Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | package org.onosproject.ui.impl.topo; |
| 19 | |
| 20 | import com.fasterxml.jackson.databind.node.ObjectNode; |
| 21 | import org.apache.felix.scr.annotations.Activate; |
| 22 | import org.apache.felix.scr.annotations.Component; |
| 23 | import org.apache.felix.scr.annotations.Deactivate; |
| 24 | import org.apache.felix.scr.annotations.Reference; |
| 25 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 26 | import org.apache.felix.scr.annotations.Service; |
| 27 | import org.onosproject.cluster.ClusterEvent; |
| 28 | import org.onosproject.cluster.ClusterService; |
| 29 | import org.onosproject.cluster.ControllerNode; |
| 30 | import org.onosproject.event.AbstractListenerRegistry; |
| 31 | import org.onosproject.event.EventDeliveryService; |
| 32 | import org.onosproject.mastership.MastershipService; |
| 33 | import org.onosproject.net.Device; |
| 34 | import org.onosproject.net.Host; |
| 35 | import org.onosproject.net.Link; |
| 36 | import org.onosproject.net.device.DeviceEvent; |
| 37 | import org.onosproject.net.device.DeviceService; |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 38 | import org.onosproject.net.flow.FlowRuleService; |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 39 | import org.onosproject.net.host.HostEvent; |
| 40 | import org.onosproject.net.host.HostService; |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 41 | import org.onosproject.net.intent.IntentService; |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 42 | import org.onosproject.net.link.LinkEvent; |
| 43 | import org.onosproject.net.link.LinkService; |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 44 | import org.onosproject.net.topology.Topology; |
| 45 | import org.onosproject.net.topology.TopologyService; |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 46 | import org.slf4j.Logger; |
| 47 | import org.slf4j.LoggerFactory; |
| 48 | |
| 49 | import java.util.ArrayList; |
| 50 | import java.util.Collections; |
| 51 | import java.util.Comparator; |
| 52 | import java.util.List; |
| 53 | |
| 54 | import static org.onosproject.cluster.ClusterEvent.Type.INSTANCE_ADDED; |
| 55 | import static org.onosproject.net.device.DeviceEvent.Type.DEVICE_ADDED; |
| 56 | import static org.onosproject.net.host.HostEvent.Type.HOST_ADDED; |
| 57 | import static org.onosproject.net.link.LinkEvent.Type.LINK_ADDED; |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 58 | import static org.onosproject.ui.impl.topo.TopoUiEvent.Type.SUMMARY_UPDATE; |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 59 | |
| 60 | |
| 61 | /** |
| 62 | * Maintains a UI-centric model of the topology, as inferred from interactions |
| 63 | * with the different (device, host, link, ...) services. Will serve up this |
| 64 | * model to anyone who cares to {@link TopoUiListener listen}. |
| 65 | */ |
| 66 | @Component(immediate = true) |
| 67 | @Service |
| 68 | public class TopoUiModelManager implements TopoUiModelService { |
| 69 | |
| 70 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 71 | |
| 72 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 73 | protected ClusterService clusterService; |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 76 | protected DeviceService deviceService; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | protected LinkService linkService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected HostService hostService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 85 | protected MastershipService mastershipService; |
| 86 | |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 87 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 88 | protected IntentService intentService; |
| 89 | |
| 90 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 91 | protected FlowRuleService flowRuleService; |
| 92 | |
| 93 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 94 | protected TopologyService topologyService; |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 95 | |
| 96 | |
| 97 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 98 | protected EventDeliveryService eventDispatcher; |
| 99 | |
| 100 | |
| 101 | private AbstractListenerRegistry<TopoUiEvent, TopoUiListener> |
| 102 | listenerRegistry = new AbstractListenerRegistry<>(); |
| 103 | |
| 104 | |
| 105 | private final TopoMessageFactory messageFactory = new TopoMessageFactory(); |
| 106 | private final MetaDb metaDb = new MetaDb(); |
| 107 | |
| 108 | |
| 109 | @Activate |
| 110 | public void activate() { |
| 111 | eventDispatcher.addSink(TopoUiEvent.class, listenerRegistry); |
| 112 | messageFactory.injectServices( |
| 113 | metaDb, |
| 114 | clusterService, |
| 115 | deviceService, |
| 116 | linkService, |
| 117 | hostService, |
| 118 | mastershipService |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 119 | // TODO: others?? |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 120 | ); |
| 121 | log.info("Started"); |
| 122 | } |
| 123 | |
| 124 | @Deactivate |
| 125 | public void deactivate() { |
| 126 | eventDispatcher.removeSink(TopoUiEvent.class); |
| 127 | log.info("Stopped"); |
| 128 | } |
| 129 | |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 130 | |
| 131 | // TODO: figure out how to cull zombie listeners |
| 132 | // The problem is when one refreshes the GUI (topology view) |
| 133 | // a new instance of AltTopoViewMessageHandler is created and added |
