Design the Virtual User

Create a new Virtual User in the current project. You are going to create one action for each RMI call, as this will allow you to retrieve access time statistics for each call.

• To design a Virtual User

1. Place three "JavaScript" logical actions in the Virtual User. For example: "connect" ,"getStockQuoteUSD", and "getStockQuoteEur".
2. Place a "Delay" action in between each JavaScript action.
3. Modify the wait time for each delay. This must correspond to the time between the two calls in the simulated application.
4. Replace the default code for each action. The JavaScript code for the three actions is as follows:
   • connect

     var sampleClient = Packages.com.neotys.test.rmi.client.SampleClient(); 

     sampleClient.connect(); 

     context.currentVU.put("sampleClient", sampleClient); 

     logger.debug("sampleClient connected");

     The script creates an instance of the SampleClient class and makes the connection to the server. The sampleClient instance is stored within the Virtual User instance, for use by the subsequent requests. Thus, you have one instance of SampleClient per Virtual User instance throughout the test.

   • getStockQuoteUSD

     var sampleClient = context.currentVU.get("sampleClient"); 

     var stockSymbol = context.variableManager.getValue("stockSymbols.symbol"); 

     logger.debug("stockSymbol=" + stockSymbol); 

     sampleClient.getStockQuoteUSD(stockSymbol);

     The script retrieves the sampleClient instance stored by the previous script, then interprets the "stockSymbols" variable created previously. The getStockQuoteUSD method makes the RMI call that retrieves the price for the stock whose symbol is taken from the CSV file. The dollar value is stored within the SampleClient, to be used as an argument in the following call.

   • getStockQuoteEuro

     var sampleClient = context.currentVU.get("sampleClient"); 

     var stockValueEuro = sampleClient.getStockQuoteEUR(); 

     logger.debug("Stock price €" + stockValueEuro); 

     context.variableManager.setValue("stockPriceEUR", stockValueEuro);

     The script retrieves the sampleClient instance stored by the first script, then makes the call to the RMI method that allows the previously-stored dollar value to be converted into Euros. The call to the VariableManager allows the value retrieved by RMI to be injected into a NeoLoad variable. This value may then be used in NeoLoad, for example as a classic HTTP request parameter. This is outside the scope of this example however.