Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [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 | package org.onosproject.provider.nil.link.impl; |
| 17 | |
| 18 | import static com.google.common.base.Strings.isNullOrEmpty; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 19 | import static org.onlab.util.Tools.namedThreads; |
| 20 | import static org.slf4j.LoggerFactory.getLogger; |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 21 | import static org.onlab.util.Tools.toHex; |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 22 | import static org.onosproject.net.MastershipRole.MASTER; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 23 | |
| 24 | import java.util.Dictionary; |
| 25 | import java.util.List; |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 26 | import java.util.Objects; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 27 | import java.util.concurrent.ConcurrentMap; |
| 28 | import java.util.concurrent.ExecutorService; |
| 29 | import java.util.concurrent.Executors; |
| 30 | import java.util.concurrent.TimeUnit; |
| 31 | |
| 32 | import org.apache.felix.scr.annotations.Activate; |
| 33 | import org.apache.felix.scr.annotations.Component; |
| 34 | import org.apache.felix.scr.annotations.Deactivate; |
Ayaka Koshibe | 7dc1d04 | 2015-01-21 15:28:03 -0800 | [diff] [blame] | 35 | import org.apache.felix.scr.annotations.Modified; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 36 | import org.apache.felix.scr.annotations.Property; |
| 37 | import org.apache.felix.scr.annotations.Reference; |
| 38 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 39 | import org.onosproject.cluster.ClusterService; |
| 40 | import org.onosproject.cluster.NodeId; |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 41 | import org.onosproject.mastership.MastershipService; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 42 | import org.onosproject.net.ConnectPoint; |
| 43 | import org.onosproject.net.Device; |
| 44 | import org.onosproject.net.DeviceId; |
| 45 | import org.onosproject.net.Link; |
| 46 | import org.onosproject.net.PortNumber; |
| 47 | import org.onosproject.net.device.DeviceEvent; |
| 48 | import org.onosproject.net.device.DeviceListener; |
| 49 | import org.onosproject.net.device.DeviceService; |
| 50 | import org.onosproject.net.link.DefaultLinkDescription; |
| 51 | import org.onosproject.net.link.LinkDescription; |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 52 | import org.onosproject.net.link.LinkEvent; |
| 53 | import org.onosproject.net.link.LinkListener; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 54 | import org.onosproject.net.link.LinkProvider; |
| 55 | import org.onosproject.net.link.LinkProviderRegistry; |
| 56 | import org.onosproject.net.link.LinkProviderService; |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 57 | import org.onosproject.net.link.LinkService; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 58 | import org.onosproject.net.provider.AbstractProvider; |
| 59 | import org.onosproject.net.provider.ProviderId; |
| 60 | import org.osgi.service.component.ComponentContext; |
| 61 | import org.slf4j.Logger; |
| 62 | |
| 63 | import com.google.common.collect.Lists; |
| 64 | import com.google.common.collect.Maps; |
| 65 | |
| 66 | /** |
| 67 | * Provider which advertises fake/nonexistent links to the core. To be used for |
| 68 | * benchmarking only. |
| 69 | */ |
| 70 | @Component(immediate = true) |
| 71 | public class NullLinkProvider extends AbstractProvider implements LinkProvider { |
| 72 | |
| 73 | private final Logger log = getLogger(getClass()); |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 76 | protected DeviceService deviceService; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 79 | protected MastershipService roleService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 82 | protected ClusterService nodeService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 85 | protected LinkProviderRegistry providerRegistry; |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 86 | private LinkService linkService; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 87 | |
| 88 | private LinkProviderService providerService; |
| 89 | |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 90 | private static final int DEFAULT_RATE = 0; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 91 | // For now, static switch port values |
| 92 | private static final PortNumber SRCPORT = PortNumber.portNumber(5); |
| 93 | private static final PortNumber DSTPORT = PortNumber.portNumber(6); |
