Support protobuf native schema

[shibd]

Fixes #

Master Issue: #

Motivation

Support protobuf native schema

Modifications

1. Support protobuf native schema
2. Provide tools to help the user create schema info for the protobuf native schema.

Verifying this change

• Added protobuf schema end-to-end test

Documentation

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• doc-not-needed
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• doc
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[Copilot]

Pull request overview

Adds first-class support for Pulsar Protobuf Native schema in the Node client by exposing helper utilities to generate the required schema info from protobufjs descriptor output, updating the native binding schema plumbing, and adding an end-to-end test validating produce/consume behavior.

Changes:

• Add ProtobufNativeSchema helper module (root creation from reflection JSON + schema info generation using FileDescriptorSet).
• Extend schema type handling in the native binding to support ProtobufNative.
• Add an end-to-end Jest test (with generated protobuf artifacts) and include protobufjs as a dependency.

Reviewed changes

Copilot reviewed 7 out of 13 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/SchemaInfo.h	Switch schema representation to Pulsar C++ SchemaType + std::map properties.
src/SchemaInfo.cc	Add ProtobufNative mapping and set schema on producer/consumer configs via C++ API.
src/ProtobufNativeSchema.js	New helper utilities to build Protobuf Native schema info from protobufjs.
index.js	Export ProtobufNativeSchema from the main module.
index.d.ts	Add ProtobufNativeSchema typings and extend SchemaType union.
package.json	Add protobufjs dependency.
yarn.lock / package-lock.json	Lockfile updates for protobufjs (and transitive deps).
.eslintignore	Ignore generated protobuf artifacts under tests.
tests/protobuf_native_schema.test.js	New end-to-end test for Protobuf Native schema produce/consume.
tests/protobuf_schema/generated/*	Generated protobuf JS/TS artifacts + reflection JSON used by the test.

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[BewareMyPower]

Could you verify if it can work with Java client? You can fork https://github.com/BewareMyPower/pulsar-protobuf-native-demo to test the latest implementation.

[shibd]

Could you verify if it can work with Java client? You can fork https://github.com/BewareMyPower/pulsar-protobuf-native-demo to test the latest implementation.

Sure, I verified the following case:

1. A Node.js client sending messages and a Java client consuming them.
2. A Java client sending messages and a Node.js client consuming them.

After this PR is released, I’ll prepare a repository like the one you mentioned so everyone can validate it more easily.