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