#region License

// Copyright (c) 2010, Jasper Yeh.
// 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 ClearCanvas Inc. 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;
using System.IO;
using ClearCanvas.Common;
using ClearCanvas.Desktop;

namespace Nullstack.ClearCanvasEx.ViewerEx.FileOps.Utilities
{
    [ExceptionPolicyFor(typeof (FileNotFoundExceptionPolicy))]
    [ExtensionOf(typeof (ExceptionPolicyExtensionPoint))]
    public class FileNotFoundExceptionPolicy : StandardExceptionPolicy<FileNotFoundException>
    {
        protected override void Handle(FileNotFoundException ex, IExceptionHandlingContext context)
        {
            context.ShowMessageBox(string.Format(SR.msgPathNotFound, ex.FileName));
        }
    }

    public abstract class StandardExceptionPolicy<T> : IExceptionPolicy
        where T : Exception
    {
        protected abstract void Handle(T ex, IExceptionHandlingContext context);

        void IExceptionPolicy.Handle(Exception e, IExceptionHandlingContext exceptionHandlingContext)
        {
            if (e is T)
            {
                Handle((T) e, exceptionHandlingContext);
            }
        }
    }
}