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

Example 36 with Path

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

the class MultiPointToSinglePointIntentCompiler method compile.

@Override
public List<Intent> compile(MultiPointToSinglePointIntent intent, List<Intent> installable) {
    Map<DeviceId, Link> links = new HashMap<>();
    ConnectPoint egressPoint = intent.egressPoint();
    final boolean allowMissingPaths = intentAllowsPartialFailure(intent);
    boolean hasPaths = false;
    boolean missingSomePaths = false;
    for (ConnectPoint ingressPoint : intent.ingressPoints()) {
        if (ingressPoint.deviceId().equals(egressPoint.deviceId())) {
            if (deviceService.isAvailable(ingressPoint.deviceId())) {
                hasPaths = true;
            } else {
                missingSomePaths = true;
            }
            continue;
        }
        Path path = getPath(intent, ingressPoint.deviceId(), egressPoint.deviceId());
        if (path != null) {
            hasPaths = true;
            for (Link link : path.links()) {
                if (links.containsKey(link.dst().deviceId())) {
                    // We've already reached the existing tree with the first
                    // part of this path. Add the merging point with different
                    // incoming port, but don't add the remainder of the path
                    // in case it differs from the path we already have.
                    links.put(link.src().deviceId(), link);
                    break;
                }
                links.put(link.src().deviceId(), link);
            }
        } else {
            missingSomePaths = true;
        }
    }
    // Allocate bandwidth on existing paths if a bandwidth constraint is set
    List<ConnectPoint> ingressCPs = intent.filteredIngressPoints().stream().map(fcp -> fcp.connectPoint()).collect(Collectors.toList());
    ConnectPoint egressCP = intent.filteredEgressPoint().connectPoint();
    List<ConnectPoint> pathCPs = links.values().stream().flatMap(l -> Stream.of(l.src(), l.dst())).collect(Collectors.toList());
    pathCPs.addAll(ingressCPs);
    pathCPs.add(egressCP);
    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()).treatment(intent.treatment()).selector(intent.selector()).links(Sets.newHashSet(links.values())).filteredIngressPoints(intent.filteredIngressPoints()).filteredEgressPoints(ImmutableSet.of(intent.filteredEgressPoint())).priority(intent.priority()).constraints(intent.constraints()).resourceGroup(intent.resourceGroup()).build();
    return Collections.singletonList(result);
}

Example 37 with Path

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

the class PointToPointIntentCompiler method compile.

@Override
public List<Intent> compile(PointToPointIntent intent, List<Intent> installable) {
    log.trace("compiling {} {}", intent, installable);
    ConnectPoint ingressPoint = intent.filteredIngressPoint().connectPoint();
    ConnectPoint egressPoint = intent.filteredEgressPoint().connectPoint();
    // Idea: use suggested path as primary and another path from path service as protection
    if (intent.suggestedPath() != null && intent.suggestedPath().size() > 0) {
        Path path = new DefaultPath(PID, intent.suggestedPath(), new ScalarWeight(1));
        // Check intent constraints against suggested path and suggested path availability
        if (checkPath(path, intent.constraints()) && pathAvailable(intent)) {
            allocateIntentBandwidth(intent, path);
            return asList(createLinkCollectionIntent(ImmutableSet.copyOf(intent.suggestedPath()), DEFAULT_COST, intent));
        }
    }
    if (ingressPoint.deviceId().equals(egressPoint.deviceId())) {
        return createZeroHopLinkCollectionIntent(intent);
    }
    // proceed with no protected paths
    if (!ProtectionConstraint.requireProtectedPath(intent)) {
        return createUnprotectedLinkCollectionIntent(intent);
    }
    try {
        // attempt to compute and implement backup path
        return createProtectedIntent(ingressPoint, egressPoint, intent, installable);
    } catch (PathNotFoundException e) {
        log.warn("Could not find disjoint Path for {}", intent);
        // no disjoint path extant -- maximum one path exists between devices
        return createSinglePathIntent(ingressPoint, egressPoint, intent, installable);
    }
}

Example 38 with Path

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

the class PointToPointIntentCompiler method allocateIntentBandwidth.

private void allocateIntentBandwidth(PointToPointIntent intent, Path path) {
    ConnectPoint ingressCP = intent.filteredIngressPoint().connectPoint();
    ConnectPoint egressCP = intent.filteredEgressPoint().connectPoint();
    List<ConnectPoint> pathCPs = path.links().stream().flatMap(l -> Stream.of(l.src(), l.dst())).collect(Collectors.toList());
    pathCPs.add(ingressCP);
    pathCPs.add(egressCP);
    allocateBandwidth(intent, pathCPs);
}

Example 39 with Path

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

the class DefaultVirtualNetworkProvider method isTraversable.

@Override
public boolean isTraversable(ConnectPoint src, ConnectPoint dst) {
    final boolean[] foundSrc = new boolean[1];
    final boolean[] foundDst = new boolean[1];
    Topology topology = topologyService.currentTopology();
    Set<Path> paths = topologyService.getPaths(topology, src.deviceId(), dst.deviceId());
    paths.forEach(path -> {
        foundDst[0] = false;
        foundSrc[0] = false;
        // Traverse the links in each path to determine if both the src and dst connection
        // point are in the path, if so then this src/dst pair are traversable.
        path.links().forEach(link -> {
            if (link.src().equals(src)) {
                foundSrc[0] = true;
            }
            if (link.dst().equals(dst)) {
                foundDst[0] = true;
            }
        });
        if (foundSrc[0] && foundDst[0]) {
            return;
        }
    });
    return foundSrc[0] && foundDst[0];
}

Example 40 with Path

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

the class PathManagerTest method infraToEdge.

@Test
public void infraToEdge() {
    DeviceId src = did("src");
    HostId dst = hid("12:34:56:78:90:ab/1");
    fakeTopoMgr.paths.add(createPath("src", "middle", "edge"));
    fakeHostMgr.hosts.put(dst, host("12:34:56:78:90:ab/1", "edge"));
    Set<Path> paths = service.getPaths(src, dst);
    validatePaths(paths, 1, 3, src, dst);
}