src/main/csharp/NetTxSession.cs

/*
 * 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.
 */

using System;
using System.Transactions;
using Apache.NMS;
using Apache.NMS.ActiveMQ.Commands;

namespace Apache.NMS.ActiveMQ
{
    public class NetTxSession : Session, INetTxSession
    {
        public NetTxSession(Connection connection, SessionId id)
            : base(connection, id, AcknowledgementMode.AutoAcknowledge)
        {
            TransactionContext.InitializeDtcTxContext();
        }

        /// <summary>
        /// Reports Transacted whenever there is an Ambient Transaction or the internal
        /// TransactionContext is still involed in a .NET Transaction beyond the lifetime
        /// of an ambient transaction (can happen during a scoped transaction disposing
        /// without Complete being called and a Rollback is in progress.)
        /// </summary>
        public override bool IsTransacted
        {
            get { return Transaction.Current != null || TransactionContext.InNetTransaction; }
        }

        public override bool IsAutoAcknowledge
        {
            // When not in a .NET Transaction we assume Auto Ack.
            get { return true; }
        }

        internal override void DoRollback()
        {
            // Only the Transaction Manager can do this when in a .NET Transaction.
            throw new TransactionInProgressException("Cannot Rollback() inside an NetTxSession");
        }

        internal override void DoCommit()
        {
            // Only the Transaction Manager can do this when in a .NET Transaction.
            throw new TransactionInProgressException("Cannot Commit() inside an NetTxSession");
        }

        internal override void DoStartTransaction()
        {
            if(!TransactionContext.InNetTransaction)
            {
                if(Transaction.Current != null)
                {
                    Tracer.Debug("NetTxSession detected Ambient Transaction, start new TX with broker");

                    // Start a new .NET style transaction, this could be distributed
                    // or it could just be a Local transaction that could become
                    // distributed later.
                    TransactionContext.Begin(Transaction.Current);
                }
            }
        }

    }
}