| /* |
| * Copyright 2014 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; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| 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.ConnectPoint; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleBatchEntry; |
| import org.onosproject.net.flow.FlowRuleBatchEntry.FlowRuleOperation; |
| import org.onosproject.net.flow.FlowRuleBatchOperation; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.intent.IntentExtensionService; |
| import org.onosproject.net.intent.IntentInstaller; |
| import org.onosproject.net.intent.LinkCollectionIntent; |
| import org.onosproject.net.intent.PathIntent; |
| |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Installer for {@link org.onosproject.net.intent.LinkCollectionIntent} path |
| * segment intents. |
| */ |
| @Component(immediate = true) |
| public class LinkCollectionIntentInstaller |
| implements IntentInstaller<LinkCollectionIntent> { |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected IntentExtensionService intentManager; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| private ApplicationId appId; |
| |
| @Activate |
| public void activate() { |
| appId = coreService.registerApplication("org.onosproject.net.intent"); |
| intentManager.registerInstaller(LinkCollectionIntent.class, this); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| intentManager.unregisterInstaller(PathIntent.class); |
| } |
| |
| @Override |
| public List<FlowRuleBatchOperation> install(LinkCollectionIntent intent) { |
| Map<DeviceId, Set<PortNumber>> inputMap = new HashMap<DeviceId, Set<PortNumber>>(); |
| Map<DeviceId, Set<PortNumber>> outputMap = new HashMap<DeviceId, Set<PortNumber>>(); |
| List<FlowRuleBatchEntry> rules = Lists.newLinkedList(); |
| |
| for (Link link : intent.links()) { |
| if (inputMap.get(link.dst().deviceId()) == null) { |
| inputMap.put(link.dst().deviceId(), new HashSet<PortNumber>()); |
| } |
| inputMap.get(link.dst().deviceId()).add(link.dst().port()); |
| |
| if (outputMap.get(link.src().deviceId()) == null) { |
| outputMap.put(link.src().deviceId(), new HashSet<PortNumber>()); |
| } |
| outputMap.get(link.src().deviceId()).add(link.src().port()); |
| |
| } |
| |
| for (ConnectPoint ingressPoint : intent.ingressPoints()) { |
| if (inputMap.get(ingressPoint.deviceId()) == null) { |
| inputMap |
| .put(ingressPoint.deviceId(), new HashSet<PortNumber>()); |
| } |
| inputMap.get(ingressPoint.deviceId()).add(ingressPoint.port()); |
| |
| } |
| |
| for (ConnectPoint egressPoint : intent.egressPoints()) { |
| if (outputMap.get(egressPoint.deviceId()) == null) { |
| outputMap |
| .put(egressPoint.deviceId(), new HashSet<PortNumber>()); |
| } |
| outputMap.get(egressPoint.deviceId()).add(egressPoint.port()); |
| |
| } |
| |
| for (Entry<DeviceId, Set<PortNumber>> entry : outputMap.entrySet()) { |
| Set<PortNumber> ingressPoints = inputMap.get(entry.getKey()); |
| rules.addAll(createBatchEntries(FlowRuleOperation.ADD, intent, |
| entry.getKey(), |
| ingressPoints, |
| entry.getValue())); |
| } |
| |
| return Lists.newArrayList(new FlowRuleBatchOperation(rules)); |
| } |
| |
| @Override |
| public List<FlowRuleBatchOperation> uninstall(LinkCollectionIntent intent) { |
| Map<DeviceId, Set<PortNumber>> inputMap = new HashMap<DeviceId, Set<PortNumber>>(); |
| Map<DeviceId, Set<PortNumber>> outputMap = new HashMap<DeviceId, Set<PortNumber>>(); |
| List<FlowRuleBatchEntry> rules = Lists.newLinkedList(); |
| |
| for (Link link : intent.links()) { |
| if (inputMap.get(link.dst().deviceId()) == null) { |
| inputMap.put(link.dst().deviceId(), new HashSet<PortNumber>()); |
| } |
| inputMap.get(link.dst().deviceId()).add(link.dst().port()); |
| |
| if (outputMap.get(link.src().deviceId()) == null) { |
| outputMap.put(link.src().deviceId(), new HashSet<PortNumber>()); |
