Merge "Fix clustering versions"

[controller.git] / opendaylight / topologymanager / implementation / src / main / java / org / opendaylight / controller / topologymanager / internal / TopologyManagerImpl.java

diff --git a/opendaylight/topologymanager/implementation/src/main/java/org/opendaylight/controller/topologymanager/internal/TopologyManagerImpl.java b/opendaylight/topologymanager/implementation/src/main/java/org/opendaylight/controller/topologymanager/internal/TopologyManagerImpl.java
index 3618547ac8c97f1ef80b1ccb179597c520e59872..ff1c026a344d74efa5aa1f1b57e05e60775cd1a4 100644 (file)
--- a/opendaylight/topologymanager/implementation/src/main/java/org/opendaylight/controller/topologymanager/internal/TopologyManagerImpl.java
+++ b/opendaylight/topologymanager/implementation/src/main/java/org/opendaylight/controller/topologymanager/internal/TopologyManagerImpl.java
@@ -522,7 +522,7 @@ public class TopologyManagerImpl implements
     }
 
     @Override
-    public void updateHostLink(NodeConnector port, Host h, UpdateType t, Set<Property> props) {
+    public synchronized void updateHostLink(NodeConnector port, Host h, UpdateType t, Set<Property> props) {
 
         // Clone the property set in case non null else just
         // create an empty one. Caches allocated via infinispan
@@ -573,6 +573,13 @@ public class TopologyManagerImpl implements
         switch (type) {
         case ADDED:
 
+
+            if (this.edgesDB.containsKey(e)) {
+                // Avoid redundant updates (e.g. cluster switch-over) as notifications trigger expensive tasks
+                log.trace("Skipping redundant edge addition: {}", e);
+                return null;
+            }
+
             // Make sure the props are non-null or create a copy
             if (props == null) {
                 props = new HashSet<Property>();
@@ -580,19 +587,6 @@ public class TopologyManagerImpl implements
                 props = new HashSet<Property>(props);
             }
 
-            Set<Property> currentProps = this.edgesDB.get(e);
-            if (currentProps != null) {
-
-                if (currentProps.equals(props)) {
-                    // Avoid redundant updates as notifications trigger expensive tasks
-                    log.trace("Skipping redundant edge addition: {}", e);
-                    return null;
-                }
-
-                // In case of node switch-over to a different cluster controller,
-                // let's retain edge props (e.g. creation time)
-                props.addAll(currentProps);
-            }
 
             // Ensure that head node connector exists
             if (!headNodeConnectorExist(e)) {
@@ -654,10 +648,9 @@ public class TopologyManagerImpl implements
         case CHANGED:
             Set<Property> oldProps = this.edgesDB.get(e);
 
-            // When property changes lets make sure we can change it
+            // When property(s) changes lets make sure we can change it
             // all except the creation time stamp because that should
-            // be changed only when the edge is destroyed and created
-            // again
+            // be set only when the edge is created
             TimeStamp timeStamp = null;
             for (Property prop : oldProps) {
                 if (prop instanceof TimeStamp) {