Integrate MRI projects for Neon
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / databroker / ConcurrentDOMDataBrokerTest.java
index 8aca70df01bb3cdf38149d18693e91d7647ee6a2..7f0e0f5577621ca26cff4ab371c964108f727c60 100644 (file)
@@ -19,10 +19,14 @@ import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
+import static org.opendaylight.yangtools.util.concurrent.FluentFutures.immediateFalseFluentFuture;
+import static org.opendaylight.yangtools.util.concurrent.FluentFutures.immediateNullFluentFuture;
+import static org.opendaylight.yangtools.util.concurrent.FluentFutures.immediateTrueFluentFuture;
 
 import com.google.common.base.Throwables;
+import com.google.common.collect.ClassToInstanceMap;
 import com.google.common.collect.ImmutableMap;
-import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FluentFuture;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -33,7 +37,6 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.SynchronousQueue;
@@ -48,26 +51,28 @@ import org.mockito.InOrder;
 import org.mockito.stubbing.Answer;
 import org.opendaylight.controller.cluster.datastore.DistributedDataStore;
 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
-import org.opendaylight.controller.md.sal.common.api.data.DataStoreUnavailableException;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeCommitCohortRegistry;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
-import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
-import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
-import org.opendaylight.controller.sal.core.spi.data.DOMStore;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
+import org.opendaylight.mdsal.common.api.CommitInfo;
+import org.opendaylight.mdsal.common.api.DataStoreUnavailableException;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.common.api.TransactionCommitFailedException;
+import org.opendaylight.mdsal.dom.api.DOMDataBrokerExtension;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeService;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeCommitCohort;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeCommitCohortRegistry;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
+import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
+import org.opendaylight.mdsal.dom.api.DOMTransactionChainListener;
+import org.opendaylight.mdsal.dom.broker.TransactionCommitFailedExceptionMapper;
+import org.opendaylight.mdsal.dom.spi.store.DOMStore;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadWriteTransaction;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreThreePhaseCommitCohort;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreTransactionChain;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreWriteTransaction;
+import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataStore;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 
@@ -78,7 +83,7 @@ import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  */
 public class ConcurrentDOMDataBrokerTest {
 
-    private final DOMDataWriteTransaction transaction = mock(DOMDataWriteTransaction.class);
+    private final DOMDataTreeWriteTransaction transaction = mock(DOMDataTreeWriteTransaction.class);
     private final DOMStoreThreePhaseCommitCohort mockCohort1 = mock(DOMStoreThreePhaseCommitCohort.class);
     private final DOMStoreThreePhaseCommitCohort mockCohort2 = mock(DOMStoreThreePhaseCommitCohort.class);
     private final ThreadPoolExecutor futureExecutor =
@@ -89,8 +94,7 @@ public class ConcurrentDOMDataBrokerTest {
     public void setup() {
         doReturn("tx").when(transaction).getIdentifier();
 
-        DOMStore store = new InMemoryDOMDataStore("OPER",
-            MoreExecutors.newDirectExecutorService());
+        DOMStore store = new InMemoryDOMDataStore("OPER", MoreExecutors.newDirectExecutorService());
 
         coordinator = new ConcurrentDOMDataBroker(ImmutableMap.of(LogicalDatastoreType.OPERATIONAL, store),
                 futureExecutor);
@@ -116,37 +120,34 @@ public class ConcurrentDOMDataBrokerTest {
         Answer<ListenableFuture<Boolean>> asyncCanCommit = invocation -> {
             final SettableFuture<Boolean> future = SettableFuture.create();
             if (doAsync) {
-                new Thread() {
-                    @Override
-                    public void run() {
-                        Uninterruptibles.awaitUninterruptibly(asyncCanCommitContinue,
-                                10, TimeUnit.SECONDS);
-                        future.set(true);
-                    }
-                }.start();
+                new Thread(() -> {
+                    Uninterruptibles.awaitUninterruptibly(asyncCanCommitContinue,
+                            10, TimeUnit.SECONDS);
+                    future.set(Boolean.TRUE);
+                }).start();
             } else {
-                future.set(true);
+                future.set(Boolean.TRUE);
             }
 
             return future;
         };
 
         doAnswer(asyncCanCommit).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).commit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).preCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).commit();
 
