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

   1 /*
   2  * Copyright (c) 2014 Brocade Communications 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.cluster.datastore;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertSame;
  13 import static org.junit.Assert.assertTrue;
  14 import static org.junit.Assert.fail;
  15 import static org.mockito.Mockito.doAnswer;
  16 import static org.mockito.Mockito.doReturn;
  17 import static org.mockito.Mockito.inOrder;
  18 import static org.mockito.Mockito.mock;
  19 import static org.mockito.Mockito.never;
  20 import static org.mockito.Mockito.times;
  21 import static org.mockito.Mockito.verify;
  22 import com.google.common.collect.ImmutableMap;
  23 import com.google.common.util.concurrent.CheckedFuture;
  24 import com.google.common.util.concurrent.FutureCallback;
  25 import com.google.common.util.concurrent.Futures;
  26 import com.google.common.util.concurrent.ListenableFuture;
  27 import com.google.common.util.concurrent.MoreExecutors;
  28 import com.google.common.util.concurrent.SettableFuture;
  29 import com.google.common.util.concurrent.Uninterruptibles;
  30 import java.util.ArrayList;
  31 import java.util.Arrays;
  32 import java.util.Collection;
  33 import java.util.List;
  34 import java.util.concurrent.CountDownLatch;
  35 import java.util.concurrent.ExecutionException;
  36 import java.util.concurrent.SynchronousQueue;
  37 import java.util.concurrent.ThreadPoolExecutor;
  38 import java.util.concurrent.TimeUnit;
  39 import java.util.concurrent.TimeoutException;
  40 import java.util.concurrent.atomic.AtomicReference;
  41 import org.junit.After;
  42 import org.junit.Before;
  43 import org.junit.Test;
  44 import org.mockito.InOrder;
  45 import org.mockito.invocation.InvocationOnMock;
  46 import org.mockito.stubbing.Answer;
  47 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  48 import org.opendaylight.controller.md.sal.common.api.data.DataStoreUnavailableException;
  49 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  50 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  51 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  52 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  53 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  54 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  55 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  56 import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
  57 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  58 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  59 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  60 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  61 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  62 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  63 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  64 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  65
  66 /**
  67  * Unit tests for DOMConcurrentDataCommitCoordinator.
  68  *
  69  * @author Thomas Pantelis
  70  */
  71 public class ConcurrentDOMDataBrokerTest {
  72
  73     private final DOMDataWriteTransaction transaction = mock(DOMDataWriteTransaction.class);
  74     private final DOMStoreThreePhaseCommitCohort mockCohort1 = mock(DOMStoreThreePhaseCommitCohort.class);
  75     private final DOMStoreThreePhaseCommitCohort mockCohort2 = mock(DOMStoreThreePhaseCommitCohort.class);
  76     private final ThreadPoolExecutor futureExecutor =
  77             new ThreadPoolExecutor(0, 1, 5, TimeUnit.SECONDS, new SynchronousQueue<Runnable>());
  78     private ConcurrentDOMDataBroker coordinator;
  79
  80     @Before
  81     public void setup() {
  82         doReturn("tx").when(transaction).getIdentifier();
  83
  84         DOMStore store = new InMemoryDOMDataStore("OPER",
  85             MoreExecutors.sameThreadExecutor());
  86
  87         coordinator = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL, store), futureExecutor);
  88     }
  89
  90     @After
  91     public void tearDown() {
  92         futureExecutor.shutdownNow();
  93     }
  94
  95     @Test
  96     public void testSuccessfulSubmitAsync() throws Throwable {
  97         testSuccessfulSubmit(true);
  98     }
  99
 100     @Test
 101     public void testSuccessfulSubmitSync() throws Throwable {
 102         testSuccessfulSubmit(false);
 103     }
 104
 105     private void testSuccessfulSubmit(final boolean doAsync) throws Throwable {
 106         final CountDownLatch asyncCanCommitContinue = new CountDownLatch(1);
 107         Answer<ListenableFuture<Boolean>> asyncCanCommit = new Answer<ListenableFuture<Boolean>>() {
 108             @Override
 109             public ListenableFuture<Boolean> answer(final InvocationOnMock invocation) {
 110                 final SettableFuture<Boolean> future = SettableFuture.create();
 111                 if(doAsync) {
 112                     new Thread() {
 113                         @Override
 114                         public void run() {
 115                             Uninterruptibles.awaitUninterruptibly(asyncCanCommitContinue,
 116                                     10, TimeUnit.SECONDS);
 117                             future.set(true);
 118                         }
 119                     }.start();
 120                 } else {
 121                     future.set(true);
 122                 }
 123
 124                 return future;
 125             }
 126         };
 127
 128         doAnswer(asyncCanCommit).when(mockCohort1).canCommit();
 129         doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
 130         doReturn(Futures.immediateFuture(null)).when(mockCohort1).commit();
 131
 132         doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
