* See also the nested ValidateGeometryAction class below which runs this method in a background
* thread and reports on the results
*
* @return the number of invalid geometries found
*/
// docs start validate
private int validateFeatureGeometry(ProgressListener progress) throws Exception {
final SimpleFeatureCollection featureCollection = featureSource.getFeatures();
// Rather than use an iterator, create a FeatureVisitor to check each fature
class ValidationVisitor implements FeatureVisitor {
public int numInvalidGeometries = 0;
public void visit(Feature f) {
SimpleFeature feature = (SimpleFeature) f;
Geometry geom = (Geometry) feature.getDefaultGeometry();
if (geom != null && !geom.isValid()) {
numInvalidGeometries++;
System.out.println("Invalid Geoemtry: " + feature.getID());
}
}
}
ValidationVisitor visitor = new ValidationVisitor();
// Pass visitor and the progress bar to feature collection
featureCollection.accepts(visitor, progress);
return visitor.numInvalidGeometries;
}
// docs end validate
/**
* This class performs the task of exporting the features to a new shapefile using the map
* projection that they are currently displayed in. It also supplies the name and tool tip for
* the toolbar button.
*/
// docs start export action
class ExportShapefileAction extends SafeAction {
ExportShapefileAction() {
super("Export...");
putValue(Action.SHORT_DESCRIPTION, "Export using current crs");
}
public void action(ActionEvent e) throws Throwable {
exportToShapefile();
}
}
// docs end export action
/**
* This class performs the task of checking that the Geometry of each feature is topologically
* valid and reports on the results. It also supplies the name and tool tip.
*/
// docs start validate action
class ValidateGeometryAction extends SafeAction {
ValidateGeometryAction() {
super("Validate geometry");
putValue(Action.SHORT_DESCRIPTION, "Check each geometry");
}
public void action(ActionEvent e) throws Throwable {
int numInvalid = validateFeatureGeometry(null);
String msg;
if (numInvalid == 0) {
msg = "All feature geometries are valid";
} else {
msg = "Invalid geometries: " + numInvalid;
}
JOptionPane.showMessageDialog(null, msg, "Geometry results",
JOptionPane.INFORMATION_MESSAGE);
}
}
// docs end validate action
/**
* This class performs the task of checking that the Geometry of each feature is topologically
* valid and reports on the results. It also supplies the name and tool tip.
*/
// docs start validate action2
class ValidateGeometryAction2 extends SafeAction {
ValidateGeometryAction2() {
super("Validate geometry");
putValue(Action.SHORT_DESCRIPTION, "Check each geometry");
}
public void action(ActionEvent e) throws Throwable {
// Here we use the SwingWorker helper class to run the validation routine in a
// background thread, otherwise the GUI would wait and the progress bar would not be
// displayed properly
SwingWorker worker = new SwingWorker