Yuta HIGUCHI | 76609cd | 2016-09-16 15:25:13 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Yuta HIGUCHI | 76609cd | 2016-09-16 15:25:13 -0700 | [diff] [blame] | 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 | */ |
| 16 | package org.onosproject.net.intent.constraint; |
| 17 | |
| 18 | import org.onosproject.net.AnnotationKeys; |
| 19 | import org.onosproject.net.Link; |
| 20 | import org.onosproject.net.intent.ResourceContext; |
| 21 | |
| 22 | /** |
| 23 | * Constraint to request using only {@link AnnotationKeys#PROTECTED protected} |
| 24 | * Links. |
| 25 | */ |
| 26 | public class ProtectedConstraint extends BooleanConstraint { |
| 27 | |
| 28 | private static final ProtectedConstraint PROTECTED_CONSTRAINT |
| 29 | = new ProtectedConstraint(); |
| 30 | |
| 31 | /** |
| 32 | * Returns {@link ProtectedConstraint} instance. |
| 33 | * |
| 34 | * @return {@link ProtectedConstraint} instance |
| 35 | */ |
| 36 | public static ProtectedConstraint useProtectedLink() { |
| 37 | return PROTECTED_CONSTRAINT; |
| 38 | } |
| 39 | |
| 40 | @Override |
| 41 | public boolean isValid(Link link, ResourceContext context) { |
| 42 | return link.annotations().keys().contains(AnnotationKeys.PROTECTED); |
| 43 | } |
| 44 | |
| 45 | @Override |
| 46 | public String toString() { |
| 47 | return "Protected"; |
| 48 | } |
| 49 | |
| 50 | } |