/// <summary>
/// Searches the text using various methods.
/// </summary>
private static void SearchTextUsingVariousMethods()
{
try
{
Console.WriteLine();
Console.WriteLine("Please enter the search term:");
string searchTerm = Console.ReadLine();
if (string.IsNullOrEmpty(searchTerm))
{
Console.WriteLine("Search Term cannot be empty...Enter any key to exit");
Console.ReadLine();
return;
}
Console.WriteLine("Enter the Search Method selection (search is case insensitive for all methods), as follows:");
Console.WriteLine("Enter 1 for String Match based searching");
Console.WriteLine("Enter 2 for Regular Expression based searching");
Console.WriteLine("Enter 3 for Index/Memory based searching");
Console.WriteLine("Enter anything else to exit the system");
string selectedOption = Console.ReadLine();
string errorMsg;
List <FileEntity> fileEntityList;
var stopWatch = new Stopwatch();
var searchTxt = new SearchTexts(_sourceFilesPath); //Hard coding the path for this purpose
stopWatch.Start();
switch (selectedOption)
{
case "1":
fileEntityList = searchTxt.SearchThroughStringSearch(searchTerm, out errorMsg);
break;
case "2":
fileEntityList = searchTxt.SearchThroughRegularExpression(searchTerm, out errorMsg);
break;
case "3":
fileEntityList = searchTxt.SearchThroughMemoryDataDictionary(searchTerm, out errorMsg);
break;
default:
return;
}
stopWatch.Stop();
if (string.IsNullOrEmpty(errorMsg)) //If no error returned by the method
{
Console.WriteLine();
Console.WriteLine("Search Result: ");
for (int i = 0; i < fileEntityList.Count; i++)
{
Console.WriteLine(" " + fileEntityList[i].FileName + " - " + fileEntityList[i].TextSearchHitCount + " matches");
}
Console.WriteLine("Elapsed Time: " + stopWatch.ElapsedMilliseconds + " ms");
}
else
{
Console.WriteLine("Error: " + errorMsg);
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
Console.ReadLine();
}
}
/// <summary>
/// Runs the performance test.
/// </summary>
private static void RunPerformanceTest()
{
try
{
string allTheData = string.Empty;
string[] allFiles = Directory.GetFiles(_sourceFilesPath); //Get all the files from the given folder
for (int i = 0; i < allFiles.Length; i++)
{
allTheData += File.ReadAllText(allFiles[i]) + " ";
}
string[] allTheWords = allTheData.Split(' ');
Console.WriteLine();
Console.WriteLine("~~~~~~~~ Performance Testing Mode ~~~~~~~~");
Console.WriteLine();
Console.WriteLine("How many times should the searching be performed (enter numeric value)?");
int loopCount = 0;
while (true)
{
try
{
loopCount = Convert.ToInt32(Console.ReadLine());
break;
}
catch (Exception ex)
{
Console.WriteLine("Please enter only numeric value...Try again");
}
}
//Use this below to display something to the user as processing takes time...
int theTenthPortion = 1;
if (loopCount > 10)
{
theTenthPortion = loopCount / 10;
}
Console.WriteLine("Press enter to start testing...");
Console.ReadLine();
string errorMsg;
var stopWatch = new Stopwatch();
var rndm = new Random();
var searchTxt = new SearchTexts(_sourceFilesPath);
Console.WriteLine("Starting: " + DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss"));
Console.WriteLine();
//~~~~~~~~~~~~~~~~~~ Performance using String Search
stopWatch.Start();
for (int i = 0; i < loopCount; i++)
{
var wordToSearch = allTheWords[rndm.Next(0, allTheWords.Length - 2)];
searchTxt.SearchThroughStringSearch(wordToSearch, out errorMsg);
if (i % theTenthPortion == 0)
{
Console.Write(".");
}
}
stopWatch.Stop();
Console.WriteLine(" Using String Search, total time taken to execute " + loopCount + " searches: " + stopWatch.ElapsedMilliseconds + " ms");
//~~~~~~~~~~~~~~~~~~ Performance using Regular Expression
stopWatch.Reset(); //Reset the watch clock to reset the elapsed time
stopWatch.Start(); //Start it back now
for (int i = 0; i < loopCount; i++)
{
var wordToSearch = allTheWords[rndm.Next(0, allTheWords.Length - 2)];
searchTxt.SearchThroughRegularExpression(wordToSearch, out errorMsg);
if (i % theTenthPortion == 0)
{
Console.Write(".");
}
}
stopWatch.Stop();
Console.WriteLine(" Using Regular Expression, total time taken to execute " + loopCount + " searches: " + stopWatch.ElapsedMilliseconds + " ms");
//~~~~~~~~~~~~~~~~~~ Performance using PreLoaded Dictionary
stopWatch.Reset(); //Reset the watch clock to reset the elapsed time
stopWatch.Start(); //Start it back now
for (int i = 0; i < loopCount; i++)
{
var wordToSearch = allTheWords[rndm.Next(0, allTheWords.Length - 2)];
searchTxt.SearchThroughMemoryDataDictionary(wordToSearch, out errorMsg);
if (i % theTenthPortion == 0)
{
Console.Write(".");
}
}
stopWatch.Stop();
Console.WriteLine(" Using In Memory Dictionary, total time taken to execute " + loopCount + " searches: " + stopWatch.ElapsedMilliseconds + " ms");
Console.WriteLine();
Console.WriteLine("End: " + DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss"));
}
catch (Exception ex)
{
Console.WriteLine(ex);
Console.ReadLine();
}
}
