private async Task LoadPackages()
{
if (IsLoading)
{
// prevent concurrent loading
return;
}
IsLoading = true;
ErrorMessage = null;
AllPackages.Clear();
_downloadCancelSource = new CancellationTokenSource();
try
{
IQueryable <IPackage> query = _repository.GetPackagesById(LatestPackageInfo.Id, ShowPrerelease);
query = query.OrderByDescending(p => p.Published);
IQueryable <PackageInfo> packageInfos = GetPackageInfos(query, _repository);
PackageInfo[] packageInfoList = await LoadData(packageInfos, _downloadCancelSource.Token);
var dataServiceRepository = _repository as DataServicePackageRepository;
if (dataServiceRepository != null)
{
foreach (PackageInfo entity in packageInfoList)
{
entity.DownloadUrl = dataServiceRepository.GetReadStreamUri(entity);
}
}
foreach (var p in packageInfoList)
{
p.ShowAll = true;
}
// now show packages
AllPackages.AddRange(packageInfoList);
HasFinishedLoading = true;
}
catch (OperationCanceledException)
{
}
catch (Exception exception)
{
ErrorMessage = exception.GetBaseException().Message;
}
finally
{
_downloadCancelSource = null;
IsLoading = false;
}
}
private async Task LoadPackages()
{
if (IsLoading)
{
// prevent concurrent loading
return;
}
IsLoading = true;
ErrorMessage = null;
AllPackages.Clear();
_downloadCancelSource = new CancellationTokenSource();
try
{
var versions = await _versionInfos();
var packageMetadataResource = await _repository.GetResourceAsync <PackageMetadataResource>(_downloadCancelSource.Token);
using (var sourceCacheContext = new SourceCacheContext())
{
var query = await packageMetadataResource.GetMetadataAsync(LatestPackageInfo.Id, ShowPrerelease, ShowPrerelease, sourceCacheContext, NullLogger.Instance, _downloadCancelSource.Token);
query = query.OrderByDescending(p => p.Identity.Version);
// now show packages
AllPackages.AddRange(query.Select(p => CreatePackageInfo(p, _feedType, versions)));
}
HasFinishedLoading = true;
}
catch (OperationCanceledException)
{
}
catch (Exception exception)
{
if (!(exception is FatalProtocolException) && !(exception is IOException) && !(exception is NullReferenceException) && !(exception is UnauthorizedAccessException))
{
DiagnosticsClient.TrackException(exception);
}
ErrorMessage = exception.GetBaseException().Message;
}
finally
{
_downloadCancelSource.Dispose();
_downloadCancelSource = null;
IsLoading = false;
}
}
private async Task LoadPackages()
{
if (IsLoading)
{
// prevent concurrent loading
return;
}
IsLoading = true;
ErrorMessage = null;
AllPackages.Clear();
_downloadCancelSource = new CancellationTokenSource();
try
{
IQueryable <IPackage> query = _repository.GetPackagesById(LatestPackageInfo.Id, ShowPrerelease);
query = query.OrderByDescending(p => p.Published);
IQueryable <PackageInfo> packageInfos = GetPackageInfos(query, _repository);
PackageInfo[] packageInfoList = null;
bool resourceNotFoundError = false;
try
{
packageInfoList = await LoadData(packageInfos, _downloadCancelSource.Token);
}
catch (DataServiceQueryException ex)
{
resourceNotFoundError = IsResourceNotFoundError(ex);
if (!resourceNotFoundError)
{
throw;
}
}
// for a 404 error, use the legacy way to find packages by id,
// which requires filtering pre-release packages after the fact
if (resourceNotFoundError)
{
query = ((DataServicePackageRepository)_repository).LegacyGetPackagesById(LatestPackageInfo.Id);
packageInfos = GetPackageInfos(query, _repository);
packageInfoList = await LoadData(packageInfos, _downloadCancelSource.Token);
if (!ShowPrerelease)
{
packageInfoList = Array.FindAll(packageInfoList, p => !p.IsPrerelease);
}
}
var dataServiceRepository = _repository as DataServicePackageRepository;
if (dataServiceRepository != null)
{
foreach (PackageInfo entity in packageInfoList)
{
entity.DownloadUrl = dataServiceRepository.GetReadStreamUri(entity);
}
}
foreach (var p in packageInfoList)
{
p.ShowAll = true;
}
// now show packages
AllPackages.AddRange(packageInfoList);
HasFinishedLoading = true;
}
catch (OperationCanceledException)
{
}
catch (Exception exception)
{
ErrorMessage = exception.GetBaseException().Message;
}
finally
{
_downloadCancelSource = null;
IsLoading = false;
}
}
