| /* |
| * Copyright 2017-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.net.intent.constraint; |
| |
| import org.onosproject.net.intent.ConnectivityIntent; |
| import org.onosproject.net.intent.Intent; |
| |
| /** |
| * Constraint to request a non-disruptive intent reallocation. |
| */ |
| public final class NonDisruptiveConstraint extends MarkerConstraint { |
| |
| private static final NonDisruptiveConstraint NON_DISRUPTIVE_CONSTRAINT = new NonDisruptiveConstraint(); |
| |
| protected NonDisruptiveConstraint() { |
| } |
| |
| /** |
| * Determines whether the intent requires a non-disruptive reallocation. |
| * |
| * @param intent intent to be inspected |
| * @return whether the intent has a NonDisruptiveConstraint |
| */ |
| public static boolean requireNonDisruptive(Intent intent) { |
| if (intent instanceof ConnectivityIntent) { |
| ConnectivityIntent connectivityIntent = (ConnectivityIntent) intent; |
| return connectivityIntent.constraints().stream() |
| .anyMatch(p -> p instanceof NonDisruptiveConstraint); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the nonDisruptiveConstraint. |
| * |
| * @return non-disruptive constraint |
| */ |
| public static NonDisruptiveConstraint nonDisruptive() { |
| return NON_DISRUPTIVE_CONSTRAINT; |
| } |
| |
| @Override |
| public String toString() { |
| return "Non-disruptive reallocation required"; |
| } |
| } |