| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.openstacknetworking.impl; |
| |
| import com.google.common.collect.ImmutableSet; |
| 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.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.openstacknetworking.api.InstancePort; |
| import org.onosproject.openstacknetworking.api.InstancePortEvent; |
| import org.onosproject.openstacknetworking.api.InstancePortStore; |
| import org.onosproject.openstacknetworking.api.InstancePortStoreDelegate; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.MapEvent; |
| import org.onosproject.store.service.MapEventListener; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.store.service.Versioned; |
| import org.slf4j.Logger; |
| |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.ACTIVE; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.INACTIVE; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.MIGRATED; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.MIGRATING; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.REMOVE_PENDING; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_MIGRATION_ENDED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_MIGRATION_STARTED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_PORT_DETECTED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_PORT_UPDATED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_PORT_VANISHED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_RESTARTED; |
| import static org.onosproject.openstacknetworking.api.InstancePortEvent.Type.OPENSTACK_INSTANCE_TERMINATED; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Manages the inventory of openstack instance port using a {@code ConsistentMap}. |
| */ |
| @Service |
| @Component(immediate = true) |
| public class DistributedInstancePortStore |
| extends AbstractStore<InstancePortEvent, InstancePortStoreDelegate> |
| implements InstancePortStore { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final String ERR_NOT_FOUND = " does not exist"; |
| private static final String ERR_DUPLICATE = " already exists"; |
| |
| private static final KryoNamespace SERIALIZER_INSTANCE_PORT = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(InstancePort.class) |
| .register(DefaultInstancePort.class) |
| .register(InstancePort.State.class) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private final MapEventListener<String, InstancePort> |
| instancePortMapListener = new InstancePortMapListener(); |
| |
| private ConsistentMap<String, InstancePort> instancePortStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| |
| instancePortStore = storageService.<String, InstancePort>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_INSTANCE_PORT)) |
| .withName("openstack-instanceport-store") |
| .withApplicationId(appId) |
| .build(); |
| instancePortStore.addListener(instancePortMapListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| instancePortStore.removeListener(instancePortMapListener); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createInstancePort(InstancePort port) { |
| instancePortStore.compute(port.portId(), (id, existing) -> { |
| final String error = port.portId() + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return port; |
| }); |
| } |
| |
| @Override |
| public void updateInstancePort(InstancePort port) { |
| instancePortStore.compute(port.portId(), (id, existing) -> { |
| final String error = port.portId() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return port; |
| }); |
| } |
| |
| @Override |
| public InstancePort removeInstancePort(String portId) { |
| Versioned<InstancePort> port = instancePortStore.remove(portId); |
| return port == null ? null : port.value(); |
| } |
| |
| @Override |
| public InstancePort instancePort(String portId) { |
| return instancePortStore.asJavaMap().get(portId); |
| } |
| |
| @Override |
| public Set<InstancePort> instancePorts() { |
| return ImmutableSet.copyOf(instancePortStore.asJavaMap().values()); |
| } |
| |
| @Override |
| public void clear() { |
| instancePortStore.clear(); |
| } |
| |
| private class InstancePortMapListener implements MapEventListener<String, InstancePort> { |
| |
| @Override |
| public void event(MapEvent<String, InstancePort> event) { |
| switch (event.type()) { |
| case INSERT: |
| log.debug("Instance port created"); |
| eventExecutor.execute(() -> |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_PORT_DETECTED, |
| event.newValue().value())) |
| ); |
| break; |
| case UPDATE: |
| log.debug("Instance port updated"); |
| eventExecutor.execute(() -> processInstancePortUpdate(event)); |
| break; |
| case REMOVE: |
| log.debug("Instance port removed"); |
| eventExecutor.execute(() -> |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_PORT_VANISHED, |
| event.oldValue().value())) |
| ); |
| break; |
| default: |
| log.error("Unsupported instance port event type"); |
| break; |
| } |
| } |
| |
| private void processInstancePortUpdate(MapEvent<String, InstancePort> event) { |
| InstancePort.State oldState = event.oldValue().value().state(); |
| InstancePort.State newState = event.newValue().value().state(); |
| |
| if ((oldState == ACTIVE || oldState == INACTIVE) && newState == MIGRATING) { |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_MIGRATION_STARTED, |
| event.newValue().value())); |
| return; |
| } |
| |
| if (oldState == MIGRATING && newState == MIGRATED) { |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_MIGRATION_ENDED, |
| event.newValue().value())); |
| updateInstancePort(event.newValue().value().updateState(ACTIVE)); |
| return; |
| } |
| |
| if (oldState == ACTIVE && newState == INACTIVE) { |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_TERMINATED, |
| event.newValue().value())); |
| return; |
| } |
| |
| if (oldState == INACTIVE && newState == ACTIVE) { |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_RESTARTED, |
| event.newValue().value())); |
| return; |
| } |
| |
| // this should be auto-transition |
| if (oldState == MIGRATED && newState == ACTIVE) { |
| return; |
| } |
| |
| // we do not trigger instance port update for pending state transition |
| if (newState == REMOVE_PENDING) { |
| return; |
| } |
| |
| notifyDelegate(new InstancePortEvent( |
| OPENSTACK_INSTANCE_PORT_UPDATED, |
| event.newValue().value())); |
| } |
| } |
| } |