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Connect Java applications with the DynamoDB real-time NoSQL cloud database service. Use Amazon DynamoDB as the big data backend that powers your Java/J2EE applications.

Build Semantic Layer Views for Amazon DynamoDB Data in APOS Live Data Gateway



Use the CData Connector for Amazon DynamoDB in APOS Live Data Gateway to build Semantic Layer Views for Amazon DynamoDB data.

APOS Live Data Gateway (LDG) is a data connection and data transformation solution that enables live data connectivity and expanded data source options for SAP Analytics Cloud and other SAP solutions. When paired with CData Connectors, users can build semantic layer views for live Amazon DynamoDB data, enabling real-time analytics on Amazon DynamoDB just like working with a relational database.

With built-in optimized data processing, the CData Connector offers unmatched performance for interacting with live Amazon DynamoDB data. When you issue complex SQL queries to Amazon DynamoDB, the driver pushes supported SQL operations, like filters and aggregations, directly to Amazon DynamoDB and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations). Its built-in dynamic metadata querying allows you to work with and analyze Amazon DynamoDB data using native data types.

Download and Install the Connector Files

In order to access Amazon DynamoDB data through the APOS Live Data Gateway, you will need to download the connector files from APOS and install them on the machine hosting the Live Data Gateway. An APOS representative can deliver the necessary files.

  • Install the CData DLL file (System.Data.CData.AmazonDynamoDB.dll) to the APOS Live Data Gateway installation directory (C:\Program Files\Live Data Gateway\Admin\ by default).
  • Install the CData JAR file (cdata.jdbc.amazondynamodb.jar) to the ConnectionTest_lib folder in the installation directory (C:\Program Files\Live Data Gateway\Admin\ConnectionTest_lib\ by default).
  • Install the CData JAR file (cdata.jdbc.amazondynamodb.jar) to the lib folder in the Web UI installation directory (e.g.: C:\LDG_WebUI\lib\)

Configuring the Amazon DynamoDB Connection String

Before establishing the connection to Amazon DynamoDB from the APOS Live Data Gateway, you need to configure the Amazon DynamoDB JDBC Connection String.

Built-in Connection String Designer

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

java -jar cdata.jdbc.amazondynamodb.jar

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

The connection to Amazon DynamoDB is made using your AccessKey, SecretKey, and optionally your Domain and Region. Your AccessKey and SecretKey can be obtained on the security credentials page for your Amazon Web Services account. Your Region will be displayed in the upper left-hand corner when you are logged into DynamoDB.

Your connection string will look similar to the following:

jdbc:AmazonDynamoDB:Access Key=xxx;Secret Key=xxx;Domain=amazonaws.com;Region=OREGON;

Connecting to Amazon DynamoDB & Creating a Semantic Layer View

After installing the connector files and configuring the connection string, you are ready to connect to Amazon DynamoDB in the Live Data Gateway Admin tool and build a semantic layer view in the Live Data Gateway Web UI.

Configuring the Connection to Amazon DynamoDB

  1. Log into your APOS Live Data Gateway Manager
  2. If you haven't already, update your APOS LDG license file
    1. Click File -> Configurations
    2. Click on the "..." Menu for the License
    3. Select the license file from the APOS team that includes your CData Connector license
  3. In the APOS Live Data Gateway Manager, click "Add"
  4. In the APOS Live Data Gateway On the Connection tab, configure the connection:
    • Set Data Source to "Database"
    • Set Database to "CData Drivers"
    • Set Database CData Drivers to "Amazon DynamoDB"
    • Set Connection String to the connection string configured earlier (e.g.: jdbc:AmazonDynamoDB:Access Key=xxx;Secret Key=xxx;Domain=amazonaws.com;Region=OREGON;
    • Set Driver Class to "cdata.jdbc.amazondynamodb.AmazonDynamoDBDriver" (this should be set by default)
  5. Click Test Connection
  6. Click Save
  7. Give your connection a unique prefix (e.g. "amazondynamodb")
  8. Highlight the newly created connection and click File -> "Approve Users For Web UI"
  9. Approve the appropriate DB users to create views and click "Save"

At this point, we are ready to build our semantic layer view in the Live Data Gateway Web UI.

Creating a Semantic Layer View

  1. In your browser, navigate to the APOS Live Data Gateway Portal
  2. Select a Connection (e.g. "amazondynamodb")
  3. Since Amazon DynamoDB does not require a User or Password to authenticate, you may use whatever values you wish for User Name and Password
  4. Click "Login"
  5. Once connected, click "Semantic Layer" to create a new semantic layer view
  6. Click "New Semantic Layer View"
  7. Set the Semantic Layer View Prefix and Semantic Layer View Name
  8. Click "Step 2"
  9. Select the table(s) and column(s) you wish to include in your view
  10. Click "Step 3"
  11. Select the Measures from the available table columns
  12. Click "Step 5" (we skipped the "Extra Dimensions" step)
  13. Add any Variable Prompts
  14. Click "Step 6"
  15. Define any Table Joins
  16. Click "Review"
  17. Review you semantic layer view and click "Save"

With the Semantic Layer View created, you are ready to access your Amazon DynamoDB data through the APOS Live Data Gateway, enabling real-time data connectivity to Amazon DynamoDB data from SAP Analytics Cloud and other SAP solutions.

More Information & Free Evaluation

Please visit APOS Systems - APOS Solutions - Request Evaluation Software to request evaluation software or email [email protected] for more information on working with your live Amazon DynamoDB data in APOS Live Data Gateway.