| 94 | |
| 95 | private final InternalLinkProvider linkProvider = new InternalLinkProvider(); |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 96 | private final InternalLinkListener listener = new InternalLinkListener(); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 97 | |
| 98 | // Link descriptions |
| 99 | private final ConcurrentMap<ConnectPoint, LinkDescription> descriptions = Maps |
| 100 | .newConcurrentMap(); |
| 101 | |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 102 | // Local Device ID's that have been seen so far |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 103 | private final List<DeviceId> devices = Lists.newArrayList(); |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 104 | // tail ends of other islands |
| 105 | private final List<ConnectPoint> tails = Lists.newArrayList(); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 106 | |
| 107 | private ExecutorService linkDriver = Executors.newFixedThreadPool(1, |
Thomas Vachuska | 9ea3e6f | 2015-01-23 16:34:22 -0800 | [diff] [blame] | 108 | namedThreads("onos-null-link-driver")); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 109 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 110 | // For flicker = true, duration between events in msec. |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 111 | @Property(name = "eventRate", value = "0", |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 112 | label = "Duration between Link Event") |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 113 | private int eventRate = DEFAULT_RATE; |
suibin | 1a7b7bd | 2015-02-12 09:41:47 -0800 | [diff] [blame^] | 114 | private int checkRateDuration = 10; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 115 | |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 116 | // For flicker = true, duration between events in msec. |
| 117 | @Property(name = "neighbors", value = "", |
| 118 | label = "Node ID of instance for neighboring island ") |
| 119 | private String neighbor = ""; |
| 120 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 121 | public NullLinkProvider() { |
| 122 | super(new ProviderId("null", "org.onosproject.provider.nil")); |
| 123 | } |
| 124 | |
| 125 | @Activate |
| 126 | public void activate(ComponentContext context) { |
| 127 | providerService = providerRegistry.register(this); |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 128 | linkService = (LinkService) providerRegistry; |
| 129 | linkService.addListener(listener); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 130 | deviceService.addListener(linkProvider); |
| 131 | modified(context); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 132 | log.info("started"); |
| 133 | } |
| 134 | |
| 135 | @Deactivate |
| 136 | public void deactivate(ComponentContext context) { |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 137 | if (eventRate != 0) { |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 138 | try { |
| 139 | linkDriver.awaitTermination(1000, TimeUnit.MILLISECONDS); |
| 140 | } catch (InterruptedException e) { |
| 141 | log.error("LinkBuilder did not terminate"); |
| 142 | } |
| 143 | linkDriver.shutdownNow(); |
| 144 | } |
| 145 | deviceService.removeListener(linkProvider); |
| 146 | providerRegistry.unregister(this); |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 147 | linkService.removeListener(listener); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 148 | deviceService = null; |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 149 | linkService = null; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 150 | |
| 151 | log.info("stopped"); |
| 152 | } |
| 153 | |
Ayaka Koshibe | 7dc1d04 | 2015-01-21 15:28:03 -0800 | [diff] [blame] | 154 | @Modified |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 155 | public void modified(ComponentContext context) { |
| 156 | if (context == null) { |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 157 | log.info("No configs, using defaults: eventRate={}", DEFAULT_RATE); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 158 | return; |
| 159 | } |
| 160 | Dictionary<?, ?> properties = context.getProperties(); |
| 161 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 162 | int newRate; |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 163 | String newNbor; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 164 | try { |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 165 | String s = (String) properties.get("eventRate"); |
