﻿#region license
// Copyright (c) 2005 - 2007 Ayende Rahien (ayende@ayende.com)
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//     * Neither the name of Ayende Rahien nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion


using System.Data;

namespace Rhino.Commons
{
	public static partial class With
	{
		public static void Transaction(IsolationLevel level, Proc transactional)
		{
			Transaction(level, transactional, UnitOfWorkNestingOptions.ReturnExistingOrCreateUnitOfWork);
		}

		public static void Transaction(IsolationLevel level, Proc transactional, UnitOfWorkNestingOptions nestingOptions)
		{
			using (UnitOfWork.Start(nestingOptions))
			{
				// If we are already in a transaction, don't start a new one
				if (UnitOfWork.Current.IsInActiveTransaction)
				{
					transactional();
				}
				else
				{
					RhinoTransaction tx = UnitOfWork.Current.BeginTransaction(level);
					try
					{
						transactional();
						tx.Commit();
					}
					catch
					{
						tx.Rollback();
						throw;
					}
					finally
					{
						tx.Dispose();
					}
				}
			}
		}

		public static void Transaction(Proc transactional)
		{
			Transaction(IsolationLevel.ReadCommitted, transactional);
		}
	}
}