public static void Watcher(string[] args)
{
if (TestArgs.TestValid(args))
{
var guessPath = Path.GetFullPath($"{args[0]}\\");
Console.WriteLine($"\tThe current directory is: {Environment.CurrentDirectory} ");
Console.WriteLine($"\tThe directory you entered = {guessPath}");
if (Directory.Exists(guessPath))
{
DelegateObject MyParams = new DelegateObject
{
arguments = args,
guessPath = guessPath
};
// Start watching the files for changes.
Console.WriteLine("About to start the Watcher Thread...");
Thread watcher = new Thread(new ParameterizedThreadStart(WatcherThread.ThreadAction));
Status.ReportInitialStatus(args, guessPath);
watcher.Start(MyParams);
watcher.IsBackground = true;
var input = "";
do
{
Console.WriteLine("Type 'quit' to stop the program.");
input = Console.ReadLine();
} while (input != "quit");
watcher.Abort();
}
else
{
Console.WriteLine($"\nDirectory {guessPath} \nDOES NOT EXIST.");
// Ask for the arguments again.
Watcher(Status.GetInputs());
}
}
else
{
// Ask for the arguments again.
Watcher(Status.GetInputs());
}
}
public static void ThreadAction(object obj)
{
var myParams = new DelegateObject();
myParams = (DelegateObject)obj;
try
{
var nextNames = new List <string>();
var nextLengths = new List <long>();
var nextTimes = new List <DateTime>();
var trips = 0;
while (true)
{
var files = new DirectoryInfo(myParams.guessPath).GetFiles(myParams.arguments[1]);
var names = new List <string>();
var lengths = new List <long>();
var times = new List <DateTime>();
foreach (var file in files)
{
names.Add(file.Name);
lengths.Add(file.Length);
times.Add(file.LastWriteTime);
}
if (trips > 0)
{
if (names.Count < nextNames.Count)
{
// Something was deleted. Find it.
Console.WriteLine($"\nWhoa! Something was deleted!");
var deletedFile = new List <string>();
foreach (var name in nextNames)
{
if (!names.Contains(name))
{
deletedFile.Add(name);
}
}
Console.WriteLine($"\nSome files were deleted. They are:\n");
foreach (var file in deletedFile)
{
Console.WriteLine($"{file}");
}
Console.WriteLine("\nType 'quit' to stop the program.");
}
else if (names.Count > nextNames.Count)
{
// A file was added. Find it.
Console.WriteLine($"\nWhoa! Something was added!");
var addedFiles = new List <string>();
foreach (var name in names)
{
if (!nextNames.Contains(name))
{
addedFiles.Add(name);
}
}
Console.WriteLine("\nThese files were added:\n");
foreach (var file in addedFiles)
{
Console.WriteLine($"{file} has {file.Length} bytes.");
}
Console.WriteLine("\nType 'quit' to stop the program.");
}
else
{
for (int i = 0; i < times.Count; i++)
{
if (!times[i].Equals(nextTimes[i]))
{
if (lengths[i] - nextLengths[i] != 0)
{
// Some file was modified
Console.WriteLine($"\nWhoa! A file was accessed!");
Console.WriteLine($"File {files[i].Name} was changed. \nIt's old length was {nextLengths[i]} and its new length is {lengths[i]}. \nA difference of {lengths[i] - nextLengths[i]} bytes.");
Console.WriteLine("\nType 'quit' to stop the program.");
}
else
{
// Some file was accessed but not modified.
Console.WriteLine($"\nWhoa! A file was accessed!\nFile {files[i].Name} was accessed but no changes were made.");
Console.WriteLine("\nType 'quit' to stop the program.");
}
}
}
}
}
nextNames = names;
nextLengths = lengths;
nextTimes = times;
trips++;
// Yield the rest of the time slice.
Thread.Sleep(10000);
}
}
catch (ThreadAbortException abortException)
{
Console.WriteLine((string)abortException.ExceptionState);
}
}
