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*
* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
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*/
package org.apache.qpid.server.txn;
import org.apache.qpid.server.message.MessageInstance;
import org.apache.qpid.server.message.ServerMessage;
import org.apache.qpid.server.queue.BaseQueue;
import org.apache.qpid.server.queue.MockMessageInstance;
import org.apache.qpid.server.store.MessageStore;
import org.apache.qpid.server.store.TransactionLogResource;
import org.apache.qpid.server.txn.MockStoreTransaction.TransactionState;
import org.apache.qpid.test.utils.QpidTestCase;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
/**
* A unit test ensuring that AutoCommitTransaction creates a separate transaction for
* each dequeue/enqueue operation that involves enlistable messages. Verifies
* that the transaction is properly committed (or rolled-back in the case of exception),
* and that post transaction actions are correctly fired.
*
*/
public class AutoCommitTransactionTest extends QpidTestCase
{
private ServerTransaction _transaction = null; // Class under test
private MessageStore _transactionLog;
private BaseQueue _queue;
private List<BaseQueue> _queues;
private Collection<MessageInstance> _queueEntries;
private ServerMessage _message;
private MockAction _action;
private MockStoreTransaction _storeTransaction;
@Override
protected void setUp() throws Exception
{
super.setUp();
_storeTransaction = createTestStoreTransaction(false);
_transactionLog = MockStoreTransaction.createTestTransactionLog(_storeTransaction);
_action = new MockAction();
_transaction = new AutoCommitTransaction(_transactionLog);
}
/**
* Tests the enqueue of a non persistent message to a single non durable queue.
* Asserts that a store transaction has not been started and commit action fired.
*/
public void testEnqueueToNonDurableQueueOfNonPersistentMessage() throws Exception
{
_message = createTestMessage(false);
_queue = createTestAMQQueue(false);
_transaction.enqueue(_queue, _message, _action);
assertEquals("Enqueue of non-persistent message must not cause message to be enqueued", 0, _storeTransaction.getNumberOfEnqueuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the enqueue of a persistent message to a durable queue.
* Asserts that a store transaction has been committed and commit action fired.
*/
public void testEnqueueToDurableQueueOfPersistentMessage() throws Exception
{
_message = createTestMessage(true);
_queue = createTestAMQQueue(true);
_transaction.enqueue(_queue, _message, _action);
assertEquals("Enqueue of persistent message to durable queue must cause message to be enqueued", 1, _storeTransaction.getNumberOfEnqueuedMessages());
assertEquals("Unexpected transaction state", TransactionState.COMMITTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the case where the store operation throws an exception.
* Asserts that the transaction is aborted and rollback action is fired.
*/
public void testStoreEnqueueCausesException() throws Exception
{
_message = createTestMessage(true);
_queue = createTestAMQQueue(true);
_storeTransaction = createTestStoreTransaction(true);
_transactionLog = MockStoreTransaction.createTestTransactionLog(_storeTransaction);
_transaction = new AutoCommitTransaction(_transactionLog);
try
{
_transaction.enqueue(_queue, _message, _action);
fail("Exception not thrown");
}
catch (RuntimeException re)
{
// PASS
}
assertEquals("Unexpected transaction state", TransactionState.ABORTED, _storeTransaction.getState());
assertTrue("Rollback action must be fired", _action.isRollbackActionFired());
assertFalse("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the enqueue of a non persistent message to a many non durable queues.
* Asserts that a store transaction has not been started and post commit action fired.
*/
public void testEnqueueToManyNonDurableQueuesOfNonPersistentMessage() throws Exception
{
_message = createTestMessage(false);
_queues = createTestBaseQueues(new boolean[] {false, false, false});
_transaction.enqueue(_queues, _message, _action);
assertEquals("Enqueue of non-persistent message must not cause message to be enqueued", 0, _storeTransaction.getNumberOfEnqueuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the enqueue of a persistent message to a many non durable queues.
* Asserts that a store transaction has not been started and post commit action
* fired.
*/
public void testEnqueueToManyNonDurableQueuesOfPersistentMessage() throws Exception
{
_message = createTestMessage(true);
_queues = createTestBaseQueues(new boolean[] {false, false, false});
_transaction.enqueue(_queues, _message, _action);
assertEquals("Enqueue of persistent message to non-durable queues must not cause message to be enqueued", 0, _storeTransaction.getNumberOfEnqueuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the enqueue of a persistent message to many queues, some durable others not.
