1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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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 HeuristicLab.DataPreprocessing.Filter;
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23 | using System.Collections.Generic;
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24 | using System;
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25 | using System.Linq;
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26 | namespace HeuristicLab.DataPreprocessing {
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27 | public class FilterLogic : IFilterLogic {
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28 |
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29 | private ITransactionalPreprocessingData preprocessingData;
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30 |
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31 | public FilterLogic(ITransactionalPreprocessingData preprocessingData) {
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32 | this.preprocessingData = preprocessingData;
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33 | }
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34 |
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35 | public bool[] Preview(IList<IFilter> filters)
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36 | {
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37 | bool[] result = Enumerable.Repeat<bool>(true, preprocessingData.Rows).ToArray();
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38 |
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39 | foreach (IFilter filter in filters)
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40 | {
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41 | if (filter.ConstraintData == null || !filter.Active) {
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42 | continue;
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43 | }
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44 |
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45 | bool[] filterResult = filter.Check();
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46 |
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47 | for(int row = 0; row < result.Length; ++row) {
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48 | result[row] = result[row] && filterResult[row];
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49 | }
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50 | }
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51 |
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52 | return result;
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53 | }
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54 |
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55 | public void Apply(IList<IFilter> filters)
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56 | {
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57 | bool[] results = Preview(filters);
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58 |
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59 | for(int row = 0; row < results.Length; ++row)
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60 | {
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61 | if(!results[row]){
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62 | preprocessingData.DeleteRow(row);
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63 | }
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64 | }
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65 | }
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66 |
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67 |
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68 | public IPreprocessingData PreprocessingData
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69 | {
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70 | get { return preprocessingData; }
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71 | }
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72 | }
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73 | }
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