Versions Compared

Old Version 1

changes.mady.by.user Mandy Chessell

Saved on

compared with

New Version 2

changes.mady.by.user Mandy Chessell

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Figure 1 below shows a schematic of the core objects of the open connector framework.

 

Image Added

Image Removed

Figure 1: Open Connector Framework - Overview of Operation


 

  1. An application requests a connection to the data store by calling the Connector Broker.
  2. The connector broker looks up the the connection details in the Apache Atlas Metadata Repository.
  3. The connection details identifies the Connector Provider and the parameters it needs to create a Connector. 
  4. A connector is a java object. It is returned to the application by the connector broker
  5. The application is able to access both data and metadata through the connector.
  6. The connector extracts data from the data store.
  7. The connector extracts metadata from the Apache Atlas metadata repository.  It knows which asset metadata to return because it is linked to the connection details in Atlas.
Figure 1: Open Connector Framework - Overview of Operation

 

The OCF provides:

  • the implementation of the connector broker - there is both a Java and a RESTful API for the Connector Broker
  • the metadata model for the connector directory and connection metadata in Apache Atlas metadata repository
  • the APIs to enable the metadata to be maintained and accessed:
    • Connector Directory open metadata access service API - for managing connection metadata and organizing them into connector directories for convenience and access management
    • Asset open metadata access service API - for accessing an maintaining metadata about an asset.

In addition Apache Atlas will provide support for JDBC connectors and open metadata repositories (such as Apache Atlas).

Other vendors or open source projects may supply connector providers what are able to create connectors for different types of data assets.  

 

...