protected override void ReadAll()
{
using (MessageQueue queue = GetQueue())
{
using (MessageEnumerator enumerator = queue.GetMessageEnumerator2())
{
enumerator.Reset();
// Gather all messages.
var messages = new EventMessages();
while (enumerator.MoveNext())
{
if (RemoveWhenReading)
{
GetEventMessages(messages, enumerator.RemoveCurrent());
}
else
{
GetEventMessages(messages, enumerator.Current);
}
}
// Pass all of them on.
HandleEventMessages(messages);
}
}
}
public string ReceiveMessages(string companyCode, string retailID, string terminalID)
{
//WILL REMOVE FROM QUEUE
string str_foldername = companyCode + "_" + retailID.PadLeft(3, '0') + "_" + terminalID.PadLeft(2, '0') + "_out";
string queueName = @".\private$\" + str_foldername;
string result = "Finished";
//Receiving Messages from MSMQ
MessageQueue messageQueue = new MessageQueue(queueName);
messageQueue.DefaultPropertiesToSend.Recoverable = true;
messageQueue.Formatter = new XmlMessageFormatter(new Type[] { typeof(string) });
//To keep a check that if no messages present in MSMQ,
//control should return back in 1 second.
TimeSpan timeout = new TimeSpan(5);
System.Messaging.Message message = null;
//Get all the messages present in the MSMQ and iterate through it.
MessageEnumerator enumerator = messageQueue.GetMessageEnumerator2();
int i = 0;
while (enumerator.MoveNext(timeout) && i < 100)
{
message = enumerator.RemoveCurrent(timeout);
if (message != null)
{
string str_backupfoldername = companyCode + "_" + retailID.PadLeft(3, '0') + "_" + terminalID.PadLeft(2, '0') + "_backup";
string path_backupqueue = @".\private$\" + str_backupfoldername;
createMsmqQueue(path_backupqueue);
MessageQueue myBackupQueue = new MessageQueue(path_backupqueue);
myBackupQueue.DefaultPropertiesToSend.Recoverable = true;
System.Messaging.Message myBackupMessage = new System.Messaging.Message();
string tablename;
XmlMessageFormatter formatter = new XmlMessageFormatter(new Type[] { typeof(string) });
message.Formatter = formatter;
string context = message.Body.ToString();
if (context != null && context.Length > 0)
{
myBackupMessage.Label = "Generate_Server_" + message.Label;
myBackupMessage.Body = message.Body;
myBackupQueue.Send(myBackupMessage);
}
}
enumerator.Reset();
i++;
}
return(result);
}
public void MQPoller()
{
bool msgsent;
while (true)
{
Thread.Sleep(ThePollingInterval);
try
{
#region traverse the messages in queue and transmit them !
qLock = new Object();
lock (qLock)
{
try
{
MessageQueue queue = new MessageQueue(@".\private$\shadow");
if (queue.CanRead) // can we read ?
{
MessageEnumerator me = queue.GetMessageEnumerator2();
me.Reset();
while (me.MoveNext()) // flush awayyy.....
{
System.Messaging.Message msg = queue.Receive();
msg.Formatter = new BinaryMessageFormatter();
// TRANSMIT
#region traverse clients hashtable and broadcast mq contents to all of them
foreach (int k in htSocketList.Keys)
{
//MessageBox.Show(msg.Body.ToString());
Thread.Sleep(100);
msgsent = SendBytesToClient(ccmd.BroadcastText(msg.Label + "|" + msg.Body, Convert.ToString(k)), ((ServerSocketPacket)htSocketList[k]).m_clientNumber, ((ServerSocketPacket)htSocketList[k]).m_clientId);
}
#endregion
}
}
queue.Close();
queue = null;
}
catch (Exception ex)
{
//MessageBox.Show("Error Transmitting:"+ex.Message);
}
}
qLock = null;
#endregion
}
catch (Exception ex)
{
//MessageBox.Show("Error Traversing clients:"+ex.Message);
}
}
}
public void Execute(IJobExecutionContext context)
{
try
{
var path = $"{jsonFolder}\\statis.json";
// 统计数据json读成对象，计算后再json写回源文件
List <UserBehaviorStatis> statis = JsonConvert.DeserializeObject <List <UserBehaviorStatis> >(File.ReadAllText(path, Encoding.UTF8));
// Get a cursor into the messages in the queue.
MessageEnumerator myEnumerator = mq.GetMessageEnumerator2();
// Specify that the messages's priority should be read.
mq.MessageReadPropertyFilter.Priority = true;
while (myEnumerator.MoveNext())
{
Message msg = myEnumerator.Current;
msg.Formatter = formatter;
string str = msg.Body.ToString();
File.AppendAllText($"{jsonFolder}\\mq.txt", str + "\r\n", Encoding.UTF8);
mqType type = (mqType)Enum.Parse(typeof(mqType), str.Substring(0, 1));
string body = str.Substring(2);
statis.Find(s => s.Type == type).Count++;
myEnumerator.RemoveCurrent();
myEnumerator.Reset();
}
File.WriteAllText(path, JsonConvert.SerializeObject(statis));
}
catch (Exception ex)
{
File.AppendAllText($"{jsonFolder}\\log.txt", ex.Message + "\r\n", Encoding.UTF8);
}
finally
{
File.AppendAllText($"{jsonFolder}\\log.txt", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "执行完毕\r\n", Encoding.UTF8);
}
}
private void PeekRead()
{
using (MessageQueue queue = GetQueue())
{
using (MessageEnumerator enumerator = queue.GetMessageEnumerator2())
{
// Initialise.
enumerator.Reset();
bool firstMessage = true;
bool current = false;
// When starting try to read all messages on the queue.
bool moreToRead = ReadMessages(queue, enumerator, ref firstMessage, ref current);
// Continue reading messages until Stop() is called.
