/// <summary> 获取下好的文件 返回null则需要等待 </summary>
public string GetWaitCurrent(string file, Action <bool, int, int> action)
{
// Message：如果没下载完，则等待15s数据都下载完为止
flag = false;
var result = this._fileCollection.Find(l => l.FilePath == file);
int last = this._fileCollection.FindIndex(l => l.FilePath == _current.FilePath);
int now = this._fileCollection.FindIndex(l => l.FilePath == file);
_current = result;
// Message：如果时间相差较多，重新分配下载区间
if (now - last > 5 * 15)
{
this.RefreshPosition(_current.FilePath);
}
if (last - now > 0)
{
this.RefreshPosition(_current.FilePath);
}
if (result.IsLoaded == 2)
{
return(result.LocalPath);
}
else
{
Thread.Sleep(1000);
flag = true;
var waitCache = _fileCollection.Skip(now).Take(this.Capacity).ToList();
while (!waitCache.TrueForAll(l => l.IsLoaded == 2))
{
if (!flag)
{
Debug.WriteLine("取消等待");
return(null);
}
Thread.Sleep(500);
action(false, waitCache.FindAll(l => l.IsLoaded == 2).Count, waitCache.Count);
}
action(true, waitCache.FindAll(l => l.IsLoaded == 2).Count, waitCache.Count);
return(result.LocalPath);
}
}
public ImageCacheEngine(List <string> filePath, string localFolder, string startFile, string user, string password, string ip = "")
{
this.ID = Guid.NewGuid().ToString();
this.LocalFolder = Path.Combine(localFolder, this.ID);
if (!Directory.Exists(this.LocalFolder))
{
Directory.CreateDirectory(this.LocalFolder);
}
foreach (var item in filePath)
{
string localPath = Path.Combine(localFolder, this.ID, Path.GetFileName(item));
ImageCacheEntity entity = new ImageCacheEntity(item, localPath, user, password, ip);
_fileCollection.Add(entity);
}
_current = _fileCollection.Find(l => l.FilePath == startFile);;
}