private string GetContainerNameByUploadType(DiscussionPostAttachmentType DocumentTypeToRemove)
{
string result = string.Empty;
switch (DocumentTypeToRemove)
{
case DiscussionPostAttachmentType.Template:
result = "templates";
break;
case DiscussionPostAttachmentType.Document:
result = "documents";
break;
case DiscussionPostAttachmentType.External:
result = "discourseexternaldocuments";
break;
case DiscussionPostAttachmentType.Form:
result = "templates";
break;
default:
break;
}
return(result);
}
public bool RemoveFile(TenantUserSession tenantUserSession, long id, DiscussionPostAttachmentType DocumentTypeToRemove, CancellationToken cancellationToken, out Exception exception)
{
var result = false;
exception = null;
try
{
if (id <= 0)
{
throw (new Exception("Unable to find the following request"));
}
string containerName = GetContainerNameByUploadType(DocumentTypeToRemove);
if (!string.IsNullOrEmpty(containerName))
{
var connectionString = tenantUserSession.Tenant.StorageConnectionStringPrimary;
var account = CloudStorageAccount.Parse(connectionString);
var client = account.CreateCloudBlobClient();
var container = client.GetContainerReference(containerName);
container.CreateIfNotExists();
container.SetPermissions(new BlobContainerPermissions {
PublicAccess = BlobContainerPublicAccessType.Off,
});
var Blob = container.GetBlockBlobReference(id.ToString() + "." + GlobalConstants.FileExtensionCloud);
var running = true;
var watch = System.Diagnostics.Stopwatch.StartNew();
var task = Blob.DeleteIfExistsAsync(cancellationToken);
do
{
switch (task.Status)
{
case TaskStatus.Canceled:
case TaskStatus.Faulted:
case TaskStatus.RanToCompletion:
{ running = false; break; }
}
Thread.Sleep(TimeSpan.FromSeconds(1));
cancellationToken.ThrowIfCancellationRequested();
}while (running);
switch (task.Status)
{
case TaskStatus.Faulted:
case TaskStatus.Canceled:
{
running = false;
throw (task.Exception ?? new Exception("The delete task encountered an unknown exception."));
}
}
result = true;
}
}
catch (Exception e)
{
exception = e;
}
return(result);
}
