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/*
* 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.resource.link.LinkResourceService;
/**
* 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 {
@Override
public double cost(Link link, LinkResourceService resourceService) {
return 1;
}
@Override
public boolean validate(Path path, LinkResourceService resourceService) {
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;
}
}
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