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
  83             try {
  84                 itemProducer.close();
  85             } catch (final DOMDataTreeProducerException exception) {
  86                 LOG.warn("Failure while closing producer.", exception);
  87             }
  88
  89             return Futures.immediateFuture(RpcResultBuilder.<ProduceTransactionsOutput>failed()
  90                 .withError(RpcError.ErrorType.APPLICATION, "Unexpected-exception", e).build());
  91         }
  92
  93         final ProduceTransactionsHandler handler = new ProduceTransactionsHandler(itemProducer,
  94             new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, idListWithKey.node(list.getIdentifier())
  95                 .toOptimized()), input);
  96         handler.doStart();
  97         return handler.future;
  98     }
  99
 100     @Override
 101     ListenableFuture<Void> execWrite(final long txId) {
 102         final int i = random.nextInt(MAX_ITEM + 1);
 103         final DOMDataTreeCursorAwareTransaction tx = itemProducer.createTransaction(false);
 104         final DOMDataTreeWriteCursor cursor = tx.createCursor(idListItem);
 105
 106         final NodeIdentifierWithPredicates entryId = new NodeIdentifierWithPredicates(ITEM, NUMBER, i);
 107         if (usedValues.contains(i)) {
 108             LOG.debug("Deleting item: {}", i);
 109             deleteTx++;
 110             cursor.delete(entryId);
 111             usedValues.remove(i);
 112
 113         } else {
 114             LOG.debug("Inserting item: {}", i);
 115             insertTx++;
 116
 117             final MapEntryNode entry = ImmutableNodes.mapEntryBuilder().withNodeIdentifier(entryId)
 118                     .withChild(ImmutableNodes.leafNode(NUMBER, i)).build();
 119             cursor.write(entryId, entry);
 120             usedValues.add(i);
 121         }
 122
 123         cursor.close();
 124
 125         return tx.submit();
 126     }
 127
 128     @Override
 129     void runFailed(final Throwable cause) {
 130         future.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 131             .withError(RpcError.ErrorType.APPLICATION, "Submit failed", cause).build());
 132     }
 133
 134     @Override
 135     void runSuccessful(final long allTx) {
 136         final ProduceTransactionsOutput output = new ProduceTransactionsOutputBuilder()
 137                 .setAllTx(allTx)
 138                 .setInsertTx(insertTx)
 139                 .setDeleteTx(deleteTx)
 140                 .build();
 141         future.set(RpcResultBuilder.<ProduceTransactionsOutput>success()
 142                 .withResult(output).build());
 143     }
 144
 145     @Override
 146     void runTimedOut(final Exception cause) {
 147         future.set(RpcResultBuilder.<ProduceTransactionsOutput>failed()
 148             .withError(RpcError.ErrorType.APPLICATION,
 149                     "Final submit was timed out by the test provider or was interrupted", cause).build());
 150     }
 151 }