#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2010 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.Text;

namespace HeuristicLab.Persistence.Core {

  /// <summary>
  /// Exception thrown by components inside the persistence framework.
  /// </summary>
  [Serializable]
  public class PersistenceException : Exception {

    /// <summary>
    /// Initializes a new instance of the <see cref="PersistenceException"/> class.
    /// </summary>
    public PersistenceException() : base() { }

    /// <summary>
    /// Initializes a new instance of the <see cref="PersistenceException"/> class.
    /// </summary>
    /// <param name="message">The message.</param>
    public PersistenceException(string message) : base(message) { }

    /// <summary>
    /// Initializes a new instance of the <see cref="PersistenceException"/> class.
    /// </summary>
    /// <param name="message">The message.</param>
    /// <param name="innerException">The inner exception.</param>
    public PersistenceException(string message, Exception innerException) :
      base(message, innerException) { }

    /// <summary>
    /// Initializes a new instance of the <see cref="PersistenceException"/> class.
    /// </summary>
    /// <param name="message">The message.</param>
    /// <param name="innerExceptions">The inner exceptions.</param>
    public PersistenceException(string message, IEnumerable<Exception> innerExceptions)
      : base(message) {
      int i = 0;
      foreach (var x in innerExceptions) {
        i += 1;
        this.Data.Add("Inner Exception " + i, x);
      }
    }

    /// <summary>
    /// Returns a <see cref="System.String"/> that represents this instance.
    /// </summary>
    /// <returns>
    /// A <see cref="System.String"/> that represents this instance.
    /// </returns>
    /// <PermissionSet>
    /// 	<IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" PathDiscovery="*AllFiles*"/>
    /// </PermissionSet>
    public override string ToString() {
      var sb = new StringBuilder()
        .Append(base.ToString())
        .Append('\n');
      foreach (Exception x in Data.Values) {
        sb.Append(x.ToString()).Append('\n');
      }
      return sb.ToString();
    }
  }

}