 133         doReturn(Futures.immediateFuture(null)).when(mockCohort2).preCommit();
 134         doReturn(Futures.immediateFuture(null)).when(mockCohort2).commit();
 135
 136         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 137                 transaction, Arrays.asList(mockCohort1, mockCohort2));
 138
 139         final CountDownLatch doneLatch = new CountDownLatch(1);
 140         final AtomicReference<Throwable> caughtEx = new AtomicReference<>();
 141         Futures.addCallback(future, new FutureCallback<Void>() {
 142             @Override
 143             public void onSuccess(final Void result) {
 144                 doneLatch.countDown();
 145             }
 146
 147             @Override
 148             public void onFailure(final Throwable t) {
 149                 caughtEx.set(t);
 150                 doneLatch.countDown();
 151             }
 152         });
 153
 154         asyncCanCommitContinue.countDown();
 155
 156         assertEquals("Submit complete", true, doneLatch.await(5, TimeUnit.SECONDS));
 157
 158         if(caughtEx.get() != null) {
 159             throw caughtEx.get();
 160         }
 161
 162         assertEquals("Task count", doAsync ? 1 : 0, futureExecutor.getTaskCount());
 163
 164         InOrder inOrder = inOrder(mockCohort1, mockCohort2);
 165         inOrder.verify(mockCohort1).canCommit();
 166         inOrder.verify(mockCohort2).canCommit();
 167         inOrder.verify(mockCohort1).preCommit();
 168         inOrder.verify(mockCohort2).preCommit();
 169         inOrder.verify(mockCohort1).commit();
 170         inOrder.verify(mockCohort2).commit();
 171     }
 172
 173     @Test
 174     public void testSubmitWithNegativeCanCommitResponse() throws Exception {
 175         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 176         doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
 177
 178         doReturn(Futures.immediateFuture(false)).when(mockCohort2).canCommit();
 179         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 180
 181         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
 182         doReturn(Futures.immediateFuture(false)).when(mockCohort3).canCommit();
 183         doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
 184
 185         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 186                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 187
 188         assertFailure(future, null, mockCohort1, mockCohort2, mockCohort3);
 189     }
 190
 191     private void assertFailure(final CheckedFuture<Void, TransactionCommitFailedException> future,
 192             final Exception expCause, final DOMStoreThreePhaseCommitCohort... mockCohorts)
 193                     throws Exception {
 194         try {
 195             future.checkedGet(5, TimeUnit.SECONDS);
 196             fail("Expected TransactionCommitFailedException");
 197         } catch (TransactionCommitFailedException e) {
 198             if(expCause != null) {
 199                 assertSame("Expected cause", expCause.getClass(), e.getCause().getClass());
 200             }
 201
 202             InOrder inOrder = inOrder((Object[])mockCohorts);
 203             for(DOMStoreThreePhaseCommitCohort c: mockCohorts) {
 204                 inOrder.verify(c).abort();
 205             }
 206         } catch (TimeoutException e) {
 207             throw e;
 208         }
 209     }
 210
 211     @Test
 212     public void testSubmitWithCanCommitException() throws Exception {
 213         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 214         doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
 215
 216         IllegalStateException cause = new IllegalStateException("mock");
 217         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).canCommit();
 218         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 219
 220         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 221                 transaction, Arrays.asList(mockCohort1, mockCohort2));
 222
 223         assertFailure(future, cause, mockCohort1, mockCohort2);
 224     }
 225
 226     @Test
 227     public void testSubmitWithCanCommitDataStoreUnavailableException() throws Exception {
 228         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 229         doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
 230         NoShardLeaderException rootCause = new NoShardLeaderException("mock");
 231         DataStoreUnavailableException cause = new DataStoreUnavailableException(rootCause.getMessage(), rootCause);
 232         doReturn(Futures.immediateFailedFuture(rootCause)).when(mockCohort2).canCommit();
 233         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 234
 235         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 236             transaction, Arrays.asList(mockCohort1, mockCohort2));
 237
 238         assertFailure(future, cause, mockCohort1, mockCohort2);
 239     }
 240
 241     @Test
 242     public void testSubmitWithPreCommitException() throws Exception {
 243         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 244         doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
 245         doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
 246
 247         doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
 248         IllegalStateException cause = new IllegalStateException("mock");
 249         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).preCommit();
 250         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 251
 252         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
 253         doReturn(Futures.immediateFuture(true)).when(mockCohort3).canCommit();
 254         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock2"))).
