| /* |
| * Copyright 2017-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.openstacknode.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.openstacknode.api.NodeState; |
| import org.onosproject.openstacknode.api.OpenstackNode; |
| import org.onosproject.openstacknode.api.OpenstackNodeEvent; |
| import org.onosproject.openstacknode.api.OpenstackNodeStore; |
| import org.onosproject.openstacknode.api.OpenstackNodeStoreDelegate; |
| import org.onosproject.openstacknode.api.OpenstackPhyInterface; |
| 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.Collection; |
| 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.openstacknode.api.NodeState.COMPLETE; |
| import static org.onosproject.openstacknode.api.NodeState.INCOMPLETE; |
| import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.CONTROLLER; |
| import static org.onosproject.openstacknode.api.OpenstackNodeEvent.Type.OPENSTACK_NODE_COMPLETE; |
| import static org.onosproject.openstacknode.api.OpenstackNodeEvent.Type.OPENSTACK_NODE_CREATED; |
| import static org.onosproject.openstacknode.api.OpenstackNodeEvent.Type.OPENSTACK_NODE_INCOMPLETE; |
| import static org.onosproject.openstacknode.api.OpenstackNodeEvent.Type.OPENSTACK_NODE_REMOVED; |
| import static org.onosproject.openstacknode.api.OpenstackNodeEvent.Type.OPENSTACK_NODE_UPDATED; |
| import static org.onosproject.store.service.MapEvent.Type.INSERT; |
| import static org.onosproject.store.service.MapEvent.Type.UPDATE; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of openstack node store using consistent map. |
| */ |
| @Service |
| @Component(immediate = true) |
| public class DistributedOpenstackNodeStore |
| extends AbstractStore<OpenstackNodeEvent, OpenstackNodeStoreDelegate> |
| implements OpenstackNodeStore { |
| |
| private 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_OPENSTACK_NODE = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(OpenstackNode.class) |
| .register(DefaultOpenstackNode.class) |
| .register(OpenstackNode.NodeType.class) |
| .register(NodeState.class) |
| .register(OpenstackPhyInterface.class) |
| .register(DefaultOpenstackPhyInterface.class) |
| .register(DefaultOpenstackAuth.class) |
| .register(DefaultOpenstackAuth.Perspective.class) |
| .register(DefaultOpenstackAuth.Protocol.class) |
| .register(Collection.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, OpenstackNode> osNodeMapListener = |
| new OpenstackNodeMapListener(); |
| private ConsistentMap<String, OpenstackNode> osNodeStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication("org.onosproject.openstacknode"); |
| osNodeStore = storageService.<String, OpenstackNode>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_OPENSTACK_NODE)) |
| .withName("openstack-nodestore") |
| .withApplicationId(appId) |
| .build(); |
| osNodeStore.addListener(osNodeMapListener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| osNodeStore.removeListener(osNodeMapListener); |
| eventExecutor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createNode(OpenstackNode osNode) { |
| osNodeStore.compute(osNode.hostname(), (hostname, existing) -> { |
| final String error = osNode.hostname() + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return osNode; |
| }); |
| } |
| |
| @Override |
| public void updateNode(OpenstackNode osNode) { |
| osNodeStore.compute(osNode.hostname(), (hostname, existing) -> { |
| final String error = osNode.hostname() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return osNode; |
| }); |
| } |
| |
| @Override |
| public OpenstackNode removeNode(String hostname) { |
| Versioned<OpenstackNode> osNode = osNodeStore.remove(hostname); |
| if (osNode == null) { |
| final String error = hostname + ERR_NOT_FOUND; |
| throw new IllegalArgumentException(error); |
| } |
| return osNode.value(); |
| } |
| |
| @Override |
| public Set<OpenstackNode> nodes() { |
| return ImmutableSet.copyOf(osNodeStore.asJavaMap().values()); |
| } |
| |
| @Override |
| public OpenstackNode node(String hostname) { |
| return osNodeStore.asJavaMap().get(hostname); |
| } |
| |
| /** |
| * An internal openstack node map listener. |
| */ |
| private class OpenstackNodeMapListener implements MapEventListener<String, OpenstackNode> { |
| |
| @Override |
| public void event(MapEvent<String, OpenstackNode> event) { |
| |
| OpenstackNode node; |
| |
| if (event.type() == INSERT || event.type() == UPDATE) { |
| node = event.newValue().value(); |
| } else { |
| node = event.oldValue().value(); |
| } |
| |
| // we do not notify the controller node related event |
| // controller node event should be handled in different way |
| if (node.type() == CONTROLLER) { |
| // TODO: need to find a way to check the controller node availability |
| log.info("node {} is detected", node.hostname()); |
| |
| return; |
| } |
| |
| switch (event.type()) { |
| case INSERT: |
| log.debug("OpenStack node created {}", event.newValue()); |
| eventExecutor.execute(() -> |
| notifyDelegate(new OpenstackNodeEvent( |
| OPENSTACK_NODE_CREATED, event.newValue().value() |
| ))); |
| break; |
| case UPDATE: |
| log.debug("OpenStack node updated {}", event.newValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new OpenstackNodeEvent( |
| OPENSTACK_NODE_UPDATED, |
| event.newValue().value() |
| )); |
| if (event.newValue().value().state() == COMPLETE) { |
| notifyDelegate(new OpenstackNodeEvent( |
| OPENSTACK_NODE_COMPLETE, |
| event.newValue().value() |
| )); |
| } else if (event.newValue().value().state() == INCOMPLETE) { |
| notifyDelegate(new OpenstackNodeEvent( |
| OPENSTACK_NODE_INCOMPLETE, |
| event.newValue().value() |
| )); |
| } |
| }); |
| break; |
| case REMOVE: |
| log.debug("OpenStack node removed {}", event.oldValue()); |
| eventExecutor.execute(() -> |
| notifyDelegate(new OpenstackNodeEvent( |
| OPENSTACK_NODE_REMOVED, event.oldValue().value() |
| ))); |
| break; |
| default: |
| // do nothing |
| break; |
| } |
| } |
| } |
| } |