@Override
public void update(Collection<FibUpdate> updates, Collection<FibUpdate> withdraws) {
int submitCount = 0, withdrawCount = 0;
//
// NOTE: Semantically, we MUST withdraw existing intents before
// submitting new intents.
//
synchronized (this) {
MultiPointToSinglePointIntent intent;
//
// Prepare the Intent batch operations for the intents to withdraw
//
for (FibUpdate withdraw : withdraws) {
checkArgument(
withdraw.type() == FibUpdate.Type.DELETE,
"FibUpdate with wrong type in withdraws list");
IpPrefix prefix = withdraw.entry().prefix();
intent = routeIntents.remove(prefix);
if (intent == null) {
log.trace("SDN-IP No intent in routeIntents to delete " + "for prefix: {}", prefix);
continue;
}
intentSynchronizer.withdraw(intent);
withdrawCount++;
}
//
// Prepare the Intent batch operations for the intents to submit
//
for (FibUpdate update : updates) {
checkArgument(
update.type() == FibUpdate.Type.UPDATE, "FibUpdate with wrong type in updates list");
IpPrefix prefix = update.entry().prefix();
intent =
generateRouteIntent(prefix, update.entry().nextHopIp(), update.entry().nextHopMac());
if (intent == null) {
// This preserves the old semantics - if an intent can't be
// generated, we don't do anything with that prefix. But
// perhaps we should withdraw the old intent anyway?
continue;
}
routeIntents.put(prefix, intent);
intentSynchronizer.submit(intent);
submitCount++;
}
log.debug(
"SDN-IP submitted {}/{}, withdrew = {}/{}",
submitCount,
updates.size(),
withdrawCount,
withdraws.size());
}
}
/**
* Tests whether peer connectivity manager can set up correct BGP and ICMP intents according to
* specific configuration.
*
* <p>Two tricky cases included in the configuration are: 2 peers on a same switch port, peer on
* the same switch with BGPd.
*/
@Test
public void testConnectionSetup() {
reset(intentSynchronizer);
// Setup the expected intents
for (Intent intent : intentList) {
intentSynchronizer.submit(eqExceptId(intent));
}
replay(intentSynchronizer);
// Running the interface to be tested.
peerConnectivityManager.start();
verify(intentSynchronizer);
}