 255                 when(mockCohort3).preCommit();
 256         doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
 257
 258         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 259                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 260
 261         assertFailure(future, cause, mockCohort1, mockCohort2, mockCohort3);
 262     }
 263
 264     @Test
 265     public void testSubmitWithCommitException() throws Exception {
 266         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 267         doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
 268         doReturn(Futures.immediateFuture(null)).when(mockCohort1).commit();
 269         doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
 270
 271         doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
 272         doReturn(Futures.immediateFuture(null)).when(mockCohort2).preCommit();
 273         IllegalStateException cause = new IllegalStateException("mock");
 274         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).commit();
 275         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 276
 277         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
 278         doReturn(Futures.immediateFuture(true)).when(mockCohort3).canCommit();
 279         doReturn(Futures.immediateFuture(null)).when(mockCohort3).preCommit();
 280         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock2"))).
 281                 when(mockCohort3).commit();
 282         doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
 283
 284         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 285                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 286
 287         assertFailure(future, cause, mockCohort1, mockCohort2, mockCohort3);
 288     }
 289
 290     @Test
 291     public void testSubmitWithAbortException() throws Exception {
 292         doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
 293         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock abort error"))).
 294                 when(mockCohort1).abort();
 295
 296         IllegalStateException cause = new IllegalStateException("mock canCommit error");
 297         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).canCommit();
 298         doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
 299
 300         CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
 301                 transaction, Arrays.asList(mockCohort1, mockCohort2));
 302
 303         assertFailure(future, cause, mockCohort1, mockCohort2);
 304     }
 305
 306     @Test
 307     public void testCreateReadWriteTransaction(){
 308         DOMStore domStore = mock(DOMStore.class);
 309         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 310                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 311         dataBroker.newReadWriteTransaction();
 312
 313         verify(domStore, never()).newReadWriteTransaction();
 314     }
 315
 316
 317     @Test
 318     public void testCreateWriteOnlyTransaction(){
 319         DOMStore domStore = mock(DOMStore.class);
 320         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 321                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 322         dataBroker.newWriteOnlyTransaction();
 323
 324         verify(domStore, never()).newWriteOnlyTransaction();
 325     }
 326
 327     @Test
 328     public void testCreateReadOnlyTransaction(){
 329         DOMStore domStore = mock(DOMStore.class);
 330         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 331                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 332         dataBroker.newReadOnlyTransaction();
 333
 334         verify(domStore, never()).newReadOnlyTransaction();
 335     }
 336
 337     @Test
 338     public void testLazySubTransactionCreationForReadWriteTransactions(){
 339         DOMStore configDomStore = mock(DOMStore.class);
 340         DOMStore operationalDomStore = mock(DOMStore.class);
 341         DOMStoreReadWriteTransaction storeTxn = mock(DOMStoreReadWriteTransaction.class);
 342
 343         doReturn(storeTxn).when(operationalDomStore).newReadWriteTransaction();
 344         doReturn(storeTxn).when(configDomStore).newReadWriteTransaction();
 345
 346         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 347                 operationalDomStore, LogicalDatastoreType.CONFIGURATION, configDomStore), futureExecutor);
 348         DOMDataReadWriteTransaction dataTxn = dataBroker.newReadWriteTransaction();
 349
 350         dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 351         dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 352         dataTxn.read(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build());
 353
 354         verify(configDomStore, never()).newReadWriteTransaction();
