| /* |
| * |
| * 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.txn; |
| |
| import java.util.UUID; |
| |
| |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| import org.apache.qpid.server.message.EnqueueableMessage; |
| import org.apache.qpid.server.store.MessageEnqueueRecord; |
| import org.apache.qpid.server.store.MessageStore; |
| import org.apache.qpid.server.store.NullMessageStore; |
| import org.apache.qpid.server.store.Transaction; |
| import org.apache.qpid.server.store.TransactionLogResource; |
| import org.apache.qpid.server.util.ServerScopedRuntimeException; |
| |
| /** |
| * Mock implementation of a (Store) Transaction allow its state to be observed. |
| * Also provide a factory method to produce TestTransactionLog objects suitable |
| * for unit test use. |
| * |
| */ |
| class MockStoreTransaction implements Transaction |
| { |
| enum TransactionState {NOT_STARTED, STARTED, COMMITTED, ABORTED}; |
| |
| private TransactionState _state = TransactionState.NOT_STARTED; |
| |
| private int _numberOfEnqueuedMessages = 0; |
| private int _numberOfDequeuedMessages = 0; |
| private boolean _throwExceptionOnQueueOp; |
| |
| public MockStoreTransaction(boolean throwExceptionOnQueueOp) |
| { |
| _throwExceptionOnQueueOp = throwExceptionOnQueueOp; |
| } |
| |
| public void setState(TransactionState state) |
| { |
| _state = state; |
| } |
| |
| public TransactionState getState() |
| { |
| return _state; |
| } |
| |
| @Override |
| public MessageEnqueueRecord enqueueMessage(TransactionLogResource queue, EnqueueableMessage message) |
| { |
| if (_throwExceptionOnQueueOp) |
| { |
| |
| throw new ServerScopedRuntimeException("Mocked exception"); |
| } |
| |
| _numberOfEnqueuedMessages++; |
| return new MockEnqueueRecord(queue.getId(), message.getMessageNumber()); |
| } |
| |
| public int getNumberOfDequeuedMessages() |
| { |
| return _numberOfDequeuedMessages; |
| } |
| |
| public int getNumberOfEnqueuedMessages() |
| { |
| return _numberOfEnqueuedMessages; |
| } |
| |
| @Override |
| public void dequeueMessage(final MessageEnqueueRecord enqueueRecord) |
| { |
| if (_throwExceptionOnQueueOp) |
| { |
| throw new ServerScopedRuntimeException("Mocked exception"); |
| } |
| |
| _numberOfDequeuedMessages++; |
| } |
| |
| @Override |
| public void commitTran() |
| { |
| _state = TransactionState.COMMITTED; |
| } |
| |
| @Override |
| public <X> ListenableFuture<X> commitTranAsync(final X val) |
| { |
| return Futures.immediateFuture(val); |
| } |
| |
| @Override |
| public void abortTran() |
| { |
| _state = TransactionState.ABORTED; |
| } |
| |
| public void removeXid(long format, byte[] globalId, byte[] branchId) |
| { |
| } |
| |
| @Override |
| public void removeXid(final StoredXidRecord record) |
| { |
| |
| } |
| |
| @Override |
| public StoredXidRecord recordXid(long format, |
| byte[] globalId, |
| byte[] branchId, |
| EnqueueRecord[] enqueues, |
| DequeueRecord[] dequeues) |
| { |
| return null; |
| } |
| |
| public static MessageStore createTestTransactionLog(final MockStoreTransaction storeTransaction) |
| { |
| return new NullMessageStore() |
| { |
| @Override |
| public Transaction newTransaction() |
| { |
| storeTransaction.setState(TransactionState.STARTED); |
| return storeTransaction; |
| } |
| }; |
| } |
| |
| private static class MockEnqueueRecord implements MessageEnqueueRecord |
| { |
| private final UUID _queueId; |
| private final long _messageNumber; |
| |
| public MockEnqueueRecord(final UUID queueId, |
| final long messageNumber) |
| { |
| _queueId = queueId; |
| _messageNumber = messageNumber; |
| } |
| |
| @Override |
| public UUID getQueueId() |
| { |
| return _queueId; |
| } |
| |
| @Override |
| public long getMessageNumber() |
| { |
| return _messageNumber; |
| } |
| } |
| } |