/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="DirFullPath">文件夹全路径</param>
/// <param name="DirOperateOption">选项</param>
/// <returns></returns>
public static bool CreateDir(string DirFullPath, DirectoryOption Option)
{
try
{
if (Directory.Exists(DirFullPath))
{
if (Option == DirectoryOption.ExistDelete)
{
Directory.Delete(DirFullPath, true);
}
else
{
return(false);
}
}
Directory.CreateDirectory(DirFullPath);
return(true);
}
catch
{
return(false);
}
}
/**
* @ 创建目录类型的缓存，主要用于监控文件数量
* @ key 缓存的键
* @ path 路径，请确保路径存在
* @ offset 缓存有效时间
* @ searchPattern 搜索匹配关键字，默认：*
* @ searchOption 文件搜索选项，默认TopDirectoryOnly
* @ direcotryOption 目录缓存选项，默认FileAmountOnly
* @ priority 逐出缓存优先级策略
* */
public static string CreateDirectoryCache(string key, string path, DateTimeOffset offset, string searchPattern = "*", SearchOption searchOption = SearchOption.TopDirectoryOnly, DirectoryOption direcotryOption = DirectoryOption.FileAmountOnly, CacheItemPriority priority = CacheItemPriority.Default)
{
if (string.IsNullOrEmpty(key))
{
throw new ArgumentNullException("key不能为空");
}
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path不能为空");
}
bool isNotExists = Directory.Exists(path);
if (isNotExists)
{
throw new ArgumentNullException(string.Format("指定目录：{0}不存在！", path));
}
object values = GLCacheExpiration.Cache.Get(key);
if (values == null)
{
CacheItemPolicy policy = new CacheItemPolicy();
List <string> fp = new List <string>()
{
path
};
HostFileChangeMonitor monitor = new HostFileChangeMonitor(fp);
policy.AbsoluteExpiration = offset;
policy.Priority = priority;
policy.ChangeMonitors.Add(monitor);
string[] files = Directory.GetFiles(path, searchPattern, searchOption);
if (direcotryOption == DirectoryOption.FileAmountOnly)
{
values = files == null ? 0 : files.Length;
}
else if (direcotryOption == DirectoryOption.FileNameArray)
{
values = files;
}
CacheItem chitem = new CacheItem(key, values);
Cache.AddOrGetExisting(chitem, policy);
}
return(values.ToString());
}
