public System.Threading.Tasks.Task PublishAsync <TEvent>(string topic, TEvent domainEvent) where TEvent : class, IEvent
{
return(Task.Factory.StartNew(() =>
{
var topicBytes = MessageClient.TextToBytes(topic);
var content = MessageClient.ObjectToJsonString(domainEvent);
var contentBytes = MessageClient.TextToBytes(content);
var lenBytes = BitConverter.GetBytes(topicBytes.Length);
var body = new byte[topicBytes.Length + contentBytes.Length + 4];
Array.Copy(lenBytes, 0, body, 0, 4);
Array.Copy(topicBytes, 0, body, 4, topicBytes.Length);
Array.Copy(contentBytes, 0, body, 4 + topicBytes.Length, contentBytes.Length);
try
{
MessageClient.Current.SendBytes(new byte[] { 0x01, 0x00, 0x00, 0x02 }, body);
Task.Factory.StartNew(() =>
{
TryFailedItems();
});
}
catch (Exception) //只关心发送，数据转换失败必须由调用方处理
{
if (body != null && body.Length > 0)
{
SaveFailedItem(topic, body);
}
}
}));
}