Connect to Perigon Data from a Connection Pool in Jetty

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

   
   <Configure id='perigondemo' class="org.eclipse.jetty.webapp.WebAppContext">
       <New id="perigondemo" class="org.eclipse.jetty.plus.jndi.Resource">
       <Arg><Ref refid="perigondemo"/></Arg>
       <Arg>jdbc/perigondb</Arg>
       <Arg>
         <New class="cdata.jdbc.api.APIDriver">
           <Set name="url">jdbc:api:</Set>
           <Set name="Profile">C:\profiles\Perigon.apip</Set>
           <Set name="AuthScheme">APIKey</Set>
           <Set name="ProfileSettings">"APIKey</Set>
         </New>
       </Arg>
     </New>
   </Configure>
   

   Using API Key Authentication

   To use the Perigon API, you need to obtain an API key from your Perigon account. Navigate to the Perigon dashboard and generate an API key from your account settings.

   After setting the following connection properties, you are ready to connect:

   • AuthScheme: Set this to APIKey.
   • APIKey: Set this to your Perigon API key.

   Example connection string:

   Profile=C:\profiles\Perigon.apip;AuthScheme=APIKey;ProfileSettings="APIKey=your_api_key"
   

   Available Tables

   The Perigon profile provides access to the following tables:

   • Articles - News articles retrieved from the Perigon news intelligence API
   • Headlines - Story clusters grouping related headline articles
   • Sources - News sources tracked by the Perigon news intelligence API
   • Journalists - Journalist profiles tracked by the Perigon news intelligence API

4. Configure the resource in the Web.xml:

   
     jdbc/perigondb
     javax.sql.DataSource
     Container
   
   

5. You can then access Perigon with a lookup to java:comp/env/jdbc/perigondb:

   InitialContext ctx = new InitialContext();
   DataSource myperigon = (DataSource)ctx.lookup("java:comp/env/jdbc/perigondb");
   

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.