We need to build a method in the DataProvider class to look up the messages on the fly using the code passed in to it. We can use a similar method to one created earlier in the utility classes:

/**
 * lookupMessage - method to retrieve error messages using code
 *
 * @param propFilePath - the property file including path
 * @param code - the confirmation or error code
 * @return String
 * @throws Exception
 */
public static String lookupMessage(String propFilePath,
                                   String code)
                                   throws Exception {

    Properties props = new Properties();
    props.load(new FileInputStream(propFilePath));
    String getMsg = props.getProperty(code, null);

    if ( getMsg != null ) {
        return getMsg;
    }

    else {
        throw new Exception("ERROR: The Code '" + code + "' was not 
        found!");
    }
}