/// <summary>
/// Opens a file.
/// </summary>
/// <param name="uri">
/// The uri of the file.
/// </param>
/// <param name="mode">
/// The file mode.
/// </param>
/// <returns>
/// The stream containing the data of the file.
/// </returns>
public Task <Stream> OpenStreamAsync(string uri, UriResolveMode mode)
{
if (this.ParentContext.UriResolver == null)
{
throw new InvalidOperationException($"No URI resolver registered, cannot open '{uri}'.");
}
return(this.ParentContext.UriResolver.ResolveToStream(Path.IsPathRooted(uri) ? uri : Path.Combine(Path.GetDirectoryName(this.Filename), uri), mode));
}
/// <summary> /// Resolves an uri to a stream. /// </summary> /// <param name="uri">The uri to resolve.</param> /// <param name="mode">The mode to use when resolving the uri.</param> /// <returns>A Task returning a stream.</returns> public Task <Stream> ResolveToStream(string uri, UriResolveMode mode) => this.resolveToStream(uri, mode);
/// <summary>
/// Opens the stream.
/// </summary>
/// <param name="context">
/// The context.
/// </param>
/// <param name="mode">
/// The mode.
/// </param>
/// <param name="fileUri">
/// The file uri.
/// </param>
/// <returns>
/// The <see cref="System.Threading.Tasks.Task"/>.
/// </returns>
protected override async Task <Stream> OpenStreamAsync(IExecutionContext context, UriResolveMode mode, string fileUri)
{
var blobClient = CloudStorageAccount.Parse(this.connectionString ?? context.GetDefault("CONNECTIONSTRING", this).ToString()).CreateCloudBlobClient();
var reference = blobClient.GetContainerReference(this.Uri.Split(new[] { "/" }, StringSplitOptions.RemoveEmptyEntries).First());
var parts = this.Uri.Split(new[] { "/" }, StringSplitOptions.RemoveEmptyEntries).Skip(1).ToArray();
var block = reference.GetBlockBlobReference(string.Join("/", parts));
return(mode == UriResolveMode.Read ? await block.OpenReadAsync() : await block.OpenWriteAsync());
}
/// <summary>
/// Opens a file.
/// </summary>
/// <param name="uri">
/// The uri of the file.
/// </param>
/// <param name="uriResolveMode">
/// The file mode.
/// </param>
/// <returns>
/// The stream containing the data of the file.
/// </returns>
Task <Stream> IExecutionContext.OpenStreamAsync(string uri, UriResolveMode uriResolveMode)
{
return(this.context.OpenStreamAsync(uri, uriResolveMode));
}
/// <summary>
/// Opens the stream.
/// </summary>
/// <param name="context">
/// The execution context.
/// </param>
/// <param name="uriResolveMode">
/// The file Mode.
/// </param>
/// <param name="fileUri">
/// The uri.
/// </param>
/// <returns>
/// The <see cref="Task"/>.
/// </returns>
protected virtual Task <Stream> OpenStreamAsync([NotNull] IExecutionContext context, UriResolveMode uriResolveMode, string fileUri)
{
return(context.OpenStreamAsync(fileUri, uriResolveMode));
}
