/// <summary>
/// Instantiates the Queue Manager
/// </summary>
/// <param name="mqManager">The Queue Manager controlling the Request and Response Queues</param>
public MQAdapter(string mqManager, string channel, string ipAddress,
string putQueue, string getQueue, int timeout, int charSet, int port)
{
try
{
MQEnvironment.Hostname = ipAddress;
MQEnvironment.Channel = channel;
MQEnvironment.Port = 1000;
mqQueueManagerName = mqManager;
mqRequestQueueName = putQueue;
mqResponseQueueName = getQueue;
characterSet = charSet;
pollingTimeout = timeout;
// Connect to an MQ Manager, and share the connection handle with other threads
mqQueueManager = new MQQueueManager(mqManager, channel, ipAddress);
// Open Queue for Inquiry, Put Message in, and fail if Queue Manager is stopping
mqPutQueue = mqQueueManager.AccessQueue(putQueue, MQC.MQOO_INQUIRE |
MQC.MQOO_OUTPUT | MQC.MQOO_FAIL_IF_QUIESCING | MQC.MQOO_SET_IDENTITY_CONTEXT);
mqGetQueue = mqQueueManager.AccessQueue(getQueue,
MQC.MQOO_INPUT_AS_Q_DEF + MQC.MQOO_FAIL_IF_QUIESCING);
}
catch (MQException mqe)
{
throw new MQAdapterException("Error Code: " +
MQAdapterErrorReasons.GetMQFailureReasonErrorCode(mqe.Reason));
}
}
/// <summary>
/// Puts a message in an MQ Queue using the user Id provided
/// <param name="message">The message to be put in the queue</param>
/// <returns>Response message</returns>
/// </summary>
public string PushMQRequestMessage(string message)
{
try
{
MQMessage requestMessage = new MQMessage();
requestMessage.Persistence = 0;
requestMessage.ReplyToQueueName = mqResponseQueueName;
requestMessage.ReplyToQueueManagerName = mqQueueManagerName;
requestMessage.Format = MQC.MQFMT_STRING;
requestMessage.CharacterSet = characterSet;
requestMessage.MessageType = MQC.MQMT_REQUEST;
requestMessage.MessageId = HexaDecimalUtility.ConvertToBinary(GenerateMQMsgId());
requestMessage.CorrelationId = requestMessage.MessageId;
MQPutMessageOptions pmo = new MQPutMessageOptions();
pmo.Options = MQC.MQPMO_SET_IDENTITY_CONTEXT;
requestMessage.WriteString(message);
mqPutQueue.Put(requestMessage, pmo);
string _msgId = BinaryUtility.ConvertToHexaDecimal(requestMessage.MessageId);
return(_msgId);
}
catch (MQException mqe)
{
// Close request Queue if still opened
if (mqPutQueue.OpenStatus)
{
mqPutQueue.Close();
}
// Close Queue manager if still opened
if (mqQueueManager.OpenStatus)
{
mqQueueManager.Close();
}
throw new MQAdapterException("Error Code: " +
MQAdapterErrorReasons.GetMQFailureReasonErrorCode(mqe.Reason));
}
}
/// <summary>
/// Get a message from an MQ Queue using a correlation id
/// </summary>
/// <param name="correlationId">correlation id</param>
/// <returns>Response message</returns>
public string GetMQResponseMessage(string correlationId)
{
MQMessage rsMsg = new MQMessage();
rsMsg.CorrelationId = HexaDecimalUtility.ConvertToBinary(correlationId);
MQGetMessageOptions gmo = new MQGetMessageOptions();
gmo.Options = MQC.MQGMO_WAIT;
gmo.MatchOptions = MQC.MQMO_MATCH_CORREL_ID;
gmo.WaitInterval = pollingTimeout;
try
{
mqGetQueue.Get(rsMsg, gmo);
return(rsMsg.ReadString(rsMsg.DataLength));
}
catch (MQException mqe)
{
// Close Reponse Queue if still opened
if (mqGetQueue.OpenStatus)
{
mqGetQueue.Close();
}
// Close Queue manager if still opened
if (mqQueueManager.OpenStatus)
{
mqQueueManager.Close();
}
// Check if it a timeout exception
if (MQAdapterErrorReasons.GetMQFailureReasonErrorCode(mqe.Reason) == "MQRC_NO_MSG_AVAILABLE")
{
throw new MQAdapterTimeoutException("Message with correlation Id " + correlationId + " Timed out");
}
// MQ Exception
throw new MQAdapterException("Error Code: " +
MQAdapterErrorReasons.GetMQFailureReasonErrorCode(mqe.Reason));
}
}