Yuta HIGUCHI | dd9228d | 2015-02-10 22:26:59 -0800 | [diff] [blame] | 166 | newRate = isNullOrEmpty(s) ? eventRate : Integer.parseInt(s.trim()); |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 167 | s = (String) properties.get("neighbors"); |
| 168 | newNbor = isNullOrEmpty(s) ? neighbor : getNeighbor(s.trim()); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 169 | } catch (Exception e) { |
| 170 | log.warn(e.getMessage()); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 171 | newRate = eventRate; |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 172 | newNbor = neighbor; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 173 | } |
| 174 | |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 175 | if (newNbor != neighbor) { |
| 176 | neighbor = newNbor; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 177 | } |
| 178 | |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 179 | if (newRate != 0 & eventRate != newRate) { |
| 180 | eventRate = newRate; |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 181 | linkDriver.submit(new LinkDriver()); |
| 182 | } |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 183 | |
| 184 | log.info("Using new settings: eventRate={}", eventRate); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 185 | } |
| 186 | |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 187 | // pick out substring from Deviceid |
| 188 | private String part(String devId) { |
| 189 | return devId.split(":")[1].substring(12, 16); |
| 190 | } |
| 191 | |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 192 | // pick out substring from Deviceid |
| 193 | private String nIdPart(String devId) { |
| 194 | return devId.split(":")[1].substring(9, 12); |
| 195 | } |
| 196 | |
| 197 | // pick out the next node ID in string, return hash (i.e. what's |
| 198 | // in a Device ID |
| 199 | private String getNeighbor(String nbors) { |
| 200 | String me = nodeService.getLocalNode().id().toString(); |
| 201 | String mynb = ""; |
| 202 | String[] nodes = nbors.split(","); |
| 203 | for (int i = 0; i < nodes.length; i++) { |
| 204 | if (i != 0 & nodes[i].equals(me)) { |
| 205 | mynb = nodes[i - 1]; |
| 206 | break; |
| 207 | } |
| 208 | } |
| 209 | // return as hash string. |
| 210 | if (!mynb.isEmpty()) { |
| 211 | return toHex((Objects.hash(new NodeId(mynb)))).substring(13, 16); |
| 212 | } |
| 213 | return ""; |
| 214 | } |
| 215 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 216 | /** |
| 217 | * Adds links as devices are found, and generates LinkEvents. |
| 218 | */ |
| 219 | private class InternalLinkProvider implements DeviceListener { |
| 220 | |
| 221 | @Override |
| 222 | public void event(DeviceEvent event) { |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 223 | Device dev = event.subject(); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 224 | switch (event.type()) { |
| 225 | case DEVICE_ADDED: |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 226 | addLink(dev); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 227 | break; |
| 228 | case DEVICE_REMOVED: |
Ayaka Koshibe | 0cd4282 | 2015-01-22 16:02:31 -0800 | [diff] [blame] | 229 | removeLink(dev); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 230 | break; |
| 231 | default: |
| 232 | break; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | private void addLink(Device current) { |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 237 | DeviceId did = current.id(); |
| 238 | if (!MASTER.equals(roleService.getLocalRole(did))) { |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 239 | |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 240 | String part = part(did.toString()); |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 241 | String npart = nIdPart(did.toString()); |
Yuta HIGUCHI | dd9228d | 2015-02-10 22:26:59 -0800 | [diff] [blame] | 242 | if (part.equals("ffff") && npart.equals(neighbor)) { |
Ayaka Koshibe | 8eddc0d | 2015-02-02 18:07:29 -0800 | [diff] [blame] | 243 | // 'tail' of our neighboring island - link us <- tail |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 244 | tails.add(new ConnectPoint(did, SRCPORT)); |
| 245 | } |
| 246 | tryLinkTail(); |
| 247 | return; |
| 248 | } |
| 249 | devices.add(did); |
| 250 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 251 | if (devices.size() == 1) { |
| 252 | return; |
| 253 | } |
| 254 | |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 255 | // Normal flow - attach new device to the last-seen device |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 256 | DeviceId prev = devices.get(devices.size() - 2); |
