| /* |
| * 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.net.region; |
| |
| import org.onlab.util.Identifier; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| /** |
| * Region identifier backed by a string value. |
| */ |
| public final class RegionId extends Identifier<String> { |
| |
| private static final int REGION_MAX_LENGTH = 1024; |
| |
| /** |
| * Constructor for serialization. |
| */ |
| private RegionId() { |
| super(); |
| } |
| |
| /** |
| * Constructs the ID corresponding to a given string value. |
| * |
| * @param value the underlying value of this ID |
| */ |
| private RegionId(String value) { |
| super(value); |
| if (value != null) { |
| checkArgument(value.length() <= REGION_MAX_LENGTH, "value exceeds maximum length " + REGION_MAX_LENGTH); |
| } |
| } |
| |
| /** |
| * Creates a new region identifier. |
| * |
| * @param id backing identifier value |
| * @return region identifier |
| */ |
| public static RegionId regionId(String id) { |
| return new RegionId(id); |
| } |
| |
| } |