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