diff options
Diffstat (limited to 'framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalConnectivityIntentCompiler.java')
| -rw-r--r-- | framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalConnectivityIntentCompiler.java | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalConnectivityIntentCompiler.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalConnectivityIntentCompiler.java deleted file mode 100644 index e017ac58..00000000 --- a/framework/src/onos/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalConnectivityIntentCompiler.java +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Copyright 2014-2015 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.ImmutableList; -import com.google.common.collect.ImmutableSet; -import com.google.common.collect.Iterables; -import com.google.common.collect.Sets; -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.Frequency; -import org.onosproject.net.AnnotationKeys; -import org.onosproject.net.ConnectPoint; -import org.onosproject.net.DeviceId; -import org.onosproject.net.IndexedLambda; -import org.onosproject.net.Link; -import org.onosproject.net.OchPort; -import org.onosproject.net.OchSignal; -import org.onosproject.net.OchSignalType; -import org.onosproject.net.OmsPort; -import org.onosproject.net.Path; -import org.onosproject.net.Port; -import org.onosproject.net.device.DeviceService; -import org.onosproject.net.intent.Intent; -import org.onosproject.net.intent.IntentCompiler; -import org.onosproject.net.intent.IntentExtensionService; -import org.onosproject.net.intent.OpticalConnectivityIntent; -import org.onosproject.net.intent.OpticalPathIntent; -import org.onosproject.net.intent.impl.IntentCompilationException; -import org.onosproject.net.newresource.ResourceAllocation; -import org.onosproject.net.newresource.ResourcePath; -import org.onosproject.net.newresource.ResourceService; -import org.onosproject.net.resource.link.LinkResourceAllocations; -import org.onosproject.net.topology.LinkWeight; -import org.onosproject.net.topology.Topology; -import org.onosproject.net.topology.TopologyService; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import java.util.Collections; -import java.util.List; -import java.util.Set; -import java.util.stream.Collectors; -import java.util.stream.Stream; - -import static com.google.common.base.Preconditions.checkArgument; - -/** - * An intent compiler for {@link org.onosproject.net.intent.OpticalConnectivityIntent}. - */ -// For now, remove component designation until dependency on the new resource manager is available. -@Component(immediate = true) -public class OpticalConnectivityIntentCompiler implements IntentCompiler<OpticalConnectivityIntent> { - - protected static final Logger log = LoggerFactory.getLogger(OpticalConnectivityIntentCompiler.class); - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected IntentExtensionService intentManager; - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected TopologyService topologyService; - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected DeviceService deviceService; - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected ResourceService resourceService; - - @Activate - public void activate() { - intentManager.registerCompiler(OpticalConnectivityIntent.class, this); - } - - @Deactivate - public void deactivate() { - intentManager.unregisterCompiler(OpticalConnectivityIntent.class); - } - - @Override - public List<Intent> compile(OpticalConnectivityIntent intent, - List<Intent> installable, - Set<LinkResourceAllocations> resources) { - // Check if source and destination are optical OCh ports - ConnectPoint src = intent.getSrc(); - ConnectPoint dst = intent.getDst(); - Port srcPort = deviceService.getPort(src.deviceId(), src.port()); - Port dstPort = deviceService.getPort(dst.deviceId(), dst.port()); - checkArgument(srcPort instanceof OchPort); - checkArgument(dstPort instanceof OchPort); - - log.debug("Compiling optical connectivity intent between {} and {}", src, dst); - - // Reserve OCh ports - ResourcePath srcPortPath = ResourcePath.discrete(src.deviceId(), src.port()); - ResourcePath dstPortPath = ResourcePath.discrete(dst.deviceId(), dst.port()); - List<org.onosproject.net.newresource.ResourceAllocation> allocation = - resourceService.allocate(intent.id(), srcPortPath, dstPortPath); - if (allocation.isEmpty()) { - throw new IntentCompilationException("Unable to reserve ports for intent " + intent); - } - - // Calculate available light paths - Set<Path> paths = getOpticalPaths(intent); - - // Use first path that can be successfully reserved - for (Path path : paths) { - - // Static or dynamic lambda allocation - String staticLambda = srcPort.annotations().value(AnnotationKeys.STATIC_LAMBDA); - OchPort srcOchPort = (OchPort) srcPort; - OchPort dstOchPort = (OchPort) dstPort; - OchSignal