bundles/org.simantics.fileimport.ui/src/org/simantics/fileimport/ui/ImportFileHandler.java

   1
   2 package org.simantics.fileimport.ui;
   3
   4 import java.nio.file.Paths;
   5 import java.util.Map;
   6 import java.util.Optional;
   7 import java.util.function.Consumer;
   8
   9 import javax.inject.Named;
  10
  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.swt.SWT;
  15 import org.eclipse.swt.widgets.FileDialog;
  16 import org.eclipse.swt.widgets.Shell;
  17 import org.simantics.fileimport.FileImportService;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 public class ImportFileHandler {
  22
  23     private static final Logger LOGGER = LoggerFactory.getLogger(ImportFileHandler.class);
  24
  25     @CanExecute
  26     public boolean canExecute() {
  27         return !FileImportService.supportedExtensionsWithFilters().isEmpty();
  28     }
  29
  30     @Execute
  31     public void execute(@Named(IServiceConstants.ACTIVE_SHELL) Shell shell) {
  32
  33         Map<String, String> extensions = FileImportService.supportedExtensionsWithFilters();
  34         String[] filterExtensions = (String[]) extensions.keySet().toArray(new String[extensions.keySet().size()]);
  35         String[] filterNames = (String[]) extensions.values().toArray(new String[extensions.values().size()]);
  36
  37         // Sanity check
  38         for (int i = 0; i < filterExtensions.length; i++) {
  39             String extension = filterExtensions[i];
  40             if (!extension.startsWith("*.")) {
  41                 System.err.println("Invalid extension filter provied: " + extension);
  42             }
  43         }
  44
  45         FileDialog dialog = new FileDialog(shell, SWT.OPEN);
  46         dialog.setText("Choose File");
  47         dialog.setFilterExtensions(filterExtensions);
  48         dialog.setFilterNames(filterNames);
  49         final String fileName = dialog.open();
  50         if (fileName == null)
  51             return;
  52
  53         FileImportService.performFileImport(Paths.get(fileName), Optional.of((Consumer<Throwable>) t -> {
  54             LOGGER.error("Could not import file " + fileName, t);
  55         }));
  56     }
  57 }