// crudwork
// Copyright 2004 by Steve T. Pham (http://www.crudwork.com)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with This program. If not, see
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.CodeDom.Compiler;
using System.Text.RegularExpressions;
namespace crudwork.Utilities
{
///
/// File Utility
///
public static class FileUtil
{
#region Enums
///
/// File order type for sorting list of filenames
///
public enum FileOrderType
{
///
/// No sort
///
None = 0,
///
/// Sort by filename
///
Filename = 1,
///
/// Sort by extension
///
Extension = 2,
///
/// Sort by the size
///
Size = 3,
///
/// Sort by last modified timestamp
///
LastWriteTime = 4,
///
/// Sort by file creation timestamp
///
CreationDate = 5,
}
#endregion
#region GetFiles / GetFolders methods
///
/// Shorten the folder name
///
///
///
///
public static string[] MakeRelativePath(string[] fileList, string path)
{
List results = new List();
for (int i = 0; i < fileList.Length; i++)
{
string file = fileList[i];
results.Add(file.Replace(path + "\\", ""));
}
return results.ToArray();
}
///
/// sort the file list based on the given order type
///
///
///
///
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;
}
#endregion
}
}