Connect to Clarifai Data in CloverDX (formerly CloverETL)

The CData JDBC Driver for Clarifai enables you to use the data transformation components in CloverDX (formerly CloverETL) to work with Clarifai as sources. In this article, you will use the JDBC Driver for Clarifai to set up a simple transfer into a flat file. The CData JDBC Driver for Clarifai enables you to use the data transformation components in CloverDX (formerly CloverETL) to work with Clarifai as sources. In this article, you will use the JDBC Driver for Clarifai to set up a simple transfer into a flat file.

Connect to Clarifai as a JDBC Data Source

1. Create the connection to Clarifai data. In a new CloverDX graph, right-click the Connections node in the Outline pane and click Connections -> Create Connection. The Database Connection wizard is displayed.
2. Click the plus icon to load a driver from a JAR. Browse to the lib subfolder of the installation directory and select the cdata.jdbc.api.jar file.
3. Enter the JDBC URL.

   Start by setting the Profile connection property to the location of the Clarifai Profile on disk (e.g. C:\profiles\Clarifai.apip). Next, set the ProfileSettings connection property to the connection string for Clarifai (see below).

   Clarifai API Profile Settings

   Clarifai uses Personal Access Tokens (PATs) for authentication. To obtain a PAT:

   1. Log in to your Clarifai account at https://clarifai.com.
   2. Navigate to your profile settings and select Security.
   3. Click Create Personal Access Token.
   4. Select the required scopes and click Create Token.
   5. Copy the generated token (it will only be shown once).

   After obtaining your Personal Access Token, set the following connection properties:

   • AuthScheme: Set this to APIKey.

   Set the following in the ProfileSettings connection property:

   • APIKey: Set this to your Clarifai Personal Access Token (PAT).

   Built-in Connection String Designer

   For assistance in constructing the JDBC URL, use the connection string designer built into the Clarifai JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

   
   java -jar cdata.jdbc.api.jar
   

   Fill in the connection properties and copy the connection string to the clipboard.

   

   A typical JDBC URL is below:

   jdbc:api:Profile=C:\profiles\Clarifai.apip;AuthScheme=APIKey;ProfileSettings='APIKey=your_personal_access_token';

Query Clarifai Data with the DBInputTable Component

1. Drag a DBInputTable from the Readers selection of the Palette onto the job flow and double-click it to open the configuration editor.
2. In the DB connection property, select the Clarifai JDBC data source from the drop-down menu.
3. Enter the SQL query. For example:

   SELECT Id, Name FROM Apps WHERE UserId = 'my-user-id'

Write the Output of the Query to a UniversalDataWriter

1. Drag a UniversalDataWriter from the Writers selection onto the jobflow.
2. Double-click the UniversalDataWriter to open the configuration editor and add a file URL.
3. Right-click the DBInputTable and then click Extract Metadata.
4. Connect the output port of the DBInputTable to the UniversalDataWriter.
5. In the resulting Select Metadata menu for the UniversalDataWriter, choose the Apps table. (You can also open this menu by right-clicking the input port for the UniversalDataWriter.)
6. Click Run to write to the file.