JAVA GIS create shapefile from FeatureLayer

Question

The title kind of saids it all. I am attempting to export a featurelayer to a shapefile and am not having any luck finding a library which includes this functionality or relevant code to see where to get started here. Is this possible? If so, any ideas on how to accomplish the task?

I currently have made a button to make a featurelayer from a selection as follows:

protected void doActionPerformed(ActionEvent e) {
 IFeatureSelection featureSelection = getFeatureSelection();
 if (!(featureSelection instanceof IFeatureLayer)) {
 return;
 }
 FeatureLayer featureLayer;
 try {
 featureLayer = Casting.cast(featureSelection, FeatureLayer.class);
 Date currentDate = new Date();
 SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd hh:mm:ss");
 String dateString = dateFormat.format(currentDate);
 IFeatureLayer selectionLayer = featureLayer.createSelectionLayer(featureLayer.getName() + " " + dateString,
 true,
 "",
 "");
 ActiveMapContainer mapContainer = ActiveMapContainer.getInstance();
 mapContainer.getMap().addLayer(selectionLayer);
 } catch (Exception e1) {
 Log.error("CreateLayerFromSelectionAction.class doActionPerformed(ActionEvent e)", e1);
 e1.printStackTrace();
 }
}

• Branco: Look at this (gis.stackexchange.com/questions/26058/…). It is written for .NET, but ESRI is pretty good about using the same names so you should be able to translate it well enough.

Answer 1

I have solved this issue now and for those interested, the code is posted below... I help you all find this helpful:

public final class ExportLayerToShapefileAction extends SelectionAction {
public ExportLayerToShapefileAction() {
 super("gsExportToShapefile");
}
@Override
protected void doActionPerformed(ActionEvent e) {
 IFeatureSelection featureSelection = getFeatureSelection();
 if (!(featureSelection instanceof IFeatureLayer)) {
 return;
 }
 FeatureLayer featureLayer;
 try {
 featureLayer = Casting.cast(featureSelection, FeatureLayer.class);
 Date currentDate = new Date();
 SimpleDateFormat dateFormat = new SimpleDateFormat("MM-dd_hh-mm-ss");
 String dateString = dateFormat.format(currentDate);
 IFeatureLayer selectionLayer = featureLayer.createSelectionLayer(featureLayer.getName() + " " + dateString,
 true,
 "",
 "");
 JFileChooser fileChooser = new JFileChooser();
 fileChooser.setDialogTitle("Select a directory to export to.");
 fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
 int userSelection = fileChooser.showSaveDialog(WinMgr.getInstance().getSelectedNavigator());
 if (!(userSelection == JFileChooser.APPROVE_OPTION)) {
 return;
 }
 FileUtil.createFileIfNotExists(new File(fileChooser.getSelectedFile()
 .getAbsolutePath() + "\\Layer_Export_" + dateString));
 exportLayerToShapefile(fileChooser.getSelectedFile().getAbsolutePath(),
 "Layer_Export_" + dateString,
 selectionLayer,
 null,
 null);
 } catch (Exception e1) {
 e1.printStackTrace();
 }
}
public static boolean exportLayerToShapefile(
 String shapePath,
 String shapeName,
 ILayer source,
 IEnumFieldError[] fieldErrors,
 IEnumInvalidObject invalidObjects) {
 try {
 IFeatureLayer sfeatlayer = (IFeatureLayer) source;
 IFeatureClass sfeatClass = sfeatlayer.getFeatureClass();
 IDataset sdataset = Casting.cast(sfeatClass, IDataset.class);
 IDatasetName sdatasetName = (IDatasetName) sdataset.getFullName();
 ISelectionSet sSelectionSet = (
 (ITable) source).select(new QueryFilter(),
 esriSelectionType.esriSelectionTypeHybrid,
 esriSelectionOption.esriSelectionOptionNormal,
 sdataset.getWorkspace());
 IWorkspaceFactory factory = new ShapefileWorkspaceFactory();
 IWorkspace targetWorkspace = factory.openFromFile(shapePath, 0);
 IDataset targetDataset = (IDataset) targetWorkspace;
 IName targetWorkspaceName = targetDataset.getFullName();
 IWorkspaceName tWorkspaceName = (IWorkspaceName) targetWorkspaceName;
 IFeatureClassName tFeatClassname = new FeatureClassName();
 IDatasetName tDatasetName = (IDatasetName) tFeatClassname;
 tDatasetName.setName(shapeName);
 tDatasetName.setWorkspaceNameByRef(tWorkspaceName);
 IFieldChecker fieldChecker = new FieldChecker();
 IFields sFields = sfeatClass.getFields();
 fieldChecker.setInputWorkspace(sdataset.getWorkspace());
 fieldChecker.setValidateWorkspaceByRef(targetWorkspace);
 fieldChecker.validate(sFields, fieldErrors, null);
 if (fieldErrors != null) {
 System.out.println("Errors encountered during field validation");
 }
 String shapefieldName = sfeatClass.getShapeFieldName();
 int shapeFieldIndex = sfeatClass.findField(shapefieldName);
 IField shapefield = sFields.getField(shapeFieldIndex);
 IGeometryDef geomDef = shapefield.getGeometryDef();
 IClone geomDefClone = (IClone) geomDef;
 IClone targetGeomDefClone = geomDefClone.esri_clone();
 IGeometryDef tGeomDef = (IGeometryDef) targetGeomDefClone;
 IFeatureDataConverter2 featDataConverter = (IFeatureDataConverter2) new FeatureDataConverter();
 invalidObjects = featDataConverter.convertFeatureClass(
 sdatasetName,
 null,
 sSelectionSet,
 null,
 tFeatClassname,
 tGeomDef,
 null,
 "",
 1000, 0);
 return true;
 } catch (IOException | Casting.CastException e) {
 e.printStackTrace();
 }
 return false;
}
}