How to use

ifPresentOrElse

method

in

java.util.Optional

public void saveWorkspace() {
  RememberingLatestFileChooserWrapper fileChooser = FileChoosers.getFileChooser(FileType.JSON,
      DefaultI18nContext.getInstance().i18n("Select the workspace file to save"));
  latestWorkspace.ifPresentOrElse(f -> {
    fileChooser.setInitialDirectory(f.getParentFile());
    fileChooser.setInitialFileName(f.getName());
  }, () -> fileChooser.setInitialFileName("PDFsam_workspace.json"));
  File chosenFile = fileChooser.showDialog(OpenType.SAVE);
  if (chosenFile != null) {
    latestWorkspace = Optional.of(chosenFile);
    eventStudio().broadcast(new SaveWorkspaceEvent(chosenFile));
  }
}

private void generateAttributeAndAccessor(String attribute) {
  final TypeName typeName = TypeName.get(classDescription.getMirrorWithDocumentation(attribute)
                              .getMirror());
  classBuilder.addField(FieldSpec.builder(typeName, attribute, Modifier.PRIVATE, Modifier.FINAL)
                  .build());
  constructorBuilder.addParameter(typeName, attribute)
           .addStatement("this.$1L = $1L", attribute);
  classDescription.getMirrorWithDocumentation(attribute)
          .getJavadoc()
          .filter(s -> !s.isEmpty())
          .ifPresentOrElse(s -> constructorBuilder.addJavadoc("@param $L $L\n", attribute, s),
              () -> constructorBuilder.addJavadoc(MISSING_DOC, attribute));
  classBuilder.addMethod(createAccessor(attribute, typeName));
}