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.util.concurrent.Futures;
  12 import java.util.concurrent.Future;
  13 import java.util.concurrent.TimeUnit;
  14 import java.util.concurrent.TimeoutException;
  15 import java.util.concurrent.atomic.AtomicBoolean;
  16 import java.util.concurrent.atomic.AtomicLong;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.clustering.CandidateAlreadyRegisteredException;
  20 import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
  21 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipChange;
  22 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipListener;
  23 import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarService;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.Cars;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.CarsBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.RegisterOwnershipInput;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.StressTestInput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.UnregisterOwnershipInput;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.cars.CarEntry;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.config.sal.clustering.it.car.rev140818.cars.CarEntryBuilder;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.opendaylight.yangtools.yang.common.RpcError.ErrorType;
  37 import org.opendaylight.yangtools.yang.common.RpcResult;
  38 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * @author Thomas Pantelis
  44  */
  45 public class CarProvider implements CarService {
  46     private static final Logger log = LoggerFactory.getLogger(PurchaseCarProvider.class);
  47
  48     private final DataBroker dataProvider;
  49     private final EntityOwnershipService ownershipService;
  50     private static final Logger LOG = LoggerFactory.getLogger(CarProvider.class);
  51
  52     private static final String ENTITY_TYPE = "cars";
  53
  54     private final CarEntityOwnershipListener ownershipListener = new CarEntityOwnershipListener();
  55     private final AtomicBoolean registeredListener = new AtomicBoolean();
  56
  57     private volatile Thread testThread;
  58     private volatile boolean stopThread;
  59
  60     public CarProvider(DataBroker dataProvider, EntityOwnershipService ownershipService) {
  61         this.dataProvider = dataProvider;
  62         this.ownershipService = ownershipService;
  63     }
  64
  65     private void stopThread() {
  66         if(testThread != null) {
  67             stopThread = true;
  68             testThread.interrupt();
  69             try {
  70                 testThread.join();
  71             } catch (InterruptedException e) {}
  72             testThread = null;
  73         }
  74     }
  75
  76     @Override
  77     public Future<RpcResult<Void>> stressTest(StressTestInput input) {
  78         final int inputRate;
  79         final long inputCount;
  80
  81         // If rate is not provided, or given as zero, then just return.
  82         if ((input.getRate() == null) || (input.getRate() == 0)) {
  83             log.info("Exiting stress test as no rate is given.");
  84             return Futures.immediateFuture(RpcResultBuilder.<Void>failed()
  85                                            .withError(ErrorType.PROTOCOL, "invalid rate")
  86                                            .build());
  87         } else {
  88             inputRate = input.getRate();
  89         }
  90
  91         if (input.getCount() != null) {
  92             inputCount = input.getCount();
  93         } else {
  94             inputCount = 0;
  95         }
  96
  97         log.info("Stress test starting : rate: {} count: {}", inputRate, inputCount);
  98
  99         stopThread();
 100
 101         WriteTransaction tx = dataProvider.newWriteOnlyTransaction();
 102         InstanceIdentifier<Cars> carsId = InstanceIdentifier.<Cars>builder(Cars.class).build();
 103         tx.merge(LogicalDatastoreType.CONFIGURATION, carsId, new CarsBuilder().build());
 104         try {
 105             tx.submit().checkedGet(5, TimeUnit.SECONDS);
 106         } catch (TransactionCommitFailedException | TimeoutException e) {
 107             log.error("Put Cars failed",e);
 108             return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 109         }
 110
 111         stopThread = false;
 112         final long sleep = TimeUnit.NANOSECONDS.convert(1000,TimeUnit.MILLISECONDS) / inputRate;
 113         final Stopwatch sw = Stopwatch.createUnstarted();
 114         testThread = new Thread() {
 115             @Override
 116             public void run() {
 117                 sw.start();
 118                 AtomicLong count = new AtomicLong();
 119                 while(!stopThread) {
 120                     long id = count.incrementAndGet();
 121                     WriteTransaction tx = dataProvider.newWriteOnlyTransaction();
 122                     CarEntry car = new CarEntryBuilder().setId(new CarId("car"+id)).build();
 123                     tx.put(LogicalDatastoreType.CONFIGURATION,
 124                             InstanceIdentifier.<Cars>builder(Cars.class).child(CarEntry.class, car.getKey()).build(),
 125                             car);
 126                     tx.submit();
 127                     try {
 128                         TimeUnit.NANOSECONDS.sleep(sleep);
 129                     } catch (InterruptedException e) {
 130                         break;
 131                     }
 132
 133                     if((count.get() % 1000) == 0) {
 134                         log.info("Cars created {}, time: {}",count.get(),sw.elapsed(TimeUnit.SECONDS));
 135                     }
 136
 137                     // Check if a count is specified in input and we have created that many cars.
 138                     if ((inputCount != 0) && (count.get() >= inputCount)) {
 139                         stopThread = true;
 140                     }
 141                 }
 142
 143                 log.info("Stress test thread stopping after creating {} cars.", count.get());
 144             }
 145         };
 146         testThread.start();
 147
 148         return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 149     }
 150
 151     @Override
 152     public Future<RpcResult<Void>> stopStressTest() {
 153         stopThread();
 154         return Futures.immediateFuture(RpcResultBuilder.<Void>success().build());
 155     }
 156
 157
 158     @Override
 159     public Future<RpcResult<Void>> registerOwnership(RegisterOwnershipInput input) {
 160         if(registeredListener.compareAndSet(false, true)) {
 161             ownershipService.registerListener(ENTITY_TYPE, ownershipListener);
 162         }
 163
 164         Entity entity = new Entity(ENTITY_TYPE, input.getCarId());
 165         try {
 166             ownershipService.registerCandidate(entity);
 167         } catch (CandidateAlreadyRegisteredException e) {
 168             return RpcResultBuilder.<Void>failed().withError(ErrorType.APPLICATION,
 169                     "Could not register for car " + input.getCarId(), e).buildFuture();
 170         }
 171
 172         return RpcResultBuilder.<Void>success().buildFuture();
 173     }
 174
 175     @Override
 176     public Future<RpcResult<Void>> unregisterOwnership(UnregisterOwnershipInput input) {
 177         return RpcResultBuilder.<Void>success().buildFuture();
 178     }
 179
 180     private static class CarEntityOwnershipListener implements EntityOwnershipListener {
 181         @Override
 182         public void ownershipChanged(EntityOwnershipChange ownershipChange) {
 183             LOG.info("ownershipChanged: {}", ownershipChange);
 184         }
 185     }
 186 }