Examples of DownloadStream

com.vaadin.server.DownloadStream
Downloadable stream.
Note that the methods in a DownloadStream are called without locking the session to prevent locking the session during long file downloads. If your DownloadStream uses anything from the session, you must handle the locking.
@author Vaadin Ltd. @since 3.0
com.vaadin.terminal.DownloadStream
Downloadable stream. @author IT Mill Ltd. @version 6.7.1 @since 3.0

Examples of com.vaadin.terminal.DownloadStream

     * @return A {@code DownloadStream} that one of the URI handlers returned,
     *         null if no {@code DownloadStream} was returned.
     */
    public DownloadStream handleURI(URL context, String relativeUri) {


        DownloadStream result = null;
        if (uriHandlerList != null) {
            Object[] handlers;
            synchronized (uriHandlerList) {
                handlers = uriHandlerList.toArray();
            }
            for (int i = 0; i < handlers.length; i++) {
                final DownloadStream ds = ((URIHandler) handlers[i]).handleURI(
                        context, relativeUri);
                if (ds != null) {
                    if (result != null) {
                        throw new RuntimeException("handleURI for " + context
                                + " uri: '" + relativeUri

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Examples of com.vaadin.terminal.DownloadStream


        // Handles the uri
        try {
            URL context = application.getURL();
            if (window == application.getMainWindow()) {
                DownloadStream stream = null;
                /*
                 * Application.handleURI run first. Handles possible
                 * ApplicationResources.
                 */
                stream = application.handleURI(context, uri);

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Examples of com.vaadin.terminal.DownloadStream

                        .getReturnDataType()
                        : Constants.DEFAULT_DOWNLOAD_MIME_TYPE;
                String name = e.getReturnDataName() != null ? e
                        .getReturnDataName()
                        : Constants.DEFAULT_DOWNLOAD_FILENAME;
                return new DownloadStream(new ByteArrayInputStream(e
                        .getReturnData()), type, name);


            }
        } catch (Throwable t) {
            unhandledError("Unhandled exception", t);

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Examples of com.vaadin.terminal.DownloadStream


            // Handles the resource request
            final String key = this.context.getURLKey(context, relativeUri);
            final ApplicationResource resource = keyResourceMap.get(key);
            if (resource != null) {
                DownloadStream stream = resource.getStream();
                if (stream != null) {
                    stream.setCacheTime(resource.getCacheTime());
                    return stream;
                } else {
                    return null;
                }
            } else {

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Examples of com.vaadin.terminal.DownloadStream


    private boolean handleURI(PortletCommunicationManager applicationManager,
            Window window, ResourceRequest request, ResourceResponse response)
            throws IOException {
        // Handles the URI
        DownloadStream download = applicationManager.handleURI(window, request,
                response, this);


        // A download request
        if (download != null) {
            // Client downloads an resource

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Examples of com.vaadin.terminal.DownloadStream


        // Handles the uri
        try {
            URL context = application.getURL();
            if (window == application.getMainWindow()) {
                DownloadStream stream = null;
                /*
                 * Application.handleURI run first. Handles possible
                 * ApplicationResources.
                 */
                stream = application.handleURI(context, uri);

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Examples of com.vaadin.terminal.DownloadStream

     * @return A {@code DownloadStream} that one of the URI handlers returned,
     *         null if no {@code DownloadStream} was returned.
     */
    public DownloadStream handleURI(URL context, String relativeUri) {


        DownloadStream result = null;
        if (uriHandlerList != null) {
            Object[] handlers;
            synchronized (uriHandlerList) {
                handlers = uriHandlerList.toArray();
            }
            for (int i = 0; i < handlers.length; i++) {
                final DownloadStream ds = ((URIHandler) handlers[i]).handleURI(
                        context, relativeUri);
                if (ds != null) {
                    if (result != null) {
                        throw new RuntimeException("handleURI for " + context
                                + " uri: '" + relativeUri

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Examples of com.vaadin.terminal.DownloadStream

     */
    protected boolean handleURI(CommunicationManager applicationManager,
            Window window, HttpServletRequest request,
            HttpServletResponse response) throws IOException {
        // Handles the URI
        DownloadStream download = applicationManager.handleURI(window, request,
                response, this);


        // A download request
        if (download != null) {
            // Client downloads an resource

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Examples of com.vaadin.terminal.DownloadStream


            // Handles the resource request
            final String key = this.context.getURLKey(context, relativeUri);
            final ApplicationResource resource = keyResourceMap.get(key);
            if (resource != null) {
                DownloadStream stream = resource.getStream();
                if (stream != null) {
                    stream.setCacheTime(resource.getCacheTime());
                    return stream;
                } else {
                    return null;
                }
            } else {

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Examples of com.vaadin.terminal.DownloadStream

     */
    protected boolean handleURI(CommunicationManager applicationManager,
            Window window, HttpServletRequest request,
            HttpServletResponse response) throws IOException {
        // Handles the URI
        DownloadStream download = applicationManager.handleURI(window, request,
                response, this);


        // A download request
        if (download != null) {
            // Client downloads an resource

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