| /* |
| * 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.onlab.onos.net.intent.impl; |
| |
| import static org.onlab.onos.net.flow.DefaultTrafficTreatment.builder; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| 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.onos.core.ApplicationId; |
| import org.onlab.onos.core.CoreService; |
| import org.onlab.onos.net.ConnectPoint; |
| import org.onlab.onos.net.Link; |
| import org.onlab.onos.net.flow.DefaultFlowRule; |
| import org.onlab.onos.net.flow.DefaultTrafficSelector; |
| import org.onlab.onos.net.flow.FlowRule; |
| import org.onlab.onos.net.flow.FlowRuleBatchEntry; |
| import org.onlab.onos.net.flow.FlowRuleBatchEntry.FlowRuleOperation; |
| import org.onlab.onos.net.flow.FlowRuleBatchOperation; |
| import org.onlab.onos.net.flow.TrafficSelector; |
| import org.onlab.onos.net.flow.TrafficTreatment; |
| import org.onlab.onos.net.intent.IntentExtensionService; |
| import org.onlab.onos.net.intent.IntentInstaller; |
| import org.onlab.onos.net.intent.PathIntent; |
| import org.slf4j.Logger; |
| |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Installer for {@link PathIntent packet path connectivity intents}. |
| */ |
| @Component(immediate = true) |
| public class PathIntentInstaller implements IntentInstaller<PathIntent> { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @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.onlab.onos.net.intent"); |
| intentManager.registerInstaller(PathIntent.class, this); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| intentManager.unregisterInstaller(PathIntent.class); |
| } |
| |
| @Override |
| public List<FlowRuleBatchOperation> install(PathIntent intent) { |
| TrafficSelector.Builder builder = |
| DefaultTrafficSelector.builder(intent.selector()); |
| Iterator<Link> links = intent.path().links().iterator(); |
| ConnectPoint prev = links.next().dst(); |
| List<FlowRuleBatchEntry> rules = Lists.newLinkedList(); |
| // TODO Generate multiple batches |
| while (links.hasNext()) { |
| builder.matchInport(prev.port()); |
| Link link = links.next(); |
| TrafficTreatment treatment = builder() |
| .setOutput(link.src().port()).build(); |
| |
| FlowRule rule = new DefaultFlowRule(link.src().deviceId(), |
| builder.build(), treatment, |
| 123, appId, 0, true); |
| rules.add(new FlowRuleBatchEntry(FlowRuleOperation.ADD, rule)); |
| prev = link.dst(); |
| } |
| return Lists.newArrayList(new FlowRuleBatchOperation(rules)); |
| } |
| |
| @Override |
| public List<FlowRuleBatchOperation> uninstall(PathIntent intent) { |
| TrafficSelector.Builder builder = |
| DefaultTrafficSelector.builder(intent.selector()); |
| Iterator<Link> links = intent.path().links().iterator(); |
| ConnectPoint prev = links.next().dst(); |
| List<FlowRuleBatchEntry> rules = Lists.newLinkedList(); |
| // TODO Generate multiple batches |
| while (links.hasNext()) { |
| builder.matchInport(prev.port()); |
| Link link = links.next(); |
| TrafficTreatment treatment = builder() |
| .setOutput(link.src().port()).build(); |
| FlowRule rule = new DefaultFlowRule(link.src().deviceId(), |
| builder.build(), treatment, |
| 123, appId, 0, true); |
| rules.add(new FlowRuleBatchEntry(FlowRuleOperation.REMOVE, rule)); |
| prev = link.dst(); |
| } |
| return Lists.newArrayList(new FlowRuleBatchOperation(rules)); |
| } |
| |
| // TODO refactor below this line... ---------------------------- |
| |
| /** |
| * Generates the series of MatchActionOperations from the |
| * {@link FlowBatchOperation}. |
| * <p> |
| * FIXME: Currently supporting PacketPathFlow and SingleDstTreeFlow only. |
| * <p> |
| * FIXME: MatchActionOperations should have dependency field to the other |
| * match action operations, and this method should use this. |
| * |
| * @param op the {@link FlowBatchOperation} object |