* Asserts that a store transaction has been committed and post commit action fired.
*/
public void testEnqueueToDurableAndNonDurableQueuesOfPersistentMessage() throws Exception
{
_message = createTestMessage(true);
_queues = createTestBaseQueues(new boolean[] {false, true, false, true});
_transaction.enqueue(_queues, _message, _action);
assertEquals("Enqueue of persistent message to durable/non-durable queues must cause messages to be enqueued", 2, _storeTransaction.getNumberOfEnqueuedMessages());
assertEquals("Unexpected transaction state", TransactionState.COMMITTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the case where the store operation throws an exception.
* Asserts that the transaction is aborted and rollback action fired.
*/
public void testStoreEnqueuesCausesExceptions() throws Exception
{
_message = createTestMessage(true);
_queues = createTestBaseQueues(new boolean[] {true, true});
_storeTransaction = createTestStoreTransaction(true);
_transactionLog = MockStoreTransaction.createTestTransactionLog(_storeTransaction);
_transaction = new AutoCommitTransaction(_transactionLog);
try
{
_transaction.enqueue(_queues, _message, _action);
fail("Exception not thrown");
}
catch (RuntimeException re)
{
// PASS
}
assertEquals("Unexpected transaction state", TransactionState.ABORTED, _storeTransaction.getState());
assertTrue("Rollback action must be fired", _action.isRollbackActionFired());
assertFalse("Post commit action must not be fired", _action.isPostCommitActionFired());
}
/**
* Tests the dequeue of a non persistent message from a single non durable queue.
* Asserts that a store transaction has not been started and post commit action
* fired.
*/
public void testDequeueFromNonDurableQueueOfNonPersistentMessage() throws Exception
{
_message = createTestMessage(false);
_queue = createTestAMQQueue(false);
_transaction.dequeue(_queue, _message, _action);
assertEquals("Dequeue of non-persistent message must not cause message to be dequeued", 0, _storeTransaction.getNumberOfDequeuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the dequeue of a persistent message from a single non durable queue.
* Asserts that a store transaction has not been started and post commit
* action fired.
*/
public void testDequeueFromDurableQueueOfPersistentMessage() throws Exception
{
_message = createTestMessage(true);
_queue = createTestAMQQueue(true);
_transaction.dequeue(_queue, _message, _action);
assertEquals("Dequeue of persistent message to durable queue must cause message to be dequeued",1, _storeTransaction.getNumberOfDequeuedMessages());
assertEquals("Unexpected transaction state", TransactionState.COMMITTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the case where the store operation throws an exception.
* Asserts that the transaction is aborted and post rollback action
* fired.
*/
public void testStoreDequeueCausesException() throws Exception
{
_message = createTestMessage(true);
_queue = createTestAMQQueue(true);
_storeTransaction = createTestStoreTransaction(true);
_transactionLog = MockStoreTransaction.createTestTransactionLog(_storeTransaction);
_transaction = new AutoCommitTransaction(_transactionLog);
try
{
_transaction.dequeue(_queue, _message, _action);
fail("Exception not thrown");
}
catch (RuntimeException re)
{
// PASS
}
assertEquals("Unexpected transaction state", TransactionState.ABORTED, _storeTransaction.getState());
assertTrue("Rollback action must be fired", _action.isRollbackActionFired());
assertFalse("Post commit action must not be fired", _action.isPostCommitActionFired());
}
/**
* Tests the dequeue of a non persistent message from many non durable queues.
* Asserts that a store transaction has not been started and post commit action
* fired.
*/
public void testDequeueFromManyNonDurableQueuesOfNonPersistentMessage() throws Exception
{
_queueEntries = createTestQueueEntries(new boolean[] {false, false, false}, new boolean[] {false, false, false});
_transaction.dequeue(_queueEntries, _action);
assertEquals("Dequeue of non-persistent messages must not cause message to be dequeued", 0, _storeTransaction.getNumberOfDequeuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertEquals("Rollback action must not be fired", false, _action.isRollbackActionFired());
assertEquals("Post commit action must be fired", true, _action.isPostCommitActionFired());
}
/**
* Tests the dequeue of a persistent message from a many non durable queues.
