svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / layers / vectorial / WithinGeometryEvaluator.java @ 43034
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | 43034 | jjdelcerro | * This program is free software; you can redistribute it and/or modify it under
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7 | * the terms of the GNU General Public License as published by the Free Software
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8 | * Foundation; either version 3 of the License, or (at your option) any later
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9 | * version.
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10 | 40559 | jjdelcerro | *
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11 | 43034 | jjdelcerro | * This program is distributed in the hope that it will be useful, but WITHOUT
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12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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13 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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14 | * details.
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15 | 40559 | jjdelcerro | *
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16 | 43034 | jjdelcerro | * You should have received a copy of the GNU General Public License along with
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17 | * this program; if not, write to the Free Software Foundation, Inc., 51
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18 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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19 | 40559 | jjdelcerro | *
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20 | 43034 | jjdelcerro | * For any additional information, do not hesitate to contact us at info AT
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21 | * gvsig.com, or visit our website www.gvsig.com.
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22 | 40559 | jjdelcerro | */
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23 | 40435 | jjdelcerro | package org.gvsig.fmap.mapcontext.layers.vectorial; |
24 | |||
25 | import org.cresques.cts.ICoordTrans; |
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26 | import org.cresques.cts.IProjection; |
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27 | 43034 | jjdelcerro | import org.gvsig.fmap.dal.ExpressionBuilder; |
28 | 40435 | jjdelcerro | import org.gvsig.fmap.dal.feature.Feature; |
29 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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30 | import org.gvsig.fmap.dal.feature.FeatureType; |
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31 | import org.gvsig.fmap.geom.Geometry; |
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32 | import org.gvsig.tools.evaluator.AbstractEvaluator; |
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33 | import org.gvsig.tools.evaluator.EvaluatorData; |
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34 | import org.gvsig.tools.evaluator.EvaluatorException; |
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35 | 43034 | jjdelcerro | |
36 | 40435 | jjdelcerro | public class WithinGeometryEvaluator extends AbstractEvaluator { |
37 | |||
38 | 43034 | jjdelcerro | private final String geomName; |
39 | private final Geometry geometry; |
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40 | private final Geometry geometryTrans; |
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41 | private final boolean isDefault; |
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42 | private final ExpressionBuilder builder; |
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43 | private final IProjection projection; |
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44 | 40435 | jjdelcerro | |
45 | 43034 | jjdelcerro | WithinGeometryEvaluator( |
46 | Geometry geometry, |
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47 | IProjection projection, |
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48 | FeatureType featureType, |
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49 | String geomName,
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50 | ExpressionBuilder builder |
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51 | ) { |
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52 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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53 | .get(geomName); |
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54 | this.isDefault = featureType.getDefaultGeometryAttributeName().equals(
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55 | geomName); |
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56 | this.geometry = geometry;
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57 | this.geometryTrans = geometry.cloneGeometry();
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58 | this.projection = projection;
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59 | this.builder = builder;
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60 | 40435 | jjdelcerro | |
61 | 43034 | jjdelcerro | IProjection fad_proj = fad.getSRS(); |
62 | ICoordTrans ct = null;
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63 | 40435 | jjdelcerro | |
64 | 43034 | jjdelcerro | if (fad_proj != null && !fad_proj.equals(projection)) { |
65 | ct = projection.getCT(fad_proj); |
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66 | } |
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67 | 40435 | jjdelcerro | |
68 | 43034 | jjdelcerro | if (ct != null) { |
69 | geometryTrans.reProject(ct); |
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70 | } |
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71 | this.geomName = geomName;
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72 | 40435 | jjdelcerro | |
73 | 43034 | jjdelcerro | this.getFieldsInfo().addMatchFieldValue(geomName, geometryTrans);
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74 | 40435 | jjdelcerro | |
75 | 43034 | jjdelcerro | } |
76 | 40435 | jjdelcerro | |
77 | 43034 | jjdelcerro | @Override
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78 | public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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79 | try {
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80 | Geometry geom; |
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81 | if (isDefault) {
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82 | Feature feature = (Feature) data.getContextValue("feature");
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83 | geom = feature.getDefaultGeometry(); |
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84 | 40435 | jjdelcerro | |
85 | 43034 | jjdelcerro | } else {
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86 | geom = (Geometry) data.getDataValue(geomName); |
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87 | } |
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88 | if (geom == null) { |
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89 | return false; |
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90 | } |
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91 | return geometryTrans.within(geom);
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92 | 40435 | jjdelcerro | |
93 | 43034 | jjdelcerro | } catch (Exception e) { |
94 | throw new EvaluatorException(e); |
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95 | } |
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96 | } |
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97 | |||
98 | @Override
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99 | public String getName() { |
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100 | return "within with geometry"; |
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101 | } |
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102 | |||
103 | @Override
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104 | public String getSQL() { |
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105 | return this.builder.set( |
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106 | builder.ST_Within( |
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107 | builder.geometry(geometry, projection), |
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108 | builder.column(geomName) |
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109 | ) |
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110 | ).toString(); |
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111 | } |
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112 | 40435 | jjdelcerro | } |