usermanagementhelper.java

来自「Oracle的J2EE Sample」· Java 代码 · 共 1,235 行 · 第 1/4 页

  public String changePreferenceInfo(HttpServletRequest req)
      throws UserManagementEventException {

    // Get the Symbol for which Preferences Need to be changed
    String symbol = req.getParameter("SYMBOL").toUpperCase();

    // Get the Account Number
    Integer accountNo  =
      (Integer) req.getSession().getAttribute("LOGIN.RESPONSE");

    String  retMessage = "NOSUCCESS";

    // Check Whether the Preference corresponding to given Symbol
    // need not be deleted
    if (req.getParameter("DELFLAG").equals("NO")) {

      // Initialize a new PreferencesInfo Value Object
      PreferencesInfo pInfo = new PreferencesInfo(symbol,
                                                  req.getParameter("PREFTYPE"));

      try {
        // Using UserManagementSessionFacadeBean, change PreferencesInfo
        retMessage = rmr.changePreferencesInfo(accountNo, pInfo);
      } catch (RemoteException re) {    // Trap Remote Errors
        throw new UserManagementEventException(
          "Remote Exception while changing preferences info : "
          + re.toString());
      }
    } else {
      // If this preference need to be deleted
      if (req.getParameter("DELFLAG").equals("YES")) {
        try {
          // Using UserManagementSessionFacadeBean,
          // delete Preferences corresponding to this symbol
          retMessage = rmr.deletePreference(accountNo, symbol);

        } catch (RemoteException re) {  // Trap Remote Errors
          throw new UserManagementEventException(
            "Remote Exception while deleting preferences : " + re.toString());
        }
      }
    }

    // Populate Preferences Again so that the recent changes
    // becomes visible immediately
    HashMap hm = populatePreferences(req);

    req.getSession().setAttribute("PREFS.RESPONSE", hm);

    if (retMessage.equals("SUCCESS")) {
      return retMessage;
    } else {
      throw new UserManagementEventException(
        "Exception while changing preferences info : " + retMessage);
    }
  }

  /**
   * Method to add a new Alert Setting for a user account.
   *
   * @param req Servlet Request Object
   * @return Status of the operation
   * @exception UserManagementEventException Exception raised when
   *            Adding a new Alert using Session Facade Bean
   * @exception ApplicationError Raised when Symbol is invalid or
   *            preference for the symbol already exists.
   * @since   1.0
   */

  public String addAlert(HttpServletRequest req)
      throws ApplicationError, UserManagementEventException {

    // Get the Account Number
    Integer accountNo =
      (Integer) req.getSession().getAttribute("LOGIN.RESPONSE");

    String  symbol   = req.getParameter("SYMBOL").toUpperCase();
    Integer minLimit = new Integer(req.getParameter("MINLIMIT"));
    Integer maxLimit = new Integer(req.getParameter("MAXLIMIT"));

    if (symbol == null)
      throw new ApplicationError("Symbol Can not be null");

    // Initialize a new AlertInfo Value Object
    AlertsInfo alertInfo  = new AlertsInfo(symbol,minLimit,maxLimit);
    String     retMessage = "NOSUCCESS";

    try {

      // Using the UserManagementSessionFacadeBean,
      // add alert to the existing alerts
      retMessage = rmr.addAlert(accountNo, alertInfo);

    } catch (RemoteException re) {  // Trap Remote Errors
      throw new UserManagementEventException(
        "Remote Exception while adding alerts : " + re.toString());
    }

    // Populate Alerts so that the recently added alert gets added to this list
    HashMap hm = populateAlerts(req);

    req.getSession().setAttribute("ALERTS.RESPONSE", hm);

    if (retMessage.equals("SUCCESS")) {
      return retMessage;
    } else {
      if (retMessage.indexOf("Improper")!= -1) {
        throw new ApplicationError("You supplied invalid symbol value. Please provide valid Symbol.");
      } else {
        throw new ApplicationError("Alert for given symbol already exists. Instead update the alert setting.");
      }
    }
  }

  /**
   * Method to add a new Preference Setting for a user account.
   *
   * @param req Servlet Request Object
   * @return Status of the operation
   * @exception UserManagementEventException Exception raised when
   *            Adding a Preference using Session Facade Bean
   * @exception ApplicationError Raised when Symbol is invalid or
   *            preference for the symbol already exists.
   * @since   1.0
   */

  public String addPreference(HttpServletRequest req)
      throws ApplicationError, UserManagementEventException {

    // Get the Accout Number
    Integer accountNo =
      (Integer) req.getSession().getAttribute("LOGIN.RESPONSE");

    String symbol = req.getParameter("SYMBOL").toUpperCase();
    String prefType = req.getParameter("PREFTYPE");

    if (symbol == null)
      throw new ApplicationError("Symbol Can not be null");

    // Initialize a new PreferencesInfo Value Object for adding it to the
    // existing list of Preferences.
    PreferencesInfo preferencesInfo = new PreferencesInfo(symbol,prefType);
    String          retMessage      = "NOSUCCESS";

    try {

      // Add the Preference
      retMessage = rmr.addPreferences(accountNo, preferencesInfo);

