public IEnumerable <IDataBatch> CreateBatches()
{
var context = new DataBatchBuildingContext(messageBuffer);
foreach ((var routingKey, var bufferSlice) in EnumerateAllBufferSlices())
{
foreach (var batch in HandleSlice(routingKey, bufferSlice, context))
{
yield return(batch);
}
}
if (!context.IsEmpty)
{
yield return(context.CreateBatch());
}
}
private IEnumerable <IDataBatch> HandleSlice(string routingKey, BufferSlice slice, DataBatchBuildingContext context)
{
if (context.CurrentMessageBuilder.TryAppend(routingKey, slice))
{
context.CurrentSlices.Add(slice);
yield break;
}
if (context.IsEmpty)
{
throw new Exception($"Bug! Somehow there's a buffer slice of size {slice.Length} that does not fit into max batch size {messageBuffer.Length} with overhead considered.");
}
yield return(context.CreateBatch());
context.Reset();
}