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Diffstat (limited to 'framework/src/onos/core/net/src/main/java/org/onosproject/net/link/impl/LinkManager.java')
| -rw-r--r-- | framework/src/onos/core/net/src/main/java/org/onosproject/net/link/impl/LinkManager.java | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/link/impl/LinkManager.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/link/impl/LinkManager.java deleted file mode 100644 index d6f72fd9..00000000 --- a/framework/src/onos/core/net/src/main/java/org/onosproject/net/link/impl/LinkManager.java +++ /dev/null @@ -1,364 +0,0 @@ -/* - * Copyright 2014 Open Networking Laboratory - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -package org.onosproject.net.link.impl; - -import com.google.common.collect.FluentIterable; -import com.google.common.collect.Sets; - -import org.apache.felix.scr.annotations.Activate; -import org.apache.felix.scr.annotations.Component; -import org.apache.felix.scr.annotations.Deactivate; -import org.apache.felix.scr.annotations.Reference; -import org.apache.felix.scr.annotations.ReferenceCardinality; -import org.apache.felix.scr.annotations.Service; -import org.onosproject.net.provider.AbstractListenerProviderRegistry; -import org.onosproject.net.provider.ProviderId; -import org.onosproject.net.config.NetworkConfigEvent; -import org.onosproject.net.config.NetworkConfigListener; -import org.onosproject.net.config.NetworkConfigService; -import org.onosproject.net.config.basics.BasicLinkConfig; -import org.onosproject.net.ConnectPoint; -import org.onosproject.net.DeviceId; -import org.onosproject.net.Link; -import org.onosproject.net.Link.State; -import org.onosproject.net.LinkKey; -import org.onosproject.net.MastershipRole; -import org.onosproject.net.device.DeviceEvent; -import org.onosproject.net.device.DeviceListener; -import org.onosproject.net.device.DeviceService; -import org.onosproject.net.link.LinkAdminService; -import org.onosproject.net.link.LinkDescription; -import org.onosproject.net.link.LinkEvent; -import org.onosproject.net.link.LinkListener; -import org.onosproject.net.link.LinkProvider; -import org.onosproject.net.link.LinkProviderRegistry; -import org.onosproject.net.link.LinkProviderService; -import org.onosproject.net.link.LinkService; -import org.onosproject.net.link.LinkStore; -import org.onosproject.net.link.LinkStoreDelegate; -import org.onosproject.net.provider.AbstractProviderService; -import org.slf4j.Logger; - -import java.util.Set; - -import static com.google.common.base.Preconditions.checkNotNull; -import static org.onosproject.net.LinkKey.linkKey; -import static org.onosproject.security.AppGuard.checkPermission; -import static org.slf4j.LoggerFactory.getLogger; -import static org.onosproject.security.AppPermission.Type.*; - - -/** - * Provides basic implementation of the link SB & NB APIs. - */ -@Component(immediate = true) -@Service -public class LinkManager - extends AbstractListenerProviderRegistry<LinkEvent, LinkListener, LinkProvider, LinkProviderService> - implements LinkService, LinkAdminService, LinkProviderRegistry { - - private static final String DEVICE_ID_NULL = "Device ID cannot be null"; - private static final String LINK_DESC_NULL = "Link description cannot be null"; - private static final String CONNECT_POINT_NULL = "Connection point cannot be null"; - - private final Logger log = getLogger(getClass()); - - private final LinkStoreDelegate delegate = new InternalStoreDelegate(); - - private final DeviceListener deviceListener = new InternalDeviceListener(); - - private final NetworkConfigListener networkConfigListener = new InternalNetworkConfigListener(); - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected LinkStore store; - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected DeviceService deviceService; - - @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) - protected NetworkConfigService networkConfigService; - - @Activate - public void