/// <summary>
/// 发布消息
/// </summary>
/// <param name="topic">消息主题</param>
/// <param name="message">消息体，注意所有发布的消息均须为EventMessage的子类，方便事件总线底层进行通讯处理。</param>
/// <param name="priority">消息优先级</param>
public void Publish(string topic, EventMessage message, MQPriority priority = MQPriority.Normal)
{
var publisher = GetTopic(topic);
if (publisher == null)
{
return;
}
// 发送消息
switch (message.Action)
{
// 发送短信
case "SMS":
SendSms(message, publisher);
break;
case "MAIL":
SendMail(message, publisher);
break;
default:
publisher.PublishMessage(message.ToJson()); // 默认情况下直接将消息发送出去
break;
}
}
/// <summary>
/// 发送消息
/// </summary>
/// <param name="topic"></param>
/// <param name="message"></param>
/// <param name="priority"></param>
public void Publish(string topic, EventMessage message, MQPriority priority = MQPriority.Normal)
{
try {
bus.Publish(message,
conf => conf.WithPriority((Byte)priority)
.WithTopic(topic));
}
catch (Exception ex) {
XTrace.WriteLine($"发送消息 {topic} - {message.ToJson()} 失败。");
XTrace.WriteException(ex);
throw ex;
}
}
/// <summary>
/// 发送指定主题的消息
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="message">The MSG data.</param>
/// <param name="priority">The priority.</param>
/// <exception cref="System.Exception"></exception>
public void Publish(string topic, EventMessage message, MQPriority priority = MQPriority.Normal)
{
var producer = GetProducer(topic);
if (producer == null)
{
throw new Exception($"不存在主题为 {topic} 的消息发布者。");
}
try
{
ITextMessage msg = producer.CreateTextMessage();
msg.Text = message.ToJson();
foreach (var kv in message.Data)
{
msg.Properties.SetString(kv.Key, kv.Value);
}
producer.Send(msg, MsgDeliveryMode.Persistent, (MsgPriority)priority, TimeSpan.MinValue); // 发送消息
retryTimes = 0; // 重置失败重试次数
}
catch (IOException ex) {
XTrace.WriteLine($"发布消息 {topic} 失败，消息内容：{message.ToString()}。");
XTrace.WriteException(ex);
Thread.Sleep(1000 * 60); // 延迟1分钟后再试
RetryPublish(topic, message, ex);
}
catch (ConnectionClosedException ex) {
XTrace.WriteException(ex);
Thread.Sleep(1000 * 10); // 延迟10秒钟再试
RetryPublish(topic, message, ex);
}
catch (Exception ex) {
XTrace.WriteException(ex);
PushRepublishMessage(topic, message);
producers.Remove(topic);
throw ex;
}
}