 355         verify(operationalDomStore, times(1)).newReadWriteTransaction();
 356
 357         dataTxn.put(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 358
 359         verify(configDomStore, times(1)).newReadWriteTransaction();
 360         verify(operationalDomStore, times(1)).newReadWriteTransaction();
 361
 362     }
 363
 364     @Test
 365     public void testLazySubTransactionCreationForWriteOnlyTransactions(){
 366         DOMStore configDomStore = mock(DOMStore.class);
 367         DOMStore operationalDomStore = mock(DOMStore.class);
 368         DOMStoreWriteTransaction storeTxn = mock(DOMStoreWriteTransaction.class);
 369
 370         doReturn(storeTxn).when(operationalDomStore).newWriteOnlyTransaction();
 371         doReturn(storeTxn).when(configDomStore).newWriteOnlyTransaction();
 372
 373         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 374                 operationalDomStore, LogicalDatastoreType.CONFIGURATION, configDomStore), futureExecutor);
 375         DOMDataWriteTransaction dataTxn = dataBroker.newWriteOnlyTransaction();
 376
 377         dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 378         dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 379
 380         verify(configDomStore, never()).newWriteOnlyTransaction();
 381         verify(operationalDomStore, times(1)).newWriteOnlyTransaction();
 382
 383         dataTxn.put(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 384
 385         verify(configDomStore, times(1)).newWriteOnlyTransaction();
 386         verify(operationalDomStore, times(1)).newWriteOnlyTransaction();
 387
 388     }
 389
 390
 391     @Test
 392     public void testLazySubTransactionCreationForReadOnlyTransactions(){
 393         DOMStore configDomStore = mock(DOMStore.class);
 394         DOMStore operationalDomStore = mock(DOMStore.class);
 395         DOMStoreReadTransaction storeTxn = mock(DOMStoreReadTransaction.class);
 396
 397         doReturn(storeTxn).when(operationalDomStore).newReadOnlyTransaction();
 398         doReturn(storeTxn).when(configDomStore).newReadOnlyTransaction();
 399
 400         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 401                 operationalDomStore, LogicalDatastoreType.CONFIGURATION, configDomStore), futureExecutor);
 402         DOMDataReadOnlyTransaction dataTxn = dataBroker.newReadOnlyTransaction();
 403
 404         dataTxn.read(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build());
 405         dataTxn.read(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build());
 406
 407         verify(configDomStore, never()).newReadOnlyTransaction();
 408         verify(operationalDomStore, times(1)).newReadOnlyTransaction();
 409
 410         dataTxn.read(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.builder().build());
 411
 412         verify(configDomStore, times(1)).newReadOnlyTransaction();
 413         verify(operationalDomStore, times(1)).newReadOnlyTransaction();
 414
 415     }
 416
 417     @Test
 418     public void testSubmitWithOnlyOneSubTransaction() throws InterruptedException {
 419         DOMStore configDomStore = mock(DOMStore.class);
 420         DOMStore operationalDomStore = mock(DOMStore.class);
 421         DOMStoreReadWriteTransaction mockStoreReadWriteTransaction = mock(DOMStoreReadWriteTransaction.class);
 422         DOMStoreThreePhaseCommitCohort mockCohort = mock(DOMStoreThreePhaseCommitCohort.class);
 423
 424         doReturn(mockStoreReadWriteTransaction).when(operationalDomStore).newReadWriteTransaction();
 425         doReturn(mockCohort).when(mockStoreReadWriteTransaction).ready();
 426         doReturn(Futures.immediateFuture(false)).when(mockCohort).canCommit();
 427         doReturn(Futures.immediateFuture(null)).when(mockCohort).abort();
 428
 429         final CountDownLatch latch = new CountDownLatch(1);
 430         final List<DOMStoreThreePhaseCommitCohort> commitCohorts = new ArrayList();
 431
 432         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 433                 operationalDomStore, LogicalDatastoreType.CONFIGURATION, configDomStore), futureExecutor) {
 434             @Override
 435             public CheckedFuture<Void, TransactionCommitFailedException> submit(DOMDataWriteTransaction transaction, Collection<DOMStoreThreePhaseCommitCohort> cohorts) {
 436                 commitCohorts.addAll(cohorts);
 437                 latch.countDown();
 438                 return super.submit(transaction, cohorts);
 439             }
 440         };
 441         DOMDataReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
 442
 443         domDataReadWriteTransaction.delete(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build());
 444
 445         domDataReadWriteTransaction.submit();
 446
 447         latch.await(10, TimeUnit.SECONDS);
 448
 449         assertTrue(commitCohorts.size() == 1);
 450     }
 451
 452     @Test
