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Posted to dev@eventmesh.apache.org by GitBox <gi...@apache.org> on 2021/07/05 18:45:31 UTC
[GitHub] [incubator-eventmesh] yzhao244 edited a comment on issue #339: Integrate With OpenSchema
yzhao244 edited a comment on issue #339:
URL: https://github.com/apache/incubator-eventmesh/issues/339#issuecomment-874276751
> @yzhao244 Would you like to share some new designs for us? thanks.
What is the purpose of the design:
The purpose of the design is for introducing Schema Registry as part of the EventMesh.
The Schema Registry is a central repository with RESTful interfaces for developers to define and register standard schemas. Addresses the problem of different data(event) format of producer and consumer.
What are the features to provide from Schema Registry:
1. Persist and share version history of all schemas(schemas lifecycle management) and verify schema compatibility.
2. Supports Avro, JSON, and Protobuf formats serialization/deserialization
What are the high level design to achieve the features
1. Defines schema registry data models(subject, schema, version, compatibility) and schema REST API standards based on the open-source OpenSchema specifications.
2. The eventmesh-database-api abstract module abstracts the CRUD capability of the schema registry into this module.
3. Eventmesh-database-h2 contains the actual implementation. I proposed to leverage using h2 database and use JDBC API for querying with h2 database in eventmesh.
The followings are high-level design diagram:
An example of Backward Compatibility from OpenSchema Specification
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