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Rapidly create and deploy powerful Java applications that integrate with HBase through Apache Phoenix.

Access Phoenix Data in Mule Applications Using the CData JDBC Driver



Create a simple Mule Application that uses HTTP and SQL with the CData JDBC Driver for Phoenix to create a JSON endpoint for Phoenix data.

The CData JDBC Driver for Phoenix connects Phoenix data to Mule applications enabling read functionality with familiar SQL queries. The JDBC Driver allows users to easily create Mule applications to backup, transform, report, and analyze Phoenix data.

This article demonstrates how to use the CData JDBC Driver for Phoenix inside of a Mule project to create a Web interface for Phoenix data. The application created allows you to request Phoenix data using an HTTP request and have the results returned as JSON. The exact same procedure outlined below can be used with any CData JDBC Driver to create a Web interface for the 200+ available data sources.

  1. Create a new Mule Project in Anypoint Studio.
  2. Add an HTTP Connector to the Message Flow.
  3. Configure the address for the HTTP Connector.
  4. Add a Database Select Connector to the same flow, after the HTTP Connector.
  5. Create a new Connection (or edit an existing one) and configure the properties.
    • Set Connection to "Generic Connection"
    • Select the CData JDBC Driver JAR file in the Required Libraries section (e.g. cdata.jdbc.apachephoenix.jar).
    • Set the URL to the connection string for Phoenix

      Connect to Apache Phoenix via the Phoenix Query Server. Set the Server and Port (if different from the default port) properties to connect to Apache Phoenix. The Server property will typically be the host name or IP address of the server hosting Apache Phoenix.

      Authenticating to Apache Phoenix

      By default, no authentication will be used (plain). If authentication is configured for your server, set AuthScheme to NEGOTIATE and set the User and Password properties (if necessary) to authenticate through Kerberos.

      Built-in Connection String Designer

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

      java -jar cdata.jdbc.apachephoenix.jar

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

    • Set the Driver class name to cdata.jdbc.apachephoenix.ApachePhoenixDriver.
    • Click Test Connection.
  6. Set the SQL Query Text to a SQL query to request Phoenix data. For example: SELECT Id, Column1 FROM MyTable WHERE Id = '123456'
  7. Add a Transform Message Component to the flow.
  8. Set the Output script to the following to convert the payload to JSON:
    %dw 2.0
    output application/json
    ---
    payload
            
  9. To view your Phoenix data, navigate to the address you configured for the HTTP Connector (localhost:8081 by default): http://localhost:8081. The Phoenix data is available as JSON in your Web browser and any other tools capable of consuming JSON endpoints.

At this point, you have a simple Web interface for working with Phoenix data (as JSON data) in custom apps and a wide variety of BI, reporting, and ETL tools. Download a free, 30 day trial of the JDBC Driver for Phoenix and see the CData difference in your Mule Applications today.