Thomas Vachuska | 781d18b | 2014-10-27 10:31:25 -0700 | [diff] [blame] | 1 | /* |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 2 | * Copyright 2014 Open Networking Laboratory |
Thomas Vachuska | 781d18b | 2014-10-27 10:31:25 -0700 | [diff] [blame] | 3 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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 |
Thomas Vachuska | 781d18b | 2014-10-27 10:31:25 -0700 | [diff] [blame] | 7 | * |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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. |
Thomas Vachuska | 781d18b | 2014-10-27 10:31:25 -0700 | [diff] [blame] | 15 | */ |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 16 | package org.onlab.onos.foo; |
| 17 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 18 | import static java.util.concurrent.Executors.newScheduledThreadPool; |
| 19 | import static org.onlab.util.Tools.namedThreads; |
| 20 | import static org.slf4j.LoggerFactory.getLogger; |
| 21 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 22 | import java.nio.ByteBuffer; |
| 23 | import java.util.concurrent.ScheduledExecutorService; |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 24 | //import java.util.concurrent.TimeUnit; |
| 25 | |
| 26 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 27 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 28 | import org.apache.felix.scr.annotations.Activate; |
| 29 | import org.apache.felix.scr.annotations.Component; |
| 30 | import org.apache.felix.scr.annotations.Deactivate; |
| 31 | import org.apache.felix.scr.annotations.Reference; |
| 32 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 33 | import org.onlab.onos.cluster.ClusterEvent; |
| 34 | import org.onlab.onos.cluster.ClusterEventListener; |
| 35 | import org.onlab.onos.cluster.ClusterService; |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 36 | import org.onlab.onos.cluster.NodeId; |
| 37 | import org.onlab.onos.mastership.MastershipEvent; |
| 38 | import org.onlab.onos.mastership.MastershipListener; |
| 39 | import org.onlab.onos.mastership.MastershipService; |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 40 | import org.onlab.onos.net.device.DeviceEvent; |
| 41 | import org.onlab.onos.net.device.DeviceListener; |
| 42 | import org.onlab.onos.net.device.DeviceService; |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 43 | import org.onlab.onos.net.intent.IntentEvent; |
| 44 | import org.onlab.onos.net.intent.IntentListener; |
| 45 | import org.onlab.onos.net.intent.IntentService; |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 46 | import org.onlab.onos.store.service.DatabaseAdminService; |
Yuta HIGUCHI | 1a22cc0 | 2014-11-26 13:38:44 -0800 | [diff] [blame^] | 47 | import org.onlab.onos.store.service.DatabaseException; |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 48 | import org.onlab.onos.store.service.DatabaseService; |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 49 | import org.onlab.onos.store.service.Lock; |
| 50 | import org.onlab.onos.store.service.LockService; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 51 | import org.onlab.onos.store.service.VersionedValue; |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 52 | import org.slf4j.Logger; |
| 53 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 54 | /** |
| 55 | * Playground app component. |
| 56 | */ |
| 57 | @Component(immediate = true) |
| 58 | public class FooComponent { |
| 59 | |
| 60 | private final Logger log = getLogger(getClass()); |
| 61 | |
| 62 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 63 | protected ClusterService clusterService; |
| 64 | |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 65 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 66 | protected DeviceService deviceService; |
| 67 | |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 68 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 69 | protected IntentService intentService; |
| 70 | |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 71 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 72 | protected MastershipService mastershipService; |
| 73 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 74 | @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY) |
| 75 | protected DatabaseAdminService dbAdminService; |
| 76 | |
| 77 | @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY) |
| 78 | protected DatabaseService dbService; |
| 79 | |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 80 | @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY) |
