Example usage for com.vaadin.server StreamResource StreamResource

Introduction

In this page you can find the example usage for com.vaadin.server StreamResource StreamResource.

Prototype

public StreamResource(StreamSource streamSource, String filename)

Source Link

Document

Creates a new stream resource for downloading from stream.

Usage

From source file:org.vaadin.gridfiledownloader.GridFileDownloader.java

License:Apache License

/**
 * FileDownloader extension that adds a download behaviour to the given
 * column of the Grid. Note that if the order or count of the columns or
 * selection mode change you need to call
 * {@link #recalculateDownloadColumn()} explicitly.
 *
 * @param grid//from   w  ww  . jav  a  2  s  . com
 * @param downloadPropertyId
 * @param gridStreamResource
 */
public GridFileDownloader(Grid grid, Object downloadPropertyId, GridStreamResource gridStreamResource) {
    super(new StreamResource(gridStreamResource, ""));
    assert gridStreamResource != null : "The given on-demand stream resource may never be null!";
    assert grid != null : "The given grid may never be null!";

    this.gridStreamResource = gridStreamResource;
    registerRpc(rpc);
    extend(grid);
    if (downloadPropertyId == null) {
        addDownloadColumn();
    } else {
        setDownloadColumn(downloadPropertyId);
    }
    grid.setCellStyleGenerator(new Grid.CellStyleGenerator() {

        @Override
        public String getStyle(Grid.CellReference cellReference) {
            if (GridFileDownloader.this.downloadPropertyId.equals(cellReference.getPropertyId())) {
                return "gridfiledownloader-downloadcolumn";
            }
            return null;
        }
    });
}

From source file:org.vaadin.presentation.views.NewsView.java

private Resource getRes(TagUser customer) {
    StreamResource.StreamSource ss = new StreamResource.StreamSource() {

        /**//  www.j  a  v  a  2  s .c  om
         *
         */
        private static final long serialVersionUID = 1L;

        @Override
        public InputStream getStream() {
            return new ByteArrayInputStream(customer.getPhoto());
        }
    };

    Resource res = new StreamResource(ss, "image" + UUID.randomUUID().toString());
    return res;
}

From source file:pdf.CoverLetterUtility.java

License:Apache License

public StreamResource getStreamResource() {
    return new StreamResource(new StreamResource.StreamSource() {
        @Override// w  w  w. j av a 2s  . c  o m
        public InputStream getStream() {
            // Here we return the pdf contents as a byte-array
            return new ByteArrayInputStream(baos.toByteArray());
        }
    }, "coverLetter_" + userId + "_" + language + ".pdf");
}

From source file:pdf.PdfUtility.java

public StreamResource getStreamResource() {
    return new StreamResource(new StreamResource.StreamSource() {
        @Override//  w  ww . j  ava  2  s .co m
        public InputStream getStream() {
            // Here we return the pdf contents as a byte-array
            return new ByteArrayInputStream(baos.toByteArray());
        }
    }, filename);
}

From source file:pl.exsio.ca.module.terrain.evidence.FilesDataTable.java

License:Open Source License

protected void addDownloadButtonColumn() {
    dataComponent.addGeneratedColumn("", new Table.ColumnGenerator() {

        @Override/*from  ww w  . j  av  a2s .  c  o m*/
        public Component generateCell(final Table source, final Object itemId, final Object columnId) {

            final Button download = new Button("", FontAwesome.DOWNLOAD);
            final TerrainFile terrainFile = ((EntityItem<TerrainFile>) dataComponent.getItem(itemId))
                    .getEntity();
            Resource res = new StreamResource(new StreamSource() {

                @Override
                public InputStream getStream() {
                    return new ByteArrayInputStream(terrainFile.getData());
                }
            }, terrainFile.getName());
            FileDownloader fd = new FileDownloader(res);
            fd.extend(download);
            download.setImmediate(true);
            download.setStyleName("link");
            return download;
        }
    });
}

From source file:probe.com.view.body.quantdatasetsoverview.diseasegroupsfilters.ComparisonsSelectionOverviewBubbleChart.java

private StreamResource createResource() {
    return new StreamResource(new StreamSource() {
        @Override//  w  w w  .ja  v a  2s .c o m
        @SuppressWarnings("CallToPrintStackTrace")
        public InputStream getStream() {
            try {
                byte[] pdfFile = CSFPR_Handler.exportBubbleChartAsPdf(chart,
                        "bubblechart_comparisons_selection.pdf", "Overview",
                        (int) chartLayoutContainer.getWidth(), (int) chartLayoutContainer.getHeight());
                return new ByteArrayInputStream(pdfFile);
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }

        }
    }, "bubblechart_comparisons_selection.pdf");
}

From source file:probe.com.view.body.quantdatasetsoverview.diseasegroupsfilters.interactivepiechartfilters.StudiesPieChartFiltersContainerLayout.java

private StreamResource createResource(final CSFPRHandler handler) {
    return new StreamResource(new StreamResource.StreamSource() {
        @Override//from www .j av a  2 s .  c o  m
        @SuppressWarnings("CallToPrintStackTrace")
        public InputStream getStream() {