| } |
| outputMap.get(link.src().deviceId()).add(link.src().port()); |
| } |
| |
| for (ConnectPoint ingressPoint : intent.ingressPoints()) { |
| if (inputMap.get(ingressPoint.deviceId()) == null) { |
| inputMap |
| .put(ingressPoint.deviceId(), new HashSet<PortNumber>()); |
| } |
| inputMap.get(ingressPoint.deviceId()).add(ingressPoint.port()); |
| |
| } |
| |
| for (ConnectPoint egressPoint : intent.egressPoints()) { |
| if (outputMap.get(egressPoint.deviceId()) == null) { |
| outputMap |
| .put(egressPoint.deviceId(), new HashSet<PortNumber>()); |
| } |
| outputMap.get(egressPoint.deviceId()).add(egressPoint.port()); |
| } |
| |
| for (Entry<DeviceId, Set<PortNumber>> entry : outputMap.entrySet()) { |
| Set<PortNumber> ingressPoints = inputMap.get(entry.getKey()); |
| rules.addAll(createBatchEntries(FlowRuleOperation.REMOVE, intent, |
| entry.getKey(), |
| ingressPoints, |
| entry.getValue())); |
| } |
| |
| return Lists.newArrayList(new FlowRuleBatchOperation(rules)); |
| } |
| |
| @Override |
| public List<FlowRuleBatchOperation> replace(LinkCollectionIntent oldIntent, |
| LinkCollectionIntent newIntent) { |
| List<FlowRuleBatchOperation> batches = Lists.newArrayList(); |
| batches.addAll(uninstall(oldIntent)); |
| batches.addAll(install(newIntent)); |
| return batches; |
| } |
| |
| /** |
| * Creates a collection of FlowRuleBatchEntry based on the provided |
| * parameters. |
| * |
| * @param operation the FlowRuleOperation to use |
| * @param intent the link collection intent |
| * @param deviceId the device ID for the flow rule |
| * @param inPorts the logical input ports of the flow rule |
| * @param outPorts the output ports of the flow rule |
| * @return a collection with the new flow rule batch entries |
| */ |
| private Collection<FlowRuleBatchEntry> createBatchEntries( |
| FlowRuleOperation operation, |
| LinkCollectionIntent intent, |
| DeviceId deviceId, |
| Set<PortNumber> inPorts, |
| Set<PortNumber> outPorts) { |
| Collection<FlowRuleBatchEntry> result = Lists.newLinkedList(); |
| Set<PortNumber> ingressPorts = new HashSet<PortNumber>(); |
| |
| // |
| // Collect all ingress ports for this device. |
| // The intent treatment is applied only on those ports. |
| // |
| for (ConnectPoint cp : intent.ingressPoints()) { |
| if (cp.deviceId().equals(deviceId)) { |
| ingressPorts.add(cp.port()); |
| } |
| } |
| |
| // |
| // Create two treatments: one for setting the output ports, |
| // and a second one that applies the intent treatment and sets the |
| // output ports. |
| // NOTE: The second one is created only if there are ingress ports. |
| // |
| TrafficTreatment.Builder defaultTreatmentBuilder = |
| DefaultTrafficTreatment.builder(); |
| for (PortNumber outPort : outPorts) { |
| defaultTreatmentBuilder.setOutput(outPort); |
| } |
| TrafficTreatment defaultTreatment = defaultTreatmentBuilder.build(); |
| TrafficTreatment intentTreatment = null; |
| if (!ingressPorts.isEmpty()) { |
| TrafficTreatment.Builder intentTreatmentBuilder = |
| DefaultTrafficTreatment.builder(intent.treatment()); |
| for (PortNumber outPort : outPorts) { |
| intentTreatmentBuilder.setOutput(outPort); |
| } |
| intentTreatment = intentTreatmentBuilder.build(); |
| } |
| |
| for (PortNumber inPort : inPorts) { |
| TrafficSelector selector = DefaultTrafficSelector |
| .builder(intent.selector()).matchInport(inPort).build(); |
| TrafficTreatment treatment = defaultTreatment; |
| if (ingressPorts.contains(inPort)) { |
| // Use the intent treatment if this is ingress port |
| treatment = intentTreatment; |
| } |
| FlowRule rule = new DefaultFlowRule(deviceId, |
| selector, treatment, 123, |
| appId, (short) (intent.id().fingerprint() & 0xffff), 0, true); |
| result.add(new FlowRuleBatchEntry(operation, rule)); |
| } |
| |
| return result; |
| } |
| } |