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1 using System;
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2 using System.Messaging;
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3 using Common.Messages;
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4 using GalaSoft.MvvmLight.Messaging;
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5
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6 namespace Server.Listeners
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7 {
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8 public class MsmqListener : IListener
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9 {
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10 public bool IsListening { get; set; }
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11
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12 private readonly MessageQueue _mq;
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13
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14 public MsmqListener(string queueName)
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15 {
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16 _mq = MessageQueue.Exists(queueName)
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17 ? new MessageQueue(queueName)
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18 : MessageQueue.Create(queueName);
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19
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20 _mq.Formatter = new XmlMessageFormatter(new Type[] { typeof(string) });
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21 }
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22
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23 public void Start()
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24 {
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25 if (IsListening) return;
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26
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27 Messenger.Default.Send(new MsmqLogMessage() { Body = "Opening listener" });
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29
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28 IsListening = true;
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29 while (IsListening)
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30 {
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31 try
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32 {
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33 var message = _mq.Receive().Body;
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34 Messenger.Default.Send(new MsmqClientMessage());
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35 }
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36 catch (MessageQueueException mqe)
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37 {
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38 Messenger.Default.Send(new MsmqLogMessage() { Body = mqe.Message });
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39 }
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40 catch (Exception e)
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41 {
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42 Messenger.Default.Send(new MsmqLogMessage() { Body = e.Message });
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43 }
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44 }
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45 }
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46
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47 public void Stop()
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48 {
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49 if (!IsListening) return;
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50 _mq.Close();
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51 IsListening = false;
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52 Messenger.Default.Send(new MsmqLogMessage() { Body = "Listener closed." });
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53 }
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54 }
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55 }
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