opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/CarProvider.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.clustering.it.provider;
   9
  10 import com.google.common.base.Stopwatch;
  11 import com.google.common.collect.Sets;
  12 import com.google.common.util.concurrent.Futures;
  13 import java.util.Collection;
  14 import java.util.concurrent.Future;
  15 import java.util.concurrent.TimeUnit;
  16 import java.util.concurrent.TimeoutException;
  17 import java.util.concurrent.atomic.AtomicBoolean;
  18 import java.util.concurrent.atomic.AtomicLong;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  21 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  22 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  23 import org.opendaylight.controller.md.sal.common.api.clustering.CandidateAlreadyRegisteredException;
  24 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
  25 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipChange;
  26 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener;
  27 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
  28 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  29 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  30 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarId;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarService;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.Cars;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarsBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.RegisterOwnershipInput;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.StressTestInput;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.UnregisterOwnershipInput;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.cars.CarEntry;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.cars.CarEntryBuilder;
  40 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  41 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  42 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
  43 import org.opendaylight.yangtools.yang.common.RpcResult;
  44 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 /**
  49  * @author Thomas Pantelis
  50  */
  51 public class CarProvider implements CarService {
  52     private static final Logger log = LoggerFactory.getLogger(PurchaseCarProvider.class);
  53
  54     private final DataBroker dataProvider;
  55     private final EntityOwnershipService ownershipService;
  56     private static final Logger LOG = LoggerFactory.getLogger(CarProvider.class);
  57
  58     private static final String ENTITY_TYPE = "cars";
  59
  60     private final CarEntityOwnershipListener ownershipListener = new CarEntityOwnershipListener();
  61     private final AtomicBoolean registeredListener = new AtomicBoolean();
  62
  63     private volatile Thread testThread;
  64     private volatile boolean stopThread;
  65
  66     private static final InstanceIdentifier CARS_IID = InstanceIdentifier.builder(Cars.class).build();
  67     private static final DataTreeIdentifier<Cars> CARS_DTID = new DataTreeIdentifier<>(
  68             LogicalDatastoreType.CONFIGURATION, CARS_IID);
  69
  70     private Collection<ListenerRegistration<DataChangeListener>> carsDclRegistrations =
  71             Sets.newConcurrentHashSet();
  72     private Collection<ListenerRegistration<CarDataTreeChangeListener>> carsDtclRegistrations =
  73             Sets.newConcurrentHashSet();
  74
  75     public CarProvider(DataBroker dataProvider, EntityOwnershipService ownershipService) {
  76         this.dataProvider = dataProvider;
  77         this.ownershipService = ownershipService;
  78     }
  79
  80     private void stopThread() {
  81         if(testThread != null) {
  82             stopThread = true;
  83             testThread.interrupt();
  84             try {
  85                 testThread.join();
  86             } catch (InterruptedException e) {}
  87             testThread = null;
  88         }
  89     }
  90
  91     @Override
  92     public Future<RpcResult<Void>> stressTest(StressTestInput input) {
  93         final int inputRate;
  94         final long inputCount;
  95
  96         // If rate is not provided, or given as zero, then just return.
  97         if ((input.getRate() == null) || (input.getRate() == 0)) {
  98             log.info("Exiting stress test as no rate is given.");
  99             return Futures.immediateFuture(RpcResultBuilder.<Void>failed()
 100                                            .withError(ErrorType.PROTOCOL, "invalid rate")
 101                                            .build());
 102         } else {
 103             inputRate = input.getRate();
 104         }
 105
 106         if (input.getCount() != null) {
 107             inputCount = input.getCount();
 108         } else {
 109             inputCount = 0;
 110         }
 111
 112         log.info("Stress test starting : rate: {} count: {}", inputRate, inputCount);
 113
 114         stopThread();
 115
 116         WriteTransaction tx = dataProvider.newWriteOnlyTransaction();
 117         InstanceIdentifier<Cars> carsId = InstanceIdentifier.<Cars>builder(Cars.class).build();
 118         tx.merge(LogicalDatastoreType.CONFIGURATION, carsId, new CarsBuilder().build());
 119         try {
 120             tx.submit().checkedGet(5, TimeUnit.SECONDS);
 121         } catch (TransactionCommitFailedException | TimeoutException e) {
 122             log.error("Put Cars failed",e);
 123             return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 124         }
 125
 126         stopThread = false;
 127         final long sleep = TimeUnit.NANOSECONDS.convert(1000,TimeUnit.MILLISECONDS) / inputRate;
 128         final Stopwatch sw = Stopwatch.createUnstarted();
 129         testThread = new Thread() {
 130             @Override
 131             public void run() {
 132                 sw.start();
 133                 AtomicLong count = new AtomicLong();
 134                 while(!stopThread) {
 135                     long id = count.incrementAndGet();
 136                     WriteTransaction tx = dataProvider.newWriteOnlyTransaction();
 137                     CarEntry car = new CarEntryBuilder().setId(new CarId("car"+id)).build();
 138                     tx.put(LogicalDatastoreType.CONFIGURATION,
 139                             InstanceIdentifier.<Cars>builder(Cars.class).child(CarEntry.class, car.getKey()).build(),
 140                             car);
 141                     tx.submit();
 142                     try {
 143                         TimeUnit.NANOSECONDS.sleep(sleep);
 144                     } catch (InterruptedException e) {
 145                         break;
 146                     }
 147
 148                     if((count.get() % 1000) == 0) {
 149                         log.info("Cars created {}, time: {}",count.get(),sw.elapsed(TimeUnit.SECONDS));
 150                     }
 151
 152                     // Check if a count is specified in input and we have created that many cars.
