#region License Information
/* HeuristicLab
* Copyright (C) 2002-2018 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 HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Operators {
///
/// An Operator which sorts the sub-scopes of the current scope.
///
[Item("SubScopesSorter", "An operator which sorts the sub-scopes of the current scope.")]
[StorableClass]
public sealed class SubScopesSorter : SingleSuccessorOperator {
private bool descending;
private string actualName;
public ScopeTreeLookupParameter ValueParameter {
get { return (ScopeTreeLookupParameter)Parameters["Value"]; }
}
public ValueLookupParameter DescendingParameter {
get { return (ValueLookupParameter)Parameters["Descending"]; }
}
private ScopeParameter CurrentScopeParameter {
get { return (ScopeParameter)Parameters["CurrentScope"]; }
}
public IScope CurrentScope {
get { return CurrentScopeParameter.ActualValue; }
}
[StorableConstructor]
private SubScopesSorter(bool deserializing) : base(deserializing) { }
private SubScopesSorter(SubScopesSorter original, Cloner cloner)
: base(original, cloner) {
}
public SubScopesSorter()
: base() {
Parameters.Add(new ScopeTreeLookupParameter("Value", "The values contained in each sub-scope acording which the sub-scopes of the current scope are sorted."));
Parameters.Add(new ValueLookupParameter("Descending", "True if the sub-scopes should be sorted in descending order, otherwise false."));
Parameters.Add(new ScopeParameter("CurrentScope", "The current scope whose sub-scopes are sorted."));
}
public override IDeepCloneable Clone(Cloner cloner) {
return new SubScopesSorter(this, cloner);
}
public override IOperation Apply() {
descending = DescendingParameter.ActualValue.Value;
actualName = ValueParameter.TranslatedName;
CurrentScope.SubScopes.Sort(SortScopes);
return base.Apply();
}
private int SortScopes(IScope x, IScope y) {
IVariable var1;
IVariable var2;
x.Variables.TryGetValue(actualName, out var1);
y.Variables.TryGetValue(actualName, out var2);
if ((var1 == null) && (var2 == null))
return 0;
else if ((var1 == null) && (var2 != null))
return 1;
else if ((var1 != null) && (var2 == null))
return -1;
else {
int result = ((DoubleValue)var1.Value).CompareTo((DoubleValue)var2.Value);
if (descending) result = result * -1;
return result;
}
}
}
}