opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeTest.java

   1 /*
   2  * Copyright (c) 2015 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.cluster.datastore;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNotNull;
  13 import com.google.common.base.Optional;
  14 import java.math.BigInteger;
  15 import java.util.ArrayList;
  16 import java.util.List;
  17 import java.util.concurrent.ExecutionException;
  18 import org.junit.Before;
  19 import org.junit.Test;
  20 import org.opendaylight.controller.md.cluster.datastore.model.CarsModel;
  21 import org.opendaylight.controller.md.cluster.datastore.model.PeopleModel;
  22 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
  23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  24 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateTip;
  25 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidates;
  26 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  27 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
  28 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
  29 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  30
  31 public class ShardDataTreeTest extends AbstractTest {
  32
  33     SchemaContext fullSchema;
  34
  35     @Before
  36     public void setUp(){
  37         fullSchema = SchemaContextHelper.full();
  38     }
  39
  40     @Test
  41     public void testWrite() throws ExecutionException, InterruptedException {
  42         modify(new ShardDataTree(fullSchema, TreeType.OPERATIONAL), false, true, true);
  43     }
  44
  45     @Test
  46     public void testMerge() throws ExecutionException, InterruptedException {
  47         modify(new ShardDataTree(fullSchema, TreeType.OPERATIONAL), true, true, true);
  48     }
  49
  50
  51     private void modify(ShardDataTree shardDataTree, boolean merge, boolean expectedCarsPresent, boolean expectedPeoplePresent) throws ExecutionException, InterruptedException {
  52
  53         assertEquals(fullSchema, shardDataTree.getSchemaContext());
  54
  55         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction(nextTransactionId());
  56
  57         DataTreeModification snapshot = transaction.getSnapshot();
  58
  59         assertNotNull(snapshot);
  60
  61         if(merge){
  62             snapshot.merge(CarsModel.BASE_PATH, CarsModel.create());
  63             snapshot.merge(PeopleModel.BASE_PATH, PeopleModel.create());
  64         } else {
  65             snapshot.write(CarsModel.BASE_PATH, CarsModel.create());
  66             snapshot.write(PeopleModel.BASE_PATH, PeopleModel.create());
  67         }
  68
  69         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
  70
  71         cohort.preCommit().get();
  72         cohort.commit().get();
  73
  74
  75         ReadOnlyShardDataTreeTransaction readOnlyShardDataTreeTransaction = shardDataTree.newReadOnlyTransaction(nextTransactionId());
  76
  77         DataTreeSnapshot snapshot1 = readOnlyShardDataTreeTransaction.getSnapshot();
  78
  79         Optional<NormalizedNode<?, ?>> optional = snapshot1.readNode(CarsModel.BASE_PATH);
  80
  81         assertEquals(expectedCarsPresent, optional.isPresent());
  82
  83         Optional<NormalizedNode<?, ?>> optional1 = snapshot1.readNode(PeopleModel.BASE_PATH);
  84
  85         assertEquals(expectedPeoplePresent, optional1.isPresent());
  86
  87     }
  88
  89     @Test
  90     public void bug4359AddRemoveCarOnce() throws ExecutionException, InterruptedException {
  91         ShardDataTree shardDataTree = new ShardDataTree(fullSchema, TreeType.OPERATIONAL);
  92
  93         List<DataTreeCandidateTip> candidates = new ArrayList<>();
  94         candidates.add(addCar(shardDataTree));
  95         candidates.add(removeCar(shardDataTree));
  96
  97         NormalizedNode<?, ?> expected = getCars(shardDataTree);
  98
  99         applyCandidates(shardDataTree, candidates);
 100
 101         NormalizedNode<?, ?> actual = getCars(shardDataTree);
 102
 103         assertEquals(expected, actual);
 104     }
 105
 106     @Test
 107     public void bug4359AddRemoveCarTwice() throws ExecutionException, InterruptedException {
 108         ShardDataTree shardDataTree = new ShardDataTree(fullSchema, TreeType.OPERATIONAL);
 109
 110         List<DataTreeCandidateTip> candidates = new ArrayList<>();
 111         candidates.add(addCar(shardDataTree));
 112         candidates.add(removeCar(shardDataTree));
 113         candidates.add(addCar(shardDataTree));
 114         candidates.add(removeCar(shardDataTree));
 115
 116         NormalizedNode<?, ?> expected = getCars(shardDataTree);
 117
 118         applyCandidates(shardDataTree, candidates);
 119
 120         NormalizedNode<?, ?> actual = getCars(shardDataTree);
 121
 122         assertEquals(expected, actual);
 123     }
 124
 125     private static NormalizedNode<?, ?> getCars(ShardDataTree shardDataTree) {
 126         ReadOnlyShardDataTreeTransaction readOnlyShardDataTreeTransaction = shardDataTree.newReadOnlyTransaction(nextTransactionId());
 127         DataTreeSnapshot snapshot1 = readOnlyShardDataTreeTransaction.getSnapshot();
 128
 129         Optional<NormalizedNode<?, ?>> optional = snapshot1.readNode(CarsModel.BASE_PATH);
 130
 131         assertEquals(true, optional.isPresent());
 132
 133         return optional.get();
 134     }
 135
 136     private static DataTreeCandidateTip addCar(ShardDataTree shardDataTree) throws ExecutionException, InterruptedException {
 137         return doTransaction(shardDataTree, snapshot -> {
 138                 snapshot.merge(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 139                 snapshot.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 140                 snapshot.write(CarsModel.newCarPath("altima"), CarsModel.newCarEntry("altima", new BigInteger("100")));
 141             });
 142     }
 143
 144     private static DataTreeCandidateTip removeCar(ShardDataTree shardDataTree) throws ExecutionException, InterruptedException {
 145         return doTransaction(shardDataTree, snapshot -> snapshot.delete(CarsModel.newCarPath("altima")));
 146     }
 147
 148     @FunctionalInterface
 149     private static interface DataTreeOperation {
 150         void execute(DataTreeModification snapshot);
 151     }
 152
 153     private static DataTreeCandidateTip doTransaction(ShardDataTree shardDataTree, DataTreeOperation operation)
 154             throws ExecutionException, InterruptedException {
 155         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction(nextTransactionId());
 156         DataTreeModification snapshot = transaction.getSnapshot();
 157         operation.execute(snapshot);
 158         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
 159
 160         cohort.canCommit().get();
 161         cohort.preCommit().get();
 162         DataTreeCandidateTip candidate = cohort.getCandidate();
 163         cohort.commit().get();
 164
 165         return candidate;
 166     }
 167
 168     private static DataTreeCandidateTip applyCandidates(ShardDataTree shardDataTree, List<DataTreeCandidateTip> candidates)
 169             throws ExecutionException, InterruptedException {
 170         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction(nextTransactionId());
 171         DataTreeModification snapshot = transaction.getSnapshot();
 172         for(DataTreeCandidateTip candidateTip : candidates){
 173             DataTreeCandidates.applyToModification(snapshot, candidateTip);
 174         }
 175         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
 176
 177         cohort.canCommit().get();
 178         cohort.preCommit().get();
 179         DataTreeCandidateTip candidate = cohort.getCandidate();
 180         cohort.commit().get();
 181
 182         return candidate;
 183     }
 184
 185 }