Examples with ProtectedTransportIntent org.onosproject.net.intent.ProtectedTransportIntent used on opensource projects

Example 1 with ProtectedTransportIntent

use of org.onosproject.net.intent.ProtectedTransportIntent in project onos by opennetworkinglab.

the class ProtectedTransportIntentCompiler method createFreshProtectedPaths.

/**
 * Creates new protected paths.
 *
 * @param intent    original intention
 * @param did1      identifier of first device
 * @param did2      identifier of second device
 * @return compilation result
 * @throws IntentCompilationException when there's no satisfying path.
 */
private List<Intent> createFreshProtectedPaths(ProtectedTransportIntent intent, DeviceId did1, DeviceId did2) {
    DisjointPath disjointPath = getDisjointPath(intent, did1, did2);
    if (disjointPath == null || disjointPath.backup() == null) {
        log.error("Unable to find disjoint path between {}, {}", did1, did2);
        throw new IntentCompilationException("Unable to find disjoint paths.");
    }
    Path primary = disjointPath.primary();
    Path secondary = disjointPath.backup();
    String fingerprint = intent.key().toString();
    // pick and allocate Vlan to use as S-tag
    Pair<VlanId, VlanId> vlans = allocateEach(intent, primary, secondary, VlanId.class);
    VlanId primaryVlan = vlans.getLeft();
    VlanId secondaryVlan = vlans.getRight();
    // Build edge Intents for head/tail
    // resource for head/tail
    Collection<NetworkResource> oneResources = new ArrayList<>();
    Collection<NetworkResource> twoResources = new ArrayList<>();
    List<TransportEndpointDescription> onePaths = new ArrayList<>();
    onePaths.add(TransportEndpointDescription.builder().withOutput(vlanPort(primary.src(), primaryVlan)).build());
    onePaths.add(TransportEndpointDescription.builder().withOutput(vlanPort(secondary.src(), secondaryVlan)).build());
    List<TransportEndpointDescription> twoPaths = new ArrayList<>();
    twoPaths.add(TransportEndpointDescription.builder().withOutput(vlanPort(primary.dst(), primaryVlan)).build());
    twoPaths.add(TransportEndpointDescription.builder().withOutput(vlanPort(secondary.dst(), secondaryVlan)).build());
    ProtectionEndpointIntent oneIntent = ProtectionEndpointIntent.builder().key(intent.key()).appId(intent.appId()).priority(intent.priority()).resources(oneResources).deviceId(did1).description(buildDescription(onePaths, did2, fingerprint)).build();
    ProtectionEndpointIntent twoIntent = ProtectionEndpointIntent.builder().key(intent.key()).appId(intent.appId()).resources(twoResources).deviceId(did2).description(buildDescription(twoPaths, did1, fingerprint)).build();
    // Build transit intent for primary/secondary path
    Collection<NetworkResource> resources1 = ImmutableList.of(marker("protection1"));
    Collection<NetworkResource> resources2 = ImmutableList.of(marker("protection2"));
    ImmutableList<Intent> result = ImmutableList.<Intent>builder().addAll(createTransitIntent(intent, primary, primaryVlan, resources1)).addAll(createTransitIntent(intent, secondary, secondaryVlan, resources2)).add(oneIntent).add(twoIntent).build();
    log.trace("createFreshProtectedPaths result: {}", result);
    return result;
}

Example 2 with ProtectedTransportIntent

use of org.onosproject.net.intent.ProtectedTransportIntent in project onos by opennetworkinglab.

the class ProtectedTransportIntentCompiler method compile.

@Override
public List<Intent> compile(ProtectedTransportIntent intent, List<Intent> installable) {
    log.trace("compiling {} {}", intent, installable);
    // case 0 hop, same device
    final DeviceId did1 = intent.one();
    final DeviceId did2 = intent.two();
    if (Objects.equals(did1, did2)) {
        // Doesn't really make sense to create 0 hop protected path, but
        // can generate Flow for the device, just to provide connectivity.
        // future work.
        log.error("0 hop not supported yet.");
        throw new IntentCompilationException("0 hop not supported yet.");
    }
    List<Intent> reusable = Optional.ofNullable(installable).orElse(ImmutableList.of()).stream().filter(this::isIntact).collect(Collectors.toList());
    if (reusable.isEmpty() || reusable.stream().allMatch(ProtectionEndpointIntent.class::isInstance)) {
        // case re-compilation (total failure -> restoration)
        return createFreshProtectedPaths(intent, did1, did2);
    } else {
        // case re-compilation (partial failure)
        log.warn("Re-computing adding new backup path not supported yet. No-Op.");
        // TODO do we need to prune broken
        return installable;
    }
}