/// <summary>
/// Attempts to add an event to the batch, ensuring that the size
/// of the batch does not exceed its maximum.
/// </summary>
///
/// <param name="eventData">The event to attempt to add to the batch.</param>
///
/// <returns><c>true</c> if the event was added; otherwise, <c>false</c>.</returns>
///
public override bool TryAdd(EventData eventData)
{
Argument.AssertNotNull(eventData, nameof(eventData));
Argument.AssertNotDisposed(_disposed, nameof(EventDataBatch));
// Reserve space for producer-owned fields that correspond to special
// features, if enabled.
if ((ActiveFeatures & TransportProducerFeatures.IdempotentPublishing) != 0)
{
eventData.PendingPublishSequenceNumber = int.MaxValue;
eventData.PendingProducerGroupId = long.MaxValue;
eventData.PendingProducerOwnerLevel = short.MaxValue;
}
try
{
using var eventMessage = MessageConverter.CreateMessageFromEvent(eventData, Options.PartitionKey);
// Calculate the size for the event, based on the AMQP message size and accounting for a
// bit of reserved overhead size.
var size = _sizeBytes
+ eventMessage.SerializedMessageSize
+ (eventMessage.SerializedMessageSize <= MaximumBytesSmallMessage
? OverheadBytesSmallMessage
: OverheadBytesLargeMessage);
if (size > MaximumSizeInBytes)
{
return(false);
}
_sizeBytes = size;
BatchEvents.Add(eventData);
return(true);
}
finally
{
eventData.ClearPublishingState();
}
}
