@Override
 public void read(org.apache.thrift.protocol.TProtocol prot, Credentials struct)
     throws org.apache.thrift.TException {
   TTupleProtocol iprot = (TTupleProtocol) prot;
   struct.username = iprot.readString();
   struct.setUsernameIsSet(true);
   struct.password = iprot.readString();
   struct.setPasswordIsSet(true);
 }
    public void read(org.apache.thrift.protocol.TProtocol iprot, Credentials struct)
        throws org.apache.thrift.TException {
      org.apache.thrift.protocol.TField schemeField;
      iprot.readStructBegin();
      while (true) {
        schemeField = iprot.readFieldBegin();
        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) {
          break;
        }
        switch (schemeField.id) {
          case 1: // USERNAME
            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
              struct.username = iprot.readString();
              struct.setUsernameIsSet(true);
            } else {
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          case 2: // PASSWORD
            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
              struct.password = iprot.readString();
              struct.setPasswordIsSet(true);
            } else {
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
            }
            break;
          default:
            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
        }
        iprot.readFieldEnd();
      }
      iprot.readStructEnd();

      // check for required fields of primitive type, which can't be checked in the validate method
      struct.validate();
    }