/// <summary>
/// sort the file list based on the given order type
/// </summary>
/// <param name="fileList"></param>
/// <param name="fileOrderType"></param>
/// <returns></returns>
public static string[] OrderFileBy(string[] fileList, FileOrderType fileOrderType)
{
string[] orderKey = new string[fileList.Length];
string[] orderVal = new string[fileList.Length];
//int maskLength = StringUtil.MaxLength(fileList);
int maskLength = 100;
string maskFormat = String.Format(@"{{0,{0}}}", maskLength);
for (int i = 0; i < fileList.Length; i++)
{
string filename = fileList[i];
string orderByKey;
if (!File.Exists(filename))
{
throw new FileNotFoundException(filename);
}
FileInfo fi = new FileInfo(filename);
switch (fileOrderType)
{
case FileOrderType.None:
orderByKey = "";
break;
case FileOrderType.Filename:
{
orderByKey = String.Format(maskFormat, fi.Name);
}
break;
case FileOrderType.LastWriteTime:
{
DateTime dt = fi.LastWriteTime;
orderByKey = String.Format("{0:0000}{1:00}{2:00}{3:00}{4:00}{5:00}{6:000}",
dt.Year,
dt.Month,
dt.Day,
dt.Hour,
dt.Minute,
dt.Second,
dt.Millisecond
);
}
break;
default:
throw new ArgumentOutOfRangeException("not supported: " + fileOrderType);
}
orderKey[i] = orderByKey;
orderVal[i] = fileList[i];
}
if (fileOrderType != FileOrderType.None)
{
Array.Sort(orderKey, orderVal);
}
return(orderVal);
}
/// <summary>
/// Return a list of filenames
/// </summary>
/// <param name="path"></param>
/// <param name="patterns"></param>
/// <param name="searchOption"></param>
/// <param name="relativePath"></param>
/// <param name="fileOrderType"></param>
/// <returns></returns>
public static string[] GetFiles(string path, string patterns, SearchOption searchOption, bool relativePath, FileOrderType fileOrderType)
{
List <String> results = new List <string>();
string[] patternList = SplitExtension(patterns);
// handle multiple patterns, such as "*.AAA,*.BBB,*.CCC"
for (int j = 0; j < patternList.Length; j++)
{
results.AddRange(Directory.GetFiles(path, patternList[j], searchOption));
}
// apply order by ...
string[] orderList = OrderFileBy(results.ToArray(), fileOrderType);
// apply relative path ...
if (!relativePath)
{
return(orderList);
}
else
{
return(MakeRelativePath(orderList, path));
}
}
