| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.isis.controller; |
| |
| import java.util.EnumSet; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Representation of ISIS router types. |
| */ |
| public enum IsisRouterType { |
| /** |
| * Represents ISIS L1 router. |
| */ |
| L1(1), |
| /** |
| * Represents ISIS L2 router. |
| */ |
| L2(2), |
| /** |
| * Represents ISIS L1/L2 router. |
| */ |
| L1L2(3); |
| // Reverse lookup table |
| private static final Map<Integer, IsisRouterType> LOOKUP = new HashMap<>(); |
| |
| // Populate the lookup table on loading time |
| static { |
| for (IsisRouterType isisRouterType : EnumSet.allOf(IsisRouterType.class)) { |
| LOOKUP.put(isisRouterType.value(), isisRouterType); |
| } |
| } |
| |
| private int value; |
| |
| /** |
| * Creates an instance of ISIS router type. |
| * |
| * @param value represents ISIS router type |
| */ |
| private IsisRouterType(int value) { |
| this.value = value; |
| } |
| |
| /** |
| * Gets the enum instance from type value - reverse lookup purpose. |
| * |
| * @param routerTypeValue router type value |
| * @return ISIS router type instance |
| */ |
| public static IsisRouterType get(int routerTypeValue) { |
| return LOOKUP.get(routerTypeValue); |
| } |
| |
| /** |
| * Gets the value representing router type. |
| * |
| * @return value represents router type |
| */ |
| public int value() { |
| return value; |
| } |
| } |