ETL Active Directory in Oracle Data Integrator

Leverage existing skills by using the JDBC standard to read and write to Active Directory: Through drop-in integration into ETL tools like Oracle Data Integrator (ODI), the CData JDBC Driver for Active Directory connects real-time Active Directory data to your data warehouse, business intelligence, and Big Data technologies.

JDBC connectivity enables you to work with Active Directory just as you would any other database in ODI. As with an RDBMS, you can use the driver to connect directly to the Active Directory APIs in real time instead of working with flat files.

This article walks through a JDBC-based ETL -- Active Directory to Oracle. After reverse engineering a data model of Active Directory entities, you will create a mapping and select a data loading strategy -- since the driver supports SQL-92, this last step can easily be accomplished by selecting the built-in SQL to SQL Loading Knowledge Module.

Install the Driver

To install the driver, copy the driver JAR and .lic file, located in the installation folder, into the ODI appropriate directory:

• UNIX/Linux without Agent: ~/.odi/oracledi/userlib
• UNIX/Linux with Agent: $ODI_HOME/odi/agent/lib
• Windows without Agent: %APPDATA%\Roaming\odi\oracledi\userlib
• Windows with Agent: %APPDATA%\Roaming\odi\agent\lib

Restart ODI to complete the installation.

Reverse Engineer a Model

Reverse engineering the model retrieves metadata about the driver's relational view of Active Directory data. After reverse engineering, you can query real-time Active Directory data and create mappings based on Active Directory tables.

1. In ODI, connect to your repository and click New -> Model and Topology Objects.
2. On the Model screen of the resulting dialog, enter the following information:
   • Name: Enter ActiveDirectory.
   • Technology: Select Generic SQL (for ODI Version 12.2+, select Microsoft SQL Server).
   • Logical Schema: Enter ActiveDirectory.
   • Context: Select Global.
3. On the Data Server screen of the resulting dialog, enter the following information:
   • Name: Enter ActiveDirectory.
   • Driver List: Select Oracle JDBC Driver.
   • Driver: Enter cdata.jdbc.activedirectory.ActiveDirectoryDriver
   • URL: Enter the JDBC URL containing the connection string.

     To establish a connection, set the following properties:

     • Valid User and Password credentials (e.g., Domain\BobF or cn=Bob F,ou=Employees,dc=Domain).
     • Server information, including the IP or host name of the Server, as well as the Port.

     • BaseDN: This will limit the scope of LDAP searches to the height of the distinguished name provided.

       Note: Specifying a narrow BaseDN may greatly increase performance; for example, cn=users,dc=domain will only return results contained within cn=users and its children.

     Built-in Connection String Designer

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

     java -jar cdata.jdbc.activedirectory.jar

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

     Below is a typical connection string:

     jdbc:activedirectory:User=cn=Bob F,ou=Employees,dc=Domain;Password=bob123;Server=10.0.1.2;Port=389;
4. On the Physical Schema screen, enter the following information:
   • Name: Select from the Drop Down menu.
   • Database (Catalog): Enter CData.
   • Owner (Schema): If you select a Schema for Active Directory, enter the Schema selected, otherwise enter ActiveDirectory.
   • Database (Work Catalog): Enter CData.
   • Owner (Work Schema): If you select a Schema for Active Directory, enter the Schema selected, otherwise enter ActiveDirectory.
5. In the opened model click Reverse Engineer to retrieve the metadata for Active Directory tables.

Edit and Save Active Directory Data

After reverse engineering you can now work with Active Directory data in ODI. To edit and save Active Directory data, expand the Models accordion in the Designer navigator, right-click a table, and click Data. Click Refresh to pick up any changes to the data. Click Save Changes when you are finished making changes.

Create an ETL Project

Follow the steps below to create an ETL from Active Directory. You will load User entities into the sample data warehouse included in the ODI Getting Started VM.

1. Open SQL Developer and connect to your Oracle database. Right-click the node for your database in the Connections pane and click new SQL Worksheet.

   Alternatively you can use SQLPlus. From a command prompt enter the following:

   sqlplus / as sysdba
2. Enter the following query to create a new target table in the sample data warehouse, which is in the ODI_DEMO schema. The following query defines a few columns that match the User table in Active Directory: CREATE TABLE ODI_DEMO.TRG_USER (LOGONCOUNT NUMBER(20,0),Id VARCHAR2(255));
3. In ODI expand the Models accordion in the Designer navigator and double-click the Sales Administration node in the ODI_DEMO folder. The model is opened in the Model Editor.
4. Click Reverse Engineer. The TRG_USER table is added to the model.
5. Right-click the Mappings node in your project and click New Mapping. Enter a name for the mapping and clear the Create Empty Dataset option. The Mapping Editor is displayed.
6. Drag the TRG_USER table from the Sales Administration model onto the mapping.
7. Drag the User table from the Active Directory model onto the mapping.
8. Click the source connector point and drag to the target connector point. The Attribute Matching dialog is displayed. For this example, use the default options. The target expressions are then displayed in the properties for the target columns.
9. Open the Physical tab of the Mapping Editor and click USER_AP in TARGET_GROUP.
10. In the USER_AP properties, select LKM SQL to SQL (Built-In) on the Loading Knowledge Module tab.

You can then run the mapping to load Active Directory data into Oracle.