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.adho.dhconvalidator.ui.ConverterPanel.java

/** Provides a new FileDownloader with the conversion result. */
private void prepareForResultDownload() {
    downloadInfo.setVisible(true);//w  w w .  ja  va 2 s  .c om

    // detach the old file downloader
    if (currentFileDownloader != null) {
        currentFileDownloader.remove();
    }

    StreamResource resultStreamResource = new StreamResource(new StreamSource() {

        @Override
        public InputStream getStream() {
            return createResultStream();
        }
    }, filename.substring(0, filename.lastIndexOf('.')) + ".dhc");

    resultStreamResource.setCacheTime(0);

    currentFileDownloader = new FileDownloader(resultStreamResource);
    currentFileDownloader.extend(btDownloadResult);

    btDownloadResult.setVisible(true);
}

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From source file:org.adho.dhconvalidator.ui.DHConvalidatorExample.java

@Override
protected void init(VaadinRequest request) {
    try {/*from w w w  .  j av  a2 s.com*/
        Messages.setLocaleProvider(VaadinSessionLocaleProvider.INSTANCE);

        VerticalLayout content = new VerticalLayout();
        content.setMargin(true);
        content.setSpacing(true);

        setContent(content);

        HeaderPanel headerPanel = new HeaderPanel(null);
        headerPanel.getBackLink().setVisible(false);

        content.addComponent(headerPanel);

        // prepare downloader for input file
        Button btGetInputfile = new Button(Messages.getString("DHConvalidatorExample.btInputCaption"));
        content.addComponent(btGetInputfile);

        FileDownloader inputFileDownloader = new FileDownloader(new StreamResource(new StreamSource() {

            @Override
            public InputStream getStream() {
                return Thread.currentThread().getContextClassLoader().getResourceAsStream(
                        "/org/adho/dhconvalidator/conversion/example/1_Digital_Humanities.odt");
            }
        }, "1_Digital_Humanities.odt"));
        inputFileDownloader.extend(btGetInputfile);

        // prepare downloader for output file
        Button btGetOutputfile = new Button(
                Messages.getString("DHConvalidatorExample.btConversionResultCaption"));
        content.addComponent(btGetOutputfile);

        FileDownloader outputFileDownloader = new FileDownloader(new StreamResource(new StreamSource() {

            @Override
            public InputStream getStream() {
                return Thread.currentThread().getContextClassLoader().getResourceAsStream(
                        "/org/adho/dhconvalidator/conversion/example/1_Digital_Humanities.dhc");
            }
        }, "1_Digital_Humanities.dhc"));
        outputFileDownloader.extend(btGetOutputfile);

        // setup visual feedback
        Label preview = new Label("", ContentMode.HTML);
        preview.addStyleName("tei-preview");
        preview.setWidth("800px");

        content.addComponent(preview);
        content.setComponentAlignment(preview, Alignment.MIDDLE_CENTER);

        ByteArrayOutputStream buffer = new ByteArrayOutputStream();

        IOUtils.copy(Thread.currentThread().getContextClassLoader().getResourceAsStream(
                "/org/adho/dhconvalidator/conversion/example/1_Digital_Humanities.html"), buffer);

        preview.setValue(buffer.toString("UTF-8"));

        Page.getCurrent().setTitle(Messages.getString("DHConvalidatorExample.title"));
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:org.adho.dhconvalidator.ui.PaperSelectionPanel.java

/** Setup UI. */
private void initComponents() {
    Label info = new Label(Messages.getString("PaperSelectionPanel.hintMsg"), ContentMode.HTML);

    languages = new ComboBox(Messages.getString("PaperSelectionPanel.language"),
            Arrays.asList(SubmissionLanguage.values()));
    languages.setNullSelectionAllowed(false);
    languages.setValue(SubmissionLanguage
            .valueOf(PropertyKey.defaultSubmissionLanguage.getValue(SubmissionLanguage.ENGLISH.name())));

    paperTable = new Table(Messages.getString("PaperSelectionPanel.tableTitle"));
    paperTable.setSelectable(true);/*from  w  w w.  j  av a2  s . c  om*/
    paperTable.setMultiSelect(true);
    paperTable.setPageLength(4);
    paperTable.addContainerProperty("title", String.class, null);
    paperTable.setColumnHeader("title", Messages.getString("PaperSelectionPanel.titleColumnTitle"));
    paperTable.setWidth("100%");
    paperTable.setImmediate(true);

    btGenerate = new Button(Messages.getString("PaperSelectionPanel.generateButtonCaption"));
    StreamResource templateStreamResource = new StreamResource(new StreamSource() {
        @Override
        public InputStream getStream() {
            return createTemplates();
        }
    }, "your_personal_dh_templates.zip");

    templateStreamResource.setCacheTime(0);
    new FileDownloader(templateStreamResource).extend(btGenerate);

    addCenteredComponent(info);
    addCenteredComponent(languages);
    addCenteredComponent(paperTable);
    addCenteredComponent(btGenerate);

    postDownloadLabel = new Label(
            Messages.getString("PaperSelectionPanel.postDownloadInfo",
                    inputConverter.getTextEditorDescription(),
                    PropertyKey.base_url.getValue() + "popup/DHConvalidatorServices#!converter"),
            ContentMode.HTML);
    postDownloadLabel.addStyleName("postDownloadInfoRedAndBold");
    postDownloadLabel.setVisible(false);

    addCenteredComponent(postDownloadLabel);
}

---

From source file:org.apache.openaz.xacml.admin.components.PolicyEditor.java

License:Apache License

protected void initializeButtons() {
    ////from   w  w  w.j a v a  2s  . c om
    // The Save button
    //
    this.buttonSave.addClickListener(new ClickListener() {
        private static final long serialVersionUID = 1L;

