Examples with Resources org.onosproject.net.resource.Resources used on opensource projects

Example 6 with Resources

use of org.onosproject.net.resource.Resources in project onos by opennetworkinglab.

the class OpticalPathProvisioner method updateBandwidthUsage.

/**
 * Updates usage information of bandwidth based on connectivity which is established.
 * @param connectivity Optical connectivity
 */
private void updateBandwidthUsage(OpticalConnectivity connectivity) {
    if (NO_BW_REQUIREMENT.equals(connectivity.bandwidth())) {
        // no bandwidth requirement, nothing to allocate.
        return;
    }
    OpticalConnectivityId connectivityId = connectivity.id();
    List<Link> links = connectivity.links();
    List<Resource> resources = links.stream().flatMap(l -> Stream.of(l.src(), l.dst())).filter(cp -> !isTransportLayer(deviceService.getDevice(cp.deviceId()).type())).map(cp -> Resources.continuous(cp.deviceId(), cp.port(), Bandwidth.class).resource(connectivity.bandwidth().bps())).collect(Collectors.toList());
    log.debug("allocating bandwidth for {} : {}", connectivityId, resources);
    List<ResourceAllocation> allocations = resourceService.allocate(connectivityId, resources);
    if (allocations.isEmpty()) {
        log.warn("Failed to allocate bandwidth {} to {}", connectivity.bandwidth().bps(), resources);
    // TODO any recovery?
    }
    log.debug("Done allocating bandwidth for {}", connectivityId);
}

Example 7 with Resources

use of org.onosproject.net.resource.Resources in project onos by opennetworkinglab.

the class OpticalConnectivityIntentCompiler method compile.

@Override
public List<Intent> compile(OpticalConnectivityIntent intent, List<Intent> installable) {
    // Check if source and destination are optical OCh ports
    ConnectPoint src = intent.getSrc();
    ConnectPoint dst = intent.getDst();
    checkArgument(deviceService.getPort(src.deviceId(), src.port()) instanceof OchPort);
    checkArgument(deviceService.getPort(dst.deviceId(), dst.port()) instanceof OchPort);
    List<Resource> resources = new LinkedList<>();
    log.debug("Compiling optical connectivity intent between {} and {}", src, dst);
    // Release of intent resources here is only a temporary solution for handling the
    // case of recompiling due to intent restoration (when intent state is FAILED).
    // TODO: try to release intent resources in IntentManager.
    resourceService.release(intent.key());
    // Check OCh port availability
    // If ports are not available, compilation fails
    // Else add port to resource reservation list
    Resource srcPortResource = Resources.discrete(src.deviceId(), src.port()).resource();
    Resource dstPortResource = Resources.discrete(dst.deviceId(), dst.port()).resource();
    if (!Stream.of(srcPortResource, dstPortResource).allMatch(resourceService::isAvailable)) {
        log.error("Ports for the intent are not available. Intent: {}", intent);
        throw new OpticalIntentCompilationException("Ports for the intent are not available. Intent: " + intent);
    }
    resources.add(srcPortResource);
    resources.add(dstPortResource);
    // If there is a suggestedPath, use this path without further checking, otherwise trigger path computation
    Stream<Path> paths;
    if (intent.suggestedPath().isPresent()) {
        paths = Stream.of(intent.suggestedPath().get());
    } else {
        paths = getOpticalPaths(intent);
    }
    // Find first path that has the required resources
    Optional<Map.Entry<Path, List<OchSignal>>> found = paths.map(path -> Maps.immutableEntry(path, findFirstAvailableLambda(intent, path))).filter(entry -> !entry.getValue().isEmpty()).filter(entry -> convertToResources(entry.getKey(), entry.getValue()).stream().allMatch(resourceService::isAvailable)).findFirst();
    // Allocate resources and create optical path intent
    if (found.isPresent()) {
        log.debug("Suitable lightpath FOUND for intent {}", intent);
        resources.addAll(convertToResources(found.get().getKey(), found.get().getValue()));
        allocateResources(intent, resources);
        OchSignal ochSignal = OchSignal.toFixedGrid(found.get().getValue(), ChannelSpacing.CHL_50GHZ);
        return ImmutableList.of(createIntent(intent, found.get().getKey(), ochSignal));
    } else {
        log.error("Unable to find suitable lightpath for intent {}", intent);
        throw new OpticalIntentCompilationException("Unable to find suitable lightpath for intent " + intent);
    }
}