package org.opendaylight.controller.md.sal.dom.broker.impl;
-import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.ForwardingExecutorService;
-import com.google.common.util.concurrent.FutureCallback;
-import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import java.util.Collections;
-import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitDeadlockException;
import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStore;
import org.opendaylight.yangtools.util.concurrent.DeadlockDetectingListeningExecutorService;
import org.opendaylight.yangtools.util.concurrent.SpecialExecutors;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
}
}
- /**
- * Tests a simple DataChangeListener notification after a write.
- */
- @Test
- @SuppressWarnings("checkstyle:IllegalThrows")
- public void testDataChangeListener() throws Throwable {
-
- final NormalizedNode<?, ?> testNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
-
- TestDOMDataChangeListener dcListener = new TestDOMDataChangeListener();
-
- domBroker.registerDataChangeListener(OPERATIONAL, TestModel.TEST_PATH, dcListener, DataChangeScope.BASE);
-
- final DOMDataWriteTransaction writeTx = domBroker.newWriteOnlyTransaction();
- assertNotNull(writeTx);
-
- writeTx.put(OPERATIONAL, TestModel.TEST_PATH, testNode);
-
- AtomicReference<Throwable> caughtEx = submitTxAsync(writeTx);
-
- dcListener.waitForChange();
-
- if (caughtEx.get() != null) {
- throw caughtEx.get();
- }
-
- NormalizedNode<?, ?> actualNode = dcListener.capturedChange.getCreatedData().get(TestModel.TEST_PATH);
- assertEquals("Created node", testNode, actualNode);
- }
-
- /**
- * Tests a DataChangeListener that does an async submit of a write Tx in its onDataChanged method.
- * This should succeed without deadlock.
- */
- @Test
- @SuppressWarnings("checkstyle:IllegalThrows")
- public void testDataChangeListenerDoingAsyncWriteTxSubmit() throws Throwable {
-
- final AtomicReference<Throwable> caughtCommitEx = new AtomicReference<>();
- final CountDownLatch commitCompletedLatch = new CountDownLatch(1);
-
- TestDOMDataChangeListener dcListener = new TestDOMDataChangeListener() {
- @Override
- public void onDataChanged(final AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
-
- DOMDataWriteTransaction writeTx = domBroker.newWriteOnlyTransaction();
- writeTx.put(OPERATIONAL, TestModel.TEST2_PATH, ImmutableNodes.containerNode(TestModel.TEST2_QNAME));
- Futures.addCallback(writeTx.submit(), new FutureCallback<Void>() {
- @Override
- public void onSuccess(final Void result) {
- commitCompletedLatch.countDown();
- }
-
- @Override
- public void onFailure(final Throwable throwable) {
- caughtCommitEx.set(throwable);
- commitCompletedLatch.countDown();
- }
- }, MoreExecutors.directExecutor());
-
- super.onDataChanged(change);
- }
- };
-
- domBroker.registerDataChangeListener(OPERATIONAL, TestModel.TEST_PATH, dcListener, DataChangeScope.BASE);
-
- final DOMDataWriteTransaction writeTx = domBroker.newWriteOnlyTransaction();
- assertNotNull(writeTx);
-
- writeTx.put(OPERATIONAL, TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
-
- AtomicReference<Throwable> caughtEx = submitTxAsync(writeTx);
-
- dcListener.waitForChange();
-
- if (caughtEx.get() != null) {
- throw caughtEx.get();
- }
-
- assertTrue("Commit Future was not invoked", commitCompletedLatch.await(5, TimeUnit.SECONDS));
-
- if (caughtCommitEx.get() != null) {
- throw caughtCommitEx.get();
- }
- }
-
- /**
- * Tests a DataChangeListener that does a blocking submit of a write Tx in its onDataChanged method.
- * This should throw an exception and not deadlock.
- */
- @Test(expected = TransactionCommitDeadlockException.class)
- @SuppressWarnings({"checkstyle:IllegalThrows", "checkstyle:IllegalCatch"})
- public void testDataChangeListenerDoingBlockingWriteTxSubmit() throws Throwable {
-
- final AtomicReference<Throwable> caughtCommitEx = new AtomicReference<>();
-
- TestDOMDataChangeListener dcListener = new TestDOMDataChangeListener() {
- @Override
- public void onDataChanged(final AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
- DOMDataWriteTransaction writeTx = domBroker.newWriteOnlyTransaction();
- writeTx.put(OPERATIONAL, TestModel.TEST2_PATH, ImmutableNodes.containerNode(TestModel.TEST2_QNAME));
- try {
- writeTx.commit().get();
- } catch (ExecutionException e) {
- caughtCommitEx.set(e.getCause());
- } catch (Exception e) {
- caughtCommitEx.set(e);
- } finally {
- super.onDataChanged(change);
- }
- }
- };
-
- domBroker.registerDataChangeListener(OPERATIONAL, TestModel.TEST_PATH, dcListener, DataChangeScope.BASE);
-
- final DOMDataWriteTransaction writeTx = domBroker.newWriteOnlyTransaction();
- assertNotNull(writeTx);
-
- writeTx.put(OPERATIONAL, TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
-
- AtomicReference<Throwable> caughtEx = submitTxAsync(writeTx);
-
- dcListener.waitForChange();
-
- if (caughtEx.get() != null) {
- throw caughtEx.get();
- }
-
- if (caughtCommitEx.get() != null) {
- throw caughtCommitEx.get();
- }
- }
-
@SuppressWarnings("checkstyle:IllegalCatch")
AtomicReference<Throwable> submitTxAsync(final DOMDataWriteTransaction writeTx) {
final AtomicReference<Throwable> caughtEx = new AtomicReference<>();
return caughtEx;
}
- static class TestDOMDataChangeListener implements DOMDataChangeListener {
-
- volatile AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> capturedChange;
- private final CountDownLatch latch = new CountDownLatch(1);
-
- @Override
- public void onDataChanged(final AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
- this.capturedChange = change;
- latch.countDown();
- }
-
- void waitForChange() throws InterruptedException {
- assertTrue("onDataChanged was not called", latch.await(5, TimeUnit.SECONDS));
- }
- }
static class CommitExecutorService extends ForwardingExecutorService {
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