aloyszhang commented on a change in pull request #9091:
URL: https://github.com/apache/pulsar/pull/9091#discussion_r550010559
##########
File path:
pulsar-broker/src/main/java/org/apache/pulsar/broker/intercept/ManagedLedgerInterceptorImpl.java
##########
@@ -83,9 +83,9 @@ public void onManagedLedgerPropertiesInitialize(Map<String,
String> propertiesMa
public void onManagedLedgerLastLedgerInitialize(String name, LedgerHandle
lh) {
try {
for (BrokerEntryMetadataInterceptor interceptor :
brokerEntryMetadataInterceptors) {
- if (interceptor instanceof AppendIndexMetadataInterceptor) {
+ if (interceptor instanceof AppendIndexMetadataInterceptor &&
lh.getLastAddConfirmed() >= 0) {
Review comment:
Agree with you that instanceof is not a good practice if we have a
better choice.
There are two class `AppendIndexMetadataInterceptor` and
`AppendBrokerTimestampMetadataInterceptor` implement
`BrokerEntryMetadataInterceptor`.
If using polymorphism and the interceptor is a
`AppendBrokerTimestampMetadataInterceptor` whose `recoveryIndexGenerator`
method do nothing like
```java
public void recoveryIndexGenerator(long index) {
// do nothing.
}
```
, we still meed to deserialize the `BrokerEntryMetadata` from entry.
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