Bi-Directional Serialized Tuple Socket Input/Output Adapter Samples

About The Samples

The TIBCO StreamBase® Bi-Directional Serialized Tuple Socket Reader and Writer Adapters receive and send data over a socket connection in a serialized tuple format, a byte array of tuple data having a header with a single int value as the header indicating that tuple's size. This example shows how linked socket readers/writers work as both client and server, and how two different data transformers work (Serialized Tuple and BLOB).

The client in this example connects to the server and then sends an initial tuple of data. When the server receives data from the client socket, it echoes the tuple directly without modifying it. The client waits, and when it receives a response from the server it increments an integer in the response tuple by 1 and then sends the tuple back to the server. This handshaking continues until the parameter ${FinishedValue} is reached.

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 bidi to narrow the list of options.

  • Select Bi-Directional Serialized Tuple Socket Input/Output Adapter from the StreamBase Standard Adapters category.

  • Click OK.

StreamBase Studio creates a single project containing the sample files.

Running BLOBServerWithSerializedTupleClient.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 Manual Input view select the ControlClient Stream. Enter CONNECT into the command field and click Send Data.

  6. In the Application Output view, observe tuples emitted on the ReadDataServer and ReadDataClient output streams.

  7. Select any tuple emitted from either stream and inspect tuple data fields in the Variables view below the output streams to analyze and understand their structure.

  8. 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.

Important

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:

studio-workspace/sample_adapter_embedded_bi-directional-serialized_tuple-socket

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