| /* |
| * |
| * 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.protocol.v0_8; |
| |
| import java.util.UUID; |
| |
| import org.apache.qpid.server.QpidException; |
| import org.apache.qpid.server.protocol.v0_8.transport.BasicContentHeaderProperties; |
| import org.apache.qpid.server.protocol.v0_8.transport.ContentHeaderBody; |
| import org.apache.qpid.server.protocol.v0_8.transport.MessagePublishInfo; |
| import org.apache.qpid.server.message.EnqueueableMessage; |
| import org.apache.qpid.server.message.MessageReference; |
| import org.apache.qpid.server.store.MessageCounter; |
| import org.apache.qpid.server.store.MessageDurability; |
| import org.apache.qpid.server.store.StoredMessage; |
| import org.apache.qpid.server.store.TestMemoryMessageStore; |
| import org.apache.qpid.server.store.Transaction; |
| import org.apache.qpid.server.store.TransactionLogResource; |
| import org.apache.qpid.test.utils.QpidTestCase; |
| |
| /** |
| * Tests that reference counting works correctly with AMQMessage and the message store |
| */ |
| public class ReferenceCountingTest extends QpidTestCase |
| { |
| private TestMemoryMessageStore _store; |
| |
| |
| @Override |
| protected void setUp() throws Exception |
| { |
| super.setUp(); |
| _store = new TestMemoryMessageStore(); |
| } |
| |
| /** |
| * Check that when the reference count is decremented the message removes itself from the store |
| */ |
| public void testMessageGetsRemoved() throws QpidException |
| { |
| ContentHeaderBody chb = createPersistentContentHeader(); |
| |
| MessagePublishInfo info = new MessagePublishInfo(null, false, false, null); |
| |
| final MessageMetaData mmd = new MessageMetaData(info, chb); |
| |
| StoredMessage storedMessage = _store.addMessage(mmd).allContentAdded(); |
| Transaction txn = _store.newTransaction(); |
| txn.enqueueMessage(createTransactionLogResource("dummyQ"), createEnqueueableMessage(storedMessage)); |
| txn.commitTran(); |
| AMQMessage message = new AMQMessage(storedMessage); |
| |
| MessageReference ref = message.newReference(); |
| |
| assertEquals(1, getStoreMessageCount()); |
| |
| ref.release(); |
| |
| assertEquals(0, getStoreMessageCount()); |
| } |
| |
| private int getStoreMessageCount() |
| { |
| MessageCounter counter = new MessageCounter(); |
| _store.newMessageStoreReader().visitMessages(counter); |
| return counter.getCount(); |
| } |
| |
| private ContentHeaderBody createPersistentContentHeader() |
| { |
| BasicContentHeaderProperties bchp = new BasicContentHeaderProperties(); |
| bchp.setDeliveryMode((byte)2); |
| ContentHeaderBody chb = new ContentHeaderBody(bchp); |
| return chb; |
| } |
| |
| public void testMessageRemains() throws QpidException |
| { |
| |
| MessagePublishInfo info = new MessagePublishInfo(null, false, false, null); |
| |
| final ContentHeaderBody chb = createPersistentContentHeader(); |
| |
| final MessageMetaData mmd = new MessageMetaData(info, chb); |
| |
| StoredMessage storedMessage = _store.addMessage(mmd).allContentAdded(); |
| Transaction txn = _store.newTransaction(); |
| txn.enqueueMessage(createTransactionLogResource("dummyQ"), createEnqueueableMessage(storedMessage)); |
| txn.commitTran(); |
| AMQMessage message = new AMQMessage(storedMessage); |
| |
| |
| MessageReference ref = message.newReference(); |
| |
| assertEquals(1, getStoreMessageCount()); |
| MessageReference ref2 = message.newReference(); |
| ref.release(); |
| assertEquals(1, getStoreMessageCount()); |
| } |
| |
| private TransactionLogResource createTransactionLogResource(final String queueName) |
| { |
| return new TransactionLogResource() |
| { |
| @Override |
| public String getName() |
| { |
| return queueName; |
| } |
| |
| @Override |
| public UUID getId() |
| { |
| return UUID.nameUUIDFromBytes(queueName.getBytes()); |
| } |
| |
| @Override |
| public MessageDurability getMessageDurability() |
| { |
| return MessageDurability.DEFAULT; |
| } |
| }; |
| } |
| |
| private EnqueueableMessage createEnqueueableMessage(final StoredMessage storedMessage) |
| { |
| return new EnqueueableMessage() |
| { |
| @Override |
| public long getMessageNumber() |
| { |
| return storedMessage.getMessageNumber(); |
| } |
| |
| @Override |
| public boolean isPersistent() |
| { |
| return true; |
| } |
| |
| @Override |
| public StoredMessage getStoredMessage() |
| { |
| return storedMessage; |
| } |
| }; |
| } |
| |
| public static junit.framework.Test suite() |
| { |
| return new junit.framework.TestSuite(ReferenceCountingTest.class); |
| } |
| } |