#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 .
*/
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using HeuristicLab.Collections;
using HeuristicLab.Core;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Problems.ExternalEvaluation {
[Item("SolutionMessageBuilder", "Holds and uses a number of converters to translate HeuristicLab objects into appropriate fields of a solution message.")]
[StorableClass]
public class SolutionMessageBuilder : NamedItem {
public override bool CanChangeName { get { return false; } }
public override bool CanChangeDescription { get { return false; } }
private Dictionary> dispatcher;
[Storable]
private CheckedItemCollection converters;
public CheckedItemCollection Converters {
get { return converters; }
}
[StorableConstructor]
protected SolutionMessageBuilder(bool deserializing) : base(deserializing) { }
public SolutionMessageBuilder()
: base() {
name = ItemName;
description = ItemDescription;
converters = new CheckedItemCollection();
AttachEventHandlers();
converters.Add(new BoolConverter());
converters.Add(new DateTimeValueConverter());
converters.Add(new DoubleConverter());
converters.Add(new IntegerConverter());
converters.Add(new StringConverter());
converters.Add(new TimeSpanValueConverter());
}
public void AddToMessage(IItem item, string name, SolutionMessage.Builder builder) {
if (dispatcher == null) FillDispatcher();
Type itemType = item.GetType();
while (!dispatcher.ContainsKey(itemType)) {
if (itemType.BaseType != null) itemType = itemType.BaseType;
else break;
}
if (itemType.BaseType == null && !dispatcher.ContainsKey(itemType)) {
IEnumerable interfaces = item.GetType().GetInterfaces().Where(x => dispatcher.ContainsKey(x));
if (interfaces.Count() != 1) throw new ArgumentException(Name + ": No converter for type + " + itemType.FullName + " defined.", "item");
else itemType = interfaces.Single();
}
dispatcher[itemType](item, name, builder);
}
[StorableHook(HookType.AfterDeserialization)]
private void AttachEventHandlers() {
converters.ItemsAdded += new CollectionItemsChangedEventHandler(converters_ItemsAdded);
converters.ItemsRemoved += new CollectionItemsChangedEventHandler(converters_ItemsRemoved);
converters.CheckedItemsChanged += new CollectionItemsChangedEventHandler(converters_CheckedItemsChanged);
}
private void converters_ItemsAdded(object sender, CollectionItemsChangedEventArgs e) {
AddToDispatcher(e.Items);
}
private void converters_ItemsRemoved(object sender, CollectionItemsChangedEventArgs e) {
RemoveFromDispatcher(e.Items);
}
private void converters_CheckedItemsChanged(object sender, CollectionItemsChangedEventArgs e) {
FillDispatcher();
}
private void FillDispatcher() {
dispatcher = new Dictionary>();
foreach (IItemToSolutionMessageConverter c in converters.CheckedItems) {
Type[] types = c.ItemTypes;
foreach (Type t in types) {
if (dispatcher.ContainsKey(t)) dispatcher.Remove(t);
dispatcher.Add(t, new Action(c.AddItemToBuilder));
}
}
}
private void AddToDispatcher(IEnumerable items) {
if (dispatcher == null) FillDispatcher();
foreach (IItemToSolutionMessageConverter c in items) {
Type[] types = c.ItemTypes;
foreach (Type t in types) {
if (dispatcher.ContainsKey(t)) dispatcher.Remove(t);
dispatcher.Add(t, new Action(c.AddItemToBuilder));
}
}
}
private void RemoveFromDispatcher(IEnumerable items) {
if (dispatcher == null) FillDispatcher();
foreach (IItemToSolutionMessageConverter c in items) {
Type[] types = c.ItemTypes;
foreach (Type t in types) {
if (dispatcher.ContainsKey(t)) dispatcher.Remove(t);
}
}
}
}
}