| /* |
| * 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.impl.compiler; |
| |
| 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.Link; |
| 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.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.intent.FlowRuleIntent; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.IntentCompiler; |
| import org.onosproject.net.intent.IntentExtensionService; |
| import org.onosproject.net.intent.OpticalPathIntent; |
| import org.onosproject.net.intent.impl.IntentCompilationException; |
| import org.onosproject.net.resource.DefaultLinkResourceRequest; |
| import org.onosproject.net.resource.LambdaResource; |
| import org.onosproject.net.resource.LambdaResourceAllocation; |
| import org.onosproject.net.resource.LinkResourceAllocations; |
| import org.onosproject.net.resource.LinkResourceRequest; |
| import org.onosproject.net.resource.LinkResourceService; |
| import org.onosproject.net.resource.ResourceAllocation; |
| import org.onosproject.net.resource.ResourceType; |
| import org.onosproject.net.topology.TopologyService; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| |
| import static org.onosproject.net.flow.DefaultTrafficTreatment.builder; |
| |
| @Component(immediate = true) |
| public class OpticalPathIntentCompiler implements IntentCompiler<OpticalPathIntent> { |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected IntentExtensionService intentManager; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected TopologyService topologyService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LinkResourceService resourceService; |
| |
| private ApplicationId appId; |
| |
| static final short SIGNAL_TYPE = (short) 1; |
| |
| @Activate |
| public void activate() { |
| appId = coreService.registerApplication("org.onosproject.net.intent"); |
| intentManager.registerCompiler(OpticalPathIntent.class, this); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| intentManager.unregisterCompiler(OpticalPathIntent.class); |
| } |
| |
| @Override |
| public List<Intent> compile(OpticalPathIntent intent, List<Intent> installable, |
| Set<LinkResourceAllocations> resources) { |
| LinkResourceAllocations allocations = assignWavelength(intent); |
| |
| return Collections.singletonList( |
| new FlowRuleIntent(appId, createRules(intent, allocations), intent.resources())); |
| } |
| |
| private LinkResourceAllocations assignWavelength(OpticalPathIntent intent) { |
| LinkResourceRequest.Builder request = DefaultLinkResourceRequest |
| .builder(intent.id(), intent.path().links()) |
| .addLambdaRequest(); |
| return resourceService.requestResources(request.build()); |
| } |
| |
| private List<FlowRule> createRules(OpticalPathIntent intent, LinkResourceAllocations allocations) { |
| TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); |
| selectorBuilder.matchInPort(intent.src().port()); |
| |
| List<FlowRule> rules = new LinkedList<>(); |
| ConnectPoint prev = intent.src(); |
| |
| for (Link link : intent.path().links()) { |
| ResourceAllocation allocation = allocations.getResourceAllocation(link).stream() |
| .filter(x -> x.type() == ResourceType.LAMBDA) |
| .findFirst() |
| .orElseThrow(() -> new IntentCompilationException("Lambda was not assigned successfully")); |
| LambdaResource la = ((LambdaResourceAllocation) allocation).lambda(); |
| |
| TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); |
| treatmentBuilder.setLambda((short) la.toInt()); |
| treatmentBuilder.setOutput(link.src().port()); |
| |
| FlowRule rule = new DefaultFlowRule(prev.deviceId(), |
| selectorBuilder.build(), |
| treatmentBuilder.build(), |
| 100, |
| appId, |
| 100, |
| true); |
| |
| rules.add(rule); |
| |
| prev = link.dst(); |
| selectorBuilder.matchInPort(link.dst().port()); |
| selectorBuilder.matchOpticalSignalType(SIGNAL_TYPE); |
| selectorBuilder.matchLambda((short) la.toInt()); |
| |
| } |
| |
| // build the last T port rule |
| TrafficTreatment.Builder treatmentLast = builder(); |
| treatmentLast.setOutput(intent.dst().port()); |
| FlowRule rule = new DefaultFlowRule(intent.dst().deviceId(), |
| selectorBuilder.build(), |
| treatmentLast.build(), |
| 100, |
| appId, |
| 100, |
| true); |
| rules.add(rule); |
| |
| return rules; |
| } |
| } |