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#region

/* -----------------------------------------------------------------------

 * <copyright file="MovedEventArgs.cs" company="GRNet">

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 * Copyright 2011-2012 GRNET S.A. All rights reserved.

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#endregion

using System.Diagnostics.Contracts;

using System.IO;

using System.Security.Permissions;

using System;

namespace Pithos.Core.Agents

{

    public delegate void MovedEventHandler(object sender, MovedEventArgs e);

    public class MovedEventArgs : FileSystemEventArgs

    {

        private readonly string _oldName;

        private readonly string _oldFullPath;

        public string OldFullPath

        {

            get

            {

                new FileIOPermission(FileIOPermissionAccess.Read, Path.GetPathRoot(_oldFullPath)).Demand();

                return _oldFullPath;

            }

        }

        public string OldName

        {

            get { return _oldName; }

        }

        public MovedEventArgs(string newDirectory, string newName, string oldDirectory, string oldName)

            : base(WatcherChangeTypes.Renamed, newDirectory, newName)

        {

            if (String.IsNullOrWhiteSpace(oldDirectory))

                throw new ArgumentNullException("oldDirectory");

            if (String.IsNullOrWhiteSpace(oldName))

                throw new ArgumentNullException("oldName");

            Contract.EndContractBlock();

            _oldName = oldName;

            _oldFullPath = Path.Combine(oldDirectory, oldName);

        }

    }

}