Configure the CData JDBC Driver for Power BI XMLA in a Connection Pool in Tomcat

The CData JDBC Drivers support standard JDBC interfaces to integrate with Web applications running on the JVM. This article details how to connect to Power BI XMLA data from a connection pool in Tomcat.

Connect to Power BI XMLA Data through a Connection Pool in Tomcat

1. Copy the CData JAR and CData .lic file to $CATALINA_HOME/lib. The CData JAR is located in the lib subfolder of the installation directory.
2. Add a definition of the resource to the context. Specify the JDBC URL here.

   By default, use Azure AD to connect to Microsoft Power BI XMLA. Azure AD is Microsoft’s multi-tenant, cloud-based directory and identity management service. It is user-based authentication that requires that you set AuthScheme to AzureAD.

   For more information on other authentication schemes, refer to the Help documentation.

   Built-in Connection String Designer

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

   java -jar cdata.jdbc.powerbixmla.jar

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

   You can see the JDBC URL specified in the resource definition below.

   <Resource name="jdbc/powerbixmla" auth="Container" type="javax.sql.DataSource" driverClassName="cdata.jdbc.powerbixmla.PowerBIXMLADriver" factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" url="jdbc:powerbixmla:AuthScheme=AzureADInitiateOAuth=GETANDREFRESH" maxActive="20" maxIdle="10" maxWait="-1" />

   To allow a single application to access Power BI XMLA data, add the code above to the context.xml in the application's META-INF directory.

   For a shared resource configuration, add the code above to the context.xml located in $CATALINA_BASE/conf. A shared resource configuration provides connectivity to Power BI XMLA for all applications.

3. Add a reference to the resource to the web.xml for the application. Power BI XMLA data JSP jdbc/PowerBIXMLA javax.sql.DataSource Container
4. Initialize connections from the connection pool: Context initContext = new InitialContext(); Context envContext = (Context)initContext.lookup("java:/comp/env"); DataSource ds = (DataSource)envContext.lookup("jdbc/PowerBIXMLA"); Connection conn = ds.getConnection();

More Tomcat Integration

The steps above show how to connect to Power BI XMLA data in a simple connection pooling scenario. For more use cases and information, see the JNDI Datasource How-To in the Tomcat documentation.