Connect to Placid Data from a Connection Pool in Jetty

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

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

   Placid uses API Key authentication to control access to the API. API tokens are project-specific and can be obtained from your project settings on placid.app.

   Using API Key Authentication

   To obtain your API key, log in to placid.app, navigate to your project, open the project settings, and generate an API token from the API section. Note that each API token is scoped to a specific project.

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

   • AuthScheme: Set this to APIKey.
   • APIKey: Set this to your Placid project API token.

   Example connection string:

   Profile=C:\profiles\Placid.apip;AuthScheme=APIKey;ProfileSettings='APIKey=your_project_api_token';
   

4. Configure the resource in the Web.xml:

   
     jdbc/placiddb
     javax.sql.DataSource
     Container
   
   

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

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

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.