root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / layers / vectorial / EqualsGeometryEvaluator.java @ 38557
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| 1 | 26438 | vcaballero | package org.gvsig.fmap.mapcontext.layers.vectorial; |
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| 2 | |||
| 3 | import org.cresques.cts.ICoordTrans; |
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| 4 | import org.cresques.cts.IProjection; |
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| 5 | 28074 | jmvivo | import org.gvsig.fmap.dal.exception.DataEvaluatorRuntimeException; |
| 6 | 26438 | vcaballero | import org.gvsig.fmap.dal.feature.Feature; |
| 7 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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| 8 | import org.gvsig.fmap.dal.feature.FeatureType; |
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| 9 | import org.gvsig.fmap.geom.Geometry; |
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| 10 | 28074 | jmvivo | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
| 11 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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| 12 | 26438 | vcaballero | import org.gvsig.fmap.geom.operation.relationship.DefaultRelationshipGeometryOperationContext; |
| 13 | import org.gvsig.fmap.geom.operation.relationship.Equals; |
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| 14 | 28074 | jmvivo | import org.gvsig.fmap.geom.operation.towkt.ToWKT; |
| 15 | 26438 | vcaballero | import org.gvsig.tools.evaluator.AbstractEvaluator; |
| 16 | import org.gvsig.tools.evaluator.EvaluatorData; |
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| 17 | import org.gvsig.tools.evaluator.EvaluatorException; |
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| 18 | /**
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| 19 | *
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| 20 | * @author Vicente Caballero Navarro
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| 21 | *
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| 22 | */
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| 23 | public class EqualsGeometryEvaluator extends AbstractEvaluator { |
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| 24 | |||
| 25 | private String geomName; |
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| 26 | private Geometry geometry;
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| 27 | 28074 | jmvivo | private String geometryWKT = null; |
| 28 | 26438 | vcaballero | private Geometry geometryTrans;
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| 29 | private String srs; |
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| 30 | private boolean isDefault; |
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| 31 | |||
| 32 | public EqualsGeometryEvaluator(Geometry geometry,
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| 33 | 28074 | jmvivo | IProjection projection, FeatureType featureType, |
| 34 | 26438 | vcaballero | String geomName) {
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| 35 | FeatureAttributeDescriptor fad = (FeatureAttributeDescriptor) featureType |
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| 36 | .get(geomName); |
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| 37 | this.isDefault = featureType.getDefaultGeometryAttributeName().equals(
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| 38 | geomName); |
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| 39 | this.geometry = geometry;
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| 40 | this.geometryTrans = geometry.cloneGeometry();
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| 41 | 28074 | jmvivo | this.srs = projection.getAbrev();
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| 42 | ICoordTrans ct = projection.getCT(fad.getSRS()); |
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| 43 | 26438 | vcaballero | if (ct != null) { |
| 44 | geometryTrans.reProject(ct); |
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| 45 | } |
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| 46 | this.geomName = geomName;
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| 47 | |||
| 48 | this.getFieldsInfo().addMatchFieldValue(geomName, geometryTrans);
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| 49 | |||
| 50 | } |
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| 51 | |||
| 52 | public Object evaluate(EvaluatorData data) throws EvaluatorException { |
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| 53 | try {
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| 54 | DefaultRelationshipGeometryOperationContext context; |
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| 55 | if (isDefault) {
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| 56 | Feature feature = (Feature) data.getContextValue("feature");
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| 57 | context =new DefaultRelationshipGeometryOperationContext(feature
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| 58 | .getDefaultGeometry()); |
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| 59 | |||
| 60 | } else {
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| 61 | Geometry geom = (Geometry) data.getDataValue(geomName); |
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| 62 | |||
| 63 | context = new DefaultRelationshipGeometryOperationContext(geom);
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| 64 | } |
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| 65 | return geometryTrans.invokeOperation(Equals.CODE, context);
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| 66 | |||
| 67 | } catch (Exception e) { |
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| 68 | throw new EvaluatorException(e); |
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| 69 | } |
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| 70 | } |
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| 71 | |||
| 72 | public String getName() { |
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| 73 | return "equals with geometry"; |
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| 74 | } |
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| 75 | |||
| 76 | 33053 | cordinyana | public String getSQL() { |
| 77 | 28074 | jmvivo | if (geometryWKT == null) { |
| 78 | try {
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| 79 | geometryWKT = (String) geometry.invokeOperation(ToWKT.CODE,
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| 80 | null);
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| 81 | } catch (GeometryOperationNotSupportedException e) {
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| 82 | throw new DataEvaluatorRuntimeException(e); |
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| 83 | } catch (GeometryOperationException e) {
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| 84 | throw new DataEvaluatorRuntimeException(e); |
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| 85 | } |
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| 86 | } |
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| 87 | return " equals(GeomFromText('" + geometryWKT + "', " + "'" |
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| 88 | 26438 | vcaballero | + srs + "'" + "), " + geomName + ") "; |
| 89 | } |
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| 90 | |||
| 91 | } |