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MQSCorrelationSetOrchestrationWithSolicitResponse (BizTalk Server Sample)

  • Artikkeli

The MQSCorrelationSetOrchestrationWithSolicitResponse sample demonstrates how to use a correlation identifier produced by the MQSeries Server instead of by BizTalk Server.

What This Sample Does

The orchestration sends a message with an empty value for the MQMD_MsgID property in the message header. MQSeries generates the MessageID and CorrelationID and returns a message with a value assigned to MQMD_MsgID and MQMD_CorrelId as part of the response in the solicit-response send port of the adapter. The orchestration uses the generated correlation identifier to initialize the correlation set and follows the correlation set in a subsequent receive location by checking the MQMD_CorrelId property of the message. The adapter also assigns the correlation identifier to BizTalk_CorrelationID, which you could also use in an orchestration. For more information about using correlation identifiers with the adapter, see Correlating Messages Using Request-Reply.

Important

Orchestrations using this technique may experience problems if the message from the MQSeries Server arrives before the correlation identifier. Make sure that you design your orchestrations to allow enough time for the MQSeries Server to return the correlation identifier. This example does not consider this possible race condition.

Where to Find This Sample

<Samples Path>\AdaptersUsage\MQSeriesAdapter\MQSCorrelationSetOrchestrationWithSolicitResponse

The following table shows the files in this sample and describes their purpose.

File Description
MQSCorrelationSolicitResponse.btproj,

MQSCorrelationSolicitResponse.sln		 Project and solution files for the application.
MQSCorrelationSolicitResponse.odx The BizTalk orchestration file for the application.
MQSCorrelationSolicitResponse.snk The strong naming key file.
Setup.bat Builds and initializes this sample.

How to Use This Sample

To create the application, you must complete the following steps:

  • Create two MQSeries queues.

  • Set up a BizTalk Server receive location and send port.

  • Enable the receive location.

  • Start the send port.

  • Create the appropriate folders.

  • Modify the orchestration.

  • Deploy, bind and start the orchestration.

    If you have the required permissions to the MQSeries Server for Windows installation, you can create the MQSeries queue through the adapter dialog boxes, and can skip the next procedure. If you do not have such access, you can create the queue using the IBM WebSphere MQ Explorer. To create the queues through the WebSphere MQ Explorer, complete the following steps.

Creating the MQSeries Queues Through the WebSphere MQ Explorer

To create the MQSeries queues through the WebSphere MQ Explorer

  1. Click Start, point to All Programs, point to IBM WebSphere MQ, and then click WebSphere MQ Explorer.

  2. Double-click Queue Managers, and then double-click the default queue manager. The default queue manager is typically named QM_<machine_name> where machine_name is the name of your computer.

  3. Right-click Queues, point to New, and then click Local Queue.

  4. In Create Local Queue dialog box, in Queue Name, type "REPLYTOQ", and then click OK.

  5. Right-click Queues, click New, and then click Local Queue.

  6. In the Create Local Queue dialog box, in Queue Name, type "SOLICITRESPONSEQ", and then click OK.

Creating the Receive Location and the MQSeries Queue

This procedure creates the send port and receive location to send the message to and receive the correlation message from MQSeries. The MQSeries queue will also be created when you create the receive location if not already created.

To create the receive location and the MQSeries queue

  1. Open the BizTalk Server Administration console.

  2. Expand BizTalk Server Administration, expand BizTalk Group, expand Applications, and then expand the required application.

  3. Right-click Receive Ports, point to New, and then click One-way Receive Port.

  4. In the One-way Receive Port Properties dialog box, in the Name box, type "MQReply", and click OK.

  5. In the left pane, click Receive Locations tab, and then click New.

  6. In the Receive Location Properties dialog box, in the Name box, type "MQReply”.

  7. In the Transport Type box, select MQSeries.

  8. In the Receive Handler box, select BizTalkServerApplication.

  9. In the Receive pipeline box, select Microsoft.BizTalk.DefaultPipelines.PassThruReceive.

  10. Click Configure.

  11. In the MQSeries Transport Properties dialog box, in the Polling Interval box, type "10".

  12. In the Queue Definition box, click the ellipsis (…) button.

  13. In the Queue Definition dialog box, in the Server Name box, type your computer name.

  14. In the Queue Manager box, select the default queue manager.

  15. In the Queue box, type " REPLYTOQ", and then click Export.

  16. In the Export dialog box, click Create Queue, and then clickOKor Done until you have exited all dialog boxes.

Creating the Send Port and MQSeries Queue

To create the send port and MQSeries queue

  1. Right-click Send Ports, point to New, and then click Static One-way Send Port.

  2. In the Send Port Properties dialog box, in the Name box, type "MQSolicitResponse".

  3. In the Transport Type box, select MQSeries.

  4. In the Send pipeline box, select Microsoft.BizTalk.DefaultPipelines.PassThruTransmit.

  5. In the Receive pipeline box, select Microsoft.BizTalk.DefaultPipelines.PassThruReceive.

  6. Click Configure.

  7. In the MQSeries Transport Properties dialog box, in the Queue Definition box, click the ellipsis (…) button.

  8. In the Queue Definition dialog box, in the Server Name box, type your computer name.

  9. In the Queue Manager box, select the default queue manager.

  10. In the Queue box, type " SOLICITRESPONSEQ", and then click Export.

  11. In the Export dialog box, click Create Queue, and then click OK or Done until you have exited all dialog boxes.

Enabling the Receive Location and Starting the Send Port

This procedure creates the folders required to receive the file into the orchestration and sends the correlated message and response message to the output folders.

To enable the receive location and start the send port

  1. In the BizTalk Server Administration console, click Receive Ports.

  2. In the details pane, right-click the MQIn receive location and click Enable.

  3. In the details pane, right-click the MQOut send port and click Start.

Creating the Folders Used by the Application

To create the folders used by the application

  1. If one does not already exist, create a folder named "temp" on your C:\ drive.

  2. Create folders under the C:\temp directory named "Pickup2", "Dropit2", and "MoveIt".

Modifying the Orchestration Used by the Application

This procedure modifies the orchestration used by the application.

To modify the Orchestration used by the application:

  1. In Microsoft Visual Studio, double-click the solution file, MQSCorrelationSolicitResponse.sln, to open the solution.

  2. From the Solution Explorer pane, double-click the orchestration MQSCorrelationSolicitResponse.odx to view the orchestration.

  3. Double-click the message assignment shape MessageAssignment_1 to launch the BizTalk Expression Editor.

  4. Enter the appropriate MQSeries queue manager name for the following expression:

    MQSeriesRequestSendMessage(MQSeries.MQMD_ReplyToQMgr) = "QM_<machine_name>";

  5. If you would like for the response message sent from BizTalk to contain the entire contents of the original message instead of only the first 100 bytes, modify the following line in the BizTalk Expression Editor.

    • Original line:

      MQSeriesRequestSendMessage(MQSeries.MQMD_Report) = 768;

    • Change to:

      MQSeriesRequestSendMessage(MQSeries.MQMD_Report) = 1792;

  6. In the BizTalk Expression Editor, click OK to save the modified expression.

  7. In Visual Studio, select File, and then select Save All.

Building and Deploying the Sample

This procedure builds and deploys the solution that contains the orchestration used in this application.

To build and deploy the sample

  1. In a command window, navigate to the following folder:

    <Samples Path>\AdaptersUsage\MQSeriesAdapter\MQSCorrelationSetOrchestrationWithSolicitResponse

  2. Run the file Setup.bat, which performs the following actions:

    1. Creates a strong name key for the project.

    2. Compiles and deploys the orchestration project.

    3. Creates a send port and a receive port with the File adapter.

    Note

    Since this orchestration specifies the bindings for sending and receiving files with the file adapter, when you deploy the orchestration the necessary send ports, receive port, and receive location will be created for receiving a file into the orchestration and outputting the correlation message and the response message.

Binding and Starting the Orchestration

This procedure binds the orchestration to the host and appropriate send ports and receive locations.

To bind and start the orchestration

  1. In the BizTalk Server Administration console, expand the Orchestrations folder.

  2. In the details pane, right-click the MQSCorrelationSolicitResponse orchestration and click Bind.

  3. Bind the orchestration ports to the following send ports and receive locations:

    Orchestration Port Messaging Port / Receive Location
    FileReceivePort MQSCorrelationSolicitResponse.Orchestration.FileReceivePort
    MQSeriesResponseReceivePort MQReply
    SolicitResponsePort MQSolicitResponse
    TempPort MQSCorrelationSolicitResponse.Orchestration.TempPort
    FileSendPort MQSCorrelationSolicitResponse.Orchestration.FileSendPort

  4. Click Host.

  5. In the Host box, select BizTalkServerApplication and click OK.

  6. In Send Ports, right-click MQSCorrelationSolicitResponse.Orchestration.TempPort, and then select Start.

  7. In Send Ports, right-click MQSCorrelationSolicitResponse.Orchestration.FileSendPort, and then select Start.

  8. In Receive Locations, right-click MQSCorrelationSolicitResponse.Orchestration.FileReceivePort, and then select Enable.

  9. Right-click the orchestration and click Start.

    Note

    Starting the orchestration also automatically enlists the orchestration.

Testing the Application

This procedure tests the application.

To test the application

  1. Put a file in the C:\Temp\Pickup2 folder.

  2. Examine the files in the C:\Temp\Dropit2 folder and the C:\Temp\Moveitfolder.

    • The C:\Temp\Dropit2 folder should contain a copy of the message that was originally picked up by BizTalk Server.

    • The C:\Temp\Moveitfolder should contain a response document with the message identifier (MQMD_MsgId) and the correlation identifier (MQMD_CorrelId).

    Note

    If you disable the MQReply receive location, you can examine the message in WebSphere MQ Explorer and see that the message and correlation identifiers are set. To do this, launch the WebSphere MQ Explorer and examine the message placed in the REPLYTOQ queue. The message and correlation identifiers are displayed on the Identifiers tab of the Messageproperties dialog box.

See Also

Correlating Messages Using Request-Reply
MQSeries Adapter Samples