@Override
public FlowRuleEvent addOrUpdateFlowRule(FlowEntry rule) {
NodeId master = mastershipService.getMasterFor(rule.deviceId());
if (Objects.equal(local, master)) {
return addOrUpdateFlowRuleInternal(rule);
}
log.warn("Tried to update FlowRule {} state," + " while the Node was not the master.", rule);
return null;
}
public void add(FlowEntry rule) {
getFlowEntriesInternal(rule.deviceId(), rule.id()).add((StoredFlowEntry) rule);
lastUpdateTimes.put(rule.deviceId(), System.currentTimeMillis());
}
private FlowRuleEvent removeFlowRuleInternal(FlowEntry rule) {
final DeviceId deviceId = rule.deviceId();
// This is where one could mark a rule as removed and still keep it in the store.
final boolean removed = flowTable.remove(deviceId, rule); // flowEntries.remove(deviceId, rule);
return removed ? new FlowRuleEvent(RULE_REMOVED, rule) : null;
}
@Override
public FlowRuleEvent removeFlowRule(FlowEntry rule) {
final DeviceId deviceId = rule.deviceId();
NodeId master = mastershipService.getMasterFor(deviceId);
if (Objects.equal(local, master)) {
// bypass and handle it locally
return removeFlowRuleInternal(rule);
}
if (master == null) {
log.warn("Failed to removeFlowRule: No master for {}", deviceId);
// TODO: revisit if this should be null (="no-op") or Exception
return null;
}
log.trace(
"Forwarding removeFlowRule to {}, which is the master for device {}", master, deviceId);
return Futures.get(
clusterCommunicator.sendAndReceive(
rule, REMOVE_FLOW_ENTRY, SERIALIZER::encode, SERIALIZER::decode, master),
FLOW_RULE_STORE_TIMEOUT_MILLIS,
TimeUnit.MILLISECONDS,
RuntimeException.class);
}
