/// <summary>
/// Returns a <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new <see cref="IAsset"/> with the file in <paramref name="sourceBlob"/>.
/// </summary>
/// <param name="assets">The <see cref="AssetBaseCollection"/> instance.</param>
/// <param name="sourceBlob">The <see cref="Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob"/> instance that contains the file to copy.</param>
/// <param name="storageCredentials">The <see cref="Microsoft.WindowsAzure.Storage.Auth.StorageCredentials"/> instance for the new asset to create.</param>
/// <param name="options">The <see cref="AssetCreationOptions"/>.</param>
/// <param name="cancellationToken">The <see cref="System.Threading.CancellationToken"/> instance used for cancellation.</param>
/// <returns>A <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new <see cref="IAsset"/> with the file in <paramref name="sourceBlob"/>.</returns>
public static async Task <IAsset> CreateFromBlobAsync(this AssetBaseCollection assets, CloudBlockBlob sourceBlob, StorageCredentials storageCredentials, AssetCreationOptions options, CancellationToken cancellationToken)
{
if (assets == null)
{
throw new ArgumentNullException("assets", "The assets collection cannot be null.");
}
if (sourceBlob == null)
{
throw new ArgumentNullException("sourceBlob", "The source blob cannot be null.");
}
if (storageCredentials == null)
{
throw new ArgumentNullException("storageCredentials", "The destination storage credentials cannot be null.");
}
if (storageCredentials.IsAnonymous || storageCredentials.IsSAS)
{
throw new ArgumentException("The destination storage credentials must contain the account key credentials.", "destinationStorageCredentials");
}
MediaContextBase context = assets.MediaContext;
IAsset asset = await assets.CreateAsync(sourceBlob.Name, storageCredentials.AccountName, options, cancellationToken).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
IRetryPolicy retryPolicy = context.MediaServicesClassFactory.GetBlobStorageClientRetryPolicy().AsAzureStorageClientRetryPolicy();
BlobRequestOptions blobOptions = new BlobRequestOptions {
RetryPolicy = retryPolicy
};
CloudBlobContainer container = new CloudBlobContainer(asset.Uri, storageCredentials);
CloudBlockBlob blob = container.GetBlockBlobReference(sourceBlob.Name);
await CopyBlobHelpers.CopyBlobAsync(sourceBlob, blob, blobOptions, cancellationToken).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
IAssetFile assetFile = await asset.AssetFiles.CreateAsync(sourceBlob.Name, cancellationToken).ConfigureAwait(false);
assetFile.IsPrimary = true;
if (sourceBlob.Properties != null)
{
assetFile.ContentFileSize = sourceBlob.Properties.Length;
assetFile.MimeType = sourceBlob.Properties.ContentType;
}
await assetFile.UpdateAsync().ConfigureAwait(false);
return(asset);
}
/// <summary>
/// Returns a <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new empty <see cref="IAsset"/> asset within one selected storage account from <paramref name="storageAccountNames"/> based on the default <see cref="IAccountSelectionStrategy"/>.
/// </summary>
/// <param name="assets">The <see cref="AssetBaseCollection"/> instance.</param>
/// <param name="assetName">The asset name.</param>
/// <param name="strategy">The <see cref="IAccountSelectionStrategy"/> used to select a storage account for the new asset.</param>
/// <param name="options">The <see cref="AssetCreationOptions"/>.</param>
/// <param name="token">The <see cref="System.Threading.CancellationToken"/> instance used for cancellation.</param>
/// <returns>A <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new empty <see cref="IAsset"/> within one selected storage account from the given <see cref="IAccountSelectionStrategy"/>.</returns>
public static Task <IAsset> CreateAsync(this AssetBaseCollection assets, string assetName, IAccountSelectionStrategy strategy, AssetCreationOptions options, CancellationToken token)
{
if (assets == null)
{
throw new ArgumentNullException("assets");
}
if (strategy == null)
{
throw new ArgumentNullException("strategy");
}
string storageAccountName = strategy.SelectAccountForAsset();
return(assets.CreateAsync(assetName, storageAccountName, options, token));
}
/// <summary>
/// Returns a <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new <see cref="IAsset"/> with the file in <paramref name="filePath"/>.
/// </summary>
/// <param name="assets">The <see cref="AssetBaseCollection"/> instance.</param>
/// <param name="filePath">The path to the file to upload to the new <see cref="IAsset"/>.</param>
/// <param name="storageAccountName">The name of the storage account where to store the new <see cref="IAsset"/>.</param>
/// <param name="options">The <see cref="AssetCreationOptions"/>.</param>
/// <param name="uploadProgressChangedCallback">A callback to report the upload progress of the file.</param>
/// <param name="cancellationToken">The <see cref="System.Threading.CancellationToken"/> instance used for cancellation.</param>
/// <returns>A <see cref="System.Threading.Tasks.Task<IAsset>"/> instance for a new <see cref="IAsset"/> with the file in <paramref name="filePath"/>.</returns>
public static async Task <IAsset> CreateFromFileAsync(this AssetBaseCollection assets, string filePath, string storageAccountName, AssetCreationOptions options, Action <IAssetFile, UploadProgressChangedEventArgs> uploadProgressChangedCallback, CancellationToken cancellationToken)
{
if (assets == null)
{
throw new ArgumentNullException("assets", "The assets collection cannot be null.");
}
MediaContextBase context = assets.MediaContext;
string assetName = Path.GetFileName(filePath);
if (string.IsNullOrWhiteSpace(storageAccountName))
{
storageAccountName = context.DefaultStorageAccount.Name;
}
IAsset asset = await assets.CreateAsync(assetName, storageAccountName, options, cancellationToken).ConfigureAwait(false);
ILocator sasLocator = await context.Locators.CreateAsync(LocatorType.Sas, asset, AccessPermissions.Write | AccessPermissions.List, DefaultAccessPolicyDuration).ConfigureAwait(false);
EventHandler <UploadProgressChangedEventArgs> uploadProgressChangedHandler =
(s, e) =>
{
IAssetFile assetFile = (IAssetFile)s;
UploadProgressChangedEventArgs eventArgs = e;
if (uploadProgressChangedCallback != null)
{
uploadProgressChangedCallback(assetFile, eventArgs);
}
};
await asset.CreateAssetFileFromLocalFileAsync(filePath, sasLocator, uploadProgressChangedHandler, cancellationToken).ConfigureAwait(false);
await sasLocator.DeleteAsync().ConfigureAwait(false);
return(asset);
}
