| /* |
| * Copyright 2016-present 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.impl.compiler; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.SetMultimap; |
| import com.google.common.collect.Sets; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| import org.onosproject.net.flowobjective.DefaultNextObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.NextObjective; |
| import org.onosproject.net.flowobjective.Objective; |
| import org.onosproject.net.intent.FlowObjectiveIntent; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.IntentCompiler; |
| import org.onosproject.net.intent.LinkCollectionIntent; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Compiler to produce flow objectives from link collections. |
| */ |
| @Component(immediate = true) |
| public class LinkCollectionIntentFlowObjectiveCompiler |
| extends LinkCollectionCompiler<Objective> |
| implements IntentCompiler<LinkCollectionIntent> { |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected IntentConfigurableRegistrator registrator; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowObjectiveService flowObjectiveService; |
| |
| private ApplicationId appId; |
| |
| @Activate |
| public void activate() { |
| appId = coreService.registerApplication("org.onosproject.net.intent"); |
| registrator.registerCompiler(LinkCollectionIntent.class, this, true); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| registrator.unregisterCompiler(LinkCollectionIntent.class, true); |
| } |
| |
| @Override |
| public List<Intent> compile(LinkCollectionIntent intent, List<Intent> installable) { |
| |
| SetMultimap<DeviceId, PortNumber> inputPorts = HashMultimap.create(); |
| SetMultimap<DeviceId, PortNumber> outputPorts = HashMultimap.create(); |
| |
| computePorts(intent, inputPorts, outputPorts); |
| |
| List<Objective> objectives = new ArrayList<>(); |
| List<DeviceId> devices = new ArrayList<>(); |
| for (DeviceId deviceId: outputPorts.keys()) { |
| List<Objective> deviceObjectives = |
| createRules(intent, |
| deviceId, |
| inputPorts.get(deviceId), |
| outputPorts.get(deviceId)); |
| deviceObjectives.forEach(objective -> { |
| objectives.add(objective); |
| devices.add(deviceId); |
| }); |
| } |
| return Collections.singletonList( |
| new FlowObjectiveIntent(appId, devices, objectives, intent.resources())); |
| } |
| |
| @Override |
| protected List<Objective> createRules(LinkCollectionIntent intent, DeviceId deviceId, |
| Set<PortNumber> inPorts, Set<PortNumber> outPorts) { |
| |
| Set<PortNumber> ingressPorts = Sets.newHashSet(); |
| Set<PortNumber> egressPorts = Sets.newHashSet(); |
| |
| computePorts(intent, deviceId, ingressPorts, egressPorts); |
| |
| List<Objective> objectives = new ArrayList<>(inPorts.size()); |
| Set<PortNumber> copyIngressPorts = ImmutableSet.copyOf(ingressPorts); |
| Set<PortNumber> copyEgressPorts = ImmutableSet.copyOf(egressPorts); |
| |
| inPorts.forEach(inport -> { |
| ForwardingInstructions instructions = this.createForwardingInstructions(intent, |
| inport, |
| deviceId, |
| outPorts, |
| copyIngressPorts, |
| copyEgressPorts); |
| |
| NextObjective nextObjective = DefaultNextObjective.builder() |
| .withId(flowObjectiveService.allocateNextId()) |
| .addTreatment(instructions.treatment()) |
| .withType(NextObjective.Type.SIMPLE) |
| .fromApp(appId) |
| .makePermanent().add(); |
| objectives.add(nextObjective); |
| |
| objectives.add(DefaultForwardingObjective.builder() |
| .withSelector(instructions.selector()) |
| .nextStep(nextObjective.id()) |
| .withPriority(intent.priority()) |
| .fromApp(appId) |
| .makePermanent() |
| .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| .add()); |
| } |
| ); |
| |
| return objectives; |
| } |
| |
| } |