ochSignal; - - // FIXME: need to actually reserve the lambda for static lambda's - if (staticLambda != null) { - ochSignal = new OchSignal(Frequency.ofHz(Long.parseLong(staticLambda)), - srcOchPort.lambda().channelSpacing(), - srcOchPort.lambda().slotGranularity()); - } else if (!srcOchPort.isTunable() || !dstOchPort.isTunable()) { - // FIXME: also check OCh port - ochSignal = srcOchPort.lambda(); - } else { - // Request and reserve lambda on path - IndexedLambda lambda = assignWavelength(intent, path); - if (lambda == null) { - continue; - } - OmsPort omsPort = (OmsPort) deviceService.getPort(path.src().deviceId(), path.src().port()); - ochSignal = new OchSignal((int) lambda.index(), omsPort.maxFrequency(), omsPort.grid()); - } - - // Create installable optical path intent - // Only support fixed grid for now - OchSignalType signalType = OchSignalType.FIXED_GRID; - - Intent newIntent = OpticalPathIntent.builder() - .appId(intent.appId()) - .src(intent.getSrc()) - .dst(intent.getDst()) - .path(path) - .lambda(ochSignal) - .signalType(signalType) - .bidirectional(intent.isBidirectional()) - .build(); - - return ImmutableList.of(newIntent); - } - - // Release port allocations if unsuccessful - resourceService.release(intent.id()); - - throw new IntentCompilationException("Unable to find suitable lightpath for intent " + intent); - } - - /** - * Request and reserve first available wavelength across path. - * - * @param path path in WDM topology - * @return first available lambda allocated - */ - private IndexedLambda assignWavelength(Intent intent, Path path) { - Set<IndexedLambda> lambdas = findCommonLambdasOverLinks(path.links()); - if (lambdas.isEmpty()) { - return null; - } - - IndexedLambda minLambda = findFirstLambda(lambdas); - List<ResourcePath> lambdaResources = path.links().stream() - .flatMap(x -> Stream.of( - ResourcePath.discrete(x.src().deviceId(), x.src().port()), - ResourcePath.discrete(x.dst().deviceId(), x.dst().port()) - )) - .map(x -> x.child(minLambda)) - .collect(Collectors.toList()); - - List<ResourceAllocation> allocations = resourceService.allocate(intent.id(), lambdaResources); - if (allocations.isEmpty()) { - log.info("Resource allocation for {} failed (resource request: {})", intent, lambdaResources); - return null; - } - - return minLambda; - } - - private Set<IndexedLambda> findCommonLambdasOverLinks(List<Link> links) { - return links.stream() - .flatMap(x -> Stream.of( - ResourcePath.discrete(x.src().deviceId(), x.src().port()), - ResourcePath.discrete(x.dst().deviceId(), x.dst().port()) - )) - .map(resourceService::getAvailableResources) - .map(x -> Iterables.filter(x, r -> r.last() instanceof IndexedLambda)) - .map(x -> Iterables.transform(x, r -> (IndexedLambda) r.last())) - .map(x -> (Set<IndexedLambda>) ImmutableSet.copyOf(x)) - .reduce(Sets::intersection) - .orElse(Collections.emptySet()); - } - - private IndexedLambda findFirstLambda(Set<IndexedLambda> lambdas) { - return lambdas.stream() - .findFirst() - .get(); - } - - private ConnectPoint staticPort(ConnectPoint connectPoint) { - Port port = deviceService.getPort(connectPoint.deviceId(), connectPoint.port()); - - String staticPort = port.annotations().value(AnnotationKeys.STATIC_PORT); - - // FIXME: need a better way to match the port - if (staticPort != null) { - for (Port p : deviceService.getPorts(connectPoint.deviceId())) { - if (staticPort.equals(p.number().name())) { - return new ConnectPoint(p.element().id(), p.number()); - } - } - } - - return null; - } - - /** - * Calculates optical paths in WDM topology. - * - * @param intent optical connectivity intent - * @return set of paths in WDM topology - */ - private Set<Path> getOpticalPaths(OpticalConnectivityIntent intent) { - // Route in WDM topology - Topology topology = topologyService.currentTopology(); - LinkWeight weight = edge -> { - // Disregard inactive or non-optical links - if (edge.link().state() == Link.State.INACTIVE) { - return -1; - } - if (edge.link().type() != Link.Type.OPTICAL) { - return -1; - } - // Adhere to static port mappings - DeviceId srcDeviceId = edge.link().src().deviceId(); - if (srcDeviceId.equals(intent.getSrc().deviceId())) { - ConnectPoint srcStaticPort = staticPort(intent.getSrc()); - if (srcStaticPort != null) { - return srcStaticPort.equals(edge.link().src()) ? 1 : -1; - } - } - DeviceId dstDeviceId = edge.link().dst().deviceId(); - if (dstDeviceId.equals(intent.getDst().deviceId())) { - ConnectPoint dstStaticPort = staticPort(intent.getDst()); - if (dstStaticPort != null) { - return dstStaticPort.equals(edge.link().dst()) ? 1 : -1; - } - } - - return 1; - }; - - ConnectPoint start = intent.getSrc(); - ConnectPoint end = intent.getDst(); - Set<Path> paths = topologyService.getPaths(topology, start.deviceId(), - end.deviceId(), weight); - - return paths; - } -} |