Antonio Marsico | 4f68ec9 | 2017-03-09 11:16:32 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 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.intent.ConnectivityIntent; |
| 19 | import org.onosproject.net.intent.Intent; |
| 20 | |
| 21 | /** |
| 22 | * Constraint to request a non-disruptive intent reallocation. |
| 23 | */ |
| 24 | public final class NonDisruptiveConstraint extends MarkerConstraint { |
| 25 | |
| 26 | private static final NonDisruptiveConstraint NON_DISRUPTIVE_CONSTRAINT = new NonDisruptiveConstraint(); |
| 27 | |
| 28 | protected NonDisruptiveConstraint() { |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Determines whether the intent requires a non-disruptive reallocation. |
| 33 | * |
| 34 | * @param intent intent to be inspected |
| 35 | * @return whether the intent has a NonDisruptiveConstraint |
| 36 | */ |
| 37 | public static boolean requireNonDisruptive(Intent intent) { |
| 38 | if (intent instanceof ConnectivityIntent) { |
| 39 | ConnectivityIntent connectivityIntent = (ConnectivityIntent) intent; |
| 40 | return connectivityIntent.constraints().stream() |
| 41 | .anyMatch(p -> p instanceof NonDisruptiveConstraint); |
| 42 | } |
| 43 | return false; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Returns the nonDisruptiveConstraint. |
| 48 | * |
| 49 | * @return non-disruptive constraint |
| 50 | */ |
| 51 | public static NonDisruptiveConstraint nonDisruptive() { |
| 52 | return NON_DISRUPTIVE_CONSTRAINT; |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public String toString() { |
| 57 | return "Non-disruptive reallocation required"; |
| 58 | } |
| 59 | } |