Example #1
0
  public static String rndUserID() {
    String nextUser = getNextUserIDFromDeck();
    if (Log.doTrace()) Log.trace("TradeConfig:rndUserID -- new trader = " + nextUser);

    return nextUser;
  }
  /**
   * Main service method for TradeScenarioServlet
   *
   * @param request Object that encapsulates the request to the servlet
   * @param response Object that encapsulates the response from the servlet
   */
  public void performTask(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {

    // Scenario generator for Trade2
    char action = ' ';
    String userID = null;

    // String to create full dispatch path to TradeAppServlet w/ request Parameters
    String dispPath = null; // Dispatch Path to TradeAppServlet

    String scenarioAction = (String) req.getParameter("action");
    if ((scenarioAction != null) && (scenarioAction.length() >= 1)) {
      action = scenarioAction.charAt(0);
      if (action == 'n') { // null;
        try {
          resp.setContentType("text/html");
          PrintWriter out = new PrintWriter(resp.getOutputStream());
          out.println("<HTML><HEAD>TradeScenarioServlet</HEAD><BODY>Hello</BODY></HTML>");
          out.close();
          return;

        } catch (Exception e) {
          Log.error(
              "trade_client.TradeScenarioServlet.service(...)"
                  + "error creating printwriter from responce.getOutputStream",
              e);

          resp.sendError(
              500,
              "trade_client.TradeScenarioServlet.service(...): erorr creating and writing to PrintStream created from response.getOutputStream()");
        } // end of catch
      } // end of action=='n'
    }

    ServletContext ctx = null;
    HttpSession session = null;
    try {
      ctx = getServletConfig().getServletContext();
      // These operations require the user to be logged in. Verify the user and if not logged in
      // change the operation to a login
      session = req.getSession(true);
      userID = (String) session.getAttribute("uidBean");
    } catch (Exception e) {
      Log.error(
          "trade_client.TradeScenarioServlet.service(...): performing "
              + scenarioAction
              + "error getting ServletContext,HttpSession, or UserID from session"
              + "will make scenarioAction a login and try to recover from there",
          e);
      userID = null;
      action = 'l';
    }

    if (userID == null) {
      action = 'l'; // change to login
      TradeConfig.incrementScenarioCount();
    } else if (action == ' ') {
      // action is not specified perform a random operation according to current mix
      // Tell getScenarioAction if we are an original user or a registered user
      // -- sellDeficits should only be compensated for with original users.
      action = TradeConfig.getScenarioAction(userID.startsWith(TradeConfig.newUserPrefix));
    }
    switch (action) {
      case 'q': // quote
        dispPath = tasPathPrefix + "quotes&symbols=" + TradeConfig.rndSymbols();
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'a': // account
        dispPath = tasPathPrefix + "account";
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'u': // update account profile
        dispPath = tasPathPrefix + "account";
        ctx.getRequestDispatcher(dispPath).include(req, resp);

        String fullName = "rnd" + System.currentTimeMillis();
        String address = "rndAddress";
        String password = "xxx";
        String email = "rndEmail";
        String creditcard = "rndCC";
        dispPath =
            tasPathPrefix
                + "update_profile&fullname="
                + fullName
                + "&password="
                + password
                + "&cpassword="
                + password
                + "&address="
                + address
                + "&email="
                + email
                + "&creditcard="
                + creditcard;
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'h': // home
        dispPath = tasPathPrefix + "home";
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'l': // login
        userID = TradeConfig.getUserID();
        String password2 = "xxx";
        dispPath = tasPathPrefix + "login&inScenario=true&uid=" + userID + "&passwd=" + password2;
        ctx.getRequestDispatcher(dispPath).include(req, resp);

        // login is successful if the userID is written to the HTTP session
        if (session.getAttribute("uidBean") == null) {
          System.out.println("TradeScenario login failed. Reset DB between runs");
        }
        break;
      case 'o': // logout
        dispPath = tasPathPrefix + "logout";
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'p': // portfolio
        dispPath = tasPathPrefix + "portfolio";
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 'r': // register
        // Logout the current user to become a new user
        // see note in TradeServletAction
        req.setAttribute("TSS-RecreateSessionInLogout", Boolean.TRUE);
        dispPath = tasPathPrefix + "logout";
        ctx.getRequestDispatcher(dispPath).include(req, resp);

        userID = TradeConfig.rndNewUserID();
        String passwd = "yyy";
        fullName = TradeConfig.rndFullName();
        creditcard = TradeConfig.rndCreditCard();
        String money = TradeConfig.rndBalance();
        email = TradeConfig.rndEmail(userID);
        String smail = TradeConfig.rndAddress();
        dispPath =
            tasPathPrefix
                + "register&Full Name="
                + fullName
                + "&snail mail="
                + smail
                + "&email="
                + email
                + "&user id="
                + userID
                + "&passwd="
                + passwd
                + "&confirm passwd="
                + passwd
                + "&money="
                + money
                + "&Credit Card Number="
                + creditcard;
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
      case 's': // sell
        dispPath = tasPathPrefix + "portfolioNoEdge";
        ctx.getRequestDispatcher(dispPath).include(req, resp);

        Collection holdings = (Collection) req.getAttribute("holdingDataBeans");
        int numHoldings = holdings.size();
        if (numHoldings > 0) {
          // sell first available security out of holding

          Iterator it = holdings.iterator();
          boolean foundHoldingToSell = false;
          while (it.hasNext()) {
            HoldingDataBean holdingData = (HoldingDataBean) it.next();
            if (!(holdingData.getPurchaseDate().equals(new java.util.Date(0)))) {
              Integer holdingID = holdingData.getHoldingID();

              dispPath = tasPathPrefix + "sell&holdingID=" + holdingID;
              ctx.getRequestDispatcher(dispPath).include(req, resp);
              foundHoldingToSell = true;
              break;
            }
          }
          if (foundHoldingToSell) break;
          if (Log.doTrace())
            Log.trace(
                "TradeScenario: No holding to sell -switch to buy -- userID = "
                    + userID
                    + "  Collection count = "
                    + numHoldings);
        }
        // At this point: A TradeScenario Sell was requested with No Stocks in Portfolio
        // This can happen when a new registered user happens to request a sell before a buy
        // In this case, fall through and perform a buy instead

        /* Trade 2.037: Added sell_deficit counter to maintain correct buy/sell mix.
         * When a users portfolio is reduced to 0 holdings, a buy is requested instead of a sell.
         * This throws off the buy/sell mix by 1. This results in unwanted holding table growth
         * To fix this we increment a sell deficit counter to maintain the correct ratio in getScenarioAction
         * The 'z' action from getScenario denotes that this is a sell action that was switched from a buy
         * to reduce a sellDeficit
         */
        if (userID.startsWith(TradeConfig.newUserPrefix) == false) {
          TradeConfig.incrementSellDeficit();
        }
      case 'b': // buy
        String symbol = TradeConfig.rndSymbol();
        String amount = TradeConfig.rndQuantity() + "";

        dispPath = tasPathPrefix + "quotes&symbols=" + symbol;
        ctx.getRequestDispatcher(dispPath).include(req, resp);

        dispPath = tasPathPrefix + "buy&quantity=" + amount + "&symbol=" + symbol;
        ctx.getRequestDispatcher(dispPath).include(req, resp);
        break;
    } // end of switch statement
  }