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

Example 1 with ResourceId

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

the class ConnectivityIntentCompiler method allocateBandwidth.

/**
 * Allocates the bandwidth specified as intent constraint on each link
 * composing the intent, if a bandwidth constraint is specified.
 *
 * @param intent the intent requesting bandwidth allocation
 * @param connectPoints the connect points composing the intent path computed
 */
protected void allocateBandwidth(ConnectivityIntent intent, List<ConnectPoint> connectPoints) {
    // Retrieve bandwidth constraint if exists
    List<Constraint> constraints = intent.constraints();
    if (constraints == null) {
        return;
    }
    Optional<Constraint> constraint = constraints.stream().filter(c -> c instanceof BandwidthConstraint).findAny();
    // If there is no bandwidth constraint continue
    if (!constraint.isPresent()) {
        return;
    }
    BandwidthConstraint bwConstraint = (BandwidthConstraint) constraint.get();
    double bw = bwConstraint.bandwidth().bps();
    // If a resource group is set on the intent, the resource consumer is
    // set equal to it. Otherwise it's set to the intent key
    ResourceConsumer newResourceConsumer = intent.resourceGroup() != null ? intent.resourceGroup() : intent.key();
    // Get the list of current resource allocations
    Collection<ResourceAllocation> resourceAllocations = resourceService.getResourceAllocations(newResourceConsumer);
    // Get the list of resources already allocated from resource allocations
    List<Resource> resourcesAllocated = resourcesFromAllocations(resourceAllocations);
    // Get the list of resource ids for resources already allocated
    List<ResourceId> idsResourcesAllocated = resourceIds(resourcesAllocated);
    // Create the list of incoming resources requested. Exclude resources
    // already allocated.
    List<Resource> incomingResources = resources(connectPoints, bw).stream().filter(r -> !resourcesAllocated.contains(r)).collect(Collectors.toList());
    if (incomingResources.isEmpty()) {
        return;
    }
    // Create the list of resources to be added, meaning their key is not
    // present in the resources already allocated
    List<Resource> resourcesToAdd = incomingResources.stream().filter(r -> !idsResourcesAllocated.contains(r.id())).collect(Collectors.toList());
    // Resources to updated are all the new valid resources except the
    // resources to be added
    List<Resource> resourcesToUpdate = Lists.newArrayList(incomingResources);
    resourcesToUpdate.removeAll(resourcesToAdd);
    // If there are no resources to update skip update procedures
    if (!resourcesToUpdate.isEmpty()) {
        // Remove old resources that need to be updated
        // TODO: use transaction updates when available in the resource service
        List<ResourceAllocation> resourceAllocationsToUpdate = resourceAllocations.stream().filter(rA -> resourceIds(resourcesToUpdate).contains(rA.resource().id())).collect(Collectors.toList());
        log.debug("Releasing bandwidth for intent {}: {} bps", newResourceConsumer, resourcesToUpdate);
        resourceService.release(resourceAllocationsToUpdate);
        // Update resourcesToAdd with the list of both the new resources and
        // the resources to update
        resourcesToAdd.addAll(resourcesToUpdate);
    }
    // remove them
    if (intent.resourceGroup() != null) {
        // Get the list of current resource allocations made by intent key
        Collection<ResourceAllocation> resourceAllocationsByKey = resourceService.getResourceAllocations(intent.key());
        resourceService.release(Lists.newArrayList(resourceAllocationsByKey));
    }
    // Allocate resources
    log.debug("Allocating bandwidth for intent {}: {} bps", newResourceConsumer, resourcesToAdd);
    List<ResourceAllocation> allocations = resourceService.allocate(newResourceConsumer, resourcesToAdd);
    if (allocations.isEmpty()) {
        log.debug("No resources allocated for intent {}", newResourceConsumer);
    }
    log.debug("Done allocating bandwidth for intent {}", newResourceConsumer);
}

Example 2 with ResourceId

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

the class ConsistentResourceStore method unregister.

@Override
public boolean unregister(List<? extends ResourceId> ids) {
    checkNotNull(ids);
    // Retry the transaction until successful.
    while (true) {
        TransactionContext tx = service.transactionContextBuilder().build();
        tx.begin();
        TransactionalDiscreteResourceSubStore discreteTxStore = discreteStore.transactional(tx);
        TransactionalContinuousResourceSubStore continuousTxStore = continuousStore.transactional(tx);
        // Look up resources by resource IDs
        List<Resource> resources = ids.stream().filter(x -> x.parent().isPresent()).map(x -> {
            // avoid access to consistent map in the case of discrete resource
            if (x instanceof DiscreteResourceId) {
                return Optional.of(Resources.discrete((DiscreteResourceId) x).resource());
            } else {
                return continuousTxStore.lookup((ContinuousResourceId) x);
            }
        }).flatMap(Tools::stream).collect(Collectors.toList());
        // the order is preserved by LinkedHashMap
        Map<DiscreteResourceId, List<Resource>> resourceMap = resources.stream().collect(Collectors.groupingBy(x -> x.parent().get().id(), LinkedHashMap::new, Collectors.toList()));
        for (Map.Entry<DiscreteResourceId, List<Resource>> entry : resourceMap.entrySet()) {
            if (!unregister(discreteTxStore, continuousTxStore, entry.getKey(), entry.getValue())) {
                log.warn("Failed to unregister {}: Failed to remove {} values.", entry.getKey(), entry.getValue().size());
                return abortTransaction(tx);
            }
        }
        try {
            CommitStatus status = commitTransaction(tx);
            if (status == CommitStatus.SUCCESS) {
                List<ResourceEvent> events = resources.stream().filter(x -> x.parent().isPresent()).map(x -> new ResourceEvent(RESOURCE_REMOVED, x)).collect(Collectors.toList());
                notifyDelegate(events);
                return true;
            }
        } catch (InterruptedException | ExecutionException | TimeoutException e) {
            String message = resources.stream().map(Resource::simpleTypeName).collect(Collectors.groupingBy(Function.identity(), Collectors.counting())).entrySet().stream().map(entry -> String.format("%d %s type resources", entry.getValue(), entry.getKey())).collect(Collectors.joining(", "));
            log.warn("Failed to unregister {}: {}", message, e);
            return false;
        }
    }
}