            //                BufferedImage bi = chart.createBufferedImage(width, height, chartRenderingInfo);
            try {

                byte[] pdfFile = handler.exportStudiesInformationPieCharts(chartSet, "piechart_filters.pdf",
                        "Datasets");
                return new ByteArrayInputStream(pdfFile);
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }

        }
    }, "piechart_filters.pdf");
}

From source file:roart.client.MyVaadinUI.java

void addListTable(VerticalLayout ts, List<ResultItem> strarr) {
    if (strarr.size() <= 1) {
        return;/*  w  w w  .  j a va  2  s.c  om*/
    }

    SearchDisplay display = SearchService.getSearchDisplay(getCurrent());
    boolean dodownload = (boolean) getSession().getAttribute("download");

    Table table = new Table("Table");
    table.setWidth("90%");
    int columns = strarr.get(0).get().size();
    for (int i = 0; i < strarr.size(); i++) {
        if (strarr.get(i).get().size() != columns) {
            System.out.println("column differs " + columns + " found " + strarr.get(i).get().size());
            break;
        }
    }
    for (int i = 0; i < columns; i++) {
        if (display.highlightmlt && i == IndexFiles.HIGHLIGHTMLTCOLUMN
                && strarr.get(0).get().get(IndexFiles.HIGHLIGHTMLTCOLUMN).equals("Highlight and similar")) {
            table.addContainerProperty(strarr.get(0).get().get(i), Button.class, null);
            continue;
        }
        table.addContainerProperty(strarr.get(0).get().get(i), String.class, null);
    }
    if (dodownload) {
        if (columns > IndexFiles.FILENAMECOLUMN
                && strarr.get(0).get().get(IndexFiles.FILENAMECOLUMN).equals("Filename")) {
            table.addGeneratedColumn("Download", new ColumnGenerator() {
                @Override
                public Object generateCell(Table source, Object itemId, Object columnId) {
                    String nodename = (String) source.getItem(itemId).getItemProperty("Node").getValue();
                    String filename = (String) source.getItem(itemId).getItemProperty("Filename").getValue();
                    if (nodename != null && !nodename.equals(ControlService.nodename)) {
                        return null;
                    }
                    if (filename == null) {
                        return null;
                    }
                    if (false) {
                        return null;
                    }
                    final FileObject fo = FileSystemDao.get(filename);
                    if (filename.startsWith(FileSystemDao.FILE) || filename.startsWith(FileSystemDao.HDFS)) {
                        filename = filename.substring(5);
                    }
                    int i = filename.lastIndexOf("/");
                    String fn = filename.substring(i + 1);
                    StreamResource resource = new StreamResource(new StreamSource() {
                        @Override
                        public InputStream getStream() {
                            try {
                                return FileSystemDao.getInputStream(fo);
                            } catch (Exception e) {
                                log.error(Constants.EXCEPTION, e);
                                return null;
                            }
                        }
                    }, fn);
                    //FileResource resource = new FileResource(new File(filename));
                    Button button = new Button("Download");
                    button.setStyleName(BaseTheme.BUTTON_LINK);
                    FileDownloader downloader = new FileDownloader(resource);
                    downloader.extend(button);
                    return button;
                }
            });
        }
    }
    for (int i = 1; i < strarr.size(); i++) {
        ResultItem str = strarr.get(i);
        if (display.highlightmlt && columns > IndexFiles.HIGHLIGHTMLTCOLUMN
                && strarr.get(0).get().get(IndexFiles.HIGHLIGHTMLTCOLUMN).equals("Highlight and similar")) {
            String text = (String) str.get().get(IndexFiles.HIGHLIGHTMLTCOLUMN);
            if (text != null) {
                String md5 = (String) str.get().get(1);
                str.get().set(IndexFiles.HIGHLIGHTMLTCOLUMN, getSimilar(text, md5));
            }
        }
        table.addItem(str.getarr(), i);
    }
    //table.setPageLength(table.size());
    ts.addComponent(table);
}

From source file:sk.stefan.mvps.model.serviceImpl.DocumentServiceImpl.java

@Override
public Resource getDocumentResource(Document document) {
    StreamResource.StreamSource source;
    StreamResource resource;// ww w.j  a  v a  2s.  c  o  m

    source = (StreamResource.StreamSource) () -> {
        InputStream inputStream = new ByteArrayInputStream(document.getDocument());
        return inputStream;
    };

    resource = new StreamResource(source, document.getFile_name());
    return resource;
}

From source file:ui.helper.ImageDropBox.java

License:Apache License

private void showFile(final String name, final String type, final ByteArrayOutputStream bas) {
    // resource for serving the file contents
    final StreamResource.StreamSource streamSource = new StreamResource.StreamSource() {
        @Override/*from w  w  w .j  av  a  2 s .c  o  m*/
        public InputStream getStream() {
            if (bas != null) {
                final byte[] byteArray = bas.toByteArray();
                return new ByteArrayInputStream(byteArray);
            }
            return null;
        }
    };
    final StreamResource resource = new StreamResource(streamSource, name);

    // show the file contents - images only for now
    final Embedded embedded = new Embedded("", resource);
    showComponent(embedded, name);
}