var readHandles = new[] { StopEvent, PauseEvent };
var pauseHandles = new[] { StopEvent, ContinueEvent };
bool stopping = false;
while (!stopping)
{
int timeToWait = (moreToRead ? 0 : Constants.MessageComponents.Msmq.TimeToWaitForNewMessages);
switch (WaitHandle.WaitAny(readHandles, timeToWait, false))
{
case 0:
// Stopping, so exit the loop.
stopping = true;
break;
case 1:
// Paused, wait for it to start again.
switch (WaitHandle.WaitAny(pauseHandles))
{
case 0:
// Stopping, so exit the loop.
stopping = true;
break;
case 1:
// Continuing, read whatever messages may have been added.
moreToRead = ReadMessages(queue, enumerator, ref firstMessage, ref current);
break;
}
break;
case WaitHandle.WaitTimeout:
// Read the messages.
moreToRead = ReadMessages(queue, enumerator, ref firstMessage, ref current);
break;
}
}
}
}
}
public void Notify()
{
// TODO: 要增加判断，防止过分频繁地被调用
this.MessageConnection.CleanWebDataTable();
if (this.dp2library.DefaultQueue == "!api")
{
try
{
if (this.MessageConnection.ConnectState != Microsoft.AspNet.SignalR.Client.ConnectionState.Connected)
{
return;
}
MessageData[] messages = null;
string strError = "";
int nRet = this.MessageConnection.GetMsmqMessage(
out messages,
out strError);
if (nRet == -1)
{
this.WriteErrorLog("Instance.Notify() 中 GetMsmqMessage() 出错: " + strError);
return;
}
if (messages != null)
{
foreach (MessageData data in messages)
{
MessageRecord record = new MessageRecord();
record.groups = new string[1] {
"gn:_patronNotify"
}; // gn 表示 group name
record.data = (string)data.strBody;
record.format = "xml";
List <MessageRecord> records = new List <MessageRecord> {
record
};
DigitalPlatform.Message.SetMessageRequest param =
new DigitalPlatform.Message.SetMessageRequest("create",
"dontNotifyMe",
records);
SetMessageResult result = this.MessageConnection.SetMessageTaskAsync(param,
_cancel.Token).Result;
if (result.Value == -1)
{
this.WriteErrorLog("Instance.Notify() 中 SetMessageAsync() 出错: " + result.ErrorInfo);
return;
}
}
nRet = this.MessageConnection.RemoveMsmqMessage(
messages.Length,
out strError);
if (nRet == -1)
{
this.WriteErrorLog("Instance.Notify() 中 RemoveMsmqMessage() 出错: " + strError);
return;
}
}
this._notifyThread.Activate();
return;
}
catch (ThreadAbortException)
{
return;
}
catch (Exception ex)
{
this.WriteErrorLog("Instance.Notify() 出现异常1: " + ExceptionUtil.GetDebugText(ex));
}
}
// 如果第一次初始化 Queue 没有成功，这里再试探初始化
InitialQueue(false);
// 进行通知处理
if (_queue != null &&
this.MessageConnection.ConnectState == Microsoft.AspNet.SignalR.Client.ConnectionState.Connected)
{
try
{
ServerInfo._recordLocks.LockForWrite(this._queue.Path);
}
catch (ApplicationException)
{
// 超时了
return;
}
bool bSucceed = false;
try
{
MessageEnumerator iterator = _queue.GetMessageEnumerator2();
while (iterator.MoveNext())
{
Message message = iterator.Current;
MessageRecord record = new MessageRecord();
record.groups = new string[1] {
"gn:_patronNotify"
}; // gn 表示 group name
record.data = (string)message.Body;
record.format = "xml";
List <MessageRecord> records = new List <MessageRecord> {
record
};
int length = record.data.Length;
DigitalPlatform.Message.SetMessageRequest param =
new DigitalPlatform.Message.SetMessageRequest("create",
"dontNotifyMe",
records);
SetMessageResult result = this.MessageConnection.SetMessageTaskAsync(param,
_cancel.Token).Result;
if (result.Value == -1)
{
this.WriteErrorLog("Instance.Notify() 中 SetMessageAsync() 出错: " + result.ErrorInfo);
if (result.String == "_connectionNotFound")
{
Task.Run(() => TryResetConnection(/*result.String*/));
}
return;
}
// http://stackoverflow.com/questions/21864043/with-messageenumerator-removecurrent-how-do-i-know-if-i-am-at-end-of-queue
try
{
iterator.RemoveCurrent();
}
finally
{
iterator.Reset();
}
}
bSucceed = true;
}
catch (ThreadAbortException)
{
return;
}
catch (MessageQueueException ex)
{
// 记入错误日志
// Program.WriteWindowsLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
this.WriteErrorLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
// Thread.Sleep(5 * 1000); // 拖延 5 秒
}
catch (InvalidCastException ex)
{
// 记入错误日志
// Program.WriteWindowsLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
this.WriteErrorLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
// Thread.Sleep(5 * 1000); // 拖延 5 秒
}
catch (Exception ex)
{
// 记入错误日志
// Program.WriteWindowsLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
this.WriteErrorLog("Instance.Notify() 出现异常: " + ExceptionUtil.GetDebugText(ex));
// Thread.Sleep(5 * 1000); // 拖延 5 秒
}
finally
{
ServerInfo._recordLocks.UnlockForWrite(this._queue.Path);
// 只有当发送到 dp2mserver 成功的情况下才立即重新监控最新 MQ
// 否则就等下一轮 Worker() 来处理
if (bSucceed == true)
{
// _queue.BeginPeek(new TimeSpan(0, 1, 0), null, OnMessageAdded);
BeginPeek();
}
}
}
}