private async Task DoEnqueue(T item, TimeSpan?initialVisibilityDelay)
{
string serializedItem = _serializer.Serialize(item);
string blobname = $"{Guid.NewGuid()}.que";
try
{
using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(serializedItem)))
{
await _blobRepository.UploadAsync(blobname, stream);
}
}
catch (Exception ex)
{
throw new LargeMessageQueueException("Unable to upload blob to blob store. No item queued.", ex, blobname);
}
try
{
if (initialVisibilityDelay.HasValue)
{
await _referenceQueue.EnqueueAsync(new LargeMessageReference
{
BlobReference = blobname
}, initialVisibilityDelay.Value);
}
else
{
await _referenceQueue.EnqueueAsync(new LargeMessageReference
{
BlobReference = blobname
});
}
}
catch (Exception ex)
{
throw new LargeMessageQueueException("Error enqueuing item, blob may be orphaned", ex, blobname);
}
}
/// <summary>
/// Insert an item into the current queue. Calling this method is equivalent to calling
/// <see cref="IAsyncQueue{T}.EnqueueAsync(T, CancellationToken)"/> with a value of
/// <see cref="CancellationToken.None"/>.
/// </summary>
/// <typeparam name="T">The type of the queued items.</typeparam>
/// <param name="queue">The current <see cref="IAsyncQueue{T}"/> implementation.</param>
/// <param name="item">An object of the queued type.</param>
/// <returns>
/// A value indicating whether or not the enqueue operation was successful.
/// </returns>
public static Task <bool> EnqueueAsync <T>(this IAsyncQueue <T> queue, T item)
{
return(queue.EnqueueAsync(item, CancellationToken.None));
}
