Connect to LINE Data in RapidMiner

This article shows how you can easily integrate the CData JDBC driver for LINE into your processes in RapidMiner. This article uses the CData JDBC Driver for LINE to transfer LINE data to a process in RapidMiner.

Connect to LINE in RapidMiner as a JDBC Data Source

You can follow the procedure below to establish a JDBC connection to LINE:

1. Add a new database driver for LINE: Click Connections -> Manage Database Drivers.
2. In the resulting wizard, click the Add button and enter a name for the connection.
3. Enter the prefix for the JDBC URL:

   
   jdbc:api:
   

4. Enter the path to the cdata.jdbc.api.jar file, located in the lib subfolder of the installation directory.
5. Enter the driver class:

   
   cdata.jdbc.api.APIDriver
   

   
6. Create a new LINE connection: Click Connections -> Manage Database Connections.
7. Enter a name for your connection.
8. For Database System, select the LINE driver you configured previously.
9. Enter your connection string in the Host box.

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

   LINE API Profile Settings

   The LINE Messaging API uses Channel Access Token authentication. To obtain a Channel Access Token:

   1. Log in to the LINE Developers Console at https://developers.line.biz
   2. Select your provider and open your Messaging API channel.
   3. Navigate to the Messaging API tab.
   4. Under Channel access token, click Issue to generate a long-lived token.
   5. Copy the generated token.

   After obtaining your Channel 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 LINE Channel Access Token.

   Built-in Connection String Designer

   For assistance in constructing the JDBC URL, use the connection string designer built into the LINE 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 connection string is below:

   
   Profile=C:\profiles\LINE.apip;ProfileSettings='APIKey=your_channel_access_token;';AuthScheme=APIKey;
   

10. Enter your username and password if necessary.

You can now use your LINE connection with the various RapidMiner operators in your process. To retrieve LINE data, drag the Retrieve operator from the Operators view. With the Retrieve operator selected, you can then define which table to retrieve in the Parameters view by clicking the folder icon next to the "repository entry." In the resulting Repository Browser, you can expand your connection node to select the desired example set.

Finally, wire the output to the Retrieve process to a result, and run the process to see the LINE data.