Connect to Tanda Data in JRuby

JRuby is a high-performance, stable, fully threaded Java implementation of the Ruby programming language. The CData JDBC Driver for Tanda makes it easy to integrate connectivity to live Tanda data in JRuby. This article shows how to create a simple JRuby app that connects to Tanda data, executes a query, and displays the results.

Configure a JDBC Connection to Tanda Data

Before creating the app, note the installation location for the JAR file for the JDBC Driver (typically C:\Program Files\CData\CData JDBC Driver for Tanda\lib).

JRuby natively supports JDBC, so you can easily connect to Tanda and execute SQL queries. Initialize the JDBC connection with the getConnection function of the java.sql.DriverManager class.

Start by setting the Profile connection property to the location of the Tanda Profile on disk (e.g. C:\profiles\Tanda.apip). Next, set the ProfileSettings connection property to the connection string for Tanda (see below).

Tanda API Profile Settings

Register an OAuth application at the Tanda applications page by clicking New App and entering your app name and redirect URI.

Built-in Connection String Designer

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

java -jar cdata.jdbc.api.jar

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

Below is a typical JDBC connection string for Tanda:

jdbc:api:Profile=C:\profiles\Tanda.apip;Authscheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;

Create a JRuby App with Connectivity to Tanda Data

Create a new Ruby file (for example: APISelect.rb) and open it in a text editor. Copy the following code into your file:

require 'java'
require 'rubygems'
require 'C:/Program Files/CData/CData JDBC Driver for Tanda 2018/lib/cdata.jdbc.api.jar'

url = "jdbc:api:Profile=C:\profiles\Tanda.apip;Authscheme=OAuth;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;"
conn = java.sql.DriverManager.getConnection(url)
stmt = conn.createStatement
rs = stmt.executeQuery("SELECT ShiftId, UserId FROM ActiveShifts")
while (rs.next) do
 puts rs.getString(1) + ' ' + rs.getString(2)
end

With the file completed, you are ready to display your Tanda data with JRuby. To do so, simply run your file from the command line:

jruby -S APISelect.rb

Writing SQL-92 queries to Tanda allows you to quickly and easily incorporate Tanda data into your own JRuby applications. Download a free trial today!