public static JournalQueryResponseItem ToResponse(this PersistenceItem persistenceItem)
{
if (persistenceItem == null)
{
throw new ArgumentNullException(nameof(persistenceItem));
}
var retVal = new JournalQueryResponseItem {
Operation = persistenceItem.Name,
Date = persistenceItem.TimeStamp
};
switch (persistenceItem.Name)
{
case CalculatorServiceConstants.AddOperation:
retVal.Calculation = $"{string.Join(" + ", persistenceItem.Values)} = {persistenceItem.Result}";
break;
case CalculatorServiceConstants.DivOperation:
retVal.Calculation = $"{persistenceItem.Values[0]} / {persistenceItem.Values[1]} = {persistenceItem.Result}";
break;
case CalculatorServiceConstants.MultOperation:
retVal.Calculation = $"{string.Join(" * ", persistenceItem.Values)} = {persistenceItem.Result}";
break;
case CalculatorServiceConstants.SqrtOperation:
retVal.Calculation = $"x ^ {persistenceItem.Values[0]} = {persistenceItem.Result}";
break;
case CalculatorServiceConstants.SubOperation:
retVal.Calculation = $"{persistenceItem.Values[0]} - {persistenceItem.Values[1]} = {persistenceItem.Result}";
break;
}
return(retVal);
}
/// <summary>
/// Stores a operation on the cache
/// </summary>
/// <param name="name">Operation name</param>
/// <param name="values">Array of values</param>
/// <param name="result">Operation result</param>
public void SaveOperation(string trackingID, string name, int[] values, object result)
{
var operation = new PersistenceItem(trackingID, name, values, result);
_cache.Enqueue(operation);
}