| package org.onosproject.net.intent.impl.compiler; |
| |
| import static java.util.Arrays.asList; |
| import static org.onosproject.net.DefaultEdgeLink.createEdgeLink; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Set; |
| |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DefaultPath; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Path; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.MplsIntent; |
| import org.onosproject.net.intent.MplsPathIntent; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.net.resource.LinkResourceAllocations; |
| |
| |
| @Component(immediate = true) |
| public class MplsIntentCompiler extends ConnectivityIntentCompiler<MplsIntent> { |
| |
| // TODO: use off-the-shell core provider ID |
| private static final ProviderId PID = |
| new ProviderId("core", "org.onosproject.core", true); |
| // TODO: consider whether the default cost is appropriate or not |
| public static final int DEFAULT_COST = 1; |
| |
| |
| @Activate |
| public void activate() { |
| intentManager.registerCompiler(MplsIntent.class, this); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| intentManager.unregisterCompiler(MplsIntent.class); |
| } |
| |
| @Override |
| public List<Intent> compile(MplsIntent intent, List<Intent> installable, |
| Set<LinkResourceAllocations> resources) { |
| ConnectPoint ingressPoint = intent.ingressPoint(); |
| ConnectPoint egressPoint = intent.egressPoint(); |
| |
| if (ingressPoint.deviceId().equals(egressPoint.deviceId())) { |
| List<Link> links = asList(createEdgeLink(ingressPoint, true), createEdgeLink(egressPoint, false)); |
| return asList(createPathIntent(new DefaultPath(PID, links, DEFAULT_COST), intent)); |
| } |
| |
| List<Link> links = new ArrayList<>(); |
| Path path = getPath(intent, ingressPoint.deviceId(), |
| egressPoint.deviceId()); |
| |
| links.add(createEdgeLink(ingressPoint, true)); |
| links.addAll(path.links()); |
| |
| links.add(createEdgeLink(egressPoint, false)); |
| |
| return asList(createPathIntent(new DefaultPath(PID, links, path.cost(), |
| path.annotations()), intent)); |
| } |
| |
| /** |
| * Creates a path intent from the specified path and original |
| * connectivity intent. |
| * |
| * @param path path to create an intent for |
| * @param intent original intent |
| */ |
| private Intent createPathIntent(Path path, |
| MplsIntent intent) { |
| return MplsPathIntent.builder() |
| .appId(intent.appId()) |
| .selector(intent.selector()) |
| .treatment(intent.treatment()) |
| .path(path) |
| .ingressLabel(intent.ingressLabel()) |
| .egressLabel(intent.egressLabel()) |
| .constraints(intent.constraints()) |
| .priority(intent.priority()) |
| .build(); |
| } |
| |
| |
| } |