Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 16 | package org.onosproject.net; |
tom | f5d85d4 | 2014-10-02 05:27:56 -0700 | [diff] [blame] | 17 | |
| 18 | import static com.google.common.base.Preconditions.checkArgument; |
| 19 | |
| 20 | /** |
| 21 | * Base implementation of an annotated model description. |
| 22 | */ |
tom | 5a9383a | 2014-10-02 07:33:52 -0700 | [diff] [blame] | 23 | public abstract class AbstractDescription implements Annotated { |
tom | f5d85d4 | 2014-10-02 05:27:56 -0700 | [diff] [blame] | 24 | |
| 25 | private static final SparseAnnotations EMPTY = DefaultAnnotations.builder().build(); |
| 26 | |
| 27 | private final SparseAnnotations annotations; |
| 28 | |
| 29 | // For serialization |
| 30 | protected AbstractDescription() { |
| 31 | this.annotations = null; |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * Creates a new entity, annotated with the specified annotations. |
| 36 | * |
| 37 | * @param annotations optional key/value annotations map |
| 38 | */ |
| 39 | protected AbstractDescription(SparseAnnotations... annotations) { |
| 40 | checkArgument(annotations.length <= 1, "Only one set of annotations is expected"); |
| 41 | this.annotations = annotations.length == 1 ? annotations[0] : EMPTY; |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public SparseAnnotations annotations() { |
| 46 | return annotations; |
| 47 | } |
| 48 | |
| 49 | } |