| 257 | ConnectPoint src = new ConnectPoint(prev, SRCPORT); |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 258 | ConnectPoint dst = new ConnectPoint(did, DSTPORT); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 259 | |
| 260 | LinkDescription fdesc = new DefaultLinkDescription(src, dst, |
| 261 | Link.Type.DIRECT); |
| 262 | LinkDescription rdesc = new DefaultLinkDescription(dst, src, |
| 263 | Link.Type.DIRECT); |
| 264 | descriptions.put(src, fdesc); |
| 265 | descriptions.put(dst, rdesc); |
| 266 | |
| 267 | providerService.linkDetected(fdesc); |
| 268 | providerService.linkDetected(rdesc); |
| 269 | } |
| 270 | |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 271 | // try to link to a tail to first element |
| 272 | private void tryLinkTail() { |
| 273 | if (tails.isEmpty() || devices.isEmpty()) { |
| 274 | return; |
| 275 | } |
| 276 | ConnectPoint first = new ConnectPoint(devices.get(0), DSTPORT); |
| 277 | boolean added = false; |
| 278 | for (ConnectPoint cp : tails) { |
| 279 | if (!linkService.getLinks(cp).isEmpty()) { |
| 280 | continue; |
| 281 | } |
| 282 | LinkDescription ld = new DefaultLinkDescription(cp, first, |
| 283 | Link.Type.DIRECT); |
| 284 | descriptions.put(cp, ld); |
| 285 | providerService.linkDetected(ld); |
| 286 | added = true; |
| 287 | break; |
| 288 | } |
| 289 | if (added) { |
| 290 | tails.clear(); |
| 291 | } |
| 292 | } |
| 293 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 294 | private void removeLink(Device device) { |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 295 | if (!MASTER.equals(roleService.getLocalRole(device.id()))) { |
| 296 | return; |
| 297 | } |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 298 | providerService.linksVanished(device.id()); |
| 299 | devices.remove(device.id()); |
| 300 | } |
Ayaka Koshibe | 35c71e1 | 2015-01-27 17:10:04 -0800 | [diff] [blame] | 301 | |
| 302 | } |
| 303 | |
| 304 | private class InternalLinkListener implements LinkListener { |
| 305 | |
| 306 | @Override |
| 307 | public void event(LinkEvent event) { |
| 308 | switch (event.type()) { |
| 309 | case LINK_ADDED: |
| 310 | // If a link from another island, cast one back. |
| 311 | DeviceId sdid = event.subject().src().deviceId(); |
| 312 | PortNumber pn = event.subject().src().port(); |
| 313 | |
| 314 | if (roleService.getLocalRole(sdid).equals(MASTER)) { |
| 315 | String part = part(sdid.toString()); |
| 316 | if (part.equals("ffff") && SRCPORT.equals(pn)) { |
| 317 | LinkDescription ld = new DefaultLinkDescription(event |
| 318 | .subject().dst(), event.subject().src(), |
| 319 | Link.Type.DIRECT); |
| 320 | descriptions.put(event.subject().dst(), ld); |
| 321 | providerService.linkDetected(ld); |
| 322 | } |
| 323 | return; |
| 324 | } |
| 325 | break; |
| 326 | default: |
| 327 | break; |
| 328 | } |
| 329 | } |
| 330 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Generates link events using fake links. |
| 335 | */ |
| 336 | private class LinkDriver implements Runnable { |
| 337 | |
| 338 | @Override |
| 339 | public void run() { |
suibin | 1a7b7bd | 2015-02-12 09:41:47 -0800 | [diff] [blame^] | 340 | long startTime = System.currentTimeMillis(); |
| 341 | long countEvent = 0; |
| 342 | float effLoad = 0; |
| 343 | |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 344 | while (!linkDriver.isShutdown()) { |
suibin | 1a7b7bd | 2015-02-12 09:41:47 -0800 | [diff] [blame^] | 345 | |
| 346 | //Assuming eventRate is in microsecond unit |
| 347 | if (countEvent <= checkRateDuration * 1000000 / eventRate) { |
| 348 | for (LinkDescription desc : descriptions.values()) { |
| 349 | providerService.linkVanished(desc); |
| 350 | countEvent++; |
| 351 | try { |
| 352 | TimeUnit.MICROSECONDS.sleep(eventRate); |
| 353 | } catch (InterruptedException e) { |
| 354 | log.warn(String.valueOf(e)); |
| 355 | } |
| 356 | providerService.linkDetected(desc); |
| 357 | countEvent++; |
| 358 | try { |
| 359 | TimeUnit.MICROSECONDS.sleep(eventRate); |
| 360 | } catch (InterruptedException e) { |
| 361 | log.warn(String.valueOf(e)); |
| 362 | } |
| 363 | } |
| 364 | } else { |
| 365 | // log in WARN the effective load generation rate in events/sec, every 10 seconds |
| 366 | effLoad = (float) (countEvent * 1000 / (System.currentTimeMillis() - startTime)); |
| 367 | log.warn("Effective Loading is {} events/second", String.valueOf(effLoad)); |
| 368 | countEvent = 0; |
| 369 | startTime = System.currentTimeMillis(); |
Ayaka Koshibe | 422916f | 2015-01-15 15:30:23 -0800 | [diff] [blame] | 370 | } |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | } |