UDP Multicast Mode Input and Output Adapter Sample

About This Sample

This sample demonstrates the ability to both send and receive strings through the use of the TIBCO StreamBase® Input and Output Adapters for UDP, in multicast mode. Both the sender and receiver adapters are configured on the default Multicast Group IP and Port number. This sample contains one UDPSender and two UDPReceivers to illustrate the use of the multicast message delivery.

Importing This Sample into StreamBase Studio

In StreamBase Studio, import this sample with the following steps:

  • From the top-level menu, select FileLoad StreamBase Sample.

  • Type udp to narrow the list of options.

  • Select UDP Multicast Mode Input and Output Adapters from the StreamBase Standard Adapters category.

  • Click OK.

StreamBase Studio creates a project for the sample.

Running udp_multi_sample.sbapp in StreamBase Studio

  1. In the Project Explorer, open the sample you just loaded.

  2. Open the src/main/eventflow folder.

  3. Open the package folder (most samples contain a single package folder. Open the top-level package folder if your sample contains more than one folder).

  4. Open the named application file and click the Run button. This opens the SB Test/Debug perspective and starts the application.

    If you see red marks, wait a moment for the project in Studio to load its features.

    If red marks do not resolve themselves in a moment, select the project and right-click MavenUpdate Project from the context menu.

  5. In the Feed Simulations view, select input_stream_multi.sbfs and click Run.

    There will be two copies of each tuple on the Output Streams view, one from each of the receiver output streams.

    Next, try selecting the Receiver2Control input stream from the drop-down menu in the Manual Input view. Type disconnect and click Send Data. This closes the connection to the multicast group for UDPReceiver2.

    One copy of each tuple appears on the Output Streams view.

    To reconnect, select the Receiver2Control input stream and send the command connect.

  6. When done, press F9 or click the Stop Running Application button.

Sample Location

When you load the sample into StreamBase Studio, Studio copies the sample project's files to your Studio workspace, which is normally part of your home directory, with full access rights.


Load this sample in StreamBase Studio, and thereafter use the Studio workspace copy of the sample to run and test it, even when running from the command prompt.

Using the workspace copy of the sample avoids permission problems. The default workspace location for this sample is:


See Default Installation Directories for the default location of studio-workspace on your system.