Examples with DownloadException com.acgist.snail.context.exception.DownloadException used on opensource projects

Example 11 with DownloadException

use of com.acgist.snail.context.exception.DownloadException in project snail by acgist.

the class TorrentContext method loadTorrent.

/**
 * <p>种子文件加载</p>
 *
 * @param path 种子文件地址
 *
 * @return 种子信息
 *
 * @throws DownloadException 下载异常
 */
public static final Torrent loadTorrent(String path) throws DownloadException {
    final File file = new File(path);
    if (!file.exists()) {
        throw new DownloadException("不存在的种子文件");
    }
    try {
        final var bytes = Files.readAllBytes(Paths.get(file.getAbsolutePath()));
        final var decoder = BEncodeDecoder.newInstance(bytes).next();
        if (decoder.isEmpty()) {
            throw new DownloadException("种子文件格式错误");
        }
        final var torrent = Torrent.valueOf(decoder);
        // 直接转储原始信息：防止顺序不对导致种子Hash计算错误
        final var info = decoder.getMap(Torrent.ATTR_INFO);
        final var infoHash = InfoHash.newInstance(BEncodeEncoder.encodeMap(info));
        torrent.infoHash(infoHash);
        return torrent;
    } catch (NetException | IOException e) {
        throw new DownloadException("种子文件加载失败", e);
    }
}

Example 12 with DownloadException

use of com.acgist.snail.context.exception.DownloadException in project snail by acgist.

the class SingleFileDownloader method buildOutput.

/**
 * <p>新建{@linkplain #output 输出流}</p>
 * <p>通过判断任务已经下载大小验证是否支持断点续传</p>
 *
 * @throws DownloadException 下载异常
 */
protected void buildOutput() throws DownloadException {
    try {
        final long size = this.taskSession.downloadSize();
        final int bufferSize = DownloadConfig.getMemoryBufferByte(this.taskSession.getSize());
        OutputStream outputStream;
        if (size > 0L) {
            // 支持断点续传
            outputStream = new FileOutputStream(this.taskSession.getFile(), true);
        } else {
            // 不支持断点续传
            outputStream = new FileOutputStream(this.taskSession.getFile());
        }
        final BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream, bufferSize);
        this.output = Channels.newChannel(bufferedOutputStream);
    } catch (FileNotFoundException e) {
        throw new DownloadException("下载文件打开失败", e);
    }
}

Example 13 with DownloadException

use of com.acgist.snail.context.exception.DownloadException in project snail by acgist.

the class TsLinkerTest method testLink.

@Test
void testLink() throws DownloadException {
    final String name = "测试";
    final String filePath = "E:\\snail\\m3u8";
    final File parent = new File(filePath);
    final var links = List.of(parent.listFiles()).stream().map(file -> file.getAbsolutePath()).filter(// 排除生成文件：防止重复读写
    path -> !path.contains(name)).collect(Collectors.toList());
    Cipher cipher = null;
    // final var builder = M3u8Builder.newInstance(new File("E://snail/index.m3u8"), "https://www.acgist.com/a/b?v=1234");
    // cipher = builder.build().getCipher();
    final TsLinker linker = TsLinker.newInstance(name, filePath, cipher, links);
    linker.link();
    File file = Paths.get(filePath, "测试.ts").toFile();
    assertTrue(file.exists());
    FileUtils.delete(file);
}

Example 14 with DownloadException

use of com.acgist.snail.context.exception.DownloadException in project snail by acgist.

the class Protocol method buildTaskSession.

/**
 * <p>新建下载任务</p>
 *
 * @param url 下载链接
 *
 * @return 任务信息
 *
 * @throws DownloadException 下载异常
 */
public synchronized ITaskSession buildTaskSession(String url) throws DownloadException {
    this.url = url.strip();
    boolean success = true;
    try {
        this.buildTaskEntity();
        return TaskSession.newInstance(this.taskEntity);
    } catch (DownloadException e) {
        success = false;
        throw e;
    } catch (Exception e) {
        success = false;
        throw new DownloadException("下载失败", e);
    } finally {
        if (success) {
            this.success();
        }
        this.release(success);
    }
}