public QueueListener(string inboundQueue, eMessageFetch fetchMethod, eMessageFormat messageFormat, Type customType)
{
if (inboundQueue.IndexOf("private$") < 0)
{
mobjInboundQueue = new MessageQueue(QUEUE_PREFIX + inboundQueue,QueueAccessMode.Receive);
}
else
{
mobjInboundQueue = new MessageQueue(inboundQueue, QueueAccessMode.Receive);
}
meFetchMethod = fetchMethod;
meMessageFormat = messageFormat;
mobjCustomType = customType;
}
private IMessageFormatter SetQueueFormatterAndProperties(MessageQueue activeQueue, eMessageFormat messageFormat, Type customType)
{
IMessageFormatter objFormatter = null;
MessagePropertyFilter objMessagePropertyFilter = new MessagePropertyFilter();
// Message Formatter
switch (messageFormat)
{
case eMessageFormat.XMLSerialize:
if (customType == null)
{
objFormatter = new XmlMessageFormatter();
}
else
{
objFormatter = new XmlMessageFormatter(new Type[] { customType });
}
break;
case eMessageFormat.ActiveXSerialize:
objFormatter = new ActiveXMessageFormatter();
break;
case eMessageFormat.BinarySerialize:
objFormatter = new BinaryMessageFormatter();
break;
}
// Messages in Private Queue
// Ensure these properties are received (CorrelationID defaults to False)
objMessagePropertyFilter.SetDefaults();
objMessagePropertyFilter.CorrelationId = true;
objMessagePropertyFilter.AppSpecific = true;
objMessagePropertyFilter.ArrivedTime = true;
activeQueue.MessageReadPropertyFilter = objMessagePropertyFilter;
// Message Formatter
activeQueue.Formatter = objFormatter;
return objFormatter;
}
public Message[] PeekMessages(MessageQueue activeQueue, bool blnDynamicConnection, eMessageFormat messageFormat, System.Type customType)
{
Message objMessage;
Message[] arrCurrentMessages = new Message[0];
Message[] arrCopyOfMessages = null;
MessagePropertyFilter objMessagePropertyFilter = new MessagePropertyFilter();
int intArrayIndex;
// Message Formatter
SetQueueFormatterAndProperties(activeQueue, messageFormat, customType);
// Dynamic Connection whilst gathering messages
if (blnDynamicConnection == true)
{
IEnumerator objMessageEnumerator = activeQueue.GetMessageEnumerator2();
intArrayIndex = 0;
while (objMessageEnumerator.MoveNext())
{
objMessage = (Message)objMessageEnumerator.Current;
if (intArrayIndex > 0)
{
arrCopyOfMessages = new Message[intArrayIndex];
arrCurrentMessages.CopyTo(arrCopyOfMessages, 0);
arrCurrentMessages = arrCopyOfMessages;
}
arrCurrentMessages[intArrayIndex] = objMessage;
intArrayIndex += 1;
}
}
else // Snapshot of messages currently in Queue
{
arrCurrentMessages = null;
try
{
arrCurrentMessages = activeQueue.GetAllMessages();
}
catch (System.Messaging.MessageQueueException excM)
{
throw excM;
}
}
return arrCurrentMessages;
}
