public async Task AddMessageAsync <T>(T message, TimeSpan?timeToLive = null, TimeSpan?initialVisibilityDelay = null, QueueRequestOptions options = null, OperationContext operationContext = null, CancellationToken cancellationToken = default(CancellationToken))
{
var serializer = new Serializer();
var data = (byte[])null;
using (var stream = new MemoryStream())
{
serializer.Serialize(message, stream);
data = stream.ToArray();
}
// Check if the message exceeds the size allowed by Azure Storage queues
if (data.Length > MAX_MESSAGE_CONTENT_SIZE)
{
// The message is too large. Therefore we must save the content to blob storage and
// send a smaller message indicating where the actual message was saved
// 1) Save the large message to blob storage
var blobName = $"{DateTime.UtcNow.ToString("yyyy-MM-dd")}-{RandomGenerator.GenerateString(32)}";
var blob = _blobContainer.GetBlockBlobReference(blobName);
await blob.UploadBytesAsync(data, null, cancellationToken).ConfigureAwait(false);
// 2) Send a smaller message
var largeEnvelope = new LargeMessageEnvelope
{
BlobName = blobName
};
using (var stream = new MemoryStream())
{
serializer.Serialize(largeEnvelope, stream);
data = stream.ToArray();
}
/*
* Weird issue: the C# compiler throws "CS1503 Argument 1: cannot convert from 'byte[]' to 'string'" when initializing a new message with a byte array.
* The work around is to initialize with an empty string and subsequently invoke the 'SetMessageContent' method with the byte array
* var cloudMessage = new CloudQueueMessage(data);
*/
var cloudMessage = new CloudQueueMessage(string.Empty);
cloudMessage.SetMessageContent(data);
await _queue.AddMessageAsync(cloudMessage, timeToLive, initialVisibilityDelay, options, operationContext, cancellationToken).ConfigureAwait(false);
}
else
{
// The size of this message is within the range allowed by Azure Storage queues
/*
* Weird issue: the C# compiler throws "CS1503 Argument 1: cannot convert from 'byte[]' to 'string'" when initializing a new message with a byte array.
* The work around is to initialize with an empty string and subsequently invoke the 'SetMessageContent' method with the byte array
* var cloudMessage = new CloudQueueMessage(data);
*/
var cloudMessage = new CloudQueueMessage(string.Empty);
cloudMessage.SetMessageContent(data);
await _queue.AddMessageAsync(cloudMessage, timeToLive, initialVisibilityDelay, options, operationContext, cancellationToken).ConfigureAwait(false);
}
}
public async Task AddMessageAsync <T>(T message, TimeSpan?timeToLive = null, TimeSpan?initialVisibilityDelay = null, QueueRequestOptions options = null, OperationContext operationContext = null, CancellationToken cancellationToken = default(CancellationToken))
{
var data = Serialize(message);
// Check if the message exceeds the size allowed by Azure Storage queues
if (data.Length > MAX_MESSAGE_CONTENT_SIZE)
{
// The message is too large. Therefore we must save the content to blob storage and
// send a smaller message indicating where the actual message was saved
// 1) Save the large message to blob storage
var blobName = $"{DateTime.UtcNow.ToString("yyyy-MM-dd")}-{RandomGenerator.GenerateString(32)}";
var blob = _blobContainer.GetBlobReference(blobName);
await blob.UploadBytesAsync(data, null, cancellationToken).ConfigureAwait(false);
// 2) Send a smaller message
var largeEnvelope = new LargeMessageEnvelope
{
BlobName = blobName
};
data = Serialize(largeEnvelope);
/*
* There is a constructor that accepts an array of bytes in NETFULL but it is not available in NETSTANDARD.
* The work around is to initialize with an empty string and subsequently invoke the 'SetMessageContent' method with the byte array
*/
var cloudMessage = new CloudQueueMessage(string.Empty);
cloudMessage.SetMessageContent(data);
await _queue.AddMessageAsync(cloudMessage, timeToLive, initialVisibilityDelay, options, operationContext, cancellationToken).ConfigureAwait(false);
}
else
{
// The size of this message is within the range allowed by Azure Storage queues
/*
* There is a constructor that accepts an array of bytes in NETFULL but it is not available in NETSTANDARD.
* The work around is to initialize with an empty string and subsequently invoke the 'SetMessageContent' method with the byte array
*/
var cloudMessage = new CloudQueueMessage(string.Empty);
cloudMessage.SetMessageContent(data);
await _queue.AddMessageAsync(cloudMessage, timeToLive, initialVisibilityDelay, options, operationContext, cancellationToken).ConfigureAwait(false);
}
}
