How to use

getNNServiceAddress

method

in

org.apache.hadoop.hdfs.server.common.JspHelper

private static UserGroupInformation getTokenUGI(ServletContext context,
                        HttpServletRequest request,
                        String tokenString,
                        Configuration conf)
                          throws IOException {
 final Token<DelegationTokenIdentifier> token =
   new Token<DelegationTokenIdentifier>();
 token.decodeFromUrlString(tokenString);
 InetSocketAddress serviceAddress = getNNServiceAddress(context, request);
 if (serviceAddress != null) {
  SecurityUtil.setTokenService(token, serviceAddress);
  token.setKind(DelegationTokenIdentifier.HDFS_DELEGATION_KIND);
 }
 ByteArrayInputStream buf =
   new ByteArrayInputStream(token.getIdentifier());
 DataInputStream in = new DataInputStream(buf);
 DelegationTokenIdentifier id = new DelegationTokenIdentifier();
 id.readFields(in);
 if (context != null) {
  final NameNode nn = NameNodeHttpServer.getNameNodeFromContext(context);
  if (nn != null) {
   // Verify the token.
   nn.getNamesystem().verifyToken(id, token.getPassword());
  }
 }
 UserGroupInformation ugi = id.getUser();
 ugi.addToken(token);
 return ugi;
}

private static UserGroupInformation getTokenUGI(ServletContext context,
                        HttpServletRequest request,
                        String tokenString,
                        Configuration conf)
                          throws IOException {
 final Token<DelegationTokenIdentifier> token =
   new Token<DelegationTokenIdentifier>();
 token.decodeFromUrlString(tokenString);
 InetSocketAddress serviceAddress = getNNServiceAddress(context, request);
 if (serviceAddress != null) {
  SecurityUtil.setTokenService(token, serviceAddress);
  token.setKind(DelegationTokenIdentifier.HDFS_DELEGATION_KIND);
 }
 ByteArrayInputStream buf =
   new ByteArrayInputStream(token.getIdentifier());
 DataInputStream in = new DataInputStream(buf);
 DelegationTokenIdentifier id = new DelegationTokenIdentifier();
 id.readFields(in);
 if (context != null) {
  final NameNode nn = NameNodeHttpServer.getNameNodeFromContext(context);
  if (nn != null) {
   // Verify the token.
   nn.getNamesystem().verifyToken(id, token.getPassword());
  }
 }
 UserGroupInformation ugi = id.getUser();
 ugi.addToken(token);
 return ugi;
}

private static UserGroupInformation getTokenUGI(ServletContext context,
                        HttpServletRequest request,
                        String tokenString,
                        Configuration conf)
                          throws IOException {
 final Token<DelegationTokenIdentifier> token =
   new Token<DelegationTokenIdentifier>();
 token.decodeFromUrlString(tokenString);
 InetSocketAddress serviceAddress = getNNServiceAddress(context, request);
 if (serviceAddress != null) {
  SecurityUtil.setTokenService(token, serviceAddress);
  token.setKind(DelegationTokenIdentifier.HDFS_DELEGATION_KIND);
 }
 ByteArrayInputStream buf =
   new ByteArrayInputStream(token.getIdentifier());
 DataInputStream in = new DataInputStream(buf);
 DelegationTokenIdentifier id = new DelegationTokenIdentifier();
 id.readFields(in);
 if (context != null) {
  final NameNode nn = NameNodeHttpServer.getNameNodeFromContext(context);
  if (nn != null) {
   // Verify the token.
   nn.getNamesystem().verifyToken(id, token.getPassword());
  }
 }
 UserGroupInformation ugi = id.getUser();
 ugi.addToken(token);
 return ugi;
}