activate() { - store.setDelegate(delegate); - eventDispatcher.addSink(LinkEvent.class, listenerRegistry); - deviceService.addListener(deviceListener); - networkConfigService.addListener(networkConfigListener); - log.info("Started"); - } - - @Deactivate - public void deactivate() { - store.unsetDelegate(delegate); - eventDispatcher.removeSink(LinkEvent.class); - deviceService.removeListener(deviceListener); - networkConfigService.removeListener(networkConfigListener); - log.info("Stopped"); - } - - @Override - public int getLinkCount() { - checkPermission(LINK_READ); - return store.getLinkCount(); - } - - @Override - public Iterable<Link> getLinks() { - checkPermission(LINK_READ); - return store.getLinks(); - } - - @Override - public Iterable<Link> getActiveLinks() { - checkPermission(LINK_READ); - return FluentIterable.from(getLinks()) - .filter(input -> input.state() == State.ACTIVE); - } - - @Override - public Set<Link> getDeviceLinks(DeviceId deviceId) { - checkPermission(LINK_READ); - checkNotNull(deviceId, DEVICE_ID_NULL); - return Sets.union(store.getDeviceEgressLinks(deviceId), - store.getDeviceIngressLinks(deviceId)); - } - - @Override - public Set<Link> getDeviceEgressLinks(DeviceId deviceId) { - checkPermission(LINK_READ); - checkNotNull(deviceId, DEVICE_ID_NULL); - return store.getDeviceEgressLinks(deviceId); - } - - @Override - public Set<Link> getDeviceIngressLinks(DeviceId deviceId) { - checkPermission(LINK_READ); - checkNotNull(deviceId, DEVICE_ID_NULL); - return store.getDeviceIngressLinks(deviceId); - } - - @Override - public Set<Link> getLinks(ConnectPoint connectPoint) { - checkPermission(LINK_READ); - checkNotNull(connectPoint, CONNECT_POINT_NULL); - return Sets.union(store.getEgressLinks(connectPoint), - store.getIngressLinks(connectPoint)); - } - - @Override - public Set<Link> getEgressLinks(ConnectPoint connectPoint) { - checkPermission(LINK_READ); - checkNotNull(connectPoint, CONNECT_POINT_NULL); - return store.getEgressLinks(connectPoint); - } - - @Override - public Set<Link> getIngressLinks(ConnectPoint connectPoint) { - checkPermission(LINK_READ); - checkNotNull(connectPoint, CONNECT_POINT_NULL); - return store.getIngressLinks(connectPoint); - } - - @Override - public Link getLink(ConnectPoint src, ConnectPoint dst) { - checkPermission(LINK_READ); - checkNotNull(src, CONNECT_POINT_NULL); - checkNotNull(dst, CONNECT_POINT_NULL); - return store.getLink(src, dst); - } - - @Override - public void removeLinks(ConnectPoint connectPoint) { - if (deviceService.getRole(connectPoint.deviceId()) != MastershipRole.MASTER) { - return; - } - removeLinks(getLinks(connectPoint), false); - } - - @Override - public void removeLinks(DeviceId deviceId) { - if (deviceService.getRole(deviceId) != MastershipRole.MASTER) { - return; - } - removeLinks(getDeviceLinks(deviceId), false); - } - - @Override - public void removeLink(ConnectPoint src, ConnectPoint dst) { - post(store.removeLink(src, dst)); - } - - private boolean isAllowed(BasicLinkConfig cfg) { - return (cfg == null || cfg.isAllowed()); - } - - // Auxiliary interceptor for device remove events to prune links that - // are associated with the removed device or its port. - private class InternalDeviceListener implements DeviceListener { - @Override - public void event(DeviceEvent event) { - if (event.type() == DeviceEvent.Type.DEVICE_REMOVED) { - removeLinks(event.subject().id()); - } else if (event.type() == DeviceEvent.Type.PORT_REMOVED) { - removeLinks(new ConnectPoint(event.subject().id(), - event.port().number())); - } - } - } - - @Override - protected LinkProviderService createProviderService(LinkProvider provider) { - return new InternalLinkProviderService(provider); - } - - // Personalized link provider service issued to the supplied provider. - private class InternalLinkProviderService - extends AbstractProviderService<LinkProvider> - implements LinkProviderService { - - InternalLinkProviderService(LinkProvider provider) { - super(provider); - } - - @Override - public void linkDetected(LinkDescription linkDescription) { - checkNotNull(linkDescription, LINK_DESC_NULL); - checkValidity(); - linkDescription = validateLink(linkDescription); - if (linkDescription != null) { - LinkEvent event = store.createOrUpdateLink(provider().id(), linkDescription); - if (event != null) { - log.info("Link {} detected", linkDescription); - post(event); - } - } - } - - // returns a LinkDescription made from the union of the BasicLinkConfig - // annotations if it exists - private LinkDescription validateLink(LinkDescription linkDescription) { - // TODO Investigate whether this can be made more efficient - BasicLinkConfig cfg = networkConfigService.getConfig(linkKey(linkDescription.src(), - linkDescription.dst()), - BasicLinkConfig.class); - BasicLinkConfig cfgTwo = networkConfigService.getConfig(linkKey(linkDescription.dst(), - linkDescription.src()), - BasicLinkConfig.class); - if (isAllowed(cfg) && isAllowed(cfgTwo)) { - return BasicLinkOperator.combine(cfg, linkDescription); - } else { - log.trace("Link " + linkDescription.toString() + " is not allowed"); - return null; - } - } - - @Override - public void linkVanished(LinkDescription linkDescription) { - checkNotNull(linkDescription, LINK_DESC_NULL); - checkValidity(); - - ConnectPoint src = linkDescription.src(); - ConnectPoint dst = linkDescription.dst(); - - LinkEvent event = store.removeOrDownLink(src, dst); - if (event != null) { - log.info("Link {} vanished", linkDescription); - post(event); - } - } - - @Override - public void linksVanished(ConnectPoint connectPoint) { - checkNotNull(connectPoint, "Connect point cannot be null"); - checkValidity(); - - log.debug("Links for connection point {} vanished", connectPoint); - // FIXME: This will remove links registered by other providers - removeLinks(getLinks(connectPoint), true); - } - - @Override - public void linksVanished(DeviceId deviceId) { - checkNotNull(deviceId, DEVICE_ID_NULL); - checkValidity(); - - log.debug("Links for device {} vanished", deviceId); - removeLinks(getDeviceLinks(deviceId), true); - } - } - - // Removes all links in the specified set and emits appropriate events. - private void removeLinks(Set<Link> links, boolean isSoftRemove) { - for (Link link : links) { - LinkEvent event = isSoftRemove ? - store.removeOrDownLink(link.src(), link.dst()) : - store.removeLink(link.src(), link.dst()); - if (event != null) { - log.info("Link {} removed/vanished", event.subject()); - post(event); - } - } - } - - // Store delegate to re-post events emitted from the store. - private class InternalStoreDelegate implements LinkStoreDelegate { - @Override - public void notify(LinkEvent event) { - post(event); - } - } - - // listens for NetworkConfigEvents of type BasicLinkConfig and removes - // links that the config does not allow - private class InternalNetworkConfigListener implements NetworkConfigListener { - - @Override - public boolean isRelevant(NetworkConfigEvent event) { - return event.configClass().equals(BasicLinkConfig.class) - && (event.type() == NetworkConfigEvent.Type.CONFIG_ADDED - || event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED); - } - - @Override - public void event(NetworkConfigEvent event) { - LinkKey lk = (LinkKey) event.subject(); - BasicLinkConfig cfg = networkConfigService.getConfig(lk, BasicLinkConfig.class); - - if (!isAllowed(cfg)) { - log.info("Kicking out links between {} and {}", lk.src(), lk.dst()); - removeLink(lk.src(), lk.dst()); - removeLink(lk.dst(), lk.src()); - return; - } - Link link = getLink(lk.src(), lk.dst()); - LinkDescription fldesc; - LinkDescription rldesc; - if (link == null) { - fldesc = BasicLinkOperator.descriptionOf(lk.src(), lk.dst(), cfg); - rldesc = BasicLinkOperator.descriptionOf(lk.dst(), lk.src(), cfg); - } else { - fldesc = BasicLinkOperator.combine(cfg, - BasicLinkOperator.descriptionOf(lk.src(), lk.dst(), link)); - rldesc = BasicLinkOperator.combine(cfg, - BasicLinkOperator.descriptionOf(lk.dst(), lk.src(), link)); - } - // XXX think of sane way to fetch the LinkProvider - store.createOrUpdateLink(ProviderId.NONE, fldesc); - store.createOrUpdateLink(ProviderId.NONE, rldesc); - } - - } -} |