/// <summary>
/// Asynchronously gets a package downloader for a package identity.
/// </summary>
/// <param name="packageIdentity">A package identity.</param>
/// <param name="cacheContext">A source cache context.</param>
/// <param name="logger">A logger.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <returns>A task that represents the asynchronous operation.
/// The task result (<see cref="Task{TResult}.Result" />) returns an <see cref="IPackageDownloader" />.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="packageIdentity" /> <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="cacheContext" /> <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="logger" /> <c>null</c>.</exception>
/// <exception cref="OperationCanceledException">Thrown if <paramref name="cancellationToken" />
/// is cancelled.</exception>
public override Task <IPackageDownloader> GetPackageDownloaderAsync(
PackageIdentity packageIdentity,
SourceCacheContext cacheContext,
ILogger logger,
CancellationToken cancellationToken)
{
if (packageIdentity == null)
{
throw new ArgumentNullException(nameof(packageIdentity));
}
if (cacheContext == null)
{
throw new ArgumentNullException(nameof(cacheContext));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
cancellationToken.ThrowIfCancellationRequested();
var packageReader = new PluginPackageReader(_plugin, packageIdentity, _packageSource.Source);
var packageDependency = new PluginPackageDownloader(_plugin, packageIdentity, packageReader, _packageSource.Source);
return(Task.FromResult <IPackageDownloader>(packageDependency));
}
private PluginPackageDownloaderTest(
PackageIdentity packageIdentity,
Mock <IPlugin> plugin,
PluginPackageReader packageReader,
PluginPackageDownloader downloader)
{
PackageIdentity = packageIdentity;
Plugin = plugin;
PackageReader = packageReader;
Downloader = downloader;
}
internal static PluginPackageDownloaderTest Create()
{
var plugin = new Mock <IPlugin>(MockBehavior.Strict);
plugin.Setup(x => x.Dispose());
var packageReader = new PluginPackageReader(plugin.Object, _packageIdentity, _packageSourceRepository);
var downloader = new PluginPackageDownloader(
plugin.Object,
_packageIdentity,
packageReader,
_packageSourceRepository);
return(new PluginPackageDownloaderTest(
_packageIdentity,
plugin,
packageReader,
downloader));
}
/// <summary>
/// Asynchronously gets a package downloader for a package identity.
/// </summary>
/// <param name="packageIdentity">A package identity.</param>
/// <param name="cacheContext">A source cache context.</param>
/// <param name="logger">A logger.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <returns>A task that represents the asynchronous operation.
/// The task result (<see cref="Task{TResult}.Result" />) returns an <see cref="IPackageDownloader" />.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="packageIdentity" /> <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="cacheContext" /> <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="logger" /> <c>null</c>.</exception>
/// <exception cref="OperationCanceledException">Thrown if <paramref name="cancellationToken" />
/// is cancelled.</exception>
public override Task <IPackageDownloader> GetPackageDownloaderAsync(
PackageIdentity packageIdentity,
SourceCacheContext cacheContext,
ILogger logger,
CancellationToken cancellationToken)
{
if (packageIdentity == null)
{
throw new ArgumentNullException(nameof(packageIdentity));
}
if (cacheContext == null)
{
throw new ArgumentNullException(nameof(cacheContext));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
var stopwatch = Stopwatch.StartNew();
try
{
cancellationToken.ThrowIfCancellationRequested();
var packageReader = new PluginPackageReader(_plugin, packageIdentity, _packageSource.Source);
var packageDependency = new PluginPackageDownloader(_plugin, packageIdentity, packageReader, _packageSource.Source);
return(Task.FromResult <IPackageDownloader>(packageDependency));
}
finally
{
ProtocolDiagnostics.RaiseEvent(new ProtocolDiagnosticResourceEvent(
_packageSource.Source,
ResourceTypeName,
ThisTypeName,
nameof(GetPackageDownloaderAsync),
stopwatch.Elapsed));
}
}
