Contents
This sample shows how to use the TIBCO StreamBase® Avro to Tuple and Tuple to Avro operators.
See the description of the operators' Properties views in Using the Avro to Tuple Operator and Using the Tuple to Avro Operator.
The sample application illustrate the use of the Avro to Tuple and Tuple to Avro operators. In this sample, the operator takes an input tuple and produces an Apache Avro Record blob, it then takes that blob and produces a tuple. The sample is setup with a schema to try out various data types converting from tuples to Avro and back.
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In the Package Explorer view, in project
sample_avro, double-click to open theAvroConvert.sbapp -
With the
AvroConvert.sbappapplication selected and active, click the
button. This opens the SB Test/Debug perspective and starts the application.
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In the Manual Input view, select the
Inputstream and enter some values then click . -
In the Application Output view, observe a tuple dequeued on the
ConvertEntireInputOut,ConvertFieldInputOut, andOutputstreams. -
Experiment by entering other values in the fields of the
TestInputstream, 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:
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From the top menu, click → .
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Select Avro from the Data Constructs and Operators category.
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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 the permission problems that can occur when trying to work with the initially installed location of the sample. The default workspace location for this sample is:
studio-workspace/sample_avroSee Default Installation Directories for the location of studio-workspace on your system.