Working on simple topology manager and provider
diff --git a/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleTopologyManager.java b/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleTopologyManager.java
index 4188cac..33b2a18 100644
--- a/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleTopologyManager.java
+++ b/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleTopologyManager.java
@@ -153,6 +153,9 @@
public void topologyChanged(TopologyDescription topoDescription,
List<Event> reasons) {
checkNotNull(topoDescription, "Topology description cannot be null");
+
+ log.info("Topology changed due to: {}", // to be removed soon
+ reasons == null ? "initial compute" : reasons);
TopologyEvent event = store.updateTopology(topoDescription, reasons);
if (event != null) {
log.info("Topology changed due to: {}",