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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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.
*
*/
package org.apache.qpid.server.queue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.apache.qpid.server.message.MessageInstance;
import org.apache.qpid.server.message.MessageReference;
import org.apache.qpid.server.message.ServerMessage;
import org.apache.qpid.server.model.Queue;
import org.apache.qpid.server.store.StoredMessage;
import org.apache.qpid.server.util.Action;
import org.apache.qpid.server.util.BrokerTestHelper;
import org.apache.qpid.server.virtualhost.VirtualHostImpl;
import org.apache.qpid.test.utils.QpidTestCase;
public class QueueMessageRecoveryTest extends QpidTestCase
{
VirtualHostImpl<?, ?, ?> _vhost;
@Override
public void setUp() throws Exception
{
super.setUp();
_vhost = BrokerTestHelper.createVirtualHost("host");
}
public void testSimpleRecovery() throws Exception
{
// Simple deterministic test to prove that interleaved recovery and new publishing onto a queue is correctly
// handled
final List<ServerMessage<?>> messageList = new ArrayList<>();
TestQueue queue = new TestQueue(Collections.singletonMap(Queue.NAME, (Object)"test"), _vhost, messageList);
queue.open();
queue.recover(createMockMessage(0));
queue.enqueue(createMockMessage(4), null);
queue.enqueue(createMockMessage(5), null);
queue.recover(createMockMessage(1));
queue.recover(createMockMessage(2));
queue.enqueue(createMockMessage(6), null);
queue.recover(createMockMessage(3));
assertEquals(4, messageList.size());
for(int i = 0; i < 4; i++)
{
assertEquals((long)i, messageList.get(i).getMessageNumber());
}
queue.completeRecovery();
queue.enqueue(createMockMessage(7), null);
assertEquals(8, messageList.size());
for(int i = 0; i < 8; i++)
{
assertEquals((long)i, messageList.get(i).getMessageNumber());
}
}
public void testMultiThreadedRecovery() throws Exception
{
// Non deterministic test with separate publishing and recovery threads
performMultiThreadedRecovery(5000);
}
public void testRepeatedMultiThreadedRecovery() throws Exception
{
// Repeated non deterministic test with separate publishing and recovery threads(but with fewer messages being
// published/recovered
for(int i = 0; i < 50; i++)
{
performMultiThreadedRecovery(10);
}
}
private void performMultiThreadedRecovery(final int size) throws Exception
{
final List<ServerMessage<?>> messageList = new ArrayList<>();
final TestQueue queue = new TestQueue(Collections.singletonMap(Queue.NAME, (Object) "test"), _vhost, messageList);
queue.open();
Thread recoveryThread = new Thread(new Runnable()
{
@Override
public void run()
{
for(int i = 0; i < size; i++)
{
queue.recover(createMockMessage(i));
}
queue.completeRecovery();
}
}, "recovery thread");
Thread publishingThread = new Thread(new Runnable()
{
@Override
public void run()
{
for(int i = 0; i < size; i++)
{
queue.enqueue(createMockMessage(size + i), null);
}
}
}, "publishing thread");
recoveryThread.start();
publishingThread.start();
recoveryThread.join(10000);
publishingThread.join(10000);
assertEquals(size*2, messageList.size());
for(int i = 0; i < (size*2); i++)
{
assertEquals((long)i, messageList.get(i).getMessageNumber());
}
}
private ServerMessage createMockMessage(final long i)
{
ServerMessage msg = mock(ServerMessage.class);
when(msg.getMessageNumber()).thenReturn(i);
MessageReference ref = mock(MessageReference.class);
when(ref.getMessage()).thenReturn(msg);
when(msg.newReference()).thenReturn(ref);
when(msg.getStoredMessage()).thenReturn(mock(StoredMessage.class));
return msg;
}
private class TestQueue extends AbstractQueue<TestQueue>
{
private final List<ServerMessage<?>> _messageList;
protected TestQueue(final Map<String, Object> attributes,
final VirtualHostImpl virtualHost,
final List<ServerMessage<?>> messageList)
{
super(attributes, virtualHost);
_messageList = messageList;
}
@Override
QueueEntryList getEntries()
{
return null;
}
@Override
protected void doEnqueue(final ServerMessage message, final Action<? super MessageInstance> action)
{
synchronized(_messageList)
{
_messageList.add(message);
}
}
}
}
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