async Task <IEnumerable <IPackageSearchMetadata> > GetPackagesWithUpdatesAsync(string searchText, SearchFilter searchFilter, CancellationToken cancellationToken)
{
if (_context != null)
{
_installedPackages = await _context.GetInstalledPackagesAsync();
_context = null;
}
var packages = _installedPackages
.GetEarliest()
.Where(p => p.Id.IndexOf(searchText, StringComparison.OrdinalIgnoreCase) != -1)
.OrderBy(p => p.Id);
var latestItems = await TaskCombinators.ThrottledAsync(
packages,
(p, t) => _metadataProvider.GetLatestPackageMetadataAsync(p, searchFilter.IncludePrerelease, t),
cancellationToken);
var packagesWithUpdates = packages
.Join(latestItems.Where(i => i != null),
p => p.Id,
m => m.Identity.Id,
(p, m) => new { cv = p.Version, m = m },
StringComparer.OrdinalIgnoreCase)
.Where(j => VersionComparer.VersionRelease.Compare(j.cv, j.m.Identity.Version) < 0)
.Select(j => j.m);
return(packagesWithUpdates);
}
public override async Task <SearchResult <IPackageSearchMetadata> > ContinueSearchAsync(ContinuationToken continuationToken, CancellationToken cancellationToken)
{
var searchToken = continuationToken as FeedSearchContinuationToken;
if (searchToken == null)
{
throw new InvalidOperationException("Invalid token");
}
if (_context != null)
{
_installedPackages = await _context.GetInstalledPackagesAsync();
_context = null;
}
var packages = _installedPackages
.GetLatest()
.Where(p => p.Id.IndexOf(searchToken.SearchString, StringComparison.OrdinalIgnoreCase) != -1)
.OrderBy(p => p.Id)
.Skip(searchToken.StartIndex)
.Take(PageSize + 1)
.ToArray();
var hasMoreItems = packages.Length > PageSize;
if (hasMoreItems)
{
packages = packages.Take(packages.Length - 1).ToArray();
}
var items = await TaskCombinators.ThrottledAsync(
packages,
(p, t) => GetPackageMetadataAsync (p, searchToken.SearchFilter.IncludePrerelease, t),
cancellationToken);
// The packages were originally sorted which is important because we Skip and Take based on that sort
// however the asynchronous execution has randomly reordered the set. So we need to resort.
var result = SearchResult.FromItems(items.OrderBy(p => p.Identity.Id).ToArray());
var loadingStatus = hasMoreItems
? LoadingStatus.Ready
: packages.Length == 0
? LoadingStatus.NoItemsFound
: LoadingStatus.NoMoreItems;
result.SourceSearchStatus = new Dictionary <string, LoadingStatus> {
{ "Installed", loadingStatus }
};
if (hasMoreItems)
{
result.NextToken = new FeedSearchContinuationToken {
SearchString = searchToken.SearchString,
SearchFilter = searchToken.SearchFilter,
StartIndex = searchToken.StartIndex + packages.Length
};
}
return(result);
}
public override async Task <SearchResult <IPackageSearchMetadata> > ContinueSearchAsync(ContinuationToken continuationToken, CancellationToken cancellationToken)
{
var searchToken = continuationToken as FeedSearchContinuationToken;
if (searchToken == null)
{
throw new InvalidOperationException("Invalid token");
}
if (_context != null)
{
_installedPackages = await _context.GetInstalledPackagesAsync();
_context = null;
}
var packagesNeedingConsolidation = _installedPackages
.GroupById()
.Where(g => g.Count() > 1)
.Select(g => new PackageIdentity(g.Key, g.Max()))
.ToArray();
var packages = packagesNeedingConsolidation
.Where(p => p.Id.IndexOf(searchToken.SearchString, StringComparison.OrdinalIgnoreCase) != -1)
.OrderBy(p => p.Id)
.Skip(searchToken.StartIndex)
.Take(PageSize + 1)
.ToArray();
var hasMoreItems = packages.Length > PageSize;
if (hasMoreItems)
{
packages = packages.Take(packages.Length - 1).ToArray();
}
var items = await TaskCombinators.ThrottledAsync(
packages,
(p, t) => _metadataProvider.GetPackageMetadataAsync(p, searchToken.SearchFilter.IncludePrerelease, t),
cancellationToken);
var result = SearchResult.FromItems(items.ToArray());
var loadingStatus = hasMoreItems
? LoadingStatus.Ready
: packages.Length == 0
? LoadingStatus.NoItemsFound
: LoadingStatus.NoMoreItems;
result.SourceSearchStatus = new Dictionary <string, LoadingStatus> {
{ "Consolidate", loadingStatus }
};
if (hasMoreItems)
{
result.NextToken = new FeedSearchContinuationToken {
SearchString = searchToken.SearchString,
SearchFilter = searchToken.SearchFilter,
StartIndex = searchToken.StartIndex + packages.Length
};
}
return(result);
}