-        doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).commit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort2).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).preCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).commit();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
-                transaction, Arrays.asList(mockCohort1, mockCohort2));
+        ListenableFuture<? extends CommitInfo> future =
+                coordinator.commit(transaction, Arrays.asList(mockCohort1, mockCohort2));
 
         final CountDownLatch doneLatch = new CountDownLatch(1);
         final AtomicReference<Throwable> caughtEx = new AtomicReference<>();
-        Futures.addCallback(future, new FutureCallback<Void>() {
+        Futures.addCallback(future, new FutureCallback<CommitInfo>() {
             @Override
-            public void onSuccess(final Void result) {
+            public void onSuccess(final CommitInfo result) {
                 doneLatch.countDown();
             }
 
@@ -155,14 +156,15 @@ public class ConcurrentDOMDataBrokerTest {
                 caughtEx.set(failure);
                 doneLatch.countDown();
             }
-        });
+        }, MoreExecutors.directExecutor());
 
         asyncCanCommitContinue.countDown();
 
-        assertEquals("Submit complete", true, doneLatch.await(5, TimeUnit.SECONDS));
+        assertTrue("Submit complete", doneLatch.await(5, TimeUnit.SECONDS));
 
         if (caughtEx.get() != null) {
-            Throwables.propagate(caughtEx.get());
+            Throwables.throwIfUnchecked(caughtEx.get());
+            throw new RuntimeException(caughtEx.get());
         }
 
         assertEquals("Task count", doAsync ? 1 : 0, futureExecutor.getTaskCount());
@@ -178,31 +180,31 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithNegativeCanCommitResponse() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).abort();
 
-        doReturn(Futures.immediateFuture(false)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(Futures.immediateFuture(Boolean.FALSE)).when(mockCohort2).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
-        doReturn(Futures.immediateFuture(false)).when(mockCohort3).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
+        doReturn(Futures.immediateFuture(Boolean.FALSE)).when(mockCohort3).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort3).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        ListenableFuture<? extends CommitInfo> future = coordinator.commit(
                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 
         assertFailure(future, null, mockCohort1, mockCohort2, mockCohort3);
     }
 
-    private static void assertFailure(final CheckedFuture<Void, TransactionCommitFailedException> future,
-            final Exception expCause, final DOMStoreThreePhaseCommitCohort... mockCohorts)
-                    throws Exception {
+    private static void assertFailure(final ListenableFuture<?> future, final Exception expCause,
+            final DOMStoreThreePhaseCommitCohort... mockCohorts) throws Exception {
         try {
-            future.checkedGet(5, TimeUnit.SECONDS);
+            future.get(5, TimeUnit.SECONDS);
             fail("Expected TransactionCommitFailedException");
-        } catch (TransactionCommitFailedException e) {
+        } catch (ExecutionException e) {
+            TransactionCommitFailedException tcf = TransactionCommitFailedExceptionMapper.COMMIT_ERROR_MAPPER.apply(e);
             if (expCause != null) {
-                assertSame("Expected cause", expCause.getClass(), e.getCause().getClass());
+                assertSame("Expected cause", expCause.getClass(), tcf.getCause().getClass());
             }
 
             InOrder inOrder = inOrder((Object[])mockCohorts);
@@ -216,14 +218,14 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithCanCommitException() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).abort();
 
         IllegalStateException cause = new IllegalStateException("mock");
         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        FluentFuture<? extends CommitInfo> future = coordinator.commit(
                 transaction, Arrays.asList(mockCohort1, mockCohort2));
 
         assertFailure(future, cause, mockCohort1, mockCohort2);
@@ -231,14 +233,14 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithCanCommitDataStoreUnavailableException() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).abort();
         NoShardLeaderException rootCause = new NoShardLeaderException("mock");
         DataStoreUnavailableException cause = new DataStoreUnavailableException(rootCause.getMessage(), rootCause);
         doReturn(Futures.immediateFailedFuture(rootCause)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        FluentFuture<? extends CommitInfo> future = coordinator.commit(
             transaction, Arrays.asList(mockCohort1, mockCohort2));
 
         assertFailure(future, cause, mockCohort1, mockCohort2);
@@ -246,22 +248,22 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithPreCommitException() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).preCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).abort();
 
