docs: public int read(User registrar) throws IdentityException, InvalidArgumentException {
          if (registrar == null) {
              throw new InvalidArgumentException("Registrar should be a valid member");
          }
  
          String readIdURL = "";
          try {
              readIdURL = HFCA_IDENTITY + "/" + enrollmentID;
              logger.debug(format("identity  url: %s, registrar: %s", readIdURL, registrar.getName()));
  
              JsonObject result = client.httpGet(readIdURL, registrar);
  
              statusCode = result.getInt("statusCode");
              if (statusCode < 400) {
                  type = result.getString("type");
                  maxEnrollments = result.getInt("max_enrollments");
                  affiliation = result.getString("affiliation");
  
                  JsonArray attributes = result.getJsonArray("attrs");
                  Collection<Attribute> attrs = new ArrayList<Attribute>();
                  if (attributes != null && !attributes.isEmpty()) {
                      for (int i = 0; i < attributes.size(); i++) {
                          JsonObject attribute = attributes.getJsonObject(i);
                          Attribute attr = new Attribute(attribute.getString("name"), attribute.getString("value"), attribute.getBoolean("ecert", false));
                          attrs.add(attr);
                      }
                  }
                  this.attrs = attrs;
  
                  logger.debug(format("identity  url: %s, registrar: %s done.", readIdURL, registrar));
              }
              this.deleted = false;
              return statusCode;
          } catch (HTTPException e) {
              String msg = format("[Code: %d] - Error while getting user '%s' from url '%s': %s", e.getStatusCode(), getEnrollmentId(), readIdURL, e.getMessage());
              IdentityException identityException = new IdentityException(msg, e);
              logger.error(msg);
              throw identityException;
          } catch (Exception e) {
              String msg = format("Error while getting user '%s' from url '%s': %s", enrollmentID, readIdURL, e.getMessage());
              IdentityException identityException = new IdentityException(msg, e);
              logger.error(msg);
              throw identityException;
          }
  
      }