| 81 | protected LockService lockService; |
| 82 | |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 83 | private final ClusterEventListener clusterListener = new InnerClusterListener(); |
| 84 | private final DeviceListener deviceListener = new InnerDeviceListener(); |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 85 | private final IntentListener intentListener = new InnerIntentListener(); |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 86 | private final MastershipListener mastershipListener = new InnerMastershipListener(); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 87 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 88 | private ScheduledExecutorService executor; |
| 89 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 90 | @Activate |
| 91 | public void activate() { |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 92 | executor = newScheduledThreadPool(4, namedThreads("foo-executor-%d")); |
| 93 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 94 | clusterService.addListener(clusterListener); |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 95 | deviceService.addListener(deviceListener); |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 96 | intentService.addListener(intentListener); |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 97 | mastershipService.addListener(mastershipListener); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 98 | |
| 99 | if (dbService == null || dbAdminService == null) { |
| 100 | log.info("Couldn't find DB service"); |
| 101 | } else { |
| 102 | log.info("Found DB service"); |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 103 | //longIncrementor(); |
| 104 | //lockUnlock(); |
| 105 | //executor.scheduleAtFixedRate(new LongIncrementor(), 1, 10, TimeUnit.SECONDS); |
| 106 | //executor.scheduleAtFixedRate(new LongIncrementor(), 1, 10, TimeUnit.SECONDS); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 107 | } |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 108 | log.info("Started"); |
| 109 | } |
| 110 | |
| 111 | @Deactivate |
| 112 | public void deactivate() { |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 113 | executor.shutdown(); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 114 | clusterService.removeListener(clusterListener); |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 115 | deviceService.removeListener(deviceListener); |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 116 | intentService.removeListener(intentListener); |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 117 | mastershipService.removeListener(mastershipListener); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 118 | log.info("Stopped"); |
| 119 | } |
| 120 | |
| 121 | private class InnerClusterListener implements ClusterEventListener { |
| 122 | @Override |
| 123 | public void event(ClusterEvent event) { |
| 124 | log.info("WOOOOT! {}", event); |
| 125 | } |
| 126 | } |
tom | 0768a02 | 2014-09-24 16:16:16 -0700 | [diff] [blame] | 127 | |
| 128 | private class InnerDeviceListener implements DeviceListener { |
| 129 | @Override |
| 130 | public void event(DeviceEvent event) { |
| 131 | log.info("YEEEEHAAAAW! {}", event); |
| 132 | } |
| 133 | } |
tom | 4e96904 | 2014-10-07 00:47:30 -0700 | [diff] [blame] | 134 | |
| 135 | private class InnerIntentListener implements IntentListener { |
| 136 | @Override |
| 137 | public void event(IntentEvent event) { |
| 138 | String message; |
| 139 | if (event.type() == IntentEvent.Type.SUBMITTED) { |
| 140 | message = "WOW! It looks like someone has some intentions: {}"; |
| 141 | } else if (event.type() == IntentEvent.Type.INSTALLED) { |
| 142 | message = "AWESOME! So far things are going great: {}"; |
| 143 | } else if (event.type() == IntentEvent.Type.WITHDRAWN) { |
| 144 | message = "HMMM! Ambitions are fading apparently: {}"; |
| 145 | } else { |
| 146 | message = "CRAP!!! Things are not turning out as intended: {}"; |
| 147 | } |
| 148 | log.info(message, event.subject()); |
| 149 | } |
| 150 | } |
Yuta HIGUCHI | 0c6e184 | 2014-11-05 22:34:23 -0800 | [diff] [blame] | 151 | |
| 152 | private class InnerMastershipListener implements MastershipListener { |
| 153 | @Override |
| 154 | public void event(MastershipEvent event) { |
| 155 | final NodeId myId = clusterService.getLocalNode().id(); |
| 156 | if (myId.equals(event.roleInfo().master())) { |
| 157 | log.info("I have control/I wish you luck {}", event); |
| 158 | } else { |
| 159 | log.info("you have control {}", event); |
| 160 | } |
| 161 | } |
