Examples with Path org.onosproject.net.Path used on opensource projects

Example 6 with Path

use of org.onosproject.net.Path in project onos by opennetworkinglab.

the class HostToHostIntentCompiler method compile.

@Override
public List<Intent> compile(HostToHostIntent intent, List<Intent> installable) {
    // If source and destination are the same, there are never any installables.
    if (Objects.equals(intent.one(), intent.two())) {
        return ImmutableList.of();
    }
    boolean isAsymmetric = intent.constraints().contains(new AsymmetricPathConstraint());
    Path pathOne = getPathOrException(intent, intent.one(), intent.two());
    Path pathTwo = isAsymmetric ? getPathOrException(intent, intent.two(), intent.one()) : invertPath(pathOne);
    Host one = hostService.getHost(intent.one());
    Host two = hostService.getHost(intent.two());
    return Arrays.asList(createLinkCollectionIntent(pathOne, one, two, intent), createLinkCollectionIntent(pathTwo, two, one, intent));
}

Example 7 with Path

use of org.onosproject.net.Path in project onos by opennetworkinglab.

the class HostToHostIntentCompiler method createLinkCollectionIntent.

private Intent createLinkCollectionIntent(Path path, Host src, Host dst, HostToHostIntent intent) {
    // Try to allocate bandwidth
    List<ConnectPoint> pathCPs = path.links().stream().flatMap(l -> Stream.of(l.src(), l.dst())).collect(Collectors.toList());
    allocateBandwidth(intent, pathCPs);
    Link ingressLink = path.links().get(0);
    Link egressLink = path.links().get(path.links().size() - 1);
    FilteredConnectPoint ingressPoint = getFilteredPointFromLink(ingressLink);
    FilteredConnectPoint egressPoint = getFilteredPointFromLink(egressLink);
    TrafficSelector selector = builder(intent.selector()).matchEthSrc(src.mac()).matchEthDst(dst.mac()).build();
    /*
         * The path contains also the edge links, these are not necessary
         * for the LinkCollectionIntent.
         */
    Set<Link> coreLinks = path.links().stream().filter(link -> !link.type().equals(EDGE)).collect(Collectors.toSet());
    return LinkCollectionIntent.builder().key(intent.key()).appId(intent.appId()).selector(selector).treatment(intent.treatment()).links(coreLinks).filteredIngressPoints(ImmutableSet.of(ingressPoint)).filteredEgressPoints(ImmutableSet.of(egressPoint)).applyTreatmentOnEgress(true).constraints(intent.constraints()).priority(intent.priority()).resourceGroup(intent.resourceGroup()).build();
}

Example 8 with Path

use of org.onosproject.net.Path in project onos by opennetworkinglab.

the class PointToPointIntentCompiler method pathAvailable.

/**
 * Checks suggested path availability.
 * It checks:
 * - single links availability;
 * - that first and last device of the path are coherent with ingress and egress devices;
 * - links contiguity.
 *
 * @param intent    Intent with suggested path to check
 * @return true if the suggested path is available
 */
private boolean pathAvailable(PointToPointIntent intent) {
    // Check links availability
    List<Link> suggestedPath = intent.suggestedPath();
    for (Link link : suggestedPath) {
        if (!(link instanceof EdgeLink) && !linkService.getLinks(link.src()).contains(link)) {
            return false;
        }
    }
    // Check that first and last device of the path are intent ingress and egress devices
    if (!suggestedPath.get(0).src().deviceId().equals(intent.filteredIngressPoint().connectPoint().deviceId())) {
        return false;
    }
    if (!suggestedPath.get(suggestedPath.size() - 1).dst().deviceId().equals(intent.filteredEgressPoint().connectPoint().deviceId())) {
        return false;
    }
    // Check contiguity
    List<Pair<Link, Link>> linkPairs = IntStream.range(0, suggestedPath.size() - 1).mapToObj(i -> Pair.of(suggestedPath.get(i), suggestedPath.get(i + 1))).collect(Collectors.toList());
    for (Pair<Link, Link> linkPair : linkPairs) {
        if (!linkPair.getKey().dst().deviceId().equals(linkPair.getValue().src().deviceId())) {
            return false;
        }
    }
    return true;
}