        @Override
        public void buttonClick(ClickEvent event) {
            self.savePolicy();
        }
    });
    //
    // Attach a window opener to the View XML button
    //
    BrowserWindowOpener opener = new BrowserWindowOpener(new StreamResource(new StreamResource.StreamSource() {
        private static final long serialVersionUID = 1L;

        @Override
        public InputStream getStream() {
            try {
                if (logger.isDebugEnabled()) {
                    logger.debug("Setting view xml button to: " + self.file.getAbsolutePath());
                }
                return new FileInputStream(self.file);
            } catch (Exception e) {
                logger.error("Failed to open input stream " + self.file);
            }
            return null;
        }
    }, self.file.getName()));
    opener.setWindowName("_new");
    opener.extend(this.buttonViewXML);
}

---

From source file:org.apache.openaz.xacml.admin.components.PolicyEditor.java

License:Apache License

protected void initializeDownload() {
    ///*from w ww  . j  ava 2s  . com*/
    // Create a stream resource pointing to the file
    //
    StreamResource r = new StreamResource(new StreamResource.StreamSource() {
        private static final long serialVersionUID = 1L;

        @Override
        public InputStream getStream() {
            try {
                return new FileInputStream(self.file);
            } catch (Exception e) {
                logger.error("Failed to open input stream " + self.file);
            }
            return null;
        }
    }, self.file.getName());
    r.setCacheTime(-1);
    r.setMIMEType("application/xml");
    //
    // Extend a downloader to attach to the Export Button
    //
    FileDownloader downloader = new FileDownloader(r);
    downloader.extend(this.buttonExport);
}

---

From source file:org.apache.openaz.xacml.admin.util.OnDemandFileDownloader.java

License:Apache License

public OnDemandFileDownloader(OnDemandStreamResource resource) {
    super(new StreamResource(resource, ""));
    this.resource = resource;
    if (this.resource == null) {
        throw new NullPointerException("Can't send null resource");
    }/*from   w ww  .  j  av a  2  s .  c o  m*/
}

---

From source file:org.dussan.vaadin.dcharts.DCharts.java

License:Apache License

private StreamResource getChartResource() {
    return new StreamResource(new StreamSource() {
        private static final long serialVersionUID = -6463786579404065303L;

        @Override/*  www . j  a v  a2  s.c  o  m*/
        public InputStream getStream() {
            try {
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                ImageIO.write(getChartImage(), getChartImageFormat().getFormat(), bos);
                return new ByteArrayInputStream(bos.toByteArray());
            } catch (Exception e) {
                return new ByteArrayInputStream("".getBytes());
            }
        }
    }, getDownloadFilename() + getChartImageFormat().getFormatExtension());
}

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From source file:org.ikasan.dashboard.ui.mappingconfiguration.panel.MappingConfigurationPanel.java

License:BSD License

/**
 * Helper method to get the stream associated with the export of the file.
 * /* w  w w .  j  a  v  a 2s .  c  o  m*/
 * @return the StreamResource associated with the export.
 */
private StreamResource getMappingConfigurationValuesExportStream() {
    StreamResource.StreamSource source = new StreamResource.StreamSource() {

        public InputStream getStream() {
            ByteArrayOutputStream stream = null;
            try {
                stream = getMappingConfigurationValuesExport();
            } catch (IOException e) {
                e.printStackTrace();
            }
            InputStream input = new ByteArrayInputStream(stream.toByteArray());
            return input;

        }
    };
    StreamResource resource = new StreamResource(source, "mappingConfigurationExport.xml");
    return resource;
}

---

From source file:org.ikasan.dashboard.ui.mappingconfiguration.panel.MappingConfigurationPanel.java

License:BSD License

/**
 * Helper method to get the stream associated with the export of the file.
 * // www .ja  v a  2s  . com
 * @return the StreamResource associated with the export.
 */
private StreamResource getMappingConfigurationExportStream() {
    StreamResource.StreamSource source = new StreamResource.StreamSource() {

        public InputStream getStream() {
            ByteArrayOutputStream stream = null;
            try {
                stream = getMappingConfigurationExport();
            } catch (IOException e) {
                e.printStackTrace();
            }
            InputStream input = new ByteArrayInputStream(stream.toByteArray());
            return input;

        }
    };
    StreamResource resource = new StreamResource(source, "mappingConfigurationExport.xml");
    return resource;
}

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From source file:org.jumpmind.metl.ui.views.admin.LoggingPanel.java

License:Open Source License

private StreamResource getLogFileResource() {
    StreamSource ss = new StreamSource() {
        public InputStream getStream() {
            try {
                return new BufferedInputStream(new FileInputStream(logFile));
            } catch (FileNotFoundException e) {
                Notification note = new Notification("File Not Found",
                        "Could not find " + logFile.getName() + " to download");
                note.show(Page.getCurrent());
                return null;
            }//w w w .  ja v  a  2 s .  co m
        }
    };
    return new StreamResource(ss, logFile.getName());
}

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