| 134 | // as a listener, but we never got a TopoStop event, which is what |
| 135 | // causes the listener (for an AltTopoViewMessageHandler instance) to |
| 136 | // be removed. |
| 137 | // ==== Somehow need to tie this in to the GUI-disconnected event. |
| 138 | |
| 139 | |
| 140 | |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 141 | @Override |
| 142 | public void addListener(TopoUiListener listener) { |
| 143 | listenerRegistry.addListener(listener); |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public void removeListener(TopoUiListener listener) { |
| 148 | listenerRegistry.removeListener(listener); |
| 149 | } |
| 150 | |
| 151 | @Override |
| 152 | public List<ObjectNode> getInitialState() { |
| 153 | List<ObjectNode> results = new ArrayList<>(); |
| 154 | addInstances(results); |
| 155 | addDevices(results); |
| 156 | addLinks(results); |
| 157 | addHosts(results); |
| 158 | return results; |
| 159 | } |
| 160 | |
Simon Hunt | c54cd1b | 2015-05-11 13:43:44 -0700 | [diff] [blame] | 161 | @Override |
| 162 | public void startSummaryMonitoring() { |
| 163 | // TODO: set up periodic monitoring task |
| 164 | // send a summary now, and periodically... |
| 165 | post(new TopoUiEvent(SUMMARY_UPDATE, null)); |
| 166 | } |
| 167 | |
| 168 | @Override |
| 169 | public void stopSummaryMonitoring() { |
| 170 | // TODO: cancel monitoring task |
| 171 | |
| 172 | } |
| 173 | |
| 174 | @Override |
| 175 | public SummaryData getSummaryData() { |
| 176 | return new SummaryDataImpl(); |
| 177 | } |
| 178 | |
| 179 | // ===================================================================== |
| 180 | |
| 181 | private final class SummaryDataImpl implements SummaryData { |
| 182 | private final Topology topology = topologyService.currentTopology(); |
| 183 | |
| 184 | @Override |
| 185 | public int deviceCount() { |
| 186 | return topology.deviceCount(); |
| 187 | } |
| 188 | |
| 189 | @Override |
| 190 | public int linkCount() { |
| 191 | return topology.linkCount(); |
| 192 | } |
| 193 | |
| 194 | @Override |
| 195 | public int hostCount() { |
| 196 | return hostService.getHostCount(); |
| 197 | } |
| 198 | |
| 199 | @Override |
| 200 | public int clusterCount() { |
| 201 | return topology.clusterCount(); |
| 202 | } |
| 203 | |
| 204 | @Override |
| 205 | public long intentCount() { |
| 206 | return intentService.getIntentCount(); |
| 207 | } |
| 208 | |
| 209 | @Override |
| 210 | public int flowRuleCount() { |
| 211 | return flowRuleService.getFlowRuleCount(); |
| 212 | } |
| 213 | } |
| 214 | |
Simon Hunt | d7f7bcc | 2015-05-08 14:13:17 -0700 | [diff] [blame] | 215 | // ===================================================================== |
| 216 | |
| 217 | private static final Comparator<? super ControllerNode> NODE_COMPARATOR = |
| 218 | (o1, o2) -> o1.id().toString().compareTo(o2.id().toString()); |
| 219 | |
| 220 | // ===================================================================== |
| 221 | |
| 222 | private void addInstances(List<ObjectNode> results) { |
| 223 | List<ControllerNode> nodes = new ArrayList<>(clusterService.getNodes()); |
| 224 | Collections.sort(nodes, NODE_COMPARATOR); |
| 225 | for (ControllerNode node : nodes) { |
| 226 | ClusterEvent ev = new ClusterEvent(INSTANCE_ADDED, node); |
| 227 | results.add(messageFactory.instanceMessage(ev)); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | private void addDevices(List<ObjectNode> results) { |
| 232 | // Send optical first, others later -- for layered rendering |
| 233 | List<DeviceEvent> deferred = new ArrayList<>(); |
| 234 | |
| 235 | for (Device device : deviceService.getDevices()) { |
| 236 | DeviceEvent ev = new DeviceEvent(DEVICE_ADDED, device); |
| 237 | if (device.type() == Device.Type.ROADM) { |
| 238 | results.add(messageFactory.deviceMessage(ev)); |
| 239 | } else { |
| 240 | deferred.add(ev); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | for (DeviceEvent ev : deferred) { |
| 245 | results.add(messageFactory.deviceMessage(ev)); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | private void addLinks(List<ObjectNode> results) { |
| 250 | // Send optical first, others later -- for layered rendering |
| 251 | List<LinkEvent> deferred = new ArrayList<>(); |
| 252 | |
| 253 | for (Link link : linkService.getLinks()) { |
| 254 | LinkEvent ev = new LinkEvent(LINK_ADDED, link); |
| 255 | if (link.type() == Link.Type.OPTICAL) { |
| 256 | results.add(messageFactory.linkMessage(ev)); |
| 257 | } else { |
| 258 | deferred.add(ev); |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | for (LinkEvent ev : deferred) { |
| 263 | results.add(messageFactory.linkMessage(ev)); |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | private void addHosts(List<ObjectNode> results) { |
| 268 | for (Host host : hostService.getHosts()) { |
| 269 | HostEvent ev = new HostEvent(HOST_ADDED, host); |
| 270 | results.add(messageFactory.hostMessage(ev)); |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | // ===================================================================== |
| 275 | |
| 276 | private void post(TopoUiEvent event) { |
| 277 | if (event != null) { |
| 278 | eventDispatcher.post(event); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | // NOTE: session-independent state only |
| 283 | // private inner classes to listen to device/host/link events |
| 284 | // TODO.. |
| 285 | } |