| 162 | } |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 163 | |
Madan Jampani | 71582ed | 2014-11-18 10:06:01 -0800 | [diff] [blame] | 164 | private void lockUnlock() throws InterruptedException { |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 165 | try { |
| 166 | final String locksTable = "onos-locks"; |
| 167 | |
| 168 | if (!dbAdminService.listTables().contains(locksTable)) { |
| 169 | dbAdminService.createTable(locksTable, 10000); |
| 170 | } |
| 171 | Lock lock = lockService.create("foo-bar"); |
| 172 | log.info("Requesting lock"); |
| 173 | lock.lock(10000); |
| 174 | //try { |
| 175 | //Thread.sleep(5000); |
| 176 | //} catch (InterruptedException e) { |
| 177 | // TODO Auto-generated catch block |
| 178 | //e.printStackTrace(); |
| 179 | //} |
| 180 | log.info("Acquired Lock"); |
| 181 | log.info("Do I have the lock: {} ", lock.isLocked()); |
| 182 | //lock.unlock(); |
| 183 | log.info("Do I have the lock: {} ", lock.isLocked()); |
| 184 | } finally { |
| 185 | log.info("Done"); |
| 186 | } |
| 187 | } |
| 188 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 189 | private void longIncrementor() { |
| 190 | try { |
| 191 | final String someTable = "admin"; |
| 192 | final String someKey = "long"; |
| 193 | |
Yuta HIGUCHI | 7a0ed16 | 2014-11-12 10:06:38 -0800 | [diff] [blame] | 194 | if (!dbAdminService.listTables().contains(someTable)) { |
| 195 | dbAdminService.createTable(someTable); |
| 196 | } |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 197 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 198 | VersionedValue vv = dbService.get(someTable, someKey); |
| 199 | if (vv == null) { |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 200 | ByteBuffer zero = ByteBuffer.allocate(Long.BYTES).putLong(0); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 201 | if (dbService.putIfAbsent(someTable, someKey, zero.array())) { |
Madan Jampani | 650840b | 2014-11-12 01:10:57 -0800 | [diff] [blame] | 202 | log.info("Wrote initial value"); |
| 203 | vv = dbService.get(someTable, someKey); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 204 | } else { |
Madan Jampani | 650840b | 2014-11-12 01:10:57 -0800 | [diff] [blame] | 205 | log.info("Concurrent write detected."); |
| 206 | // concurrent write detected, read and fall through |
| 207 | vv = dbService.get(someTable, someKey); |
| 208 | if (vv == null) { |
| 209 | log.error("Shouldn't reach here"); |
| 210 | } |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 211 | } |
| 212 | } |
Yuta HIGUCHI | 1a22cc0 | 2014-11-26 13:38:44 -0800 | [diff] [blame^] | 213 | int retry = 1; |
Ray Milkey | c5cd0d9 | 2014-11-14 14:05:36 -0800 | [diff] [blame] | 214 | |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 215 | do { |
Ray Milkey | c5cd0d9 | 2014-11-14 14:05:36 -0800 | [diff] [blame] | 216 | if (vv == null) { |
| 217 | log.error("Shouldn't reach here - value is null"); |
| 218 | break; |
| 219 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 220 | ByteBuffer prev = ByteBuffer.wrap(vv.value()); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 221 | long next = prev.getLong() + 1; |
| 222 | byte[] newValue = ByteBuffer.allocate(Long.BYTES).putLong(next).array(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 223 | if (dbService.putIfVersionMatches(someTable, someKey, newValue, vv.version())) { |
| 224 | log.info("Write success. New value: {}", next); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 225 | break; |
| 226 | } else { |
Yuta HIGUCHI | 1a22cc0 | 2014-11-26 13:38:44 -0800 | [diff] [blame^] | 227 | log.info("Write failed retrying.....{}", retry); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 228 | vv = dbService.get(someTable, someKey); |
| 229 | if (vv == null) { |
Yuta HIGUCHI | 1fea0b6 | 2014-11-07 00:38:35 -0800 | [diff] [blame] | 230 | log.error("Shouldn't reach here"); |
| 231 | } |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 232 | } |
Yuta HIGUCHI | 1a22cc0 | 2014-11-26 13:38:44 -0800 | [diff] [blame^] | 233 | } while (retry++ < 5); |
| 234 | } catch (DatabaseException e) { |
| 235 | log.debug("DB Exception thrown {}", e.getMessage()); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 236 | } catch (Exception e) { |
| 237 | log.error("Exception thrown", e); |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | private final class LongIncrementor implements Runnable { |
| 242 | |
| 243 | @Override |
| 244 | public void run() { |
| 245 | longIncrementor(); |
| 246 | } |
| 247 | |
| 248 | } |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | |