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 package org.opendaylight.controller.clustering.it.provider.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.FluentFuture;
  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.Collections;
  17 import java.util.HashSet;
  18 import java.util.Set;
  19 import java.util.SplittableRandom;
  20 import java.util.concurrent.ExecutionException;
  21 import java.util.concurrent.TimeUnit;
  22 import java.util.concurrent.TimeoutException;
  23 import org.eclipse.jdt.annotation.NonNull;
  24 import org.opendaylight.mdsal.common.api.CommitInfo;
  25 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  26 import org.opendaylight.mdsal.dom.api.DOMDataTreeCursorAwareTransaction;
  27 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  28 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
  29 import org.opendaylight.mdsal.dom.api.DOMDataTreeProducerException;
  30 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
  31 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteCursor;
  32 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsInput;
  33 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsOutput;
  34 import org.opendaylight.yang.gen.v1.tag.opendaylight.org._2017.controller.yang.lowlevel.control.rev170215.ProduceTransactionsOutputBuilder;
  35 import org.opendaylight.yangtools.yang.common.RpcError;
  36 import org.opendaylight.yangtools.yang.common.RpcResult;
  37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  40 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  41 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 @Deprecated(forRemoval = true)
  47 public final class ProduceTransactionsHandler extends AbstractTransactionHandler {
  48     private static final Logger LOG = LoggerFactory.getLogger(ProduceTransactionsHandler.class);
  49
  50     private final SettableFuture<RpcResult<ProduceTransactionsOutput>> future = SettableFuture.create();
  51     private final SplittableRandom random = new SplittableRandom();
  52     private final Set<Integer> usedValues = new HashSet<>();
  53     private final DOMDataTreeIdentifier idListItem;
  54     private final DOMDataTreeProducer itemProducer;
  55
  56     private long insertTx = 0;
  57     private long deleteTx = 0;
  58
  59     private ProduceTransactionsHandler(final DOMDataTreeProducer producer, final DOMDataTreeIdentifier idListItem,
  60             final ProduceTransactionsInput input) {
  61         super(input);
  62         this.itemProducer = requireNonNull(producer);
  63         this.idListItem = requireNonNull(idListItem);
  64     }
  65
  66     public static ListenableFuture<RpcResult<ProduceTransactionsOutput>> start(
  67             final DOMDataTreeService domDataTreeService, final ProduceTransactionsInput input) {
  68         final String id = input.getId();
  69         LOG.debug("Filling the item list {} with initial values.", id);
  70
  71         final YangInstanceIdentifier idListWithKey = ID_INT_YID.node(NodeIdentifierWithPredicates.of(ID_INT, ID, id));
  72
  73         final DOMDataTreeProducer itemProducer = domDataTreeService.createProducer(
  74             Collections.singleton(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey)));
  75
  76         final DOMDataTreeCursorAwareTransaction tx = itemProducer.createTransaction(false);
  77         final DOMDataTreeWriteCursor cursor =
  78                 tx.createCursor(new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey));
  79
  80         final MapNode list = ImmutableNodes.mapNodeBuilder(ITEM).build();
  81         cursor.write(list.getIdentifier(), list);
  82         cursor.close();
  83
  84         try {
  85             tx.commit().get(INIT_TX_TIMEOUT_SECONDS, TimeUnit.SECONDS);
  86         } catch (InterruptedException | ExecutionException | TimeoutException e) {
  87             LOG.warn("Unable to fill the initial item list.", e);
  88             closeProducer(itemProducer);
  89
  90             return Futures.immediateFuture(RpcResultBuilder.<ProduceTransactionsOutput>failed()
  91                 .withError(RpcError.ErrorType.APPLICATION, "Unexpected-exception", e).build());
  92         }
  93
  94         final ProduceTransactionsHandler handler = new ProduceTransactionsHandler(itemProducer,
  95             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey.node(list.getIdentifier())
  96                 .toOptimized()), input);
  97         // It is handler's responsibility to close itemProducer when the work is finished.
  98         handler.doStart();
  99         return handler.future;
 100     }
 101
 102     private static void closeProducer(final DOMDataTreeProducer producer) {
 103         try {
 104             producer.close();
 105         } catch (final DOMDataTreeProducerException exception) {
 106             LOG.warn("Failure while closing producer.", exception);
 107         }
 108     }
 109
 110     @Override
 111     FluentFuture<? extends @NonNull CommitInfo> execWrite(final long txId) {
 112         final int i = random.nextInt(MAX_ITEM + 1);
 113         final DOMDataTreeCursorAwareTransaction tx = itemProducer.createTransaction(false);
 114         final DOMDataTreeWriteCursor cursor = tx.createCursor(idListItem);
 115
 116         final NodeIdentifierWithPredicates entryId = NodeIdentifierWithPredicates.of(ITEM, NUMBER, i);
 117         if (usedValues.contains(i)) {
 118             LOG.debug("Deleting item: {}", i);
 119             deleteTx++;
 120             cursor.delete(entryId);
 121             usedValues.remove(i);
 122
 123         } else {
 124             LOG.debug("Inserting item: {}", i);
 125             insertTx++;
 126
 127             final MapEntryNode entry = ImmutableNodes.mapEntryBuilder().withNodeIdentifier(entryId)
 128                     .withChild(ImmutableNodes.leafNode(NUMBER, i)).build();
 129             cursor.write(entryId, entry);
 130             usedValues.add(i);
 131         }
 132
 133         cursor.close();
 134
 135         return tx.commit();
 136     }
 137
 138     @Override
 139     void runFailed(final Throwable cause, final long txId) {
 140         closeProducer(itemProducer);
 141         future.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 142             .withError(RpcError.ErrorType.APPLICATION, "Commit failed for tx # " + txId, cause).build());
 143     }
 144
 145     @Override
 146     void runSuccessful(final long allTx) {
 147         closeProducer(itemProducer);
 148         final ProduceTransactionsOutput output = new ProduceTransactionsOutputBuilder()
 149                 .setAllTx(allTx)
 150                 .setInsertTx(insertTx)
 151                 .setDeleteTx(deleteTx)
 152                 .build();
 153         future.set(RpcResultBuilder.<ProduceTransactionsOutput>success()
 154                 .withResult(output).build());
 155     }
 156
 157     @Override
 158     void runTimedOut(final String cause) {
 159         closeProducer(itemProducer);
 160         future.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 161             .withError(RpcError.ErrorType.APPLICATION, cause).build());
 162     }
 163 }