* Asserts that a store transaction has not been started and post commit action
* fired.
*/
public void testDequeueFromManyNonDurableQueuesOfPersistentMessage() throws Exception
{
_queueEntries = createTestQueueEntries(new boolean[] {false, false, false}, new boolean[] {true, true, true});
_transaction.dequeue(_queueEntries, _action);
assertEquals("Dequeue of persistent message from non-durable queues must not cause message to be enqueued", 0, _storeTransaction.getNumberOfDequeuedMessages());
assertEquals("Unexpected transaction state", TransactionState.NOT_STARTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the dequeue of a persistent message from many queues, some durable others not.
* Asserts that a store transaction has not been started and post commit action fired.
*/
public void testDequeueFromDurableAndNonDurableQueuesOfPersistentMessage() throws Exception
{
// A transaction will exist owing to the 1st and 3rd.
_queueEntries = createTestQueueEntries(new boolean[] {true, false, true, true}, new boolean[] {true, true, true, false});
_transaction.dequeue(_queueEntries, _action);
assertEquals("Dequeue of persistent messages from durable/non-durable queues must cause messages to be dequeued", 2, _storeTransaction.getNumberOfDequeuedMessages());
assertEquals("Unexpected transaction state", TransactionState.COMMITTED, _storeTransaction.getState());
assertFalse("Rollback action must not be fired", _action.isRollbackActionFired());
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
}
/**
* Tests the case where the store operation throws an exception.
* Asserts that the transaction is aborted and post rollback action fired.
*/
public void testStoreDequeuesCauseExceptions() throws Exception
{
// Transactions will exist owing to the 1st and 3rd queue entries in the collection
_queueEntries = createTestQueueEntries(new boolean[] {true}, new boolean[] {true});
_storeTransaction = createTestStoreTransaction(true);
_transactionLog = MockStoreTransaction.createTestTransactionLog(_storeTransaction);
_transaction = new AutoCommitTransaction(_transactionLog);
try
{
_transaction.dequeue(_queueEntries, _action);
fail("Exception not thrown");
}
catch (RuntimeException re)
{
// PASS
}
assertEquals("Unexpected transaction state", TransactionState.ABORTED, _storeTransaction.getState());
assertTrue("Rollback action must be fired", _action.isRollbackActionFired());
assertFalse("Post commit action must not be fired", _action.isPostCommitActionFired());
}
/**
* Tests the add of a post-commit action. Since AutoCommitTransactions
* have no long lived transactions, the post commit action is fired immediately.
*/
public void testPostCommitActionFiredImmediately() throws Exception
{
_transaction.addPostTransactionAction(_action);
assertTrue("Post commit action must be fired", _action.isPostCommitActionFired());
assertFalse("Rollback action must be fired", _action.isRollbackActionFired());
}
private Collection<MessageInstance> createTestQueueEntries(boolean[] queueDurableFlags, boolean[] messagePersistentFlags)
{
Collection<MessageInstance> queueEntries = new ArrayList<MessageInstance>();
assertTrue("Boolean arrays must be the same length", queueDurableFlags.length == messagePersistentFlags.length);
for(int i = 0; i < queueDurableFlags.length; i++)
{
final BaseQueue queue = createTestAMQQueue(queueDurableFlags[i]);
final ServerMessage message = createTestMessage(messagePersistentFlags[i]);
queueEntries.add(new MockMessageInstance()
{
@Override
public ServerMessage getMessage()
{
return message;
}
@Override
public TransactionLogResource getOwningResource()
{
return queue;
}
});
}
return queueEntries;
}
private MockStoreTransaction createTestStoreTransaction(boolean throwException)
{
return new MockStoreTransaction(throwException);
}
private List<BaseQueue> createTestBaseQueues(boolean[] durableFlags)
{
List<BaseQueue> queues = new ArrayList<BaseQueue>();
for (boolean b: durableFlags)
{
queues.add(createTestAMQQueue(b));
}
return queues;
}
private BaseQueue createTestAMQQueue(final boolean durable)
{
BaseQueue queue = mock(BaseQueue.class);
when(queue.isDurable()).thenReturn(durable);
return queue;
}
private ServerMessage createTestMessage(final boolean persistent)
{
return new MockServerMessage(persistent);
}
}