Contents
This sample shows how to use the TIBCO StreamBase® JSON to Tuple and Tuple to JSON operators.
See the description of the operators' Properties views in Using the JSON to Tuple Operator and Using the Tuple to JSON Operator.
The sample application illustrate the use of the JSON to Tuple and Tuple to JSON operators. In this sample, the operator takes an input tuple and produces a JSON string, it then takes that string and produces a tuple. The sample is setup with a schema to try out various data types converting from tuples to JSON strings and back.
-
In the Package Explorer view, in project
sample_JSONTuple
, double-click to open the
application.Sample.sbapp
-
With the
Sample.sbapp
application selected and active, click the button. This opens the SB Test/Debug perspective and starts the application. -
In the Manual Input view, select the
TestInput
stream and enter some values then click . -
In the Application Output view, observe a tuple dequeued on the
JSONOutput
andTupleOutput
streams. -
Experiment by entering other values in the fields of the
TestInput
stream, clicking , and observing the resulting output tuples. -
When done, press F9 or click the Stop Running Application button.
In StreamBase Studio, import this sample with the following steps:
-
From the top menu, click
→ . -
Select JSONTuple from the Data Constructs and Operators category.
-
Click OK.
StreamBase Studio creates a single project for the operator samples.
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_JSONTuple
See Default Installation Directories for the default location of studio-workspace
on your system.
In the default TIBCO StreamBase installation, this sample's files are initially installed in:
streambase-install-dir
/sample/JSONTuple
See Default Installation Directories for the default location of studio-workspace
on your system.