@Override
public void processUpdatedChanges(
YangInstanceIdentifier identifier, UnderlayItem updatedItem, String topologyId) {
LOG.trace("Processing updatedChanges");
for (TopologyStore ts : topoStoreProvider.getTopologyStores()) {
if (ts.getId().equals(topologyId)) {
LOG.debug("Updating overlay item");
UnderlayItem underlayItem = ts.getUnderlayItems().get(identifier);
Preconditions.checkNotNull(
underlayItem, "Updated underlay item not found in the Topology store");
underlayItem.setItem(updatedItem.getItem());
if (underlayItem.getCorrelationItem() == CorrelationItemEnum.Link) {
if (underlayItem instanceof ComputedLink && updatedItem instanceof ComputedLink) {
ComputedLink underlayLink = (ComputedLink) underlayItem;
ComputedLink updatedLink = (ComputedLink) updatedItem;
if (!matchTargetFields(underlayItem, updatedItem)
|| !underlayLink.getSrcNode().equals(updatedLink.getSrcNode())
|| !underlayLink.getDstNode().equals(updatedLink.getDstNode())) {
underlayLink.setLeafNodes(updatedLink.getLeafNodes());
underlayLink.setSrcNode(updatedLink.getSrcNode());
underlayLink.setDstNode(updatedLink.getDstNode());
if (underlayItem.getOverlayItem() != null) {
removeUnderlayItemFromOverlayItem(underlayItem);
}
checkForPossibleAggregationOfLinks(updatedLink, underlayLink);
} else if (underlayItem.getOverlayItem() != null) {
// in case that only Link value was changed
topologyManager.updateOverlayItem(underlayItem.getOverlayItem());
}
break;
}
} else {
// if Leaf Node was changed
if (!matchTargetFields(underlayItem, updatedItem)) {
underlayItem.setLeafNodes(updatedItem.getLeafNodes());
if (underlayItem.getOverlayItem() != null) {
removeUnderlayItemFromOverlayItem(underlayItem);
}
checkForPossibleAggregation(underlayItem, topologyId);
} else if (underlayItem.getOverlayItem() != null) {
// in case that only Node value was changed
topologyManager.updateOverlayItem(underlayItem.getOverlayItem());
}
break;
}
}
}
}
private void removeUnderlayItemFromOverlayItem(UnderlayItem itemToRemove) {
OverlayItem overlayItemIdentifier = itemToRemove.getOverlayItem();
if (null != overlayItemIdentifier) {
Queue<UnderlayItem> underlayItems = overlayItemIdentifier.getUnderlayItems();
underlayItems.remove(itemToRemove);
itemToRemove.setOverlayItem(null);
if (underlayItems.size() < getMinUnderlayItems()) {
LOG.debug("Removing overlay item");
for (UnderlayItem remainingNode : underlayItems) {
remainingNode.setOverlayItem(null);
}
topologyManager.removeOverlayItem(overlayItemIdentifier);
} else {
LOG.debug("Removing underlay item from overlay item");
topologyManager.updateOverlayItem(overlayItemIdentifier);
}
}
}
/**
* @param newItem item received from notification
* @param topoStoreItem item already stored in topostore
*/
private void aggregateItems(UnderlayItem newItem, UnderlayItem topoStoreItem) {
if (topoStoreItem.getOverlayItem() == null) {
LOG.debug("Creating new Logical Node");
// create new logical node
List<UnderlayItem> nodesToAggregate = new ArrayList<>();
nodesToAggregate.add(newItem);
nodesToAggregate.add(topoStoreItem);
OverlayItem overlayItem =
new OverlayItem(nodesToAggregate, topoStoreItem.getCorrelationItem());
topoStoreItem.setOverlayItem(overlayItem);
newItem.setOverlayItem(overlayItem);
topologyManager.addOverlayItem(overlayItem);
return;
}
LOG.debug("Adding physical node to existing Logical Node");
// add new physical node into existing logical node
OverlayItem overlayItem = topoStoreItem.getOverlayItem();
newItem.setOverlayItem(overlayItem);
overlayItem.addUnderlayItem(newItem);
topologyManager.updateOverlayItem(overlayItem);
}