public synchronized Optional<NamedTopology> getTopologyByName(final String name) {
        return Optional.ofNullable(topologyMetadata.lookupBuilderForNamedTopology(name)).map(InternalTopologyBuilder::namedTopology);
    }
@return the NamedTopology for the specific name, or Optional.empty() if the application has no NamedTopology of that name
streams/src/main/java/org/apache/kafka/streams/processor/internals/namedtopology/KafkaStreamsNamedTopologyWrapper.java