Connect to SAS xpt Data from a Connection Pool in Jetty

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SASxpt JDBC Driver

Rapidly create and deploy powerful Java applications that integrate with SAS xpt (XPORT) files data.



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

The CData JDBC driver for SAS xpt is easy to integrate with Java Web applications. This article shows how to efficiently connect to SAS xpt data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for SAS xpt 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 SAS xpt data source at the level of the Web app, in WEB-INF\jetty-env.xml.

    <Configure id='sasxptdemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="sasxptdemo" class="org.eclipse.jetty.plus.jndi.Resource"> <Arg><Ref refid="sasxptdemo"/></Arg> <Arg>jdbc/sasxptdb</Arg> <Arg> <New class="cdata.jdbc.sasxpt.SASXptDriver"> <Set name="url">jdbc:sasxpt:</Set> <Set name="URI">C:/folder</Set> </New> </Arg> </New> </Configure>

    Connecting to Local SASXpt Files

    You can connect to local SASXpt file by setting the URI to a folder containing SASXpt files.

    Connecting to S3 data source

    You can connect to Amazon S3 source to read SASXpt files. Set the following properties to connect:

    • URI: Set this to the folder within your bucket that you would like to connect to.
    • AWSAccessKey: Set this to your AWS account access key.
    • AWSSecretKey: Set this to your AWS account secret key.
    • TemporaryLocalFolder: Set this to the path, or URI, to the folder that is used to temporarily download SASXpt file(s).

    Connecting to Azure Data Lake Storage Gen2

    You can connect to ADLS Gen2 to read SASXpt files. Set the following properties to connect:

    • URI: Set this to the name of the file system and the name of the folder which contacts your SASXpt files.
    • AzureAccount: Set this to the name of the Azure Data Lake storage account.
    • AzureAccessKey: Set this to our Azure DataLakeStore Gen 2 storage account access key.
    • TemporaryLocalFolder: Set this to the path, or URI, to the folder that is used to temporarily download SASXpt file(s).

  4. Configure the resource in the Web.xml:

    jdbc/sasxptdb javax.sql.DataSource Container
  5. You can then access SAS xpt with a lookup to java:comp/env/jdbc/sasxptdb: InitialContext ctx = new InitialContext(); DataSource mysasxpt = (DataSource)ctx.lookup("java:comp/env/jdbc/sasxptdb");

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.