| /* |
| * Copyright 2015-present 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.incubator.net.faultmanagement.alarm; |
| |
| import com.google.common.annotations.Beta; |
| import org.onlab.util.Identifier; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| /** |
| * Alarm identifier suitable as an external key. |
| * <p> |
| * This class is immutable.</p> |
| */ |
| @Beta |
| public final class AlarmId extends Identifier<Long> { |
| |
| public static final AlarmId NONE = new AlarmId(); |
| |
| /** |
| * Instantiates a new Alarm id. |
| * |
| * @param id the id |
| */ |
| private AlarmId(long id) { |
| super(id); |
| checkArgument(id != 0L, "id must be non-zero"); |
| } |
| |
| private AlarmId() { |
| super(0L); |
| } |
| |
| /** |
| * Creates an alarm identifier from the specified long representation. |
| * |
| * @param value long value |
| * @return intent identifier |
| */ |
| public static AlarmId alarmId(long value) { |
| return new AlarmId(value); |
| } |
| |
| /** |
| * Returns the backing integer index. |
| * |
| * @return backing integer index |
| */ |
| public long fingerprint() { |
| return identifier; |
| } |
| } |