source: branches/OptimizationNetworks/HeuristicLab.Optimization.Networks/3.3/ClientServicePort.cs @ 11454

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2014 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 HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using System;
using System.Collections.Generic;
using System.Linq;

namespace HeuristicLab.Optimization.Networks {
  [Item("ClientServicePort", "An abstract base class for service and client ports of optimization network nodes.")]
  [StorableClass]
  public abstract class ClientServicePort : Port, IClientServicePort {
    public override IEnumerable<IEntity> Children {
      get { return base.Children.Concat(Parameters.AsEnumerable<IEntity>()); }
    }

    [Storable]
    protected ServiceParameterCollection parameters;
    public ServiceParameterCollection Parameters {
      get { return parameters; }
    }

    [StorableConstructor]
    protected ClientServicePort(bool deserializing) : base(deserializing) { }
    protected ClientServicePort(ClientServicePort original, Cloner cloner)
      : base(original, cloner) {
      parameters = cloner.Clone(original.parameters);
      foreach (var p in Parameters)
        p.Parent = this;
      RegisterParametersEvents();
    }
    protected ClientServicePort()
      : base("ClientServicePort") {
      parameters = new ServiceParameterCollection();
      RegisterParametersEvents();
    }
    protected ClientServicePort(string name)
      : base(name) {
      parameters = new ServiceParameterCollection();
      RegisterParametersEvents();
    }
    protected ClientServicePort(string name, string description)
      : base(name, description) {
      parameters = new ServiceParameterCollection();
      RegisterParametersEvents();
    }

    [StorableHook(HookType.AfterDeserialization)]
    private void AfterDeserialization() {
      foreach (var p in Parameters)
        p.Parent = this;
      RegisterParametersEvents();
    }

    public event EventHandler InterfaceChanged;
    protected virtual void OnInterfaceChanged() {
      var handler = InterfaceChanged;
      if (handler != null) handler(this, EventArgs.Empty);
    }

    #region Parameters Events
    protected virtual void RegisterParametersEvents() {
      parameters.ItemsAdded += Parameters_ItemsAdded;
      parameters.ItemsRemoved += Parameters_ItemsRemoved;
      parameters.ItemsReplaced += Parameters_ItemsReplaced;
      parameters.CollectionReset += Parameters_CollectionReset;
      foreach (var p in parameters)
        RegisterParameterEvents(p);
    }
    protected virtual void Parameters_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IServiceParameter> e) {
      foreach (var p in e.Items) {
        p.Parent = this;
        RegisterParameterEvents(p);
      }
      OnInterfaceChanged();
    }
    protected virtual void Parameters_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IServiceParameter> e) {
      foreach (var p in e.Items) {
        p.Parent = null;
        DeregisterParameterEvents(p);
      }
      OnInterfaceChanged();
    }
    protected virtual void Parameters_ItemsReplaced(object sender, Collections.CollectionItemsChangedEventArgs<IServiceParameter> e) {
      foreach (var p in e.OldItems) {
        p.Parent = null;
        DeregisterParameterEvents(p);
      }
      foreach (var p in e.Items) {
        p.Parent = this;
        RegisterParameterEvents(p);
      }
      OnInterfaceChanged();
    }
    protected virtual void Parameters_CollectionReset(object sender, Collections.CollectionItemsChangedEventArgs<IServiceParameter> e) {
      foreach (var p in e.OldItems) {
        p.Parent = null;
        DeregisterParameterEvents(p);
      }
      foreach (var p in e.Items) {
        p.Parent = this;
        RegisterParameterEvents(p);
      }
      OnInterfaceChanged();
    }
    #endregion

    #region Parameter Events
    protected virtual void RegisterParameterEvents(IServiceParameter parameter) {
      parameter.NameChanged += ServiceParameter_NameChanged;
      parameter.TypeChanged += ServiceParameter_TypeChanged;
    }
    protected virtual void DeregisterParameterEvents(IServiceParameter parameter) {
      parameter.NameChanged -= ServiceParameter_NameChanged;
      parameter.TypeChanged -= ServiceParameter_TypeChanged;
    }
    protected virtual void ServiceParameter_NameChanged(object sender, EventArgs e) {
      OnInterfaceChanged();
    }
    protected virtual void ServiceParameter_TypeChanged(object sender, EventArgs e) {
      OnInterfaceChanged();
    }
    #endregion
  }
}