void OnDownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
DownloadFileInfo file = e.UserState as DownloadFileInfo;
nDownloadedTotal += file.Size;
this.SetProcessBar(0, (int)(nDownloadedTotal * 100 / total));
LogHelper.Debug(String.Format("Finish Download:{0}", file.FileName));
//Debug.WriteLine(String.Format("Finish Download:{0}", file.FileName));
//替换现有文件
string filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, file.FileFullName);
try
{
if (File.Exists(filePath))
{
if (File.Exists(filePath + ".old"))
{
File.Delete(filePath + ".old");
}
File.Move(filePath, filePath + ".old");
}
File.Move(filePath + ".tmp", filePath);
}
catch (Exception ex)
{
LogHelper.Error(string.Format("move file failed: filepath【{0}】;errror msg【{1}】", filePath, ex.Message));
}
//继续下载其它文件
evtPerDonwload.Set();
}
private void ProcDownload()
{
evtPerDonwload = new ManualResetEvent(false);
foreach (DownloadFileInfo file in this.downloadFileList)
{
total += file.Size;
}
while (!evtDownload.WaitOne(0, false))
{
if (this.downloadFileList.Count == 0)
{
break;
}
DownloadFileInfo file = this.downloadFileList[0];
LogHelper.Debug(String.Format("Start Download:{0}", file.FileName));
//Debug.WriteLine(String.Format("Start Download:{0}", file.FileName));
this.ShowCurrentDownloadFileName(file.FileName);
//下载
clientDownload = new WebClient();
clientDownload.DownloadProgressChanged += new DownloadProgressChangedEventHandler(OnDownloadProgressChanged);
clientDownload.DownloadFileCompleted += new AsyncCompletedEventHandler(OnDownloadFileCompleted);
evtPerDonwload.Reset();
try
{
/*
* 断目录存在不，不存的则添加
* **/
string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, file.FileFullName);
if (!File.Exists(path))
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
}
clientDownload.DownloadFileAsync(new Uri(file.DownloadUrl), path + ".tmp", file);
}
catch (Exception ex)
{
LogHelper.Error(string.Format("DownloadFileFailed：DownloadUrl【{2}】,FileName【{0}】,error Msg【{1}】", file.FileFullName, ex.Message, file.DownloadUrl));
}
//等待下载完成
evtPerDonwload.WaitOne();
clientDownload.Dispose();
clientDownload = null;
//移除已下载的文件
this.downloadFileList.Remove(file);
}
LogHelper.Debug("All Downloaded");
//Debug.WriteLine("All Downloaded");
if (this.downloadFileList.Count == 0)
{
Exit(true);
}
else
{
Exit(false);
}
evtDownload.Set();
}
