/// <summary>
/// Initializes a new instance of the <see cref="NuGetClientFactory"/> class.
/// </summary>
/// <param name="httpClient">The client used for HTTP requests.</param>
/// <param name="serviceIndexUrl">
/// The NuGet Service Index resource URL.
///
/// For NuGet.org, use https://api.nuget.org/v3/index.json
/// </param>
public NuGetClientFactory(HttpClient httpClient, string serviceIndexUrl)
{
_httpClient = httpClient ?? throw new ArgumentNullException(nameof(httpClient));
_serviceIndexUrl = serviceIndexUrl ?? throw new ArgumentNullException(nameof(serviceIndexUrl));
_mutex = new SemaphoreSlim(1, 1);
_clients = null;
}
private async Task <T> GetAsync <T>(Func <NuGetClients, T> clientFactory, CancellationToken cancellationToken)
{
if (_clients == null)
{
await _mutex.WaitAsync(cancellationToken);
try
{
if (_clients == null)
{
var serviceIndexClient = new RawServiceIndexClient(_httpClient, _serviceIndexUrl);
var serviceIndex = await serviceIndexClient.GetAsync(cancellationToken);
var contentResourceUrl = serviceIndex.GetPackageContentResourceUrl();
var metadataResourceUrl = serviceIndex.GetPackageMetadataResourceUrl();
var catalogResourceUrl = serviceIndex.GetCatalogResourceUrl();
var searchResourceUrl = serviceIndex.GetSearchQueryResourceUrl();
var autocompleteResourceUrl = serviceIndex.GetSearchAutocompleteResourceUrl();
// Create clients for required resources.
var contentClient = new RawPackageContentClient(_httpClient, contentResourceUrl);
var metadataClient = new RawPackageMetadataClient(_httpClient, metadataResourceUrl);
var searchClient = new RawSearchClient(_httpClient, searchResourceUrl);
// Create clients for optional resources.
var catalogClient = catalogResourceUrl == null
? new NullCatalogClient() as ICatalogClient
: new RawCatalogClient(_httpClient, catalogResourceUrl);
var autocompleteClient = autocompleteResourceUrl == null
? new NullAutocompleteClient() as IAutocompleteClient
: new RawAutocompleteClient(_httpClient, autocompleteResourceUrl);
var publishClient = new RawPublishClient(_httpClient, serviceIndex);
_clients = new NuGetClients
{
ServiceIndex = serviceIndex,
PackageContentClient = contentClient,
PackageMetadataClient = metadataClient,
SearchClient = searchClient,
AutocompleteClient = autocompleteClient,
CatalogClient = catalogClient,
PublishClient = publishClient,
};
}
}
finally
{
_mutex.Release();
}
}
// TODO: This should periodically refresh the service index response.
return(clientFactory(_clients));
}
private async Task <T> GetClientAsync <T>(Func <NuGetClients, T> clientFactory, CancellationToken cancellationToken)
{
// TODO: This should periodically refresh the service index response.
if (_clients == null)
{
await _mutex.WaitAsync(cancellationToken);
try
{
if (_clients == null)
{
var serviceIndexClient = new ServiceIndexClient(_httpClient, _serviceIndexUrl);
var serviceIndex = await serviceIndexClient.GetAsync(cancellationToken);
var contentClient = new PackageContentClient(_httpClient, GetResourceUrl(serviceIndex, PackageBaseAddress));
var metadataClient = new PackageMetadataClient(_httpClient, GetResourceUrl(serviceIndex, RegistrationsBaseUrl));
var catalogClient = new CatalogClient(_httpClient, GetResourceUrl(serviceIndex, Catalog));
var searchClient = new SearchClient(
_httpClient,
GetResourceUrl(serviceIndex, SearchQueryService),
GetResourceUrl(serviceIndex, SearchAutocompleteService));
_clients = new NuGetClients
{
ServiceIndexClient = serviceIndexClient,
PackageContentClient = contentClient,
PackageMetadataClient = metadataClient,
SearchClient = searchClient,
CatalogClient = catalogClient,
};
}
}
finally
{
_mutex.Release();
}
}
return(clientFactory(_clients));
}