private async Task <bool> ProcessPackage(UserInfo userInfo, string feedName, PackageName packageName, PackageState packageState, PackageState damagedPackageState, Func <IPackageStorageItem, Task <IPackageStorageItem> > tryWithPackageItemBefore, Func <IPackageStorageItem, ZipPackage, Task> tryWithPackage, Func <IPackageStorageItem, Task> tryWithPackageItemAfter)
{
var feed = storage.GetFeed(feedName);
var packageItem = feed.GetPackage(null, packageState, packageName);
var traceName = packageItem.ToString();
try
{
packageItem = await tryWithPackageItemBefore(packageItem);
if (packageItem == null)
{
throw new Exception(string.Format("Missing package {0}", traceName));
}
using (var packageStream = await packageItem.Get())
{
if (packageStream == null)
{
throw new Exception(string.Format("Missing package data {0}", traceName));
}
var package = new ZipPackage(packageStream);
await tryWithPackage(packageItem, package);
}
await tryWithPackageItemAfter(packageItem);
return(true);
}
catch (Exception e)
{
support.TrackException(e, new { packageName });
Trace.TraceError("Unexpected error while processing package {0}:\n{1}", traceName, e);
notifier.Damaged(userInfo, packageName).Wait();
if (packageItem != null)
{
packageItem.Move(damagedPackageState, packageName).Wait();
}
return(false);
}
}