public async System.Threading.Tasks.Task <SoftmakeAll.SDK.OperationResult <System.Byte[]> > DownloadAsync(System.String ContainerName, System.Collections.Generic.Dictionary <System.String, System.String> StorageFileNames)
{
SoftmakeAll.SDK.CloudStorage.Azure.Environment.Validate();
SoftmakeAll.SDK.OperationResult <System.Byte[]> OperationResult = new SoftmakeAll.SDK.OperationResult <System.Byte[]>();
if ((System.String.IsNullOrWhiteSpace(ContainerName)) || (StorageFileNames == null) || (StorageFileNames.Count == 0))
{
OperationResult.Message = "The ContainerName and StorageFileName cannot be null.";
return(OperationResult);
}
try
{
global::Azure.Storage.Blobs.BlobContainerClient BlobContainerClient = new global::Azure.Storage.Blobs.BlobContainerClient(SoftmakeAll.SDK.CloudStorage.Azure.Environment._ConnectionString, ContainerName);
if (StorageFileNames.Count == 1)
{
global::Azure.Storage.Blobs.BlobClient BlobClient = BlobContainerClient.GetBlobClient(StorageFileNames.First().Key);
if (!(await BlobClient.ExistsAsync()))
{
OperationResult.Message = "The file could not be found.";
return(OperationResult);
}
using (System.IO.MemoryStream MemoryStream = new System.IO.MemoryStream())
{
await BlobClient.DownloadToAsync(MemoryStream);
OperationResult.Data = MemoryStream.ToArray();
}
}
else
{
using (System.Threading.SemaphoreSlim SemaphoreSlim = new System.Threading.SemaphoreSlim(StorageFileNames.Count))
{
System.Collections.Generic.List <System.Threading.Tasks.Task> DownloadTasks = new System.Collections.Generic.List <System.Threading.Tasks.Task>();
foreach (System.Collections.Generic.KeyValuePair <System.String, System.String> StorageFileName in StorageFileNames)
{
global::Azure.Storage.Blobs.BlobClient BlobClient = BlobContainerClient.GetBlobClient(StorageFileName.Key);
if (!(await BlobClient.ExistsAsync()))
{
continue;
}
await SemaphoreSlim.WaitAsync();
DownloadTasks.Add(System.Threading.Tasks.Task.Run(async() => { await BlobClient.DownloadToAsync(StorageFileName.Key); SemaphoreSlim.Release(); }));
}
if (DownloadTasks.Any())
{
await System.Threading.Tasks.Task.WhenAll(DownloadTasks);
}
}
OperationResult.Data = SoftmakeAll.SDK.Files.Compression.CreateZipArchive(StorageFileNames);
foreach (System.Collections.Generic.KeyValuePair <System.String, System.String> StorageFileName in StorageFileNames)
{
if (System.IO.File.Exists(StorageFileName.Key))
{
try { System.IO.File.Delete(StorageFileName.Key); } catch { }
}
}
}
}
catch (System.Exception ex)
{
if (StorageFileNames.Count > 0)
{
foreach (System.Collections.Generic.KeyValuePair <System.String, System.String> StorageFileName in StorageFileNames)
{
if (System.IO.File.Exists(StorageFileName.Key))
{
try { System.IO.File.Delete(StorageFileName.Key); } catch { }
}
}
}
OperationResult.Message = ex.Message;
return(OperationResult);
}
OperationResult.ExitCode = 0;
return(OperationResult);
}
