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Connect to Azure Data Catalog Data from a Connection Pool in Jetty

The Azure Data Catalog JDBC Driver supports connection pooling: This article shows how to connect faster to Azure Data Catalog data from Web apps in Jetty.

The CData JDBC driver for Azure Data Catalog is easy to integrate with Java Web applications. This article shows how to efficiently connect to Azure Data Catalog data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for Azure Data Catalog in Jetty.

Configure the JDBC Driver for Salesforce as a JNDI Data Source

Follow the steps below to connect to Salesforce from Jetty.

  1. Enable the JNDI module for your Jetty base. The following command enables JNDI from the command-line:

    java -jar ../start.jar --add-to-startd=jndi
  2. Add the CData and license file, located in the lib subfolder of the installation directory, into the lib subfolder of the context path.
  3. Declare the resource and its scope. Enter the required connection properties in the resource declaration. This example declares the Azure Data Catalog data source at the level of the Web app, in WEB-INF\jetty-env.xml.

    <Configure id='azuredatacatalogdemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="azuredatacatalogdemo" class=""> <Arg><Ref refid="azuredatacatalogdemo"/></Arg> <Arg>jdbc/azuredatacatalogdb</Arg> <Arg> <New class="cdata.jdbc.azuredatacatalog.AzureDataCatalogDriver"> <Set name="url">jdbc:azuredatacatalog:</Set> <Set name="InitiateOAuth">GETANDREFRESH</Set> </New> </Arg> </New> </Configure>

    You can optionally set the following to read the different catalog data returned from Azure Data Catalog.

      CatalogName: Set this to the CatalogName associated with your Azure Data Catalog. To get your Catalog name, navigate to your Azure Portal home page > Data Catalog > Catalog Name

    Connect Using OAuth Authentication

    You must use OAuth to authenticate with Azure Data Catalog. OAuth requires the authenticating user to interact with Azure Data Catalog using the browser. For more information, refer to the OAuth section in the help documentation.

  4. Configure the resource in the Web.xml:

    jdbc/azuredatacatalogdb javax.sql.DataSource Container
  5. You can then access Azure Data Catalog with a lookup to java:comp/env/jdbc/azuredatacatalogdb: InitialContext ctx = new InitialContext(); DataSource myazuredatacatalog = (DataSource)ctx.lookup("java:comp/env/jdbc/azuredatacatalogdb");

More Jetty Integration

The steps above show how to configure the driver in a simple connection pooling scenario. For more use cases and information, see the Working with Jetty JNDI chapter in the Jetty documentation.