using System;
using System.Collections.Generic;
using System.Text;

using System.Messaging;

namespace Utils
{
	public class MsgQueueHandler
	{
		public MsgQueueHandler()
		{
		}

		#region Instance Variables

		#endregion

		#region Properties

		#endregion

		#region Initialize and Shutdown methods

		#endregion

		#region Methods

		/// <summary>
		/// Message Object를 만든다.
		/// </summary>
		/// <param name="strMsgText">Message 본문</param>
		/// <param name="strMsgLabel">Message Label</param>
		/// <returns>Message Object</returns>
		#region // Message SetMessageObject(string strMsgText, string strMsgLabel) //
		private Message SetMessageObject(string strMsgText, string strMsgLabel)
		{
			Message msg = new Message(strMsgText);
			msg.Label = strMsgLabel;
			msg.Formatter = new XmlMessageFormatter(new Type[] { typeof(String) });
			
			return msg;
		} 
		#endregion

		/// <summary>
		/// Message를 트렌젝션을 이용하여 Queue에 보낸다.
		/// </summary>
		/// <param name="strMsgText">보낼 Message</param>
		/// <param name="strMsgLabel">보낸 Message Label</param>
		/// <param name="strQueueName">Queue의 이름</param>
		/// <returns>성공 여부</returns>
		#region // bool SendMsgQueueTran(string strMsgText, string strMsgLabel, string strQueueName) //
		public bool SendMsgQueueTran(string strMsgText, string strMsgLabel, string strQueueName)
		{
			bool returnBoolen = false;

			MessageQueueTransaction mqTran = new MessageQueueTransaction();

			try
			{
				mqTran.Begin();

				using (MessageQueue mq = new MessageQueue(strQueueName))
				{
					using (Message msg = SetMessageObject(strMsgText, strMsgLabel))
					{
						string strData = (string)msg.Body;

						mq.Send(strData, msg.Label, mqTran);

						returnBoolen = true;
					}
				}
			}
			catch (System.Threading.ThreadAbortException)
			{
				//쓰래드 중단 오류는 다시 작업하기 위해서 큐를 복원한다. 
				mqTran.Abort();
			}
			catch (Exception ex)
			{
				throw ex;
			}
			finally
			{
				if (mqTran.Status == MessageQueueTransactionStatus.Pending) mqTran.Commit();
				if (mqTran != null) mqTran.Dispose();
			}

			return returnBoolen;
		} 
		#endregion

		/// <summary>
		/// Message를 Queue에 보낸다.
		/// </summary>
		/// <param name="strMsgText">보낼 Message</param>
		/// <param name="strMsgLabel">보낸 Message Label</param>
		/// <param name="strQueueName">Queue의 이름</param>
		/// <returns>성공 여부</returns>
		#region // bool SendMsgQueue(string strMsgText, string strMsgLabel, string strQueueName) //
		public bool SendMsgQueue(string strMsgText, string strMsgLabel, string strQueueName)
		{
			bool returnBoolen = false;

			try
			{
				using (MessageQueue mq = new MessageQueue(strQueueName))
				{
					using (Message msg = SetMessageObject(strMsgText, strMsgLabel))
					{
						mq.Send(msg);

						returnBoolen = true;
					}
				}
			}
			catch (Exception ex)
			{
				throw ex;
			}

			return returnBoolen;
		}
		#endregion

		#endregion

		#region Event Handlers

		#endregion
	}
}