Data Manager Open Metadata Access Service (OMAS)

The Data Manager OMAS provides APIs for technologies wishing to register new data assets, connections and related schema from data resources located in database servers, file systems, file managers and content managers. The caller of this interface may be the data manager itself, or an integration daemon if the data manager does not support open metadata directly.

There are specific APIs for different types of data managers and assets. These reflect the terminology typically associated with the specific type of data manager to make it easier for people to map the Data Manager OMAS APIs and events to the actual technology. However, the specific implementation objects supported by these APIs all inherit from common open metadata types so it is possible to work with the resulting metadata in a technology agnostic manner using services such as the Asset Consumer OMAS.

The Data Manager OMAS APIs needs to accommodate slight variations between different vendor implementations of data managers, along with information relating to local deployment standards. As such there is provision in these interfaces to support:

• VendorProperties for properties unique to a specific vendor implementation, and
• AdditionalProperties for properties that the metadata team wish to add to the metadata.

The module structure for the Data Manager OMAS is as follows:

• data-manager-client supports the client library.
• data-manager-api supports the common Java classes that are used both by the client and the server.
• data-manager-server supports in implementation of the access service and its related event management.
• data-manager-spring supports the REST API using the Spring libraries.
• data-manager-topic-connectors supports the connectors used to access the InTopic and OutTopic events from the Data Manager OMAS.

Return to the access-services module.

License: CC BY 4.0, Copyright Contributors to the ODPi Egeria project.