private async Task <FileStreamCreator> GetStreamInternalAsync(
string pathInPackage,
CancellationToken cancellationToken)
{
var packageId = _packageIdentity.Id;
var packageVersion = _packageIdentity.Version.ToNormalizedString();
var payload = new CopyFilesInPackageRequest(
_packageSourceRepository,
packageId,
packageVersion,
new[] { pathInPackage },
_tempDirectoryPath.Value);
var response = await _plugin.Connection.SendRequestAndReceiveResponseAsync <CopyFilesInPackageRequest, CopyFilesInPackageResponse>(
MessageMethod.CopyFilesInPackage,
payload,
CancellationToken.None);
if (response != null)
{
switch (response.ResponseCode)
{
case MessageResponseCode.Success:
return(new FileStreamCreator(response.CopiedFiles.Single()));
case MessageResponseCode.Error:
throw new PluginException(
string.Format(CultureInfo.CurrentCulture,
Strings.Plugin_FailedOperationForPackage,
_plugin.Name,
MessageMethod.CopyFilesInPackage,
packageId,
packageVersion));
case MessageResponseCode.NotFound:
// This class is only created if a success response code is received for a
// PrefetchPackageRequest, meaning that the plugin has already confirmed
// that the package exists.
default:
break;
}
}
return(null);
}
/// <summary>
/// Asynchronously copies specified files in the package to the destination location.
/// </summary>
/// <param name="destination">A directory path to copy files to.</param>
/// <param name="packageFiles">An enumerable of files in the package to copy.</param>
/// <param name="extractFile">A package file extraction delegate.</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="IEnumerable{String}" />.</returns>
/// <exception cref="ArgumentException">Thrown if <paramref name="destination" />
/// is either <c>null</c> or an empty string.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="packageFiles" />
/// is <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="logger" /> is <c>null</c>.</exception>
/// <exception cref="OperationCanceledException">Thrown if <paramref name="cancellationToken" />
/// is cancelled.</exception>
public override async Task <IEnumerable <string> > CopyFilesAsync(
string destination,
IEnumerable <string> packageFiles,
ExtractPackageFileDelegate extractFile,
ILogger logger,
CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(destination))
{
throw new ArgumentException(Strings.ArgumentCannotBeNullOrEmpty, nameof(destination));
}
if (packageFiles == null)
{
throw new ArgumentNullException(nameof(packageFiles));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
cancellationToken.ThrowIfCancellationRequested();
if (!packageFiles.Any())
{
return(Enumerable.Empty <string>());
}
var packageId = _packageIdentity.Id;
var packageVersion = _packageIdentity.Version.ToNormalizedString();
var request = new CopyFilesInPackageRequest(
_packageSourceRepository,
packageId,
packageVersion,
packageFiles,
destination);
var response = await _plugin.Connection.SendRequestAndReceiveResponseAsync <CopyFilesInPackageRequest, CopyFilesInPackageResponse>(
MessageMethod.CopyFilesInPackage,
request,
cancellationToken);
if (response != null)
{
switch (response.ResponseCode)
{
case MessageResponseCode.Success:
return(response.CopiedFiles);
case MessageResponseCode.Error:
throw new PluginException(
string.Format(CultureInfo.CurrentCulture,
Strings.Plugin_FailedOperationForPackage,
_plugin.Name,
MessageMethod.CopyFilesInPackage,
packageId,
packageVersion));
case MessageResponseCode.NotFound:
// This class is only created if a success response code is received for a
// PrefetchPackageRequest, meaning that the plugin has already confirmed
// that the package exists.
default:
break;
}
}
return(Enumerable.Empty <string>());
}