 153                     if ((inputCount != 0) && (count.get() >= inputCount)) {
 154                         stopThread = true;
 155                     }
 156                 }
 157
 158                 log.info("Stress test thread stopping after creating {} cars.", count.get());
 159             }
 160         };
 161         testThread.start();
 162
 163         return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 164     }
 165
 166     @Override
 167     public Future<RpcResult<Void>> stopStressTest() {
 168         stopThread();
 169         return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 170     }
 171
 172
 173     @Override
 174     public Future<RpcResult<Void>> registerOwnership(RegisterOwnershipInput input) {
 175         if(registeredListener.compareAndSet(false, true)) {
 176             ownershipService.registerListener(ENTITY_TYPE, ownershipListener);
 177         }
 178
 179         Entity entity = new Entity(ENTITY_TYPE, input.getCarId());
 180         try {
 181             ownershipService.registerCandidate(entity);
 182         } catch (CandidateAlreadyRegisteredException e) {
 183             return RpcResultBuilder.<Void>failed().withError(ErrorType.APPLICATION,
 184                     "Could not register for car " + input.getCarId(), e).buildFuture();
 185         }
 186
 187         return RpcResultBuilder.<Void>success().buildFuture();
 188     }
 189
 190     @Override
 191     public Future<RpcResult<Void>> unregisterOwnership(UnregisterOwnershipInput input) {
 192         return RpcResultBuilder.<Void>success().buildFuture();
 193     }
 194
 195     private static class CarEntityOwnershipListener implements EntityOwnershipListener {
 196         @Override
 197         public void ownershipChanged(EntityOwnershipChange ownershipChange) {
 198             LOG.info("ownershipChanged: {}", ownershipChange);
 199         }
 200     }
 201
 202     @Override
 203     public Future<RpcResult<java.lang.Void>> registerLoggingDcl() {
 204         LOG.info("Registering a new CarDataChangeListener");
 205         final ListenerRegistration carsDclRegistration = dataProvider.registerDataChangeListener(
 206                 LogicalDatastoreType.CONFIGURATION, CARS_IID, new CarDataChangeListener(),
 207                 AsyncDataBroker.DataChangeScope.SUBTREE);
 208
 209         if (carsDclRegistration != null) {
 210             carsDclRegistrations.add(carsDclRegistration);
 211             return RpcResultBuilder.<Void>success().buildFuture();
 212         }
 213         return RpcResultBuilder.<Void>failed().buildFuture();
 214     }
 215
 216     @Override
 217     public Future<RpcResult<java.lang.Void>> registerLoggingDtcl() {
 218         LOG.info("Registering a new CarDataTreeChangeListener");
 219         final ListenerRegistration<CarDataTreeChangeListener> carsDtclRegistration =
 220                 dataProvider.registerDataTreeChangeListener(CARS_DTID, new CarDataTreeChangeListener());
 221
 222         if (carsDtclRegistration != null) {
 223             carsDtclRegistrations.add(carsDtclRegistration);
 224             return RpcResultBuilder.<Void>success().buildFuture();
 225         }
 226         return RpcResultBuilder.<Void>failed().buildFuture();
 227     }
 228
 229     @Override
 230     public Future<RpcResult<java.lang.Void>> unregisterLoggingDcls() {
 231         LOG.info("Unregistering the CarDataChangeListener(s)");
 232         synchronized (carsDclRegistrations) {
 233             int numListeners = 0;
 234             for (ListenerRegistration<DataChangeListener> carsDclRegistration : carsDclRegistrations) {
 235                 carsDclRegistration.close();
 236                 numListeners++;
 237             }
 238             carsDclRegistrations.clear();
 239             LOG.info("Unregistered {} CarDataChangeListener(s)", numListeners);
 240         }
 241         return RpcResultBuilder.<Void>success().buildFuture();
 242     }
 243
 244     @Override
 245     public Future<RpcResult<java.lang.Void>> unregisterLoggingDtcls() {
 246         LOG.info("Unregistering the CarDataTreeChangeListener(s)");
 247         synchronized (carsDtclRegistrations) {
 248             int numListeners = 0;
 249             for (ListenerRegistration<CarDataTreeChangeListener> carsDtclRegistration : carsDtclRegistrations) {
 250                 carsDtclRegistration.close();
 251                 numListeners++;
 252             }
 253             carsDtclRegistrations.clear();
 254             LOG.info("Unregistered {} CaraDataTreeChangeListener(s)", numListeners);
 255         }
 256         return RpcResultBuilder.<Void>success().buildFuture();
 257     }
 258 }