public virtual GatewayResponse Send(string sessionData, IEnumerable <Message> messages)
{
if (messages.Count() == 0)
{
throw new ArgumentException("Message list must contain at least one message", "messages");
}
var result = new GatewayResponse();
var thisBatchSize = BatchSize > 0 ? BatchSize : messages.Count();
var skip = 0;
while (messages.Count() > skip)
{
var messageList = messages.Skip(skip).Take(thisBatchSize).ToList();
var transportResult = Transport.Send(BuildPayload(sessionData, messageList));
var batchResults = ParseTransportResults(messageList, transportResult);
result.Results = result.Results == null ? batchResults : result.Results.Union(batchResults);
skip += thisBatchSize;
}
return(result);
}