source: branches/OptimizationNetworks/HeuristicLab.Optimization.Networks/3.3/InputOutputPort.cs @ 11421

Last change on this file since 11421 was 11421, checked in by swagner, 8 years ago

#2205: Worked on optimization networks

File size: 3.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
25using System;
26
27namespace HeuristicLab.Optimization.Networks {
28  [Item("InputOutputPort", "A synchronous input/output port of an optimization network node.")]
29  [StorableClass]
30  public class InputOutputPort<TIn, TOut> : ValuePort<TIn>, IInputOutputPort<TIn, TOut>
31    where TIn : class, IItem
32    where TOut : class, IItem {
33    [Storable]
34    private IOutputInputPort<TIn, TOut> outputInputPort;
35    public IOutputInputPort<TIn, TOut> OutputInputPort {
36      get { return outputInputPort; }
37      set {
38        if (outputInputPort != value) {
39          DeregisterOutputInputPortEvents();
40          outputInputPort = value;
41          RegisterOutputInputPortEvents();
42          OnOutputInputPortChanged();
43        }
44      }
45    }
46    IOutputInputPort IInputOutputPort.OutputInputPort {
47      get { return outputInputPort; }
48    }
49
50    [StorableConstructor]
51    protected InputOutputPort(bool deserializing) : base(deserializing) { }
52    protected InputOutputPort(InputOutputPort<TIn, TOut> original, Cloner cloner) : base(original, cloner) {
53      outputInputPort = cloner.Clone(original.outputInputPort);
54      RegisterOutputInputPortEvents();
55    }
56    public InputOutputPort() : base("InputOutputPort") { }
57    public InputOutputPort(string name) : base(name) { }
58    public InputOutputPort(string name, string description) : base(name, description) { }
59
60    [StorableHook(HookType.AfterDeserialization)]
61    private void AfterDeserialization() {
62      RegisterOutputInputPortEvents();
63    }
64
65    public override IDeepCloneable Clone(Cloner cloner) {
66      return new InputOutputPort<TIn, TOut>(this, cloner);
67    }
68
69    public event EventHandler OutputInputPortChanged;
70    protected void OnOutputInputPortChanged() {
71      var handler = OutputInputPortChanged;
72      if (handler != null) handler(this, EventArgs.Empty);
73    }
74
75    public event EventHandler<OutputInputPortEventArgs<TIn, TOut>> ValueReceived;
76    protected TOut OnValueReceived(TIn value) {
77      var args = new OutputInputPortEventArgs<TIn, TOut>(value);
78      var handler = ValueReceived;
79      if (handler != null) handler(this, args);
80      return args.Result;
81    }
82
83    protected void RegisterOutputInputPortEvents() {
84      if (outputInputPort != null) {
85        outputInputPort.ValueSent += OutputInputPort_ValueSent;
86      }
87    }
88    protected void DeregisterOutputInputPortEvents() {
89      if (outputInputPort != null) {
90        outputInputPort.ValueSent -= OutputInputPort_ValueSent;
91      }
92    }
93    protected void OutputInputPort_ValueSent(object sender, OutputInputPortEventArgs<TIn, TOut> e) {
94      var value = (TIn)e.Value.Clone();
95      Value = value;
96      e.Result = OnValueReceived(value);
97      //DISCUSS: clone value?
98      //DISCUSS: switch threads to decouple value propagation and resulting action -> should be done in Node?
99    }
100  }
101}
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