opendaylight/md-sal/sal-inmemory-datastore/src/test/java/org/opendaylight/controller/md/sal/dom/store/impl/InMemoryDataStoreTest.java

   1 /*
   2  * Copyright (c) 2014 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 package org.opendaylight.controller.md.sal.dom.store.impl;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12 import static org.junit.Assert.assertNotNull;
  13 import static org.junit.Assert.assertTrue;
  14
  15 import com.google.common.base.Optional;
  16 import com.google.common.util.concurrent.CheckedFuture;
  17 import com.google.common.util.concurrent.ListenableFuture;
  18 import com.google.common.util.concurrent.MoreExecutors;
  19
  20 import java.util.concurrent.ExecutionException;
  21
  22 import org.junit.Before;
  23 import org.junit.Ignore;
  24 import org.junit.Test;
  25 import org.mockito.Mockito;
  26 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  27 import org.opendaylight.controller.md.sal.dom.store.impl.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
  28 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  29 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  30 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  31 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  32 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  33 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  35 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  36 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  38 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
  39 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  41 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  42
  43
  44 public class InMemoryDataStoreTest {
  45
  46     private SchemaContext schemaContext;
  47     private InMemoryDOMDataStore domStore;
  48
  49     @Before
  50     public void setupStore() {
  51         domStore = new InMemoryDOMDataStore("TEST", MoreExecutors.sameThreadExecutor(),
  52                 MoreExecutors.sameThreadExecutor());
  53         schemaContext = TestModel.createTestContext();
  54         domStore.onGlobalContextUpdated(schemaContext);
  55     }
  56
  57     @Test
  58     public void testTransactionIsolation() throws InterruptedException, ExecutionException {
  59
  60         assertNotNull(domStore);
  61
  62         DOMStoreReadTransaction readTx = domStore.newReadOnlyTransaction();
  63         assertNotNull(readTx);
  64
  65         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
  66         assertNotNull(writeTx);
  67
  68         /**
  69          * Writes /test in writeTx
  70          */
  71         NormalizedNode<?, ?> testNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  72         writeTx.write(TestModel.TEST_PATH, testNode);
  73
  74         /**
  75          * Reads /test from writeTx Read should return container.
  76          */
  77         ListenableFuture<Optional<NormalizedNode<?, ?>>> writeTxContainer = writeTx.read(TestModel.TEST_PATH);
  78         assertEquals("read: isPresent", true, writeTxContainer.get().isPresent());
  79         assertEquals("read: data", testNode, writeTxContainer.get().get());
  80
  81         /**
  82          * Reads /test from readTx Read should return Absent.
  83          */
  84         ListenableFuture<Optional<NormalizedNode<?, ?>>> readTxContainer = readTx.read(TestModel.TEST_PATH);
  85         assertEquals("read: isPresent", false, readTxContainer.get().isPresent());
  86     }
  87
  88     @Test
  89     public void testTransactionCommit() throws InterruptedException, ExecutionException {
  90
  91         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
  92         assertNotNull(writeTx);
  93
  94         /**
  95          * Writes /test in writeTx
  96          */
  97         NormalizedNode<?, ?> testNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  98         writeTx.write(TestModel.TEST_PATH, testNode);
  99
 100         /**
 101          * Reads /test from writeTx Read should return container.
 102          */
 103         ListenableFuture<Optional<NormalizedNode<?, ?>>> writeTxContainer = writeTx.read(TestModel.TEST_PATH);
 104         assertEquals("read: isPresent", true, writeTxContainer.get().isPresent());
 105         assertEquals("read: data", testNode, writeTxContainer.get().get());
 106
 107         DOMStoreThreePhaseCommitCohort cohort = writeTx.ready();
 108
 109         assertThreePhaseCommit(cohort);
 110
 111         Optional<NormalizedNode<?, ?>> afterCommitRead = domStore.newReadOnlyTransaction().read(TestModel.TEST_PATH)
 112                 .get();
 113         assertEquals("After commit read: isPresent", true, afterCommitRead.isPresent());
 114         assertEquals("After commit read: data", testNode, afterCommitRead.get());
 115     }
 116
 117     @Test
 118     public void testDelete() throws Exception {
 119
 120         DOMStoreWriteTransaction writeTx = domStore.newWriteOnlyTransaction();
 121         assertNotNull( writeTx );
 122
 123         // Write /test and commit
 124
 125         writeTx.write( TestModel.TEST_PATH, ImmutableNodes.containerNode( TestModel.TEST_QNAME ) );
 126
 127         assertThreePhaseCommit( writeTx.ready() );
 128
 129         Optional<NormalizedNode<?, ?>> afterCommitRead = domStore.newReadOnlyTransaction().
 130                 read(TestModel.TEST_PATH ).get();
 131         assertEquals( "After commit read: isPresent", true, afterCommitRead.isPresent() );
 132
 133         // Delete /test and verify
 134
 135         writeTx = domStore.newWriteOnlyTransaction();
 136
 137         writeTx.delete( TestModel.TEST_PATH );
 138
 139         assertThreePhaseCommit( writeTx.ready() );
 140
 141         afterCommitRead = domStore.newReadOnlyTransaction().
 142                 read(TestModel.TEST_PATH ).get();
 143         assertEquals( "After commit read: isPresent", false, afterCommitRead.isPresent() );
 144     }
 145
 146     @Test
 147     public void testMerge() throws Exception {
 148
 149         DOMStoreWriteTransaction writeTx = domStore.newWriteOnlyTransaction();
 150         assertNotNull( writeTx );
 151
 152         ContainerNode containerNode = ImmutableContainerNodeBuilder.create()
 153                 .withNodeIdentifier( new NodeIdentifier( TestModel.TEST_QNAME ) )
 154                 .addChild( ImmutableNodes.mapNodeBuilder( TestModel.OUTER_LIST_QNAME )
 155                         .addChild( ImmutableNodes.mapEntry( TestModel.OUTER_LIST_QNAME,
 156                                                             TestModel.ID_QNAME, 1 ) ).build() ).build();
 157
 158         writeTx.merge( TestModel.TEST_PATH, containerNode );
 159
 160         assertThreePhaseCommit( writeTx.ready() );
 161
 162         Optional<NormalizedNode<?, ?>> afterCommitRead = domStore.newReadOnlyTransaction().
 163                 read(TestModel.TEST_PATH ).get();
 164         assertEquals( "After commit read: isPresent", true, afterCommitRead.isPresent() );
 165         assertEquals( "After commit read: data", containerNode, afterCommitRead.get() );
 166
 167         // Merge a new list entry node
 168
 169         writeTx = domStore.newWriteOnlyTransaction();
 170         assertNotNull( writeTx );
 171
 172         containerNode = ImmutableContainerNodeBuilder.create()
 173                 .withNodeIdentifier( new NodeIdentifier( TestModel.TEST_QNAME ) )
 174                 .addChild( ImmutableNodes.mapNodeBuilder( TestModel.OUTER_LIST_QNAME )
 175                         .addChild( ImmutableNodes.mapEntry( TestModel.OUTER_LIST_QNAME,
 176                                                             TestModel.ID_QNAME, 1 ) )
 177                         .addChild( ImmutableNodes.mapEntry( TestModel.OUTER_LIST_QNAME,
 178                                                             TestModel.ID_QNAME, 2 ) ).build() ).build();
 179
 180         writeTx.merge( TestModel.TEST_PATH, containerNode );
 181
 182         assertThreePhaseCommit( writeTx.ready() );
 183
 184         afterCommitRead = domStore.newReadOnlyTransaction().read(TestModel.TEST_PATH ).get();
 185         assertEquals( "After commit read: isPresent", true, afterCommitRead.isPresent() );
 186         assertEquals( "After commit read: data", containerNode, afterCommitRead.get() );
 187     }
 188
 189
 190     @Test
 191     public void testExistsForExistingData() throws Exception {
 192
 193         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
 194         assertNotNull( writeTx );
 195
 196         ContainerNode containerNode = ImmutableContainerNodeBuilder.create()
 197             .withNodeIdentifier( new NodeIdentifier( TestModel.TEST_QNAME ) )
 198             .addChild( ImmutableNodes.mapNodeBuilder( TestModel.OUTER_LIST_QNAME )
 199                 .addChild( ImmutableNodes.mapEntry( TestModel.OUTER_LIST_QNAME,
 200                     TestModel.ID_QNAME, 1 ) ).build() ).build();
 201
 202         writeTx.merge( TestModel.TEST_PATH, containerNode );
 203
 204         CheckedFuture<Boolean, ReadFailedException> exists =
 205             writeTx.exists(TestModel.TEST_PATH);
 206
 207         assertEquals(true, exists.checkedGet());
 208
 209         DOMStoreThreePhaseCommitCohort ready = writeTx.ready();
 210
 211         ready.preCommit().get();
 212
 213         ready.commit().get();
 214
 215         DOMStoreReadTransaction readTx = domStore.newReadOnlyTransaction();
 216         assertNotNull( readTx );
 217
 218         exists =
 219             readTx.exists(TestModel.TEST_PATH);
 220
 221         assertEquals(true, exists.checkedGet());
 222     }
 223
 224     @Test
 225     public void testExistsForNonExistingData() throws Exception {
 226
 227         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
 228         assertNotNull( writeTx );
 229
 230         CheckedFuture<Boolean, ReadFailedException> exists =
 231             writeTx.exists(TestModel.TEST_PATH);
 232
 233         assertEquals(false, exists.checkedGet());
 234
 235         DOMStoreReadTransaction readTx = domStore.newReadOnlyTransaction();
 236         assertNotNull( readTx );
 237
 238         exists =
 239             readTx.exists(TestModel.TEST_PATH);
 240
 241         assertEquals(false, exists.checkedGet());
 242     }
 243
 244     @Test(expected=ReadFailedException.class)
 245     public void testExistsThrowsReadFailedException() throws Exception {
 246
 247         DOMStoreReadTransaction readTx = domStore.newReadOnlyTransaction();
 248         assertNotNull( readTx );
 249
 250         readTx.close();
 251
 252         readTx.exists(TestModel.TEST_PATH).checkedGet();
 253     }
 254
 255
 256
 257     @Test(expected=ReadFailedException.class)
 258     public void testReadWithReadOnlyTransactionClosed() throws Throwable {
 259
 260         DOMStoreReadTransaction readTx = domStore.newReadOnlyTransaction();
 261         assertNotNull( readTx );
 262
 263         readTx.close();
 264
 265         doReadAndThrowEx( readTx );
 266     }
 267
 268     @Test(expected=ReadFailedException.class)
 269     public void testReadWithReadOnlyTransactionFailure() throws Throwable {
 270
 271         DataTreeSnapshot mockSnapshot = Mockito.mock( DataTreeSnapshot.class );
 272         Mockito.doThrow( new RuntimeException( "mock ex" ) ).when( mockSnapshot )
 273         .readNode( Mockito.any( YangInstanceIdentifier.class ) );
 274
 275         DOMStoreReadTransaction readTx = new SnapshotBackedReadTransaction("1", true, mockSnapshot);
 276
 277         doReadAndThrowEx( readTx );
 278     }
 279
 280     @Test(expected=ReadFailedException.class)
 281     public void testReadWithReadWriteTransactionClosed() throws Throwable {
 282
 283         DOMStoreReadTransaction readTx = domStore.newReadWriteTransaction();
 284         assertNotNull( readTx );
 285
 286         readTx.close();
 287
 288         doReadAndThrowEx( readTx );
 289     }
 290
 291     @Test(expected=ReadFailedException.class)
 292     public void testReadWithReadWriteTransactionFailure() throws Throwable {
 293
 294         DataTreeSnapshot mockSnapshot = Mockito.mock( DataTreeSnapshot.class );
 295         DataTreeModification mockModification = Mockito.mock( DataTreeModification.class );
 296         Mockito.doThrow( new RuntimeException( "mock ex" ) ).when( mockModification )
 297         .readNode( Mockito.any( YangInstanceIdentifier.class ) );
 298         Mockito.doReturn( mockModification ).when( mockSnapshot ).newModification();
 299         TransactionReadyPrototype mockReady = Mockito.mock( TransactionReadyPrototype.class );
 300         DOMStoreReadTransaction readTx = new SnapshotBackedReadWriteTransaction("1", false, mockSnapshot, mockReady);
 301
 302         doReadAndThrowEx( readTx );
 303     }
 304
 305     private void doReadAndThrowEx( final DOMStoreReadTransaction readTx ) throws Throwable {
 306
 307         try {
 308             readTx.read(TestModel.TEST_PATH).get();
 309         } catch( ExecutionException e ) {
 310             throw e.getCause();
 311         }
 312     }
 313
 314     @Test(expected=IllegalStateException.class)
 315     public void testWriteWithTransactionReady() throws Exception {
 316
 317         DOMStoreWriteTransaction writeTx = domStore.newWriteOnlyTransaction();
 318
 319         writeTx.ready();
 320
 321         // Should throw ex
 322         writeTx.write( TestModel.TEST_PATH, ImmutableNodes.containerNode( TestModel.TEST_QNAME ) );
 323     }
 324
 325     @Test(expected=IllegalStateException.class)
 326     public void testReadyWithTransactionAlreadyReady() throws Exception {
 327
 328         DOMStoreWriteTransaction writeTx = domStore.newWriteOnlyTransaction();
 329
 330         writeTx.ready();
 331
 332         // Should throw ex
 333         writeTx.ready();
 334     }
 335
 336     @Test
 337     public void testTransactionAbort() throws InterruptedException, ExecutionException {
 338
 339         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
 340         assertNotNull(writeTx);
 341
 342         assertTestContainerWrite(writeTx);
 343
 344         DOMStoreThreePhaseCommitCohort cohort = writeTx.ready();
 345
 346         assertTrue(cohort.canCommit().get().booleanValue());
 347         cohort.preCommit().get();
 348         cohort.abort().get();
 349
 350         Optional<NormalizedNode<?, ?>> afterCommitRead = domStore.newReadOnlyTransaction().read(TestModel.TEST_PATH)
 351                 .get();
 352         assertFalse(afterCommitRead.isPresent());
 353     }
 354
 355     @Test
 356     public void testTransactionChain() throws InterruptedException, ExecutionException {
 357         DOMStoreTransactionChain txChain = domStore.createTransactionChain();
 358         assertNotNull(txChain);
 359
 360         /**
 361          * We alocate new read-write transaction and write /test
 362          *
 363          *
 364          */
 365         DOMStoreReadWriteTransaction firstTx = txChain.newReadWriteTransaction();
 366         assertTestContainerWrite(firstTx);
 367
 368         /**
 369          * First transaction is marked as ready, we are able to allocate chained
 370          * transactions
 371          */
 372         DOMStoreThreePhaseCommitCohort firstWriteTxCohort = firstTx.ready();
 373
 374         /**
 375          * We alocate chained transaction - read transaction, note first one is
 376          * still not commited to datastore.
