| /* |
| * |
| * 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.store.berkeleydb.tuple; |
| |
| import java.util.UUID; |
| |
| import com.sleepycat.bind.tuple.TupleBinding; |
| import com.sleepycat.bind.tuple.TupleInput; |
| import com.sleepycat.bind.tuple.TupleOutput; |
| import com.sleepycat.je.DatabaseEntry; |
| |
| import org.apache.qpid.server.message.EnqueueableMessage; |
| import org.apache.qpid.server.store.MessageDurability; |
| import org.apache.qpid.server.store.MessageEnqueueRecord; |
| import org.apache.qpid.server.store.StoredMessage; |
| import org.apache.qpid.server.store.Transaction; |
| import org.apache.qpid.server.store.TransactionLogResource; |
| import org.apache.qpid.server.store.berkeleydb.AbstractBDBMessageStore; |
| import org.apache.qpid.server.store.berkeleydb.entry.PreparedTransaction; |
| import org.apache.qpid.server.util.CachingUUIDFactory; |
| |
| public class PreparedTransactionBinding |
| { |
| private PreparedTransactionBinding() |
| { |
| } |
| |
| public static PreparedTransaction entryToObject(final CachingUUIDFactory uuidFactory, final DatabaseEntry value) |
| { |
| TupleInput input = TupleBinding.entryToInput(value); |
| Transaction.EnqueueRecord[] enqueues = readEnqueueRecords(uuidFactory, input); |
| Transaction.DequeueRecord[] dequeues = readDequeueRecords(uuidFactory, input); |
| return new PreparedTransaction(enqueues, dequeues); |
| } |
| |
| private static Transaction.EnqueueRecord[] readEnqueueRecords(final CachingUUIDFactory uuidFactory, TupleInput input) |
| { |
| Transaction.EnqueueRecord[] records = new Transaction.EnqueueRecord[input.readInt()]; |
| for(int i = 0; i < records.length; i++) |
| { |
| UUID queueId = uuidFactory.createUuidFromBits(input.readLong(), input.readLong()); |
| records[i] = new EnqueueRecordImpl(queueId, input.readLong()); |
| } |
| return records; |
| } |
| |
| private static Transaction.DequeueRecord[] readDequeueRecords(final CachingUUIDFactory uuidFactory, TupleInput input) |
| { |
| Transaction.DequeueRecord[] records = new Transaction.DequeueRecord[input.readInt()]; |
| for(int i = 0; i < records.length; i++) |
| { |
| UUID queueId = uuidFactory.createUuidFromBits(input.readLong(), input.readLong()); |
| records[i] = new DequeueRecordImpl(queueId, input.readLong()); |
| } |
| return records; |
| } |
| |
| public static void objectToEntry(final PreparedTransaction preparedTransaction, final DatabaseEntry value) |
| { |
| TupleOutput tupleOutput = new TupleOutput(); |
| writeRecords(preparedTransaction.getEnqueues(), tupleOutput); |
| writeRecords(preparedTransaction.getDequeues(), tupleOutput); |
| TupleBinding.outputToEntry(tupleOutput, value); |
| } |
| |
| private static void writeRecords(Transaction.EnqueueRecord[] records, TupleOutput output) |
| { |
| if(records == null) |
| { |
| output.writeInt(0); |
| } |
| else |
| { |
| output.writeInt(records.length); |
| for(Transaction.EnqueueRecord record : records) |
| { |
| UUID id = record.getResource().getId(); |
| output.writeLong(id.getMostSignificantBits()); |
| output.writeLong(id.getLeastSignificantBits()); |
| output.writeLong(record.getMessage().getMessageNumber()); |
| } |
| } |
| } |
| |
| private static void writeRecords(Transaction.DequeueRecord[] records, TupleOutput output) |
| { |
| if(records == null) |
| { |
| output.writeInt(0); |
| } |
| else |
| { |
| output.writeInt(records.length); |
| for(Transaction.DequeueRecord record : records) |
| { |
| UUID id = record.getEnqueueRecord().getQueueId(); |
| output.writeLong(id.getMostSignificantBits()); |
| output.writeLong(id.getLeastSignificantBits()); |
| output.writeLong(record.getEnqueueRecord().getMessageNumber()); |
| } |
| } |
| } |
| |
| private static class EnqueueRecordImpl implements Transaction.EnqueueRecord, TransactionLogResource, EnqueueableMessage |
| { |
| |
| private long _messageNumber; |
| private UUID _queueId; |
| |
| EnqueueRecordImpl(UUID queueId, long messageNumber) |
| { |
| _messageNumber = messageNumber; |
| _queueId = queueId; |
| } |
| |
| public TransactionLogResource getResource() |
| { |
| return this; |
| } |
| |
| public EnqueueableMessage getMessage() |
| { |
| return this; |
| } |
| |
| public long getMessageNumber() |
| { |
| return _messageNumber; |
| } |
| |
| public boolean isPersistent() |
| { |
| return true; |
| } |
| |
| public StoredMessage<?> getStoredMessage() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public String getName() |
| { |
| return _queueId.toString(); |
| } |
| |
| @Override |
| public UUID getId() |
| { |
| return _queueId; |
| } |
| |
| @Override |
| public MessageDurability getMessageDurability() |
| { |
| return MessageDurability.DEFAULT; |
| } |
| } |
| |
| private static class DequeueRecordImpl implements Transaction.DequeueRecord |
| { |
| |
| private final AbstractBDBMessageStore.BDBEnqueueRecord _record; |
| |
| DequeueRecordImpl(final UUID queueId, final long messageNumber) |
| { |
| _record = new AbstractBDBMessageStore.BDBEnqueueRecord(queueId, messageNumber); |
| } |
| |
| @Override |
| public MessageEnqueueRecord getEnqueueRecord() |
| { |
| return _record; |
| } |
| } |
| } |