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