private Task ListenToMq(string queueManagerName, string topicOrQueueString, bool isQueue, MessageReceivedHandler messageHandler, ConnectionStatusChangedHandler connectionStatusChangedHandler)
{
var openOptionsForGet = MQC.MQSO_CREATE | MQC.MQSO_FAIL_IF_QUIESCING | MQC.MQSO_MANAGED | MQC.MQSO_NON_DURABLE;
MQDestination inboundDestination = null;
var gmo = new MQGetMessageOptions();
gmo.Options |= MQC.MQGMO_NO_WAIT | MQC.MQGMO_FAIL_IF_QUIESCING;
try
{
var queueManager = new MQQueueManager(queueManagerName, _queueManagerProperties);
if (isQueue)
{
inboundDestination = queueManager.AccessQueue(topicOrQueueString, MQC.MQTOPIC_OPEN_AS_SUBSCRIPTION);
}
else
{
inboundDestination = queueManager.AccessTopic(topicOrQueueString, null, MQC.MQTOPIC_OPEN_AS_SUBSCRIPTION, openOptionsForGet);
}
connectionStatusChangedHandler(new ConnectionStatus(queueManagerName, topicOrQueueString, Status.Connected));
while (true)
{
try
{
var msg = new MQMessage();
inboundDestination.Get(msg, gmo);
messageHandler(msg);
}
catch (MQException mqException)
{
if (mqException.Reason == MQC.MQRC_NO_MSG_AVAILABLE)
{
Thread.Sleep(200);
}
else
{
throw;
}
}
}
}
catch (MQException mqException)
{
connectionStatusChangedHandler(new ConnectionStatus(queueManagerName, topicOrQueueString, Status.Disconnected));
}
return(Task.CompletedTask);
}
private static string GetMessageContent(this MQDestination mqQueue, MQMessage mqMsg, bool browse, bool isFirstMessage)
{
var mqGetMsgOpts = new MQGetMessageOptions
{
Options = GetMqGetOptions(browse, isFirstMessage)
};
mqQueue.Get(mqMsg, mqGetMsgOpts);
Logger.Info($"Message CCSID: {mqMsg.CharacterSet} ({MqEncoding} expected), Queue:{mqQueue.Name}");
var messageContent = new byte[0];
mqMsg.ReadFully(ref messageContent);
return(OutputEncoding.GetString(messageContent));
}
