName() { Configuration conf = new Configuration(false); conf.setBoolean( CommonConfigurationKeys.HADOOP_SECURITY_TOKEN_SERVICE_USE_IP, true); SecurityUtil.setConfiguration(conf); assertEquals("127.0.0.1:123", SecurityUtil.buildDTServiceName(URI.create("test: ); assertEquals("127.0.0.1:123", SecurityUtil.buildDTServiceName(URI.create("test: ); assertEquals("127.0.0.1:123", SecurityUtil.buildDTServiceName(URI.create("test: ); assertEquals("127.0.0.1:123", SecurityUtil.buildDTServiceName(URI.create("test: ); }