Revision 10626 trunk/extensions/extGeoprocessingExtensions/src/com/iver/cit/gvsig/geoprocess/impl/xyshift/fmap/XYShifterFeatureVisitor.java
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* |
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* $Id$ |
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* $Log$ |
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* Revision 1.2 2006-06-29 17:58:31 azabala |
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* Revision 1.3 2007-03-06 16:48:14 caballero |
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* Exceptions |
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* |
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* Revision 1.2 2006/06/29 17:58:31 azabala |
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* *** empty log message *** |
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* |
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* Revision 1.1 2006/06/28 18:17:21 azabala |
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import java.awt.geom.AffineTransform; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.exceptions.visitors.ProcessVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.StartVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.StopWriterVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.VisitorException; |
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import com.iver.cit.gvsig.fmap.core.IFeature; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
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import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
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import com.iver.cit.gvsig.fmap.edition.EditionException; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.AlphanumericData; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData; |
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import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor; |
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import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.FeatureFactory; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.FeatureProcessor; |
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/** |
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* This visitor apply an xy offset to visited features and save the result. |
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*
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* |
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* @author azabala |
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*
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* |
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*/ |
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public class XYShifterFeatureVisitor implements FeatureVisitor {
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/** |
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* recordset of the source layer |
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*/ |
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SelectableDataSource recordset; |
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/** |
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* Schema of the result layer (the same that the input layer) |
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*/ |
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/** |
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* Default constructor |
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*
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* |
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* @param featureProcessor |
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* @param selection |
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* @param dx |
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* @param dy |
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* offset to apply in y direction |
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*/ |
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public XYShifterFeatureVisitor(FeatureProcessor featureProcessor,
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public XYShifterFeatureVisitor(FeatureProcessor featureProcessor, |
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ILayerDefinition layerDef, |
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double dx, double dy) {
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this.featureProcessor = featureProcessor; |
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this.layerDefinition = layerDef; |
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this.offsetTransform = createTransform(dx, dy); |
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} |
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public void setSelection(FBitSet selection){
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this.selection = selection; |
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} |
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return solution; |
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} |
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public void visit(IGeometry g, int index) throws VisitException {
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public void visit(IGeometry g, int index) throws VisitorException, StopWriterVisitorException, ProcessVisitorException {
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if(g == null) |
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return; |
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if(selection != null){
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IFeature newFeature; |
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try {
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newFeature = createFeature(newGeometry, index); |
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} catch (DriverException e) {
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throw new VisitException("Error al construir el feature de resultado");
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} catch (com.hardcode.gdbms.engine.data.driver.DriverException e) {
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throw new VisitException("Error al construir el feature de resultado");
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} catch (ReadDriverException e) {
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throw new ProcessVisitorException(recordset.getName(),e,"Error al construir el feature de resultado"); |
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} |
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featureProcessor.processFeature(newFeature); |
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} |
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private IFeature createFeature(IGeometry geometry, int layerIndex) |
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throws DriverException, com.hardcode.gdbms.engine.data.driver.DriverException {
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private IFeature createFeature(IGeometry geometry, int layerIndex) throws ReadDriverException {
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IFeature solution = null; |
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FieldDescription[] fields = layerDefinition.getFieldsDesc(); |
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Value[] featureAttr = new Value[fields.length]; |
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return "Apply a xy shift to IGeometry coordinates"; |
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} |
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public void stop(FLayer layer) {
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public void stop(FLayer layer) throws StopWriterVisitorException, VisitorException {
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featureProcessor.finish(); |
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} |
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public boolean start(FLayer layer) {
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public boolean start(FLayer layer) throws StartVisitorException {
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if (layer instanceof AlphanumericData && layer instanceof VectorialData) {
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try {
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this.recordset = ((AlphanumericData) layer).getRecordset(); |
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this.featureProcessor.start(); |
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} catch (DriverException e) {
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} catch (ReadDriverException e) {
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return false;// must we throw an Exception?? |
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} catch (EditionException e) {
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return false; |
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} |
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return true; |
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} |
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