using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace Humep.FileWatcher
{
/// <summary>
///
/// </summary>
public static class DirectoryHelper
{
/// <summary>
/// 初始化目录
/// </summary>
/// <param name="directory"></param>
/// <returns></returns>
public static bool CreateDirectory(string directory)
{
if (string.IsNullOrWhiteSpace(directory))
{
return false;
}
if (Directory.Exists(directory))
{
return true;
}
var dirInfo = Directory.CreateDirectory(directory);
return dirInfo != null;
}
/// <summary>
/// 根据当前日组合文件夹名称
/// </summary>
/// <param name="now"></param>
/// <returns></returns>
public static string BuildDateDirectoryName(DateTime dateTime)
{
return dateTime.ToString("yyyyMMdd");
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public static string BuildTodayDirectoryName()
{
return BuildDateDirectoryName(DateTime.Now);
}
/// <summary>
/// 获取目录名称
/// </summary>
/// <param name="directory"></param>
/// <returns></returns>
public static string GetDirectoryName(string directory)
{
if (!Directory.Exists(directory))
{
return string.Empty ;// DirectoryHelper.CreateDirectory(directory);
}
return new DirectoryInfo(directory).Name;
}
/// <summary>
/// 获取目录文件夹下的所有子目录
/// </summary>
/// <param name="directory"></param>
/// <param name="filePattern"></param>
/// <returns></returns>
public static List<string> FindSubDirectories(string directory, int maxCount)
{
List<string> subDirectories = new List<string>();
if (string.IsNullOrEmpty(directory))
{
return subDirectories;
}
if (maxCount <= 0)
{
return subDirectories;
}
string[] directories = Directory.GetDirectories(directory);
foreach (string subDirectory in directories)
{
if (subDirectories.Count == maxCount)
{
break;
}
subDirectories.Add(subDirectory);
}
return subDirectories;
}
public static List<string> FindSubDirectories(string directory)
{
return Directory.GetDirectories(directory, "*", SearchOption.AllDirectories).ToList<string>();
}
/// <summary>
/// 根据时间查询子目录
/// </summary>
/// <param name="directory"></param>
/// <param name="maxCount"></param>
/// <returns></returns>
public static List<string> FindSubDirectories(string directory, int maxCount, int days)
{
List<string> subDirectories = new List<string>();
if (string.IsNullOrEmpty(directory))
{
return subDirectories;
}
if (maxCount <= 0)
{
return subDirectories;
}
string[] directories = Directory.GetDirectories(directory);
DateTime lastTime = DateTime.Now.AddDays(-Math.Abs(days));
foreach (string subDirectory in directories)
{
if (subDirectories.Count == maxCount)
{
break;
}
DirectoryInfo dirInfo = new DirectoryInfo(subDirectory);
if (dirInfo.LastWriteTime >= lastTime)
{
subDirectories.Add(subDirectory);
}
}
return subDirectories;
}
/// <summary>
/// 将原目录移动到目标目录
/// </summary>
/// <param name="sourceDirectory"></param>
/// <param name="targetDirectory"></param>
/// <returns></returns>
public static bool MoveDirectory(string sourceDirectory, string targetDirectory)
{
if (string.IsNullOrEmpty(sourceDirectory) || string.IsNullOrEmpty(targetDirectory))
{
return false;
}
string laseMoveDirectory = string.Format("{0}//{1}", targetDirectory, DirectoryHelper.GetDirectoryName(sourceDirectory));
while (Directory.Exists(laseMoveDirectory))
{
laseMoveDirectory = DirectoryHelper.Rename(laseMoveDirectory);
}
Directory.Move(sourceDirectory, laseMoveDirectory);
return true;
}
/// <summary>
/// 重新生成新的文件路径
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string Rename(string filePath)
{
if (string.IsNullOrWhiteSpace(filePath))
{
return string.Empty;
}
string lastDirName = DirectoryHelper.GetDirectoryName(filePath);
//重命名，则随机在原来文件名后面加几个随机数字进行组装成新的名字
Random random = new Random(System.DateTime.Now.Millisecond);
string randomData = random.Next().ToString();
//把原文件名的名字加上随机数，组装成新的文件名（避免重名）
string newlastDirName = lastDirName + randomData;
string newDirPath = string.Empty;
newDirPath = filePath.Substring(0, filePath.LastIndexOf("//")) + "//" + newlastDirName;
//返回新的路径
return newDirPath;
}
/// <summary>
/// 获取指定目录下的所有文件和文件夹大小
/// </summary>
/// <param name="path">目录路径</param>
/// <returns>string，返回所有文件夹名字</returns>
public static long GetDirectorySize(string path)
{
long dirSize = 0;
DirectoryInfo dir = new DirectoryInfo(path);
foreach (FileInfo file in dir.GetFiles())
dirSize += file.Length;
foreach (DirectoryInfo subdir in dir.GetDirectories())
dirSize += GetDirectorySize(subdir.FullName);
return dirSize;
}
}
}
