public List <FastFileInfo> GetAllFiles(SearchCriteria criteria)
{
//string[] fileEntries = null;
IEnumerable <FastFileInfo> files = null;
//var directory = new DirectoryInfo(criteria.TargetFolder);
var searchPattern = criteria.SearchPattern.Equals(string.Empty) ? "*.*" : criteria.SearchPattern;
var searchOption = criteria.IncludeSubfolders ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
if (criteria.UseDateRange)
{
var startTime = new DateTime();
var endTime = DateTime.Now;
if (criteria.DateRangeToday)
{
startTime = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 0);
}
else if (criteria.DateRangeLast4Hours)
{
startTime = DateTime.Now.AddHours(-4);
}
else if (criteria.DateRangeLastHour)
{
startTime = DateTime.Now.AddHours(-1);
}
else if (criteria.DateRangeJustNow)
{
startTime = DateTime.Now.AddMinutes(-2);
}
else // Use from and to date
{
startTime = criteria.StartTime ?? DateTime.MinValue;
endTime = criteria.EndTime ?? DateTime.MinValue;
}
// Source: https://sourceforge.net/projects/fastfileinfo/
//files = directory.GetFiles(searchPattern, searchOption)
// .Where(f => f.LastWriteTime >= startTime && f.LastWriteTime <= endTime);
files = FastFileInfo.EnumerateFiles(criteria.TargetFolder, searchPattern, searchOption)
.Where(f => f.LastWriteTime >= startTime && f.LastWriteTime <= endTime);
}
else
{
//files = directory.GetFiles(searchPattern, searchOption);
files = FastFileInfo.EnumerateFiles(criteria.TargetFolder, searchPattern, searchOption);
}
return(files.ToList());
}
/// <summary>
/// Gets <see cref="FastFileInfo"/> for all the files in a directory that match a specific filter.
/// </summary>
/// <param name="path">The path to search.</param>
/// <param name="searchPattern">The search string to match against files in the path. Multiple can be specified separated by the pipe character.</param>
/// <returns>An list of FastFileInfo objects that match the specified search pattern.</returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="path"/> is a null reference (Nothing in VB)
/// </exception>
/// <exception cref="ArgumentNullException">
/// <paramref name="filter"/> is a null reference (Nothing in VB)
/// </exception>
public static IList <FastFileInfo> GetFiles(String path, String searchPattern = "*", SearchOption searchOption = SearchOption.TopDirectoryOnly)
{
List <FastFileInfo> list = new List <FastFileInfo>();
String[] arr = searchPattern.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
Hashtable ht = (arr.Length > 1 ? new Hashtable() : null); // don't need to worry about case since it should be consistent
foreach (String sp in arr)
{
String sp2 = sp.Trim();
if (sp2.Length == 0)
{
continue;
}
IEnumerable <FastFileInfo> e = EnumerateFiles(path, sp2, searchOption);
if (ht == null)
{
list.AddRange(e);
}
else
{
var e2 = e.GetEnumerator();
if (ht.Count == 0)
{
while (e2.MoveNext())
{
FastFileInfo f = e2.Current;
list.Add(f);
ht[f.FullName] = f;
}
}
else
{
while (e2.MoveNext())
{
FastFileInfo f = e2.Current;
if (!ht.Contains(f.FullName))
{
list.Add(f);
ht[f.FullName] = f;
}
}
}
}
}
return(list);
}
