| /* |
| * Copyright 2016 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.drivers.lumentum; |
| |
| import org.apache.commons.lang3.tuple.Pair; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.net.flow.FlowId; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Simple implementation of a local flow rule cache that stores the flow ID and priority. |
| * |
| * Use this if you have a device that does not allow you to store these fields. |
| * |
| * WARNING: Be aware that this implementation makes no attempt to use a distributed store |
| * for the cache, so do not rely on it to support fail-over in multi-instance deployments. |
| * If the instance which holds the cache goes down, you *will* be in trouble. |
| */ |
| @Component(immediate = true, enabled = true) |
| @Service |
| public class DefaultCrossConnectCache implements CrossConnectCache { |
| private final Map<Integer, Pair<FlowId, Integer>> cache = new HashMap<>(); |
| |
| @Override |
| public Pair<FlowId, Integer> get(int hash) { |
| return cache.get(hash); |
| } |
| |
| @Override |
| public void set(int hash, FlowId flowId, int priority) { |
| cache.put(hash, Pair.of(flowId, priority)); |
| } |
| |
| @Override |
| public void remove(int hash) { |
| cache.remove(hash); |
| } |
| } |