hanyuzheng7 commented on code in PR #14570:
URL: https://github.com/apache/kafka/pull/14570#discussion_r1381981547
##########
streams/src/main/java/org/apache/kafka/streams/state/internals/MeteredTimestampedKeyValueStore.java:
##########
@@ -102,4 +139,232 @@ static class RawAndDeserializedValue<ValueType> {
this.value = value;
}
}
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public <R> QueryResult<R> query(final Query<R> query,
+ final PositionBound positionBound,
+ final QueryConfig config) {
+
+ final long start = time.nanoseconds();
+ final QueryResult<R> result;
+
+ final StoreQueryUtils.QueryHandler handler =
queryHandlers.get(query.getClass());
+ if (handler == null) {
+ result = wrapped().query(query, positionBound, config);
+ if (config.isCollectExecutionInfo()) {
+ result.addExecutionInfo(
+ "Handled in " + getClass() + " in " +
(time.nanoseconds() - start) + "ns");
+ }
+ } else {
+ result = (QueryResult<R>) handler.apply(
+ query,
+ positionBound,
+ config,
+ this
+ );
+ if (config.isCollectExecutionInfo()) {
+ result.addExecutionInfo(
+ "Handled in " + getClass() + " with serdes "
+ + serdes + " in " + (time.nanoseconds() -
start) + "ns");
+ }
+ }
+ return result;
+ }
+
+
+
+ @SuppressWarnings("unchecked")
+ protected <R> QueryResult<R> runTimestampedKeyQuery(final Query<R> query,
+ final PositionBound
positionBound,
+ final QueryConfig
config) {
+ final QueryResult<R> result;
+ final TimestampedKeyQuery<K, V> typedKeyQuery =
(TimestampedKeyQuery<K, V>) query;
+ final KeyQuery<Bytes, byte[]> rawKeyQuery =
+ KeyQuery.withKey(keyBytes(typedKeyQuery.key()));
+ final QueryResult<byte[]> rawResult =
+ wrapped().query(rawKeyQuery, positionBound, config);
+ if (rawResult.isSuccess()) {
+ final Function<byte[], ValueAndTimestamp<V>> deserializer =
getDeserializeValue(serdes, wrapped());
+ final ValueAndTimestamp<V> value =
deserializer.apply(rawResult.getResult());
Review Comment:
ok
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