| /* |
| * Copyright 2015 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.net.intent.constraint; |
| |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Path; |
| import org.onosproject.net.intent.ConnectivityIntent; |
| import org.onosproject.net.intent.Constraint; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.ResourceContext; |
| |
| /** |
| * A constraint that allows intents that can only be partially compiled |
| * (i.e. MultiPointToSinglePointIntent or SinglePointToMultiPointIntent) |
| * to be installed when some endpoints or paths are not found. |
| */ |
| public class PartialFailureConstraint implements Constraint { |
| // doesn't use LinkResourceService |
| @Override |
| public double cost(Link link, ResourceContext context) { |
| return 1; |
| } |
| |
| // doesn't use LinkResourceService |
| @Override |
| public boolean validate(Path path, ResourceContext context) { |
| return true; |
| } |
| |
| public static boolean intentAllowsPartialFailure(Intent intent) { |
| if (intent instanceof ConnectivityIntent) { |
| ConnectivityIntent connectivityIntent = (ConnectivityIntent) intent; |
| return connectivityIntent.constraints().stream() |
| .anyMatch(c -> c instanceof PartialFailureConstraint); |
| } |
| return false; |
| } |
| } |