Example usage for com.vaadin.v7.data Property getType

Introduction

In this page you can find the example usage for com.vaadin.v7.data Property getType.

Prototype

public Class<? extends T> getType();

Source Link

Document

Returns the type of the Property.

Usage

From source file:de.symeda.sormas.ui.utils.V7GridExportStreamResource.java

License:Open Source License

public V7GridExportStreamResource(Indexed container, List<Column> gridColumns, String tempFilePrefix,
        String filename, String... ignoredPropertyIds) {
    super(new StreamSource() {
        @Override/*from   ww w  . j a v a 2  s.c o m*/
        public InputStream getStream() {
            List<String> ignoredPropertyIdsList = Arrays.asList(ignoredPropertyIds);
            List<Column> columns = new ArrayList<>(gridColumns);
            columns.removeIf(c -> c.isHidden());
            columns.removeIf(c -> ignoredPropertyIdsList.contains(c.getPropertyId()));
            Collection<?> itemIds = container.getItemIds();

            try (ByteArrayOutputStream byteStream = new ByteArrayOutputStream()) {
                try (CSVWriter writer = CSVUtils.createCSVWriter(
                        new OutputStreamWriter(byteStream, StandardCharsets.UTF_8.name()),
                        FacadeProvider.getConfigFacade().getCsvSeparator())) {

                    List<String> headerRow = new ArrayList<>();
                    columns.forEach(c -> {
                        headerRow.add(c.getHeaderCaption());
                    });
                    writer.writeNext(headerRow.toArray(new String[headerRow.size()]));

                    itemIds.forEach(i -> {
                        List<String> row = new ArrayList<>();
                        columns.forEach(c -> {
                            Property<?> property = container.getItem(i).getItemProperty(c.getPropertyId());
                            if (property.getValue() != null) {
                                if (property.getType() == Date.class) {
                                    row.add(DateHelper.formatLocalDateTime((Date) property.getValue()));
                                } else if (property.getType() == Boolean.class) {
                                    if ((Boolean) property.getValue() == true) {
                                        row.add(I18nProperties.getEnumCaption(YesNoUnknown.YES));
                                    } else
                                        row.add(I18nProperties.getEnumCaption(YesNoUnknown.NO));
                                } else {
                                    row.add(property.getValue().toString());
                                }
                            } else {
                                row.add("");
                            }
                        });

                        writer.writeNext(row.toArray(new String[row.size()]));
                    });

                    writer.flush();
                }
                return new BufferedInputStream(new ByteArrayInputStream(byteStream.toByteArray()));
            } catch (IOException e) {
                // TODO This currently requires the user to click the "Export" button again or reload the page as the UI
                // is not automatically updated; this should be changed once Vaadin push is enabled (see #516)
                new Notification(I18nProperties.getString(Strings.headingExportFailed),
                        I18nProperties.getString(Strings.messageExportFailed), Type.ERROR_MESSAGE, false)
                                .show(Page.getCurrent());
                return null;
            }
        }
    }, filename);
    setMIMEType("text/csv");
    setCacheTime(0);
}

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