protected IEnumerable <string> SerializeMany(IEnumerable <T> messages, JsonSerializerOptions jsonOptions)
{
// Calculate Base-64 encoded text with padding
int getBase64Size(int byteCount) => ((4 * byteCount / 3) + 3) & ~3;
var messagesList = new List <string>();
var messagesListSize = 0;
int calculateByteSize(int totalSize, int toAdd) =>
// Calculate the total length this would be w/ "[]" and commas
getBase64Size(totalSize + toAdd + messagesList.Count + 2);
// Format the final array string, i.e. [{...},{...}]
string getArrayString()
{
if (messagesList.Count == 1)
{
return(CoreHelpers.Base64EncodeString(messagesList[0]));
}
return(CoreHelpers.Base64EncodeString(
string.Concat("[", string.Join(',', messagesList), "]")));
}
var serializedMessages = messages.Select(message =>
JsonSerializer.Serialize(message, jsonOptions));
foreach (var message in serializedMessages)
{
var messageSize = Encoding.UTF8.GetByteCount(message);
if (calculateByteSize(messagesListSize, messageSize) > _queueClient.MessageMaxBytes)
{
yield return(getArrayString());
messagesListSize = 0;
messagesList.Clear();
}
messagesList.Add(message);
messagesListSize += messageSize;
}
if (messagesList.Any())
{
yield return(getArrayString());
}
}
public async Task CreateAsync(T message)
{
var json = JsonConvert.SerializeObject(message, _jsonSettings);
var base64 = CoreHelpers.Base64EncodeString(json);
await _queueClient.SendMessageAsync(base64);
}
