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

   1 /*
   2  * Copyright (c) 2017 Cisco 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
   9 package org.opendaylight.controller.clustering.it.provider.impl;
  10
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.FutureCallback;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import com.google.common.util.concurrent.SettableFuture;
  16 import java.util.ArrayList;
  17 import java.util.Collections;
  18 import java.util.HashSet;
  19 import java.util.List;
  20 import java.util.Set;
  21 import java.util.SplittableRandom;
  22 import java.util.concurrent.Executors;
  23 import java.util.concurrent.ScheduledExecutorService;
  24 import java.util.concurrent.ScheduledFuture;
  25 import java.util.concurrent.TimeUnit;
  26 import javax.annotation.Nullable;
  27 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  28 import org.opendaylight.mdsal.common.api.TransactionCommitFailedException;
  29 import org.opendaylight.mdsal.dom.api.DOMDataTreeCursorAwareTransaction;
  30 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  31 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
  32 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducerException;
  33 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
  34 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteCursor;
  35 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsInput;
  36 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsOutput;
  37 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsOutputBuilder;
  38 import org.opendaylight.yangtools.yang.common.QName;
  39 import org.opendaylight.yangtools.yang.common.RpcError;
  40 import org.opendaylight.yangtools.yang.common.RpcResult;
  41 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  43 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  44 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  45 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  46 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  47 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  48 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  49 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
  50 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  51 import org.slf4j.Logger;
  52 import org.slf4j.LoggerFactory;
  53
  54 public class ProduceTransactionsHandler implements Runnable {
  55
  56     private static final Logger LOG = LoggerFactory.getLogger(ProduceTransactionsHandler.class);
  57     private static final int SECOND_AS_NANO = 1000000000;
  58     //2^20 as in the model
  59     private static final int MAX_ITEM = 1048576;
  60
  61     static final QName ID_INTS =
  62             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15", "id-ints");
  63     static final QName ID_INT =
  64             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15", "id-int");
  65     static final QName ID =
  66             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15", "id");
  67     static final QName ITEM =
  68             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15", "item");
  69     private static final QName NUMBER =
  70             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15", "number");
  71
  72     public static final YangInstanceIdentifier ID_INTS_YID = YangInstanceIdentifier.of(ID_INTS);
  73     public static final YangInstanceIdentifier ID_INT_YID = ID_INTS_YID.node(ID_INT);
  74
  75     private final DOMDataTreeService domDataTreeService;
  76
  77     private final long timeToTake;
  78     private final long delay;
  79     private final String id;
  80
  81     private final ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
  82     private final ArrayList<CheckedFuture<Void, TransactionCommitFailedException>> futures = new ArrayList<>();
  83     private final Set<Integer> usedValues = new HashSet<>();
  84     private final SplittableRandom random = new SplittableRandom();
  85
  86     private long startTime;
  87     private SettableFuture<RpcResult<ProduceTransactionsOutput>> completionFuture;
  88
  89     private long allTx = 0;
  90     private long insertTx = 0;
  91     private long deleteTx = 0;
  92     private ScheduledFuture<?> scheduledFuture;
  93     private DOMDataTreeProducer itemProducer;
  94     private YangInstanceIdentifier idListWithKey;
  95
  96     public ProduceTransactionsHandler(final DOMDataTreeService domDataTreeService,
  97                                       final ProduceTransactionsInput input) {
  98
  99         this.domDataTreeService = domDataTreeService;
 100
 101         timeToTake = input.getSeconds() * SECOND_AS_NANO;
 102         delay = SECOND_AS_NANO / input.getTransactionsPerSecond();
 103         id = input.getId();
 104     }
 105
 106     @Override
 107     public void run() {
 108         final long current = System.nanoTime();
 109
 110         futures.add(execWrite());
 111
 112         maybeFinish(current);
 113     }
 114
 115     public void start(final SettableFuture<RpcResult<ProduceTransactionsOutput>> settableFuture) {
