| /* |
| * Copyright 2017-present 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.openstacknode.impl; |
| |
| import com.google.common.base.Strings; |
| 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.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| import org.onosproject.openstacknode.api.OpenstackNodeConfig; |
| import org.onosproject.openstacknode.api.OpenstackNode; |
| import org.onosproject.openstacknode.api.OpenstackNodeAdminService; |
| import org.onosproject.openstacknode.api.OpenstackNodeEvent; |
| import org.onosproject.openstacknode.api.OpenstackNodeListener; |
| import org.onosproject.openstacknode.api.OpenstackNodeService; |
| import org.onosproject.openstacknode.api.OpenstackNodeStore; |
| import org.onosproject.openstacknode.api.OpenstackNodeStoreDelegate; |
| import org.slf4j.Logger; |
| |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| 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.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Service administering the inventory of openstack nodes. |
| */ |
| @Service |
| @Component(immediate = true) |
| public class OpenstackNodeManager extends ListenerRegistry<OpenstackNodeEvent, OpenstackNodeListener> |
| implements OpenstackNodeService, OpenstackNodeAdminService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final String MSG_NODE = "OpenStack node %s %s"; |
| private static final String MSG_CREATED = "created"; |
| private static final String MSG_UPDATED = "updated"; |
| private static final String MSG_REMOVED = "removed"; |
| |
| private static final String ERR_NULL_NODE = "OpenStack node cannot be null"; |
| private static final String ERR_NULL_HOSTNAME = "OpenStack node hostname cannot be null"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackNodeStore osNodeStore; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry configRegistry; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private final ConfigFactory configFactory = |
| new ConfigFactory<ApplicationId, OpenstackNodeConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, OpenstackNodeConfig.class, "openstacknode") { |
| @Override |
| public OpenstackNodeConfig createConfig() { |
| return new OpenstackNodeConfig(); |
| } |
| }; |
| |
| private final NetworkConfigListener configListener = new InternalConfigListener(); |
| private final OpenstackNodeStoreDelegate delegate = new InternalNodeStoreDelegate(); |
| |
| private ApplicationId appId; |
| private NodeId localNode; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_ID); |
| osNodeStore.setDelegate(delegate); |
| |
| localNode = clusterService.getLocalNode().id(); |
| leadershipService.runForLeadership(appId.name()); |
| |
| configRegistry.registerConfigFactory(configFactory); |
| configRegistry.addListener(configListener); |
| |
| readConfiguration(); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| osNodeStore.unsetDelegate(delegate); |
| configRegistry.removeListener(configListener); |
| configRegistry.unregisterConfigFactory(configFactory); |
| |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createNode(OpenstackNode osNode) { |
| checkNotNull(osNode, ERR_NULL_NODE); |
| osNodeStore.createNode(osNode); |
| log.info(String.format(MSG_NODE, osNode.hostname(), MSG_CREATED)); |
| } |
| |
| @Override |
| public void updateNode(OpenstackNode osNode) { |
| checkNotNull(osNode, ERR_NULL_NODE); |
| osNodeStore.updateNode(osNode); |
| log.info(String.format(MSG_NODE, osNode.hostname(), MSG_UPDATED)); |
| } |
| |
| @Override |
| public OpenstackNode removeNode(String hostname) { |
| checkArgument(!Strings.isNullOrEmpty(hostname), ERR_NULL_HOSTNAME); |
| OpenstackNode osNode = osNodeStore.removeNode(hostname); |
| log.info(String.format(MSG_NODE, hostname, MSG_REMOVED)); |
| return osNode; |
| } |
| |
| @Override |
| public Set<OpenstackNode> nodes() { |
| return osNodeStore.nodes(); |
| } |
| |
| @Override |
| public Set<OpenstackNode> nodes(OpenstackNode.NodeType type) { |
| Set<OpenstackNode> osNodes = osNodeStore.nodes().stream() |
| .filter(osNode -> Objects.equals(osNode.type(), type)) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(osNodes); |
| } |
| |
| @Override |
| public Set<OpenstackNode> completeNodes() { |
| Set<OpenstackNode> osNodes = osNodeStore.nodes().stream() |
| .filter(osNode -> Objects.equals(osNode.state(), COMPLETE)) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(osNodes); |
| } |
| |
| @Override |
| public Set<OpenstackNode> completeNodes(OpenstackNode.NodeType type) { |
| Set<OpenstackNode> osNodes = osNodeStore.nodes().stream() |
| .filter(osNode -> osNode.type() == type && |
| Objects.equals(osNode.state(), COMPLETE)) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(osNodes); |
| } |
| |
| @Override |
| public OpenstackNode node(String hostname) { |
| return osNodeStore.node(hostname); |
| } |
| |
| @Override |
| public OpenstackNode node(DeviceId deviceId) { |
| OpenstackNode result = osNodeStore.nodes().stream() |
| .filter(osNode -> Objects.equals(osNode.intgBridge(), deviceId) || |
| Objects.equals(osNode.ovsdb(), deviceId) || |
| Objects.equals(osNode.routerBridge(), deviceId)) |
| .findFirst().orElse(null); |
| return result; |
| } |
| |
| private class InternalNodeStoreDelegate implements OpenstackNodeStoreDelegate { |
| |
| @Override |
| public void notify(OpenstackNodeEvent event) { |
| if (event != null) { |
| log.trace("send openstack node event {}", event); |
| process(event); |
| } |
| } |
| } |
| |
| private void readConfiguration() { |
| OpenstackNodeConfig config = configRegistry.getConfig(appId, OpenstackNodeConfig.class); |
| if (config == null) { |
| log.debug("No configuration found"); |
| return; |
| } |
| |
| log.info("Read openstack node configurations..."); |
| Set<String> hostnames = config.openstackNodes().stream() |
| .map(OpenstackNode::hostname) |
| .collect(Collectors.toSet()); |
| nodes().stream().filter(osNode -> !hostnames.contains(osNode.hostname())) |
| .forEach(osNode -> removeNode(osNode.hostname())); |
| |
| config.openstackNodes().forEach(osNode -> { |
| OpenstackNode existing = node(osNode.hostname()); |
| if (existing == null) { |
| createNode(osNode); |
| } else if (!existing.equals(osNode)) { |
| updateNode(osNode); |
| } |
| }); |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| NodeId leaderNodeId = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNode, leaderNodeId)) { |
| // do not allow to proceed without leadership |
| return; |
| } |
| |
| if (!event.configClass().equals(OpenstackNodeConfig.class)) { |
| return; |
| } |
| |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| case CONFIG_UPDATED: |
| eventExecutor.execute(OpenstackNodeManager.this::readConfiguration); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |