Java RangeOutputStream类代码示例

import net.sourceforge.subsonic.io.RangeOutputStream; //导入依赖的package包/类
/**
 * Downloads a single file.
 *
 *
 * @param response The HTTP response.
 * @param status   The download status.
 * @param file     The file to download.
 * @param range    The byte range, may be <code>null</code>.
 * @throws IOException If an I/O error occurs.
 */
private void downloadFile(HttpServletResponse response, TransferStatus status, File file, HttpRange range) throws IOException {
    LOG.info("Starting to download '" + FileUtil.getShortPath(file) + "' to " + status.getPlayer());
    status.setFile(file);

    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + encodeAsRFC5987(file.getName()));
    if (range == null) {
        Util.setContentLength(response, file.length());
    }

    copyFileToStream(file, RangeOutputStream.wrap(response.getOutputStream(), range), status, range);
    LOG.info("Downloaded '" + FileUtil.getShortPath(file) + "' to " + status.getPlayer());
}
 

import net.sourceforge.subsonic.io.RangeOutputStream; //导入依赖的package包/类
/**
 * Downloads the given files.  The files are packed together in an
 * uncompressed zip-file.
 *
 *
 * @param response    The HTTP response.
 * @param status      The download status.
 * @param files       The files to download.
 * @param indexes     Only download songs at these indexes. May be <code>null</code>.
 * @param coverArtFile The cover art file to include, may be {@code null}.
 *@param range       The byte range, may be <code>null</code>.
 * @param zipFileName The name of the resulting zip file.   @throws IOException If an I/O error occurs.
 */
private void downloadFiles(HttpServletResponse response, TransferStatus status, List<MediaFile> files, int[] indexes, File coverArtFile, HttpRange range, String zipFileName) throws IOException {
    if (indexes != null && indexes.length == 1) {
        downloadFile(response, status, files.get(indexes[0]).getFile(), range);
        return;
    }

    LOG.info("Starting to download '" + zipFileName + "' to " + status.getPlayer());
    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + encodeAsRFC5987(zipFileName));

    ZipOutputStream out = new ZipOutputStream(RangeOutputStream.wrap(response.getOutputStream(), range));
    out.setMethod(ZipOutputStream.STORED);  // No compression.

    List<MediaFile> filesToDownload = new ArrayList<MediaFile>();
    if (indexes == null) {
        filesToDownload.addAll(files);
    } else {
        for (int index : indexes) {
            try {
                filesToDownload.add(files.get(index));
            } catch (IndexOutOfBoundsException x) { /* Ignored */}
        }
    }

    for (MediaFile mediaFile : filesToDownload) {
        zip(out, mediaFile.getParentFile(), mediaFile.getFile(), status, range);
    }
    if (coverArtFile != null && coverArtFile.exists()) {
        zip(out, coverArtFile.getParentFile(), coverArtFile, status, range);
    }


    out.close();
    LOG.info("Downloaded '" + zipFileName + "' to " + status.getPlayer());
}
 

import net.sourceforge.subsonic.io.RangeOutputStream; //导入依赖的package包/类
/**
 * Downloads a single file.
 *
 * @param response The HTTP response.
 * @param status   The download status.
 * @param file     The file to download.
 * @param range    The byte range, may be <code>null</code>.
 * @throws IOException If an I/O error occurs.
 */
private void downloadFile(HttpServletResponse response, TransferStatus status, File file, LongRange range) throws IOException {
    LOG.info("Starting to download '" + FileUtil.getShortPath(file) + "' to " + status.getPlayer());
    status.setFile(file);

    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + encodeAsRFC5987(file.getName()));
    if (range == null) {
        Util.setContentLength(response, file.length());
    }

    copyFileToStream(file, RangeOutputStream.wrap(response.getOutputStream(), range), status, range);
    LOG.info("Downloaded '" + FileUtil.getShortPath(file) + "' to " + status.getPlayer());
}
 

import net.sourceforge.subsonic.io.RangeOutputStream; //导入依赖的package包/类
/**
 * Downloads all files in a directory (including sub-directories). The files are packed together in an
 * uncompressed zip-file.
 *
 * @param response The HTTP response.
 * @param status   The download status.
 * @param file     The file to download.
 * @param range    The byte range, may be <code>null</code>.
 * @throws IOException If an I/O error occurs.
 */
private void downloadDirectory(HttpServletResponse response, TransferStatus status, File file, LongRange range) throws IOException {
    String zipFileName = file.getName() + ".zip";
    LOG.info("Starting to download '" + zipFileName + "' to " + status.getPlayer());
    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''"+ encodeAsRFC5987(zipFileName));

    ZipOutputStream out = new ZipOutputStream(RangeOutputStream.wrap(response.getOutputStream(), range));
    out.setMethod(ZipOutputStream.STORED);  // No compression.

    zip(out, file.getParentFile(), file, status, range);
    out.close();
    LOG.info("Downloaded '" + zipFileName + "' to " + status.getPlayer());
}
 

import net.sourceforge.subsonic.io.RangeOutputStream; //导入依赖的package包/类
/**
 * Downloads the given files.  The files are packed together in an
 * uncompressed zip-file.
 *
 * @param response    The HTTP response.
 * @param status      The download status.
 * @param files       The files to download.
 * @param indexes     Only download songs at these indexes. May be <code>null</code>.
 * @param range       The byte range, may be <code>null</code>.
 * @param zipFileName The name of the resulting zip file.
 * @throws IOException If an I/O error occurs.
 */
private void downloadFiles(HttpServletResponse response, TransferStatus status, List<MediaFile> files, int[] indexes, LongRange range, String zipFileName) throws IOException {
    if (indexes != null && indexes.length == 1) {
        downloadFile(response, status, files.get(indexes[0]).getFile(), range);
        return;
    }

    LOG.info("Starting to download '" + zipFileName + "' to " + status.getPlayer());
    response.setContentType("application/x-download");
    response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + encodeAsRFC5987(zipFileName));

    ZipOutputStream out = new ZipOutputStream(RangeOutputStream.wrap(response.getOutputStream(), range));
    out.setMethod(ZipOutputStream.STORED);  // No compression.

    List<MediaFile> filesToDownload = new ArrayList<MediaFile>();
    if (indexes == null) {
        filesToDownload.addAll(files);
    } else {
        for (int index : indexes) {
            try {
                filesToDownload.add(files.get(index));
            } catch (IndexOutOfBoundsException x) { /* Ignored */}
        }
    }

    for (MediaFile mediaFile : filesToDownload) {
        zip(out, mediaFile.getParentFile(), mediaFile.getFile(), status, range);
    }

    out.close();
    LOG.info("Downloaded '" + zipFileName + "' to " + status.getPlayer());
}