 116         completionFuture = settableFuture;
 117
 118         if (fillInitialList(completionFuture)) {
 119             startTime = System.nanoTime();
 120             scheduledFuture = executor.scheduleAtFixedRate(this, 0, delay, TimeUnit.NANOSECONDS);
 121         } else {
 122             executor.shutdown();
 123         }
 124     }
 125
 126     private boolean fillInitialList(final SettableFuture<RpcResult<ProduceTransactionsOutput>> settableFuture) {
 127         LOG.debug("Filling the item list with initial values.");
 128
 129         final CollectionNodeBuilder<MapEntryNode, MapNode> mapBuilder = ImmutableNodes.mapNodeBuilder(ITEM);
 130         for (int i = 0; i < MAX_ITEM / 2; i++) {
 131             usedValues.add(i);
 132             mapBuilder.withChild(ImmutableNodes.mapEntry(ITEM, NUMBER, i));
 133         }
 134
 135         idListWithKey = ID_INT_YID.node(new NodeIdentifierWithPredicates(ID_INT, ID, id));
 136
 137         itemProducer = domDataTreeService.createProducer(
 138                 Collections.singleton(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey)));
 139
 140         final DOMDataTreeCursorAwareTransaction tx = itemProducer.createTransaction(false);
 141         final DOMDataTreeWriteCursor cursor =
 142                 tx.createCursor(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey));
 143
 144         final MapNode list = mapBuilder.build();
 145         cursor.write(list.getIdentifier(), list);
 146         cursor.close();
 147
 148         try {
 149             tx.submit().checkedGet();
 150         } catch (final TransactionCommitFailedException e) {
 151             LOG.warn("Unable to fill the initial item list.", e);
 152             settableFuture.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 153                     .withError(RpcError.ErrorType.APPLICATION, "Unexpected-exception", e).build());
 154             return false;
 155         }
 156
 157         return true;
 158     }
 159
 160     private CheckedFuture<Void, TransactionCommitFailedException> execWrite() {
 161         final int i = random.nextInt(MAX_ITEM + 1);
 162
 163         final YangInstanceIdentifier entryId =
 164                 idListWithKey.node(ITEM).node(new NodeIdentifierWithPredicates(ITEM, NUMBER, i));
 165
 166         final DOMDataTreeCursorAwareTransaction tx = itemProducer.createTransaction(false);
 167         final DOMDataTreeWriteCursor cursor = tx.createCursor(
 168                 new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey.node(ITEM)));
 169         allTx++;
 170
 171         if (usedValues.contains(i)) {
 172             LOG.debug("Deleting item: {}", i);
 173             deleteTx++;
 174             cursor.delete(entryId.getLastPathArgument());
 175             usedValues.remove(i);
 176
 177         } else {
 178             LOG.debug("Inserting item: {}", i);
 179             insertTx++;
 180             final MapEntryNode entry = ImmutableNodes.mapEntry(ITEM, NUMBER, i);
 181             cursor.write(entryId.getLastPathArgument(), entry);
 182             usedValues.add(i);
 183         }
 184
 185         cursor.close();
 186
 187         return tx.submit();
 188     }
 189
 190     private void maybeFinish(final long current) {
 191         if ((current - startTime) > timeToTake) {
 192             LOG.debug("Reached max running time, waiting for futures to complete.");
 193             scheduledFuture.cancel(false);
 194
 195             final ListenableFuture<List<Void>> allFutures = Futures.allAsList(futures);
 196
 197             Futures.addCallback(allFutures, new FutureCallback<List<Void>>() {
 198                 @Override
 199                 public void onSuccess(@Nullable final List<Void> result) {
 200                     LOG.debug("All futures completed successfully.");
 201
 202                     final ProduceTransactionsOutput output = new ProduceTransactionsOutputBuilder()
 203                             .setAllTx(allTx)
 204                             .setInsertTx(insertTx)
 205                             .setDeleteTx(deleteTx)
 206                             .build();
 207
 208                     try {
 209                         itemProducer.close();
 210                     } catch (final DOMDataTreeProducerException e) {
 211                         LOG.warn("Failure while closing item producer.", e);
 212                     }
 213
 214                     completionFuture.set(RpcResultBuilder.<ProduceTransactionsOutput>success()
 215                             .withResult(output).build());
 216
 217                     executor.shutdown();
 218                 }
 219
 220                 @Override
 221                 public void onFailure(final Throwable t) {
 222                     LOG.error("Write transactions failed.", t);
 223                     completionFuture.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 224                             .withError(RpcError.ErrorType.APPLICATION, "Unexpected-exception", t).build());
 225
 226                     executor.shutdown();
 227                 }
 228             });
 229         }
 230     }
 231 }