public void Start()
{
ListFileSavePath = Path.Combine(SaveFolderPath, ListFileName);
_listFilePuller = new FilePuller(ListFileUrl, ListFileSavePathTmp, PullerMetaFolderPath, _addTicksQueryString);
_listFilePuller.SetFinishCallback(OnListFileRequestFinish);
_listFilePuller.Start();
}
/// <summary>
/// requester finished
/// </summary>
/// <param name="puller">Req.</param>
void OnListFileRequestFinish(FilePuller puller)
{
if (puller.IsError)
{
Error = puller.Error;
ErrorPuller = puller;
OnFinish();
return;
}
if (!puller.HasDownloaded)
{
// 并没有下载，则认为.list文件压根没修改，不需要重复做下载工作了~
OnFinish();
return;
}
// begin download all files, mark the list file changed flag
IsListFileChanged = true;
if (BeforeFilesDownloadEvent != null)
{
BeforeFilesDownloadEvent(this);
}
// read a string list of files
List = new List <string>();
using (var reader = new StreamReader(puller.SavePath))
{
string line;
while ((line = reader.ReadLine()) != null)
{
line = line.Trim();
if (!string.IsNullOrEmpty(line))
{
List.Add(line);
}
}
}
// Start pull the list
PullersList = new List <FilePuller>();
foreach (var line in List)
{
string file;
bool toDelete = false;
if (line.StartsWith("-"))
{
file = line.TrimStart('-').Trim();
toDelete = true; // 进入删除模式
}
else
{
file = line.Trim();
}
var fileUrl = UrlCombine(UrlPrefix, file);
var savePath = Path.Combine(SaveFolderPath, file);
if (toDelete)
{
if (file == "*")
{
DeleteAllOthers();
}
else
{
// just delete, don't pull
if (File.Exists(savePath))
{
File.Delete(savePath);
}
}
}
else
{
var filePuller = new FilePuller(fileUrl, savePath, PullerMetaFolderPath);
PullersList.Add(filePuller);
filePuller.Start();
}
}
ThreadPool.QueueUserWorkItem(ThreadCheckDownloadList, null);
}