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source: branches/Breadcrumbs/HeuristicLab.Optimization/3.3/RunCollectionModification/RunCollectionFormulaModifer.cs @ 11594

Last change on this file since 11594 was 11594, checked in by jkarder, 10 years ago

#2116: merged r10041-r11593 from trunk into branch

File size: 4.6 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 System;
23using System.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Common;
27using HeuristicLab.Core;
28using HeuristicLab.Data;
29using HeuristicLab.Parameters;
30using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
31
32namespace HeuristicLab.Optimization {
33
34  [Item("RunCollection Formula Modifier", "Modifies a RunCollection by adding results using the given formula.")]
35  [StorableClass]
36  public class RunCollectionFormulaModifer : ParameterizedNamedItem, IRunCollectionModifier {
37
38    public override bool CanChangeName { get { return false; } }
39    public override bool CanChangeDescription { get { return false; } }
40
41    public ValueParameter<StringValue> ResultNameParameter {
42      get { return (ValueParameter<StringValue>)Parameters["ResultName"]; }
43    }
44
45    public ValueParameter<StringValue> FormulaParameter {
46      get { return (ValueParameter<StringValue>)Parameters["Formula"]; }
47    }
48
49    private string ResultName { get { return ResultNameParameter.Value.Value; } }
50    private string Formula { get { return FormulaParameter.Value.Value; } }
51
52    #region Construction & Cloning
53    [StorableConstructor]
54    protected RunCollectionFormulaModifer(bool deserializing) : base(deserializing) { }
55    protected RunCollectionFormulaModifer(RunCollectionFormulaModifer original, Cloner cloner)
56      : base(original, cloner) {
57      RegisterEvents();
58    }
59    public RunCollectionFormulaModifer() {
60      Parameters.Add(new ValueParameter<StringValue>("ResultName", "The name of the result to be generated by this formula.", new StringValue("Calc.Value")));
61      Parameters.Add(new ValueParameter<StringValue>("Formula",
62@"RPN formula for new value in postfix notation.
63
64This can contain the following elements:
65
66literals:
67  numbers, true, false, null and strings in single quotes
68variables (run parameters or results):
69  unquoted or in double quotes if they contain special characters or whitespace
70mathematical functions:
71  +, -, /, ^ (power), log
72predicates:
73  ==, <, >, isnull, not
74stack manipulation:
75  drop swap dup
76string matching:
77  <string> <pattern> ismatch
78string replacing:
79  <string> <pattern> <replacement> rename
80conditionals:
81  <then> <else> <condition> if
82
83If the final value is null, the result variable is removed if it exists.",
84        new StringValue("1 1 +")));
85      UpdateName();
86      RegisterEvents();
87    }
88    public override IDeepCloneable Clone(Cloner cloner) {
89      return new RunCollectionFormulaModifer(this, cloner);
90    }
91    [StorableHook(HookType.AfterDeserialization)]
92    private void AfterDeserialization() {
93      RegisterEvents();
94    }
95    #endregion
96
97    private void RegisterEvents() {
98      ResultNameParameter.ToStringChanged += Parameter_NameChanged;
99      FormulaParameter.ToStringChanged += Parameter_NameChanged;
100    }
101
102    void Parameter_NameChanged(object sender, EventArgs e) {
103      UpdateName();
104    }
105
106    private void UpdateName() {
107      name = string.Format("{0} := {1}", ResultName, Formula);
108      OnNameChanged();
109    }
110
111    public void Modify(List<IRun> runs) {
112      var calc = new Calculator { Formula = Formula };
113      foreach (var run in runs) {
114        var variables = new Dictionary<string, IItem>();
115        foreach (var param in run.Parameters)
116          variables[param.Key] = param.Value;
117        foreach (var result in run.Results)
118          variables[result.Key] = result.Value;
119        try {
120          var value = calc.GetValue(variables);
121          if (value != null)
122            run.Results[ResultName] = value;
123          else
124            run.Results.Remove(ResultName);
125        } catch (Exception x) {
126          throw new Exception(string.Format("Calculation failed at Run {0}", run.Name), x);
127        }
128      }
129    }
130
131  }
132}
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