Caricamento flusso di byte su Google Drive tramite flusso di input

Question

Ho contenuto multimediale come in flusso di byte e sto tentando di caricare tale flusso in Google Drive.

Codice:

private static String writeToGoogleDrive(Drive service, String title, 
     String description, String parentId, String mimeType, 
     final byte[] filename) throws IOException { 
    String URL=""; 
    File body = new File(); 
    body.setTitle(title); 
    body.setDescription(description); 
    body.setMimeType(mimeType); 




    if (parentId != null && parentId.length() > 0) { 
     body.setParents(Arrays.asList(new ParentReference().setId(parentId))); 
    } 
    try { 

    File file= service.files().insert(body, new AbstractInputStreamContent("") { 

      @Override 
      public boolean retrySupported() { 
       // TODO Auto-generated method stub 
       return false; 
      } 

      @Override 
      public long getLength() throws IOException { 
       // TODO Auto-generated method stub 
       System.out.println("the value of the length of the file is "+filename.length); 
       return filename.length; 
      } 

      @Override 
      public InputStream getInputStream() throws IOException { 
       // TODO Auto-generated method stub 
       return new ByteArrayInputStream(filename); 
      } 

     }).execute(); 

Eccezione: si dice proprio nulla, ma io non so cosa (che) null è.

Answer 1

si può provare qualcosa di simile:

file = service.files().insert(body, new InputStreamContent(mimeType, 
new ByteArrayInputStream(filename))).execute();