    } catch (RemoteException re) {  // Trap Remote Errors
      throw new UserManagementEventException(
        "Remote Exception while adding preferences : " + re.toString());
    }
    // Populate the preferences so that recent addition of
    // preference is visible immediately
    HashMap hm = populatePreferences(req);

    req.getSession().setAttribute("PREFS.RESPONSE", hm);

    if (retMessage.equals("SUCCESS")) {
      return retMessage;
    } else {
      if (retMessage.indexOf("Improper")!= -1) {
        throw new ApplicationError("You supplied invalid symbol value. Please provide valid Symbol.");
      } else {
        throw new ApplicationError("Preference for given symbol already exists. Instead update the preference setting.");
      }
    }
  }

  /**
   * Method to Sign Up a new User to this FBS. This method creates a new user
   * account and passes the AccountNumber back to the calling method.
   *
   * @param req  Servlet Request Object
   *             Using this object, we can get all the User Information entered
   *             by the user in the SignUp form.
   * @return account Number of created account.
   * @exception UserManagementEventException Exception raised when
   *            Creating a New Account using Session Facade Bean
   * @since   1.0
   */
  public Integer signUp(HttpServletRequest req)
      throws UserManagementEventException {

    Integer accountNo = new Integer(0);

    // Initialize Contact Info Value Object
    ContactInfo contactInfo = new ContactInfo(req.getParameter("FIRSTNAME"),
                                              req.getParameter("LASTNAME"),
                                              req.getParameter("ORGANIZATION"),
                                              req.getParameter("ADDRESS"),
                                              req.getParameter("CITY"),
                                              req.getParameter("STATE"),
                                              req.getParameter("COUNTRY"),
                                              req.getParameter("PHONE"),
                                              req.getParameter("EMAIL"),
                                              req.getParameter("MOBILEEMAIL"));

    Integer linesPerPage = new Integer(0);

    if (!req.getParameter("LINESPERPAGE").equals(""))
       linesPerPage = Integer.decode(req.getParameter("LINESPERPAGE"));

    // Initialize Account Info Value Object
    AccountInfo accountInfo =
      new AccountInfo(req.getParameter("PASSWORD1"),
                      req.getParameter("USERTYPE"),
                      req.getParameter("ALERTMODE"), 25000,
                      linesPerPage);
    try {

      // Using UserManagementSessionFacadeBean, create a new account
      accountNo = rmr.createNewAccount(contactInfo, accountInfo);

    } catch (RemoteException re) {  // Trap Remote Errors
      throw new UserManagementEventException("Remote Exception while sign up : "
                                             + re.toString());
    }
    return accountNo;  // Return the account number of created account
  }



  /**
   *  Method to SignUp a Corporate User.
   * @param email Email Address of the Corporate User
   * @return Account Number of the created account
   * @since   1.0
   */
  public Integer signUpCorporateUser(String email) {

    Integer accountNo = new Integer(0);

    // Initialize a new Contact Info Value Object
    ContactInfo contactInfo = new ContactInfo(" ", " ", " ", " ", " ", " ",
                                              " ", " ", email, " ");

    // Initialize a new Account Info Value Object
    AccountInfo accountInfo = new AccountInfo("welcome", "I", "E", 25000,
                                              new Integer(5));
    try {
      // Create a New Account
      accountNo = rmr.createNewAccount(contactInfo, accountInfo);

    } catch (RemoteException ex) {  // Trap Remote Errors
      System.out.println("Error While Signing Up A Corporate User " + ex);
    }
    return accountNo;
  }

  /**
   * Method to populate Profile (Contact Info and Account Info) for a
   * particular user. After user logged in successfully, his/her
   * Account Number is set as LOGIN.RESPONSE attribute.
   *
   * @param req  Servlet Request Object
   * @return A HashMap data structure containing two objects namely
   *         ContactInfo Value Object and AccountInfo Value Object
   * @exception UserManagementEventException Exception raised when
   *            Populating Profile Information using Session Facade Bean
   * @since   1.0
   */
  public HashMap populateProfile(HttpServletRequest req)
    throws UserManagementEventException {

    HashMap hm = new HashMap();

    try {

      Integer accountNo =
        (Integer) req.getSession().getAttribute("LOGIN.RESPONSE");

      // Get the Contact Info and store in a Hash Map
      hm.put("CONTACTINFO", getContactInfo(accountNo));

      // Get the Account Info and store in a Hash Map
      hm.put("ACCOUNTINFO", rmr.getAccountInfo(accountNo));

    } catch(RemoteException ex) {
      throw new UserManagementEventException("Remote Exception while Populating Profile : "
                                             + ex.toString());
    }
    return hm;
  }

  /**
   * Method to populate Preferences and Alerts(PreferencesInfo and AlertsInfo)
   * for a particular user. After user logged in successfully, his/her
   * Account Number is set as LOGIN.RESPONSE attribute.
   *
   * @param req  Servlet Request Object
   * @return A HashMap data structure containing two collections namely
   *         (a) Collection of PreferencesInfo Value Object
   *         (b) Collection of AlertsInfo Value Object
   * @exception UserManagementEventException Exception raised when
   *          getting either Preferences Info or Alerts Information
   * @since   1.0
   */
  public HashMap populatePreferencesAlerts(HttpServletRequest req)
      throws UserManagementEventException {

    HashMap hm = new HashMap();

    Integer accountNo =
      (Integer) req.getSession().getAttribute("LOGIN.RESPONSE");

    // Get a list of preferences as a collection of PreferencesInfo