Read a segment of a file in Java / Android

Question

I\'m sure this might be a simple question, but unfortunately this is my first time using Java and working the Android SDK.

I am uploading files on Android using the

Answer 1

I was able to figure it out... just had to discover that there's a ByteArrayInputStream that would allow me to convert my byte[] buffer to an InputStream. From here on, I can now track which chunks failed and handle it. Thanks Konstantin for Here's my implementation:

    final int chunkSize = 512 * 1024; // 512 kB
    final long pieces = file.length() / chunkSize;
    int chunkId = 0;

    HttpPost request = new HttpPost(endpoint);

    BufferedInputStream stream = new BufferedInputStream(new FileInputStream(file));

    for (chunkId = 0; chunkId < pieces; chunkId++) {
        byte[] buffer = new byte[chunkSize];

        stream.skip(chunkId * chunkSize);
        stream.read(buffer);

        MultipartEntity entity = new MultipartEntity();
        entity.addPart("chunk_id", new StringBody(String.valueOf(chunkId)));
        request.setEntity(entity);
        ByteArrayInputStream arrayStream = new ByteArrayInputStream(buffer);

        entity.addPart("file_data", new InputStreamBody(arrayStream, filename));

        HttpClient client = app.getHttpClient();
        client.execute(request);
    }