private void OnReceivedMessage(object i_msg)
{
DateTime now = DateTime.Now;
// Create message so CRC is checked if needed
EventMessage msg = new EventMessage(i_msg as byte[]);
string sMsg = msg.ToString();
string sTime = now.ToLongTimeString() + ":" + now.Millisecond;
if (null != m_tracer)
{
m_tracer.Write(sTime + " " + sMsg);
ListViewItem item = new ListViewItem(sTime, sMsg);
item.SubItems.Add(msg.ToString());
m_listView.AddItem(item);
string sCrack = m_msgCracker.Decode(msg.EventCode.ToString(), msg.DataBytes);
if (sCrack.Length > 0)
{
ListViewItem item2 = new ListViewItem(sTime, sMsg);
item2.SubItems.Add(sCrack);
m_listView.AddItem(item2);
}
}
}
private static string Send(IntPtr hWnd, EventMessage message)
{
string data = message.ToString();
int len = Encoding.Default.GetBytes(data).Length;
COPYDATASTRUCT cds;
cds.dwData = (IntPtr)100;
cds.lpData = data;
cds.cbData = len + 1;
SendMessage(hWnd, WM_COPYDATA, 0, ref cds);
switch (message.Type)
{
case MessageType.GlobalFind:
case MessageType.GlobalOpen:
case MessageType.GlobalMQ:
case MessageType.GlobalIO:
using (var read = MMF_READER.CreateViewStream())
{
byte[] buffer = new byte[4];
read.Read(buffer, 0, buffer.Length);
var length = BitConverter.ToInt32(buffer, 0);
if (length <= 0)
{
return(string.Empty);
}
buffer = new byte[length];
read.Read(buffer, 0, buffer.Length);
return(Encoding.UTF8.GetString(buffer));
}
default:
return(string.Empty);
}
}
/// <summary>
/// 重发该消息
/// </summary>
/// <param name="topic"></param>
/// <param name="msgData"></param>
private void RetryPublish(String topic, EventMessage msgData, Exception ex)
{
if (retryTimes < MaxRetryTimes)
{
lock (syncObj)
{
retryTimes++;
XTrace.WriteLine($"发送消息：{msgData.ToString()} 失败，进行第 {retryTimes} 重试。");
Publish(topic, msgData);
}
}
else
{
PushRepublishMessage(topic, msgData);
producers.Remove(topic); // 移除该消息生产者，下次重新生成一个
throw ex;
}
}
public void it_should_parse_event_messages(string input, EventName eventName)
{
var parser = new Parser();
var rawInput = input.Replace("\r\n", "\n") + "\n\n";
foreach (char c in rawInput)
{
parser.Append(c);
}
Assert.True(parser.Completed);
var eventMessage = new EventMessage(parser.ExtractMessage());
Assert.NotNull(eventMessage);
Assert.Equal(eventName, eventMessage.EventName);
Console.WriteLine(eventMessage.ToString());
}
/// <summary>
/// 发送指定主题的消息
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="message">The MSG data.</param>
/// <param name="priority">The priority.</param>
/// <exception cref="System.Exception"></exception>
public void Publish(string topic, EventMessage message, MQPriority priority = MQPriority.Normal)
{
var producer = GetProducer(topic);
if (producer == null)
{
throw new Exception($"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;
}
}