| * @return the list of {@link MatchActionOperations} objects |
| */ |
| /* |
| private List<MatchActionOperations> |
| generateMatchActionOperationsList(FlowBatchOperation op) { |
| |
| // MatchAction operations at head (ingress) switches. |
| MatchActionOperations headOps = matchActionService.createOperationsList(); |
| |
| // MatchAction operations at rest of the switches. |
| MatchActionOperations tailOps = matchActionService.createOperationsList(); |
| |
| MatchActionOperations removeOps = matchActionService.createOperationsList(); |
| |
| for (BatchOperationEntry<Operator, ?> e : op.getOperations()) { |
| |
| if (e.getOperator() == FlowBatchOperation.Operator.ADD) { |
| generateInstallMatchActionOperations(e, tailOps, headOps); |
| } else if (e.getOperator() == FlowBatchOperation.Operator.REMOVE) { |
| generateRemoveMatchActionOperations(e, removeOps); |
| } else { |
| throw new UnsupportedOperationException( |
| "FlowManager supports ADD and REMOVE operations only."); |
| } |
| |
| } |
| |
| return Arrays.asList(tailOps, headOps, removeOps); |
| } |
| */ |
| |
| /** |
| * Generates MatchActionOperations for an INSTALL FlowBatchOperation. |
| * <p/> |
| * FIXME: Currently only supports flows that generate exactly two match |
| * action operation sets. |
| * |
| * @param e Flow BatchOperationEntry |
| * @param tailOps MatchActionOperation set that the tail |
| * MatchActionOperations will be placed in |
| * @param headOps MatchActionOperation set that the head |
| * MatchActionOperations will be placed in |
| */ |
| /* |
| private void generateInstallMatchActionOperations( |
| BatchOperationEntry<Operator, ?> e, |
| MatchActionOperations tailOps, |
| MatchActionOperations headOps) { |
| |
| if (!(e.getTarget() instanceof Flow)) { |
| throw new IllegalStateException( |
| "The target is not Flow object: " + e.getTarget()); |
| } |
| |
| // Compile flows to match-actions |
| Flow flow = (Flow) e.getTarget(); |
| List<MatchActionOperations> maOps = flow.compile( |
| e.getOperator(), matchActionService); |
| verifyNotNull(maOps, "Could not compile the flow: " + flow); |
| verify(maOps.size() == 2, |
| "The flow generates unspported match-action operations."); |
| |
| // Map FlowId to MatchActionIds |
| for (MatchActionOperations maOp : maOps) { |
| for (MatchActionOperationEntry entry : maOp.getOperations()) { |
| flowMatchActionsMap.put( |
| KryoFactory.serialize(flow.getId()), |
| KryoFactory.serialize(entry.getTarget())); |
| } |
| } |
| |
| // Merge match-action operations |
| for (MatchActionOperationEntry mae : maOps.get(0).getOperations()) { |
| verify(mae.getOperator() == MatchActionOperations.Operator.INSTALL); |
| tailOps.addOperation(mae); |
| } |
| for (MatchActionOperationEntry mae : maOps.get(1).getOperations()) { |
| verify(mae.getOperator() == MatchActionOperations.Operator.INSTALL); |
| headOps.addOperation(mae); |
| } |
| } |
| */ |
| /** |
| * Generates MatchActionOperations for a REMOVE FlowBatchOperation. |
| * |
| * @param e Flow BatchOperationEntry |
| * @param removeOps MatchActionOperation set that the remove |
| * MatchActionOperations will be placed in |
| */ |
| /* |
| private void generateRemoveMatchActionOperations( |
| BatchOperationEntry<Operator, ?> e, |
| MatchActionOperations removeOps) { |
| |
| if (!(e.getTarget() instanceof FlowId)) { |
| throw new IllegalStateException( |
| "The target is not a FlowId object: " + e.getTarget()); |
| } |
| |
| // Compile flows to match-actions |
| FlowId flowId = (FlowId) e.getTarget(); |
| |
| for (byte[] matchActionIdBytes : |
| flowMatchActionsMap.remove(KryoFactory.serialize(flowId))) { |
| MatchActionId matchActionId = KryoFactory.deserialize(matchActionIdBytes); |
| removeOps.addOperation(new MatchActionOperationEntry( |
| MatchActionOperations.Operator.REMOVE, matchActionId)); |
| } |
| } |
| */ |
| } |