| /* |
| * Copyright 2015-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.ImmutableMap; |
| import com.google.common.collect.SetMultimap; |
| 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.onlab.util.Identifier; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.intent.FlowRuleIntent; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.IntentCompiler; |
| import org.onosproject.net.intent.LinkCollectionIntent; |
| import org.onosproject.net.intent.constraint.EncapsulationConstraint; |
| import org.onosproject.net.resource.ResourceService; |
| import org.onosproject.net.resource.impl.LabelAllocator; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| |
| /** |
| * Compiler to produce flow rules from link collections. |
| */ |
| @Component(immediate = true) |
| public class LinkCollectionIntentCompiler |
| extends LinkCollectionCompiler<FlowRule> |
| implements IntentCompiler<LinkCollectionIntent> { |
| |
| private static Logger log = LoggerFactory.getLogger(LinkCollectionIntentCompiler.class); |
| |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected IntentConfigurableRegistrator registrator; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ResourceService resourceService; |
| |
| private ApplicationId appId; |
| |
| @Activate |
| public void activate() { |
| appId = coreService.registerApplication("org.onosproject.net.intent"); |
| registrator.registerCompiler(LinkCollectionIntent.class, this, false); |
| if (labelAllocator == null) { |
| labelAllocator = new LabelAllocator(resourceService); |
| } |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| registrator.unregisterCompiler(LinkCollectionIntent.class, false); |
| } |
| |
| @Override |
| public List<Intent> compile(LinkCollectionIntent intent, List<Intent> installable) { |
| |
| SetMultimap<DeviceId, PortNumber> inputPorts = HashMultimap.create(); |
| SetMultimap<DeviceId, PortNumber> outputPorts = HashMultimap.create(); |
| Map<ConnectPoint, Identifier<?>> labels = ImmutableMap.of(); |
| |
| Optional<EncapsulationConstraint> encapConstraint = this.getIntentEncapConstraint(intent); |
| |
| computePorts(intent, inputPorts, outputPorts); |
| |
| if (encapConstraint.isPresent()) { |
| labels = labelAllocator.assignLabelToPorts(intent.links(), |
| intent.id(), |
| encapConstraint.get().encapType()); |
| } |
| |
| List<FlowRule> rules = new ArrayList<>(); |
| for (DeviceId deviceId: outputPorts.keySet()) { |
| rules.addAll(createRules( |
| intent, |
| deviceId, |
| inputPorts.get(deviceId), |
| outputPorts.get(deviceId), |
| labels) |
| ); |
| } |
| return Collections.singletonList(new FlowRuleIntent(appId, rules, intent.resources())); |
| } |
| |
| @Override |
| protected List<FlowRule> createRules(LinkCollectionIntent intent, |
| DeviceId deviceId, |
| Set<PortNumber> inPorts, |
| Set<PortNumber> outPorts, |
| Map<ConnectPoint, Identifier<?>> labels) { |
| |
| List<FlowRule> rules = new ArrayList<>(inPorts.size()); |
| /* |
| * Looking for the encapsulation constraint |
| */ |
| Optional<EncapsulationConstraint> encapConstraint = this.getIntentEncapConstraint(intent); |
| |
| inPorts.forEach(inport -> { |
| |
| ForwardingInstructions instructions = this.createForwardingInstruction( |
| encapConstraint, |
| intent, |
| inport, |
| outPorts, |
| deviceId, |
| labels |
| ); |
| |
| FlowRule rule = DefaultFlowRule.builder() |
| .forDevice(deviceId) |
| .withSelector(instructions.selector()) |
| .withTreatment(instructions.treatment()) |
| .withPriority(intent.priority()) |
| .fromApp(appId) |
| .makePermanent() |
| .build(); |
| rules.add(rule); |
| } |
| ); |
| |
| return rules; |
| } |
| } |