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