void GetStats(System.Collections.Generic.List <float> input, out float mean, out float median, out float min, out float max)
{
mean = input.Average();
min = input.Min();
max = input.Max();
median = input.OrderBy(sample => sample).ToList().ElementAt(input.Count / 2);
}
}// end Reconnect code segment.
private void axTws1_tickPrice(object sender, AxTWSLib._DTwsEvents_tickPriceEvent e)
{
// If the price is the Last Price, add it to the list of prices
if (e.tickType == 4)
{
listOfPrices.Add(e.price);
/* Not this is currently just adding the price from connection to the chart, we might need
* more data for functions */
OurChart.ChartAreas[0].AxisY.Maximum = listOfPrices.Max() + .05;
OurChart.ChartAreas[0].AxisY.Minimum = listOfPrices.Min() - .05;
OurChart.Series["Price"].Points.AddY(e.price);
if (listOfPrices.Count() > 19)
{
OurChart.DataManipulator.FinancialFormula(FinancialFormula.MovingAverage, "20", "Price", "SMA-20 D");
OurChart.DataManipulator.FinancialFormula(FinancialFormula.ExponentialMovingAverage, "20", "Price", "EMA-20 D");
}
}
}// end TWS tick price event handler
} // end btnSubmit_Click
private void axTws1_historicalData(object sender, AxTWSLib._DTwsEvents_historicalDataEvent e)
{
// Handle the incoming historical data records.
// Object e contains:
// e.date Date (and time) of the historical data bar
// e.open The opening price of the bar/interval
// e.high The high price for the bar/interval
// e.low The low price for the bar/interval
// e.close The closing price of the bar/interval
// e.volume The volume (number of shares/contract) for the bar/interval
// e.wAP The average price during the bar/interval
// Add data points to the chart
if (e.close > 0.0)
{
histCloses.Add(e.close);
chtStocks.Series["Closing Prices"].Points.AddXY(e.date, e.close);
chtStocks.ChartAreas[0].AxisY.Minimum = histCloses.Min() - .5;
} //end axTws1_historicalData
}
public void TestPerfData()
{
// Trace.TraceInformation("Starting TestPerfData");
Trace.TraceInformation("Starting TestPerfData", "Information");
try
{
var account = Microsoft.WindowsAzure.CloudStorageAccount.FromConfigurationSetting("DataConnectionString");
var context = new PerformanceDataContext(account.TableEndpoint.ToString(), account.Credentials);
var data = context.PerfData;
DateTime dtnow = DateTime.UtcNow.AddMinutes(-30);
DateTime dtnow2 = DateTime.UtcNow.AddMinutes(-20);
System.Collections.Generic.List <PerformanceData> selectedData = (from d in data
where d.CounterName == @"\Processor(_Total)\% Processor Time" &&
d.EventTickCount >=
dtnow.Ticks && d.EventTickCount <=
dtnow2.Ticks &&
d.Role == "ProjectCS218"
select d).ToList <PerformanceData>();
Trace.TraceInformation(selectedData.Count.ToString() + " " + dtnow.Ticks + " " + dtnow2.Ticks);;
double AvgCPU = selectedData.Where(p => p.CounterName == @"\Processor(_Total)\% Processor Time").DefaultIfEmpty().Average(p => p == null ? 0 : p.CounterValue);
/* double AvgCPU = (from d in selectedData
* where d.CounterName == @"\Processor(_Total)\% Processor Time"
* select d.CounterValue).Average();*/
//Trace.WriteLine("Average CPU == " + AvgCPU.ToString());
Trace.TraceInformation("Average CPU == " + AvgCPU.ToString(), "Information Role Name");
Trace.TraceInformation("Max Time Stamp CPU == " + selectedData.Max(item => item.Timestamp).ToString(), "Information");
Trace.TraceInformation("Min Time Stamp CPU == " + selectedData.Min(item => item.Timestamp).ToString(), "Information");
//test threshold
if (AvgCPU >= 1)
{
Trace.TraceInformation("Increase the instance by adding one more role" + AvgCPU.ToString(), "Information");
// Trace.TraceInformation(selectedData.Max(item => item.Timestamp).ToString(), "Information");
//Trace.TraceInformation(selectedData.Min(item => item.Timestamp).ToString(), "Information");
//increase instances
string deploymentInfo = AzureRESTMgmtHelper.GetDeploymentInfo();
string svcconfig = AzureRESTMgmtHelper.GetServiceConfig(deploymentInfo);
int InstanceCount = System.Convert.ToInt32(AzureRESTMgmtHelper.GetInstanceCount(svcconfig, "ProjectCS218"));
if (InstanceCount == 1)
{
InstanceCount++;
Trace.TraceInformation("Average CPU == " + AvgCPU.ToString(), "Information" + " Instance Count increased by 1");
string UpdatedSvcConfig = AzureRESTMgmtHelper.ChangeInstanceCount(svcconfig, "ProjectCS218", InstanceCount.ToString());
AzureRESTMgmtHelper.ChangeConfigFile(UpdatedSvcConfig);
}
}
else if (AvgCPU < 1) //50
{
Trace.TraceInformation("in the AvgCPU < 5 test.");
string deploymentInfo = AzureRESTMgmtHelper.GetDeploymentInfo();
string svcconfig = AzureRESTMgmtHelper.GetServiceConfig(deploymentInfo);
int InstanceCount = System.Convert.ToInt32(AzureRESTMgmtHelper.GetInstanceCount(svcconfig, "ProjectCS218"));
if (InstanceCount > 1)
{
InstanceCount--;
string UpdatedSvcConfig = AzureRESTMgmtHelper.ChangeInstanceCount(svcconfig, "ProjectCS218", InstanceCount.ToString());
AzureRESTMgmtHelper.ChangeConfigFile(UpdatedSvcConfig);
}
}
}
catch (System.Exception ex)
{
Trace.TraceInformation(ex.StackTrace, "Information");
Trace.WriteLine("Worker Role Error: " + ex.Message);
}
}