/// <summary>
/// This method can be used to "track" files count and currentPaths using threaded lists while iterating thourg big directory.
/// </summary>
/// <param name="files"></param>
/// <param name="paths"></param>
/// <param name="fileSearchPattern"></param>
/// <param name="directorySearchPattern"></param>
/// <param name="includeSubdirectories"></param>
/// <returns>Item1: file list, Item 2: directory list</returns>
public static Tuple <string[], string[]> TryGetFilesAndDirectories(ThreadedList <string> files, ThreadedList <string> paths, string fileSearchPattern = "*", string directorySearchPattern = "*", bool includeSubdirectories = true, ThreadedList <string> currentPaths = null)
{
if (files == null || paths == null)
{
throw new ArgumentNullException("Files and paths can't be null.");
}
if (paths.Count == 0)
{
return(new Tuple <string[], string[]>(files.ToArray(), new string[0]));
}
var _paths = paths.ToArray();
ThreadedList <string> subPaths = new ThreadedList <string>();
if (!_paths.IsNullOrEmpty())
{
Parallel.ForEach(_paths, (path) =>
{
if (path.IsNullOrEmpty())
{
return;
}
try { subPaths.AddRange(Directory.GetDirectories(path, directorySearchPattern, SearchOption.TopDirectoryOnly)); } catch { }
try { files.AddRange(Directory.GetFiles(path, fileSearchPattern, SearchOption.TopDirectoryOnly).ToList()); } catch { }
});
}
currentPaths?.AddRange(subPaths);
if (includeSubdirectories)
{
paths.AddRange(TryGetFilesAndDirectories(files, subPaths.Clone(), fileSearchPattern, directorySearchPattern, true, currentPaths).Item2);
}
else
{
paths.AddRange(subPaths);
}
return(new Tuple <string[], string[]>(files.ToArray(), paths.ToArray()));
}
public static string[] TryGetDirectories(ThreadedList <string> paths, string searchPattern = "*", bool includeSubdirectories = true)
{
if (paths.IsNullOrEmpty())
{
return(new string[0]);
}
var _paths = paths.ToArray();
ThreadedList <string> subPaths = new ThreadedList <string>();
if (!_paths.IsNullOrEmpty())
{
Parallel.ForEach(_paths, (path) =>
{
if (!path.IsNullOrEmpty())
{
try
{
subPaths.AddRange(Directory.GetDirectories(path, searchPattern, SearchOption.TopDirectoryOnly));
}
catch
{
}
}
});
}
if (includeSubdirectories)
{
paths.AddRange(TryGetDirectories(subPaths.Clone(), searchPattern, true));
}
else
{
paths.AddRange(subPaths);
}
return(paths.ToArray());
}