-        doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort2).canCommit();
         IllegalStateException cause = new IllegalStateException("mock");
         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
-        doReturn(Futures.immediateFuture(true)).when(mockCohort3).canCommit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort3).canCommit();
         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock2")))
                 .when(mockCohort3).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort3).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        FluentFuture<? extends CommitInfo> future = coordinator.commit(
                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 
         assertFailure(future, cause, mockCohort1, mockCohort2, mockCohort3);
@@ -269,25 +271,25 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithCommitException() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).preCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).commit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort1).abort();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).preCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).commit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort1).abort();
 
-        doReturn(Futures.immediateFuture(true)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).preCommit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort2).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).preCommit();
         IllegalStateException cause = new IllegalStateException("mock");
         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).commit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
         DOMStoreThreePhaseCommitCohort mockCohort3 = mock(DOMStoreThreePhaseCommitCohort.class);
-        doReturn(Futures.immediateFuture(true)).when(mockCohort3).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort3).preCommit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort3).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort3).preCommit();
         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock2")))
                 .when(mockCohort3).commit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort3).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort3).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        FluentFuture<? extends CommitInfo> future = coordinator.commit(
                 transaction, Arrays.asList(mockCohort1, mockCohort2, mockCohort3));
 
         assertFailure(future, cause, mockCohort1, mockCohort2, mockCohort3);
@@ -295,15 +297,15 @@ public class ConcurrentDOMDataBrokerTest {
 
     @Test
     public void testSubmitWithAbortException() throws Exception {
-        doReturn(Futures.immediateFuture(true)).when(mockCohort1).canCommit();
+        doReturn(immediateTrueFluentFuture()).when(mockCohort1).canCommit();
         doReturn(Futures.immediateFailedFuture(new IllegalStateException("mock abort error")))
                 .when(mockCohort1).abort();
 
         IllegalStateException cause = new IllegalStateException("mock canCommit error");
         doReturn(Futures.immediateFailedFuture(cause)).when(mockCohort2).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort2).abort();
+        doReturn(immediateNullFluentFuture()).when(mockCohort2).abort();
 
-        CheckedFuture<Void, TransactionCommitFailedException> future = coordinator.submit(
+        FluentFuture<? extends CommitInfo> future = coordinator.commit(
                 transaction, Arrays.asList(mockCohort1, mockCohort2));
 
         assertFailure(future, cause, mockCohort1, mockCohort2);
@@ -357,7 +359,7 @@ public class ConcurrentDOMDataBrokerTest {
         try (ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(
                 LogicalDatastoreType.OPERATIONAL, operationalDomStore, LogicalDatastoreType.CONFIGURATION,
                 configDomStore), futureExecutor)) {
-            DOMDataReadWriteTransaction dataTxn = dataBroker.newReadWriteTransaction();
+            DOMDataTreeReadWriteTransaction dataTxn = dataBroker.newReadWriteTransaction();
 
             dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY, mock(NormalizedNode.class));
             dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY, mock(NormalizedNode.class));
@@ -386,7 +388,7 @@ public class ConcurrentDOMDataBrokerTest {
         try (ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(
                 LogicalDatastoreType.OPERATIONAL, operationalDomStore, LogicalDatastoreType.CONFIGURATION,
                 configDomStore), futureExecutor)) {
-            DOMDataWriteTransaction dataTxn = dataBroker.newWriteOnlyTransaction();
+            DOMDataTreeWriteTransaction dataTxn = dataBroker.newWriteOnlyTransaction();
 
             dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY, mock(NormalizedNode.class));
             dataTxn.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY, mock(NormalizedNode.class));
@@ -413,7 +415,7 @@ public class ConcurrentDOMDataBrokerTest {
         try (ConcurrentDOMDataBroker dataBroker = new ConcurrentDOMDataBroker(ImmutableMap.of(
                 LogicalDatastoreType.OPERATIONAL, operationalDomStore, LogicalDatastoreType.CONFIGURATION,
                 configDomStore), futureExecutor)) {
-            DOMDataReadOnlyTransaction dataTxn = dataBroker.newReadOnlyTransaction();
+            DOMDataTreeReadTransaction dataTxn = dataBroker.newReadOnlyTransaction();
 
             dataTxn.read(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY);
             dataTxn.read(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY);
@@ -437,8 +439,8 @@ public class ConcurrentDOMDataBrokerTest {
 
         doReturn(mockStoreReadWriteTransaction).when(operationalDomStore).newReadWriteTransaction();
         doReturn(mockCohort).when(mockStoreReadWriteTransaction).ready();
-        doReturn(Futures.immediateFuture(false)).when(mockCohort).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohort).abort();
+        doReturn(immediateFalseFluentFuture()).when(mockCohort).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohort).abort();
 
         final CountDownLatch latch = new CountDownLatch(1);
         final List<DOMStoreThreePhaseCommitCohort> commitCohorts = new ArrayList<>();
@@ -447,18 +449,18 @@ public class ConcurrentDOMDataBrokerTest {
                 LogicalDatastoreType.OPERATIONAL, operationalDomStore, LogicalDatastoreType.CONFIGURATION,
                 configDomStore), futureExecutor) {
             @Override
-            public CheckedFuture<Void, TransactionCommitFailedException> submit(DOMDataWriteTransaction writeTx,
+            public FluentFuture<? extends CommitInfo> commit(DOMDataTreeWriteTransaction writeTx,
                     Collection<DOMStoreThreePhaseCommitCohort> cohorts) {
                 commitCohorts.addAll(cohorts);
                 latch.countDown();
-                return super.submit(writeTx, cohorts);
+                return super.commit(writeTx, cohorts);
             }
         }) {
-            DOMDataReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
+            DOMDataTreeReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
 
             domDataReadWriteTransaction.delete(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY);
 
-            domDataReadWriteTransaction.submit();
+            domDataReadWriteTransaction.commit();
 
             assertTrue(latch.await(10, TimeUnit.SECONDS));
 
@@ -479,12 +481,12 @@ public class ConcurrentDOMDataBrokerTest {
         doReturn(configTransaction).when(configDomStore).newReadWriteTransaction();
 
         doReturn(mockCohortOperational).when(operationalTransaction).ready();
-        doReturn(Futures.immediateFuture(false)).when(mockCohortOperational).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohortOperational).abort();
+        doReturn(immediateFalseFluentFuture()).when(mockCohortOperational).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohortOperational).abort();
 
         doReturn(mockCohortConfig).when(configTransaction).ready();
-        doReturn(Futures.immediateFuture(false)).when(mockCohortConfig).canCommit();
-        doReturn(Futures.immediateFuture(null)).when(mockCohortConfig).abort();
+        doReturn(immediateFalseFluentFuture()).when(mockCohortConfig).canCommit();
+        doReturn(immediateNullFluentFuture()).when(mockCohortConfig).abort();
 
         final CountDownLatch latch = new CountDownLatch(1);
         final List<DOMStoreThreePhaseCommitCohort> commitCohorts = new ArrayList<>();
@@ -493,21 +495,22 @@ public class ConcurrentDOMDataBrokerTest {
                 LogicalDatastoreType.OPERATIONAL, operationalDomStore, LogicalDatastoreType.CONFIGURATION,
                 configDomStore), futureExecutor) {
             @Override
-            public CheckedFuture<Void, TransactionCommitFailedException> submit(DOMDataWriteTransaction transaction,
+            @SuppressWarnings("checkstyle:hiddenField")
+            public FluentFuture<? extends CommitInfo> commit(DOMDataTreeWriteTransaction writeTx,
                     Collection<DOMStoreThreePhaseCommitCohort> cohorts) {
                 commitCohorts.addAll(cohorts);
                 latch.countDown();
-                return super.submit(transaction, cohorts);
+                return super.commit(writeTx, cohorts);
             }
         }) {
-            DOMDataReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
+            DOMDataTreeReadWriteTransaction domDataReadWriteTransaction = dataBroker.newReadWriteTransaction();
 
             domDataReadWriteTransaction.put(LogicalDatastoreType.OPERATIONAL, YangInstanceIdentifier.EMPTY,
                     mock(NormalizedNode.class));
             domDataReadWriteTransaction.merge(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.EMPTY,
                     mock(NormalizedNode.class));
 
-            domDataReadWriteTransaction.submit();
+            domDataReadWriteTransaction.commit();
 
             assertTrue(latch.await(10, TimeUnit.SECONDS));
 
@@ -522,7 +525,7 @@ public class ConcurrentDOMDataBrokerTest {
                 LogicalDatastoreType.OPERATIONAL, domStore, LogicalDatastoreType.CONFIGURATION, domStore),
                 futureExecutor)) {
 
-            dataBroker.createTransactionChain(mock(TransactionChainListener.class));
+            dataBroker.createTransactionChain(mock(DOMTransactionChainListener.class));
 
             verify(domStore, times(2)).createTransactionChain();
         }
@@ -543,9 +546,9 @@ public class ConcurrentDOMDataBrokerTest {
             doReturn(operationalTransaction).when(mockChain).newWriteOnlyTransaction();
 
             DOMTransactionChain transactionChain = dataBroker.createTransactionChain(
-                    mock(TransactionChainListener.class));
+                    mock(DOMTransactionChainListener.class));
 
-            DOMDataWriteTransaction domDataWriteTransaction = transactionChain.newWriteOnlyTransaction();
+            DOMDataTreeWriteTransaction domDataWriteTransaction = transactionChain.newWriteOnlyTransaction();
 
             verify(mockChain, never()).newWriteOnlyTransaction();
 
@@ -561,15 +564,13 @@ public class ConcurrentDOMDataBrokerTest {
                 LogicalDatastoreType.OPERATIONAL, domStore, LogicalDatastoreType.CONFIGURATION, domStore),
                 futureExecutor)) {
 
-            CheckedFuture<Void, TransactionCommitFailedException> submit1 =
-                    dataBroker.newWriteOnlyTransaction().submit();
+            FluentFuture<? extends CommitInfo> submit1 = dataBroker.newWriteOnlyTransaction().commit();
 
             assertNotNull(submit1);
 
             submit1.get();
 
-            CheckedFuture<Void, TransactionCommitFailedException> submit2 =
-                    dataBroker.newReadWriteTransaction().submit();
+            FluentFuture<? extends CommitInfo> submit2 = dataBroker.newReadWriteTransaction().commit();
 
             assertNotNull(submit2);
 
@@ -585,12 +586,11 @@ public class ConcurrentDOMDataBrokerTest {
                 LogicalDatastoreType.OPERATIONAL, mockOperStore,
                 LogicalDatastoreType.CONFIGURATION, mockConfigStore), futureExecutor)) {
 
-            Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> supportedExtensions =
-                    dataBroker.getSupportedExtensions();
-            assertNotNull(supportedExtensions.get(DOMDataTreeChangeService.class));
+            ClassToInstanceMap<DOMDataBrokerExtension> supportedExtensions = dataBroker.getExtensions();
+            assertNotNull(supportedExtensions.getInstance(DOMDataTreeChangeService.class));
 
-            DOMDataTreeCommitCohortRegistry cohortRegistry =
-                    (DOMDataTreeCommitCohortRegistry) supportedExtensions.get(DOMDataTreeCommitCohortRegistry.class);
+            DOMDataTreeCommitCohortRegistry cohortRegistry = supportedExtensions.getInstance(
+                DOMDataTreeCommitCohortRegistry.class);
             assertNotNull(cohortRegistry);
 
             DOMDataTreeCommitCohort mockCohort = mock(DOMDataTreeCommitCohort.class);