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Implement retries on package download in installer

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This commit is contained in:
Eric Reed 2013-03-14 11:19:13 -04:00
parent 178859e0bd
commit ce014b1f14
1 changed files with 29 additions and 12 deletions
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41
MediaBrowser.Installer/MainWindow.xaml.cs
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@ -4,6 +4,7 @@ using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Linq;
@ -336,23 +337,39 @@ namespace MediaBrowser.Installer
/// <returns>The fully qualified name of the downloaded package</returns>
protected async Task<string> DownloadPackage(PackageVersionInfo version)
{
var success = false;
var retryCount = 0;
var archiveFile = Path.Combine(PrepareTempLocation(), version.targetFilename);
try
{
var archiveFile = Path.Combine(PrepareTempLocation(), version.targetFilename);
while (!success && retryCount < 3)
{
// setup download progress and download the package
MainClient.DownloadProgressChanged += DownloadProgressChanged;
try
{
await MainClient.DownloadFileTaskAsync(version.sourceUrl, archiveFile);
}
catch (WebException e)
{
if (e.Status == WebExceptionStatus.RequestCanceled)
// setup download progress and download the package
MainClient.DownloadProgressChanged += DownloadProgressChanged;
try
{
return null;
await MainClient.DownloadFileTaskAsync(version.sourceUrl, archiveFile);
success = true;
}
catch (WebException e)
{
if (e.Status == WebExceptionStatus.RequestCanceled)
{
return null;
}
if (e.Status == WebExceptionStatus.Timeout || e.Status == WebExceptionStatus.ConnectFailure || e.Status == WebExceptionStatus.ProtocolError)
{
Thread.Sleep(500); //wait just a sec
PrepareTempLocation(); //clear this out
retryCount++;
}
else
{
throw;
}
}
throw;
}
return archiveFile;