Madhan Neethiraj created ATLAS-2251:
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Summary: Remove/replace use of TypeSystem with AtlasTypeRegistry
Key: ATLAS-2251
URL: https://issues.apache.org/jira/browse/ATLAS-2251
Project: Atlas
Issue Type: Task
Components: atlas-core
Affects Versions: 1.0.0
Reporter: Madhan Neethiraj
Assignee: Madhan Neethiraj
Priority: Critical
With introduction of V2 APIs in 0.8 release, Atlas core type-system
implementation moved to use AtlasTypeRegistry (which uses data-structures
introduced in V2 APIs). However, earlier version equivalent, TypeSystem (which
uses V1 data-structures), is still being referenced in few places, like:
- V1 REST APIs, to covert between V1 and V2 data-structures
- notification processing, which uses V1 data-structures
- DSL query implementation
- AtlasClient API
- unit tests
Having to support legacy TypeSystem causes run time overhead in duplicate
caching of type-information - in AtlasTypeRegistry and TypeSystem. Removing
TypeSystem implementation will help eliminate this overhead and also improve
maintainability of Atlas sources.
This JIRA is to track removal of TypeSystem implementation and its references;
where necessary, references should be updated to use AtlasTypeRegistry
equivalent.
- it is very critical to continue to support V1 REST APIs and processing of
current V1 notifications
- existing unit tests that use V1 data-structures will be removed and will be
replaced with equivalents that use V2 data-structures
- AtlasClient in new release will only support V2 data-structures; however,
older version AtlasClient will continue to work with new version of Atlas server
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