1 package org.simantics.fileimport.ui;
3 import java.nio.file.Paths;
5 import java.util.Optional;
6 import java.util.function.Consumer;
8 import javax.inject.Named;
10 import org.eclipse.core.runtime.IAdaptable;
11 import org.eclipse.e4.core.di.annotations.CanExecute;
12 import org.eclipse.e4.core.di.annotations.Execute;
13 import org.eclipse.e4.ui.services.IServiceConstants;
14 import org.eclipse.jface.viewers.ISelection;
15 import org.eclipse.jface.viewers.StructuredSelection;
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.widgets.FileDialog;
18 import org.eclipse.swt.widgets.Shell;
19 import org.simantics.db.Resource;
20 import org.simantics.fileimport.FileImportService;
21 import org.slf4j.Logger;
22 import org.slf4j.LoggerFactory;
24 public class ImportFileHandler {
26 private static final Logger LOGGER = LoggerFactory.getLogger(ImportFileHandler.class);
29 public boolean canExecute() {
30 return !FileImportService.supportedExtensionsWithFilters().isEmpty();
34 public void execute(@Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection,
35 @Named(IServiceConstants.ACTIVE_SHELL) Shell shell) {
36 Map<String, String> extensions = FileImportService.supportedExtensionsWithFilters();
37 String[] filterExtensions = (String[]) extensions.keySet().toArray(new String[extensions.keySet().size()]);
38 String[] filterNames = (String[]) extensions.values().toArray(new String[extensions.values().size()]);
41 for (int i = 0; i < filterExtensions.length; i++) {
42 String extension = filterExtensions[i];
43 if (!extension.startsWith("*.")) { //$NON-NLS-1$
44 System.err.println("Invalid extension filter provied: " + extension); //$NON-NLS-1$
48 FileDialog dialog = new FileDialog(shell, SWT.OPEN);
49 dialog.setText(Messages.ImportFileHandler_ChooseFile);
50 dialog.setFilterExtensions(filterExtensions);
51 dialog.setFilterNames(filterNames);
52 final String fileName = dialog.open();
56 Resource selectedResource = null;
58 if(selection instanceof StructuredSelection) {
59 StructuredSelection structuredSelection = (StructuredSelection)selection;
60 Object elem = structuredSelection.getFirstElement();
61 IAdaptable a = (IAdaptable)elem;
62 selectedResource = a.getAdapter(Resource.class);
64 } catch(NullPointerException | ClassCastException npe) {
65 LOGGER.warn("Failed to find selection, passing null to file importer", npe); //$NON-NLS-1$
68 FileImportService.performFileImport(Paths.get(fileName), Optional.of(selectedResource), Optional.of((Consumer<Throwable>) t -> {
69 LOGGER.error("Could not import file " + fileName, t); //$NON-NLS-1$