| /* |
| * 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.incubator.net.virtual.impl; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.util.concurrent.Futures; |
| import org.onlab.metrics.MetricsService; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.ControllerNode; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.cluster.RoleInfo; |
| import org.onosproject.core.MetricsHelper; |
| import org.onosproject.incubator.net.virtual.NetworkId; |
| import org.onosproject.incubator.net.virtual.VirtualDevice; |
| import org.onosproject.incubator.net.virtual.VirtualNetworkMastershipStore; |
| import org.onosproject.incubator.net.virtual.VirtualNetworkService; |
| import org.onosproject.incubator.net.virtual.event.AbstractVirtualListenerManager; |
| import org.onosproject.mastership.MastershipAdminService; |
| import org.onosproject.mastership.MastershipEvent; |
| import org.onosproject.mastership.MastershipListener; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.mastership.MastershipStoreDelegate; |
| import org.onosproject.mastership.MastershipTerm; |
| import org.onosproject.mastership.MastershipTermService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.MastershipRole; |
| import org.slf4j.Logger; |
| import com.codahale.metrics.Timer; |
| |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.metrics.MetricsUtil.startTimer; |
| import static org.onlab.metrics.MetricsUtil.stopTimer; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| public class VirtualNetworkMastershipManager |
| extends AbstractVirtualListenerManager<MastershipEvent, MastershipListener> |
| implements MastershipService, MastershipAdminService, MastershipTermService, |
| MetricsHelper { |
| |
| private static final String NODE_ID_NULL = "Node ID cannot be null"; |
| private static final String DEVICE_ID_NULL = "Device ID cannot be null"; |
| private static final String ROLE_NULL = "Mastership role cannot be null"; |
| |
| private final Logger log = getLogger(getClass()); |
| |
| protected ClusterService clusterService; |
| |
| VirtualNetworkMastershipStore store; |
| MastershipStoreDelegate storeDelegate; |
| |
| private NodeId localNodeId; |
| private Timer requestRoleTimer; |
| |
| /** |
| * Creates a new VirtualNetworkMastershipManager object. |
| * |
| * @param manager virtual network manager service |
| * @param networkId virtual network identifier |
| */ |
| public VirtualNetworkMastershipManager(VirtualNetworkService manager, NetworkId networkId) { |
| super(manager, networkId, MastershipEvent.class); |
| |
| clusterService = serviceDirectory.get(ClusterService.class); |
| |
| store = serviceDirectory.get(VirtualNetworkMastershipStore.class); |
| this.storeDelegate = new InternalDelegate(); |
| store.setDelegate(networkId, this.storeDelegate); |
| |
| requestRoleTimer = createTimer("Virtual-mastership", "requestRole", "responseTime"); |
| localNodeId = clusterService.getLocalNode().id(); |
| } |
| |
| @Override |
| public CompletableFuture<Void> setRole(NodeId nodeId, DeviceId deviceId, |
| MastershipRole role) { |
| checkNotNull(nodeId, NODE_ID_NULL); |
| checkNotNull(deviceId, DEVICE_ID_NULL); |
| checkNotNull(role, ROLE_NULL); |
| |
| CompletableFuture<MastershipEvent> eventFuture = null; |
| |
| switch (role) { |
| case MASTER: |
| eventFuture = store.setMaster(networkId, nodeId, deviceId); |
| break; |
| case STANDBY: |
| eventFuture = store.setStandby(networkId, nodeId, deviceId); |
| break; |
| case NONE: |
| eventFuture = store.relinquishRole(networkId, nodeId, deviceId); |
| break; |
| default: |
| log.info("Unknown role; ignoring"); |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| return eventFuture.thenAccept(this::post).thenApply(v -> null); |
| } |
| |
| @Override |
| public MastershipRole getLocalRole(DeviceId deviceId) { |
| checkNotNull(deviceId, DEVICE_ID_NULL); |
| |
| return store.getRole(networkId, localNodeId, deviceId); |
| } |
| |
| @Override |
| public CompletableFuture<MastershipRole> requestRoleFor(DeviceId deviceId) { |
| checkNotNull(deviceId, DEVICE_ID_NULL); |
| |
| final Timer.Context timer = startTimer(requestRoleTimer); |
| return store.requestRole(networkId, deviceId) |
| .whenComplete((result, error) -> stopTimer(timer)); |
| } |
| |
| @Override |
| public CompletableFuture<Void> relinquishMastership(DeviceId deviceId) { |
| return store.relinquishRole(networkId, localNodeId, deviceId) |
| .thenAccept(this::post) |
| .thenApply(v -> null); |
| } |
| |
| @Override |
| public NodeId getMasterFor(DeviceId deviceId) { |
| checkNotNull(deviceId, DEVICE_ID_NULL); |
| |
| return store.getMaster(networkId, deviceId); |
| } |
| |
| @Override |
| public RoleInfo getNodesFor(DeviceId deviceId) { |
| checkNotNull(deviceId, DEVICE_ID_NULL); |
| |
| return store.getNodes(networkId, deviceId); |
| } |
| |
| @Override |
| public Set<DeviceId> getDevicesOf(NodeId nodeId) { |
| checkNotNull(nodeId, NODE_ID_NULL); |
| |
| return store.getDevices(networkId, nodeId); |
| } |
| |
| @Override |
| public MastershipTerm getMastershipTerm(DeviceId deviceId) { |
| return store.getTermFor(networkId, deviceId); |
| } |
| |
| @Override |
| public MetricsService metricsService() { |
| //TODO: support metric service for virtual network |
| log.warn("Currently, virtual network does not support metric service."); |
| return null; |
| } |
| |
| @Override |
| public void balanceRoles() { |
| //FIXME: More advanced logic for balancing virtual network roles. |
| List<ControllerNode> nodes = clusterService.getNodes().stream() |
| .filter(n -> clusterService.getState(n.id()) |
| .equals(ControllerNode.State.ACTIVE)) |
| .collect(Collectors.toList()); |
| |
| nodes.sort(Comparator.comparing(ControllerNode::id)); |
| |
| //Pick a node using network Id, |
| NodeId masterNode = nodes.get((int) ((networkId.id() - 1) % nodes.size())).id(); |
| |
| List<CompletableFuture<Void>> setRoleFutures = Lists.newLinkedList(); |
| for (VirtualDevice device : manager.getVirtualDevices(networkId)) { |
| setRoleFutures.add(setRole(masterNode, device.id(), MastershipRole.MASTER)); |
| } |
| |
| CompletableFuture<Void> balanceRolesFuture = CompletableFuture.allOf( |
| setRoleFutures.toArray(new CompletableFuture[setRoleFutures.size()])); |
| |
| Futures.getUnchecked(balanceRolesFuture); |
| } |
| |
| public class InternalDelegate implements MastershipStoreDelegate { |
| @Override |
| public void notify(MastershipEvent event) { |
| post(event); |
| } |
| } |
| } |