 377          */
 378         DOMStoreReadTransaction secondReadTx = txChain.newReadOnlyTransaction();
 379
 380         /**
 381          *
 382          * We test if we are able to read data from tx, read should not fail
 383          * since we are using chained transaction.
 384          *
 385          *
 386          */
 387         assertTestContainerExists(secondReadTx);
 388
 389         /**
 390          *
 391          * We alocate next transaction, which is still based on first one, but
 392          * is read-write.
 393          *
 394          */
 395         DOMStoreReadWriteTransaction thirdDeleteTx = txChain.newReadWriteTransaction();
 396
 397         /**
 398          * We test existence of /test in third transaction container should
 399          * still be visible from first one (which is still uncommmited).
 400          *
 401          *
 402          */
 403         assertTestContainerExists(thirdDeleteTx);
 404
 405         /**
 406          * We delete node in third transaction
 407          */
 408         thirdDeleteTx.delete(TestModel.TEST_PATH);
 409
 410         /**
 411          * third transaction is sealed.
 412          */
 413         DOMStoreThreePhaseCommitCohort thirdDeleteTxCohort = thirdDeleteTx.ready();
 414
 415         /**
 416          * We commit first transaction
 417          *
 418          */
 419         assertThreePhaseCommit(firstWriteTxCohort);
 420
 421         // Alocates store transacion
 422         DOMStoreReadTransaction storeReadTx = domStore.newReadOnlyTransaction();
 423         /**
 424          * We verify transaction is commited to store, container should exists
 425          * in datastore.
 426          */
 427         assertTestContainerExists(storeReadTx);
 428         /**
 429          * We commit third transaction
 430          *
 431          */
 432         assertThreePhaseCommit(thirdDeleteTxCohort);
 433     }
 434
 435     @Test
 436     @Ignore
 437     public void testTransactionConflict() throws InterruptedException, ExecutionException {
 438         DOMStoreReadWriteTransaction txOne = domStore.newReadWriteTransaction();
 439         DOMStoreReadWriteTransaction txTwo = domStore.newReadWriteTransaction();
 440         assertTestContainerWrite(txOne);
 441         assertTestContainerWrite(txTwo);
 442
 443         /**
 444          * Commits transaction
 445          */
 446         assertThreePhaseCommit(txOne.ready());
 447
 448         /**
 449          * Asserts that txTwo could not be commited
 450          */
 451         assertFalse(txTwo.ready().canCommit().get());
 452     }
 453
 454     private static void assertThreePhaseCommit(final DOMStoreThreePhaseCommitCohort cohort)
 455             throws InterruptedException, ExecutionException {
 456         assertTrue(cohort.canCommit().get().booleanValue());
 457         cohort.preCommit().get();
 458         cohort.commit().get();
 459     }
 460
 461     private static Optional<NormalizedNode<?, ?>> assertTestContainerWrite(final DOMStoreReadWriteTransaction writeTx)
 462             throws InterruptedException, ExecutionException {
 463         /**
 464          *
 465          * Writes /test in writeTx
 466          *
 467          */
 468         writeTx.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 469
 470         return assertTestContainerExists(writeTx);
 471     }
 472
 473     /**
 474      * Reads /test from readTx Read should return container.
 475      */
 476     private static Optional<NormalizedNode<?, ?>> assertTestContainerExists(final DOMStoreReadTransaction readTx)
 477             throws InterruptedException, ExecutionException {
 478
 479         ListenableFuture<Optional<NormalizedNode<?, ?>>> writeTxContainer = readTx.read(TestModel.TEST_PATH);
 480         assertTrue(writeTxContainer.get().isPresent());
 481         return writeTxContainer.get();
 482     }
 483
 484 }