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.model.api.SchemaContext;
  29
  30 public class ShardDataTreeTest {
  31
  32     SchemaContext fullSchema;
  33
  34     @Before
  35     public void setUp(){
  36         fullSchema = SchemaContextHelper.full();
  37     }
  38
  39     @Test
  40     public void testWrite() throws ExecutionException, InterruptedException {
  41         modify(new ShardDataTree(fullSchema), false, true, true);
  42     }
  43
  44     @Test
  45     public void testMerge() throws ExecutionException, InterruptedException {
  46         modify(new ShardDataTree(fullSchema), true, true, true);
  47     }
  48
  49
  50     private void modify(ShardDataTree shardDataTree, boolean merge, boolean expectedCarsPresent, boolean expectedPeoplePresent) throws ExecutionException, InterruptedException {
  51
  52         assertEquals(fullSchema, shardDataTree.getSchemaContext());
  53
  54         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction("txn-1", null);
  55
  56         DataTreeModification snapshot = transaction.getSnapshot();
  57
  58         assertNotNull(snapshot);
  59
  60         if(merge){
  61             snapshot.merge(CarsModel.BASE_PATH, CarsModel.create());
  62             snapshot.merge(PeopleModel.BASE_PATH, PeopleModel.create());
  63         } else {
  64             snapshot.write(CarsModel.BASE_PATH, CarsModel.create());
  65             snapshot.write(PeopleModel.BASE_PATH, PeopleModel.create());
  66         }
  67
  68         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
  69
  70         cohort.preCommit().get();
  71         cohort.commit().get();
  72
  73
  74         ReadOnlyShardDataTreeTransaction readOnlyShardDataTreeTransaction = shardDataTree.newReadOnlyTransaction("txn-2", null);
  75
  76         DataTreeSnapshot snapshot1 = readOnlyShardDataTreeTransaction.getSnapshot();
  77
  78         Optional<NormalizedNode<?, ?>> optional = snapshot1.readNode(CarsModel.BASE_PATH);
  79
  80         assertEquals(expectedCarsPresent, optional.isPresent());
  81
  82         Optional<NormalizedNode<?, ?>> optional1 = snapshot1.readNode(PeopleModel.BASE_PATH);
  83
  84         assertEquals(expectedPeoplePresent, optional1.isPresent());
  85
  86     }
  87
  88     @Test
  89     public void bug4359AddRemoveCarOnce() throws ExecutionException, InterruptedException {
  90         ShardDataTree shardDataTree = new ShardDataTree(fullSchema);
  91
  92         List<DataTreeCandidateTip> candidates = new ArrayList<>();
  93         candidates.add(addCar(shardDataTree));
  94         candidates.add(removeCar(shardDataTree));
  95
  96         NormalizedNode<?, ?> expected = getCars(shardDataTree);
  97
  98         applyCandidates(shardDataTree, candidates);
  99
 100         NormalizedNode<?, ?> actual = getCars(shardDataTree);
 101
 102         assertEquals(expected, actual);
 103     }
 104
 105     @Test
 106     public void bug4359AddRemoveCarTwice() throws ExecutionException, InterruptedException {
 107         ShardDataTree shardDataTree = new ShardDataTree(fullSchema);
 108
 109         List<DataTreeCandidateTip> candidates = new ArrayList<>();
 110         candidates.add(addCar(shardDataTree));
 111         candidates.add(removeCar(shardDataTree));
 112         candidates.add(addCar(shardDataTree));
 113         candidates.add(removeCar(shardDataTree));
 114
 115         NormalizedNode<?, ?> expected = getCars(shardDataTree);
 116
 117         applyCandidates(shardDataTree, candidates);
 118
 119         NormalizedNode<?, ?> actual = getCars(shardDataTree);
 120
 121         assertEquals(expected, actual);
 122     }
 123
 124     private NormalizedNode<?, ?> getCars(ShardDataTree shardDataTree) {
 125         ReadOnlyShardDataTreeTransaction readOnlyShardDataTreeTransaction = shardDataTree.newReadOnlyTransaction("txn-2", null);
 126         DataTreeSnapshot snapshot1 = readOnlyShardDataTreeTransaction.getSnapshot();
 127
 128         Optional<NormalizedNode<?, ?>> optional = snapshot1.readNode(CarsModel.BASE_PATH);
 129
 130         assertEquals(true, optional.isPresent());
 131
 132         System.out.println(optional.get());
 133
 134         return optional.get();
 135     }
 136
 137     private DataTreeCandidateTip addCar(ShardDataTree shardDataTree) throws ExecutionException, InterruptedException {
 138         return doTransaction(shardDataTree, new DataTreeOperation() {
 139             @Override
 140             public void execute(DataTreeModification snapshot) {
 141                 snapshot.merge(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 142                 snapshot.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 143                 snapshot.write(CarsModel.newCarPath("altima"), CarsModel.newCarEntry("altima", new BigInteger("100")));
 144             }
 145         });
 146     }
 147
 148     private DataTreeCandidateTip removeCar(ShardDataTree shardDataTree) throws ExecutionException, InterruptedException {
 149         return doTransaction(shardDataTree, new DataTreeOperation() {
 150             @Override
 151             public void execute(DataTreeModification snapshot) {
 152                 snapshot.delete(CarsModel.newCarPath("altima"));
 153             }
 154         });
 155     }
 156
 157     private abstract static class DataTreeOperation {
 158         public abstract void execute(DataTreeModification snapshot);
 159     }
 160
 161     private DataTreeCandidateTip doTransaction(ShardDataTree shardDataTree, DataTreeOperation operation)
 162             throws ExecutionException, InterruptedException {
 163         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction("txn-1", null);
 164         DataTreeModification snapshot = transaction.getSnapshot();
 165         operation.execute(snapshot);
 166         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
 167
 168         cohort.canCommit().get();
 169         cohort.preCommit().get();
 170         DataTreeCandidateTip candidate = cohort.getCandidate();
 171         cohort.commit().get();
 172
 173         return candidate;
 174     }
 175
 176     private DataTreeCandidateTip applyCandidates(ShardDataTree shardDataTree, List<DataTreeCandidateTip> candidates)
 177             throws ExecutionException, InterruptedException {
 178         ReadWriteShardDataTreeTransaction transaction = shardDataTree.newReadWriteTransaction("txn-1", null);
 179         DataTreeModification snapshot = transaction.getSnapshot();
 180         for(DataTreeCandidateTip candidateTip : candidates){
 181             DataTreeCandidates.applyToModification(snapshot, candidateTip);
 182         }
 183         ShardDataTreeCohort cohort = shardDataTree.finishTransaction(transaction);
 184
 185         cohort.canCommit().get();
 186         cohort.preCommit().get();
 187         DataTreeCandidateTip candidate = cohort.getCandidate();
 188         cohort.commit().get();
 189
 190         return candidate;
 191     }
 192
 193 }