public Collection<String> fullSourceTopicNamesForTopology(final String topologyName) {
        Objects.requireNonNull(topologyName, "topology name must not be null");
        return lookupBuilderForNamedTopology(topologyName).fullSourceTopicNames();
    }
@return true iff any of the topologies have no local (aka non-global) topology
streams/src/main/java/org/apache/kafka/streams/processor/internals/TopologyMetadata.java