#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using HeuristicLab.Core;
using System.IO;
using HeuristicLab.Persistence.Default.Xml;
using System.Runtime.Serialization.Formatters.Binary;

namespace HeuristicLab.Operators.MPISupport.BinaryTransport {
  /// <summary>
  /// A simple wrapper to transport items over the message passing interface
  /// </summary>
  [Serializable]
  public class MPIBinaryTransportWrapper: ISerializable {
    [NonSerialized]
    private object innerItem;

    public IItem GetInnerItem(IExecutionContext globalScope) {
        return ItemTransfer.Convert(innerItem, globalScope);
    }

    public MPIBinaryTransportWrapper(object item) {
      innerItem = item;
    }

    public MPIBinaryTransportWrapper(IItem item) {
      innerItem = ItemTransfer.Convert(item);
    }

    protected MPIBinaryTransportWrapper(SerializationInfo info, StreamingContext context) {
      byte[] buffer = info.GetValue("Item", typeof(byte[])) as byte[];
      IFormatter formatter = new BinaryFormatter();
      if (buffer != null)
        try {
        innerItem = formatter.Deserialize(new MemoryStream(buffer));
        }
        catch (Exception e) {
          Console.WriteLine(e);
          throw e;
        }
      else
        innerItem = null;
    }

    #region ISerializable Members

    public void GetObjectData(SerializationInfo info, StreamingContext context) {
      object value = null;

      if (innerItem != null) {
        MemoryStream stream = new MemoryStream();
        IFormatter formatter = new BinaryFormatter();
        try {
          formatter.Serialize(stream, innerItem);
        }
        catch (Exception e) {
          Console.WriteLine(e);
          throw e;
        }
        value = stream.GetBuffer();
      } 
        
      info.AddValue("Item", value);     
    }

    #endregion
  }
}