[3592] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[11171] | 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3592] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Collections.Generic;
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[4722] | 24 | using HeuristicLab.Common;
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[3592] | 25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 26 |
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[3602] | 27 | namespace HeuristicLab.Core {
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[3592] | 28 | [StorableClass]
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| 29 | [Item("ComparisonConstraint", "A constraint which checks for specified compare operation.")]
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| 30 | public class ComparisonConstraint : Constraint {
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[3602] | 31 | [StorableConstructor]
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[4153] | 32 | protected ComparisonConstraint(bool deserializing) : base(deserializing) { }
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[4722] | 33 | protected ComparisonConstraint(ComparisonConstraint original, Cloner cloner) : base(original, cloner) { }
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[4153] | 34 | public ComparisonConstraint() : base() { }
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[3602] | 35 | public ComparisonConstraint(IItem constrainedValue, ConstraintOperation comparisonOperation, object comparisonValue)
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| 36 | : base(constrainedValue, comparisonOperation, comparisonValue) {
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| 37 | }
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| 38 | public ComparisonConstraint(IItem constrainedValue, ConstraintOperation comparisonOperation, object comparisonValue, bool active)
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[10745] | 39 | : base(constrainedValue, comparisonOperation, comparisonValue, active) {
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[3602] | 40 | }
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[3592] | 41 |
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[3602] | 42 | public override IEnumerable<ConstraintOperation> AllowedConstraintOperations {
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[3630] | 43 | get { return new ConstraintOperation[6] { ConstraintOperation.Less, ConstraintOperation.LessOrEqual, ConstraintOperation.Equal, ConstraintOperation.GreaterOrEqual, ConstraintOperation.Greater, ConstraintOperation.NotEqual }; }
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[3592] | 44 | }
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| 45 |
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[4722] | 46 | public override IDeepCloneable Clone(Cloner cloner) {
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| 47 | return new ComparisonConstraint(this, cloner);
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| 48 | }
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| 49 |
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[3592] | 50 | protected override bool Check(object constrainedMember) {
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[3602] | 51 | if (constrainedMember == null)
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| 52 | return false;
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| 53 |
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[3592] | 54 | IComparable comparableMember = constrainedMember as IComparable;
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| 55 | if (comparableMember == null)
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| 56 | throw new InvalidOperationException("Constrained member must be of type IComparable to be used with ComparisonConstraint.");
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| 57 |
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[3602] | 58 | int compareResult = comparableMember.CompareTo(this.ConstraintData);
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[3592] | 59 | bool result = false;
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[3630] | 60 | if (this.ConstraintOperation == ConstraintOperation.Less)
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[3592] | 61 | result = compareResult < 0;
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[3630] | 62 | else if (this.ConstraintOperation == ConstraintOperation.LessOrEqual)
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[3592] | 63 | result = compareResult <= 0;
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[3602] | 64 | else if (this.ConstraintOperation == ConstraintOperation.Equal)
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[3592] | 65 | result = compareResult == 0;
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[3602] | 66 | else if (this.ConstraintOperation == ConstraintOperation.GreaterOrEqual)
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[3592] | 67 | result = compareResult >= 0;
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[3602] | 68 | else if (this.ConstraintOperation == ConstraintOperation.Greater)
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[3592] | 69 | result = compareResult > 0;
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[3602] | 70 | else if (this.ConstraintOperation == ConstraintOperation.NotEqual)
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[3592] | 71 | result = compareResult != 0;
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| 72 | else
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[3602] | 73 | throw new InvalidOperationException("Constraint operation " + this.ConstraintOperation + " is not defined for ComparisonConstraint.");
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[3592] | 74 |
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| 75 | return result;
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| 76 | }
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[3602] | 77 |
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| 78 | protected override bool Check(object constrainedMember, out string errorMessage) {
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| 79 | bool result = Check(constrainedMember);
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| 80 | errorMessage = string.Empty;
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| 81 | if (!result)
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| 82 | errorMessage = constrainedMember.ToString() + " must be " + ConstraintOperation.ToString() + " than " + ConstraintData.ToString() + ".";
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| 83 | return result;
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| 84 | }
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[3592] | 85 | }
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| 86 | }
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