Example 9 with Path

use of org.onosproject.net.Path in project onos by opennetworkinglab.

the class PointToPointIntentCompiler method createSinglePathIntent.

private List<Intent> createSinglePathIntent(ConnectPoint ingressPoint, ConnectPoint egressPoint, PointToPointIntent intent, List<Intent> installable) {
    List<Link> links = new ArrayList<>();
    Path onlyPath = getPathOrException(intent, ingressPoint.deviceId(), egressPoint.deviceId());
    List<Intent> reusableIntents = null;
    if (installable != null) {
        reusableIntents = filterInvalidSubIntents(installable, intent);
        if (reusableIntents.size() == installable.size()) {
            // all old paths are still viable
            return installable;
        }
    }
    // return the intents that comprise it.
    if (reusableIntents != null && reusableIntents.size() > 1) {
        return reusableIntents;
    } else {
        // Allocate bandwidth if a bandwidth constraint is set
        allocateIntentBandwidth(intent, onlyPath);
        links.add(createEdgeLink(ingressPoint, true));
        links.addAll(onlyPath.links());
        links.add(createEdgeLink(egressPoint, false));
        return asList(createPathIntent(new DefaultPath(PID, links, onlyPath.weight(), onlyPath.annotations()), intent, PathIntent.ProtectionType.PRIMARY));
    }
}

Example 10 with Path

use of org.onosproject.net.Path in project onos by opennetworkinglab.

the class SinglePointToMultiPointIntentCompiler method compile.

@Override
public List<Intent> compile(SinglePointToMultiPointIntent intent, List<Intent> installable) {
    Set<Link> links = new HashSet<>();
    final boolean allowMissingPaths = intentAllowsPartialFailure(intent);
    boolean hasPaths = false;
    boolean missingSomePaths = false;
    for (ConnectPoint egressPoint : intent.egressPoints()) {
        if (egressPoint.deviceId().equals(intent.ingressPoint().deviceId())) {
            // devices are the same.
            if (deviceService.isAvailable(egressPoint.deviceId())) {
                hasPaths = true;
            } else {
                missingSomePaths = true;
            }
            continue;
        }
        Path path = getPath(intent, intent.ingressPoint().deviceId(), egressPoint.deviceId());
        if (path != null) {
            hasPaths = true;
            links.addAll(path.links());
        } else {
            missingSomePaths = true;
        }
    }
    // Allocate bandwidth if a bandwidth constraint is set
    ConnectPoint ingressCP = intent.filteredIngressPoint().connectPoint();
    List<ConnectPoint> egressCPs = intent.filteredEgressPoints().stream().map(fcp -> fcp.connectPoint()).collect(Collectors.toList());
    List<ConnectPoint> pathCPs = links.stream().flatMap(l -> Stream.of(l.src(), l.dst())).collect(Collectors.toList());
    pathCPs.add(ingressCP);
    pathCPs.addAll(egressCPs);
    allocateBandwidth(intent, pathCPs);
    if (!hasPaths) {
        throw new IntentException("Cannot find any path between ingress and egress points.");
    } else if (!allowMissingPaths && missingSomePaths) {
        throw new IntentException("Missing some paths between ingress and egress points.");
    }
    Intent result = LinkCollectionIntent.builder().appId(intent.appId()).key(intent.key()).selector(intent.selector()).treatment(intent.treatment()).links(links).filteredIngressPoints(ImmutableSet.of(intent.filteredIngressPoint())).filteredEgressPoints(intent.filteredEgressPoints()).priority(intent.priority()).applyTreatmentOnEgress(true).constraints(intent.constraints()).resourceGroup(intent.resourceGroup()).build();
    return Collections.singletonList(result);
}