diff options
Diffstat (limited to 'framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompiler.java')
| -rw-r--r-- | framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompiler.java | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompiler.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompiler.java new file mode 100644 index 00000000..ca9ae5cc --- /dev/null +++ b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompiler.java @@ -0,0 +1,195 @@ +/* + * 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 com.google.common.collect.Lists; +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.flow.criteria.Criteria; +import org.onosproject.net.flow.instructions.Instructions; +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.resource.link.LinkResourceAllocations; +import org.onosproject.net.resource.link.LinkResourceService; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Collections; +import java.util.LinkedList; +import java.util.List; +import java.util.Set; + +@Component(immediate = true) +public class OpticalPathIntentCompiler implements IntentCompiler<OpticalPathIntent> { + + private static final Logger log = LoggerFactory.getLogger(OpticalPathIntentCompiler.class); + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected IntentExtensionService intentManager; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected CoreService coreService; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected LinkResourceService resourceService; + + private ApplicationId appId; + + @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) { + log.debug("Compiling optical path intent between {} and {}", intent.src(), intent.dst()); + + // Create rules for forward and reverse path + List<FlowRule> rules = createRules(intent); + if (intent.isBidirectional()) { + rules.addAll(createReverseRules(intent)); + } + + return Collections.singletonList(new FlowRuleIntent(appId, rules, intent.resources())); + } + + /** + * Create rules for the forward path of the intent. + * + * @param intent the intent + * @return list of flow rules + */ + private List<FlowRule> createRules(OpticalPathIntent intent) { + TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); + selectorBuilder.matchInPort(intent.src().port()); + + List<FlowRule> rules = new LinkedList<>(); + ConnectPoint current = intent.src(); + + for (Link link : intent.path().links()) { + TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); + treatmentBuilder.add(Instructions.modL0Lambda(intent.lambda())); + treatmentBuilder.setOutput(link.src().port()); + + FlowRule rule = DefaultFlowRule.builder() + .forDevice(current.deviceId()) + .withSelector(selectorBuilder.build()) + .withTreatment(treatmentBuilder.build()) + .withPriority(intent.priority()) + .fromApp(appId) + .makePermanent() + .build(); + + rules.add(rule); + + current = link.dst(); + selectorBuilder.matchInPort(link.dst().port()); + selectorBuilder.add(Criteria.matchLambda(intent.lambda())); + selectorBuilder.add(Criteria.matchOchSignalType(intent.signalType())); + } + + // Build the egress ROADM rule + TrafficTreatment.Builder treatmentLast = DefaultTrafficTreatment.builder(); + treatmentLast.setOutput(intent.dst().port()); + + FlowRule rule = new DefaultFlowRule.Builder() + .forDevice(intent.dst().deviceId()) + .withSelector(selectorBuilder.build()) + .withTreatment(treatmentLast.build()) + .withPriority(intent.priority()) + .fromApp(appId) + .makePermanent() + .build(); + rules.add(rule); + + return rules; + } + + /** + * Create rules for the reverse path of the intent. + * + * @param intent the intent + * @return list of flow rules + */ + private List<FlowRule> createReverseRules(OpticalPathIntent intent) { + TrafficSelector.Builder selectorBuilder = DefaultTrafficSelector.builder(); + selectorBuilder.matchInPort(intent.dst().port()); + + List<FlowRule> rules = new LinkedList<>(); + ConnectPoint current = intent.dst(); + + for (Link link : Lists.reverse(intent.path().links())) { + TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder(); + treatmentBuilder.add(Instructions.modL0Lambda(intent.lambda())); + treatmentBuilder.setOutput(link.dst().port()); + + FlowRule rule = DefaultFlowRule.builder() + .forDevice(current.deviceId()) + .withSelector(selectorBuilder.build()) + .withTreatment(treatmentBuilder.build()) + .withPriority(intent.priority()) + .fromApp(appId) + .makePermanent() + .build(); + + rules.add(rule); + + current = link.src(); + selectorBuilder.matchInPort(link.src().port()); + selectorBuilder.add(Criteria.matchLambda(intent.lambda())); + selectorBuilder.add(Criteria.matchOchSignalType(intent.signalType())); + } + + // Build the egress ROADM rule + TrafficTreatment.Builder treatmentLast = DefaultTrafficTreatment.builder(); + treatmentLast.setOutput(intent.src().port()); + + FlowRule rule = new DefaultFlowRule.Builder() + .forDevice(intent.src().deviceId()) + .withSelector(selectorBuilder.build()) + .withTreatment(treatmentLast.build()) + .withPriority(intent.priority()) + .fromApp(appId) + .makePermanent() + .build(); + rules.add(rule); + + return rules; + } +} |