Connect to HCL Domino Data in RapidMiner

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

Connect to HCL Domino in RapidMiner as a JDBC Data Source

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

1. Add a new database driver for HCL Domino: 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:domino:
4. Enter the path to the cdata.jdbc.domino.jar file, located in the lib subfolder of the installation directory.
5. Enter the driver class: cdata.jdbc.domino.DominoDriver
6. Create a new HCL Domino connection: Click Connections -> Manage Database Connections.
7. Enter a name for your connection.
8. For Database System, select the HCL Domino driver you configured previously.
9. Enter your connection string in the Host box.

   Prerequisites

   The connector requires the Proton component to be installed. Normally, Proton is distributed as part of the AppDev pack. See the HCL documentation for instructions on acquiring and installing Proton or the AppDev pack.

   Once the Proton service is installed and running, you will also need to create a user account and download its Internet certificate. This certificate can be used to set the connector certificate connection properties.

   Authenticating to Domino

   • Server: The name or IP address of the server running Domino with the Proton service.
   • Port: The port number that the Proton service is listening on.
   • Database: The name of the database file, including the .nsf extension.
   • SSLClientCertType: This must match the format of the certificate file. Typically this will be either PEMKEY_FILE for .pem certificates or PFXFILE for .pfx certificates.
   • SSLClientCert: The path to the certificate file.
   • SSLServerCert: This can be set to (*) if you trust the server. This is usually the case, but if you want to perform SSL validation, you may provide a certificate or thumbprint instead. See the documentation for SSLServerCert for details.

   Additional Server Configuration

   The connector supports querying Domino views if any are defined. Before views can be queried by the connector they must be registered with the design catalog.

   Please refer to the Catalog Administration section of the AppDev pack documentation for details on how to do this.

   Built-in Connection String Designer

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

   java -jar cdata.jdbc.domino.jar

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

   A typical connection string is below:

   Server=https://domino.corp.com;Database=names.nsf;Port=3002;SSLClientCertType=PEMKEY_FILE;SSLClientCert=full_path_of_certificate.pem;SSLServerCert=*
10. Enter your username and password if necessary.

You can now use your HCL Domino connection with the various RapidMiner operators in your process. To retrieve HCL Domino 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 HCL Domino data.