UDP Unicast Adapter Sample

About This Sample

This sample demonstrates the ability to both send and receive strings through the use of the Spotfire Streaming Adapter for UDP. Both the sender and receiver adapters are configured on the default port numbers. The feed simulation will work as long as the Receiver port number isn't altered.

Importing This Sample into StreamBase Studio

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

  • From the top-level menu, select File>Import Samples and Community Content.

  • Enter udp to narrow the list of options.

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

  • Click Import Now.

StreamBase Studio creates a project for the sample.

Running This Sample in StreamBase Studio

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

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

    If the red marks do not resolve themselves after a minute, select the project, right-click, and select Maven>Update Project from the context menu.

  2. Open the src/main/eventflow/packageName folder.

  3. Open the udp_uni_sample.sbapp file and click the Run button. This opens the SB Test/Debug perspective and starts the module.

  4. In Feed Simulations view, select input_stream_uni.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 ReceiverControl input stream from the dropdown menu in the Manual Input view. Type disconnect and click Send Data. This closes the connection to UDPReceiver.

    Now there should no more tuples appearing on the Output Streams view.

    To reconnect, select ReceiverControl and send the command connect.

  5. When done, press F9 or click the Terminate EventFlow Fragment 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.