 453     public void testSubmitWithOnlyTwoSubTransactions() throws InterruptedException {
 454         DOMStore configDomStore = mock(DOMStore.class);
 455         DOMStore operationalDomStore = mock(DOMStore.class);
 456         DOMStoreReadWriteTransaction operationalTransaction = mock(DOMStoreReadWriteTransaction.class);
 457         DOMStoreReadWriteTransaction configTransaction = mock(DOMStoreReadWriteTransaction.class);
 458         DOMStoreThreePhaseCommitCohort mockCohortOperational = mock(DOMStoreThreePhaseCommitCohort.class);
 459         DOMStoreThreePhaseCommitCohort mockCohortConfig = mock(DOMStoreThreePhaseCommitCohort.class);
 460
 461         doReturn(operationalTransaction).when(operationalDomStore).newReadWriteTransaction();
 462         doReturn(configTransaction).when(configDomStore).newReadWriteTransaction();
 463
 464         doReturn(mockCohortOperational).when(operationalTransaction).ready();
 465         doReturn(Futures.immediateFuture(false)).when(mockCohortOperational).canCommit();
 466         doReturn(Futures.immediateFuture(null)).when(mockCohortOperational).abort();
 467
 468         doReturn(mockCohortConfig).when(configTransaction).ready();
 469         doReturn(Futures.immediateFuture(false)).when(mockCohortConfig).canCommit();
 470         doReturn(Futures.immediateFuture(null)).when(mockCohortConfig).abort();
 471
 472
 473         final CountDownLatch latch = new CountDownLatch(1);
 474         final List<DOMStoreThreePhaseCommitCohort> commitCohorts = new ArrayList();
 475
 476         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 477                 operationalDomStore, LogicalDatastoreType.CONFIGURATION, configDomStore), futureExecutor) {
 478             @Override
 479             public CheckedFuture<Void, TransactionCommitFailedException> submit(DOMDataWriteTransaction transaction, Collection<DOMStoreThreePhaseCommitCohort> cohorts) {
 480                 commitCohorts.addAll(cohorts);
 481                 latch.countDown();
 482                 return super.submit(transaction, cohorts);
 483             }
 484         };
 485         DOMDataReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
 486
 487         domDataReadWriteTransaction.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 488         domDataReadWriteTransaction.merge(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 489
 490         domDataReadWriteTransaction.submit();
 491
 492         latch.await(10, TimeUnit.SECONDS);
 493
 494         assertTrue(commitCohorts.size() == 2);
 495     }
 496
 497     @Test
 498     public void testCreateTransactionChain(){
 499         DOMStore domStore = mock(DOMStore.class);
 500         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 501                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 502
 503         dataBroker.createTransactionChain(mock(TransactionChainListener.class));
 504
 505         verify(domStore, times(2)).createTransactionChain();
 506
 507     }
 508
 509     @Test
 510     public void testCreateTransactionOnChain(){
 511         DOMStore domStore = mock(DOMStore.class);
 512         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 513                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 514
 515         DOMStoreReadWriteTransaction operationalTransaction = mock(DOMStoreReadWriteTransaction.class);
 516         DOMStoreTransactionChain mockChain = mock(DOMStoreTransactionChain.class);
 517
 518         doReturn(mockChain).when(domStore).createTransactionChain();
 519         doReturn(operationalTransaction).when(mockChain).newWriteOnlyTransaction();
 520
 521         DOMTransactionChain transactionChain = dataBroker.createTransactionChain(mock(TransactionChainListener.class));
 522
 523         DOMDataWriteTransaction domDataWriteTransaction = transactionChain.newWriteOnlyTransaction();
 524
 525         verify(mockChain, never()).newWriteOnlyTransaction();
 526
 527         domDataWriteTransaction.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.builder().build(), mock(NormalizedNode.class));
 528     }
 529
 530     @Test
 531     public void testEmptyTransactionSubmitSucceeds() throws ExecutionException, InterruptedException {
 532         DOMStore domStore = mock(DOMStore.class);
 533         ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL,
 534                 domStore, LogicalDatastoreType.CONFIGURATION, domStore), futureExecutor);
 535
 536         CheckedFuture<Void, TransactionCommitFailedException> submit1 = dataBroker.newWriteOnlyTransaction().submit();
 537
 538         assertNotNull(submit1);
 539
 540         submit1.get();
 541
 542         CheckedFuture<Void, TransactionCommitFailedException> submit2 = dataBroker.newReadWriteTransaction().submit();
 543
 544         assertNotNull(submit2);
 545
 546         submit2.get();
 547     }
 548
 549 }