kecona commented on code in PR #21311:
URL: https://github.com/apache/pulsar/pull/21311#discussion_r1349478216
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pip/pip-304.md:
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@@ -0,0 +1,54 @@
+# Motivation
+
+We have a scenario that uses the
`org.apache.pulsar.broker.intercept.BrokerInterceptor#messageProduced`, and
need to
+obtain the message metadata, but the
`org.apache.pulsar.broker.service.Topic.PublishContext` doesn't provide this
data.
+
+# Goals
+
+## In Scope
+
+Make `org.apache.pulsar.broker.service.Topic.PublishContext` to provide the
message metadata.
+
+# Detailed Design
+
+## Design & Implementation Details
+
+1. Add `getHeaderAndPayload()` to
`org.apache.pulsar.broker.service.Topic.PublishContext` to obtain the message
metadata:
+
+```java
+public interface Topic {
+ interface PublishContext {
+ default ByteBuf getHeaderAndPayload() {
Review Comment:
Or return `MessageMetadata`?
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