| /* |
| * Copyright 2014-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.cluster; |
| |
| import org.onlab.util.Identifier; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| /** |
| * Controller cluster identity. |
| */ |
| public final class NodeId extends Identifier<String> implements Comparable<NodeId> { |
| |
| private static final int ID_MAX_LENGTH = 1024; |
| |
| /** |
| * Constructor for serialization. |
| */ |
| private NodeId() { |
| super(""); |
| } |
| |
| /** |
| * Creates a new cluster node identifier from the specified string. |
| * |
| * @param id string identifier |
| */ |
| public NodeId(String id) { |
| super(id); |
| checkArgument(id.length() <= ID_MAX_LENGTH, "id exceeds maximum length " + ID_MAX_LENGTH); |
| } |
| |
| /** |
| * Creates a new cluster node identifier from the specified string. |
| * |
| * @param id string identifier |
| * @return node id |
| */ |
| public static NodeId nodeId(String id) { |
| return new NodeId(id); |
| } |
| |
| @Override |
| public int compareTo(NodeId that) { |
| return identifier.compareTo(that.identifier); |
| } |
| } |