List of usage examples for org.apache.commons.codec_1_4.binary Base64OutputStream write
public void write(byte b[], int offset, int len) throws IOException
len
bytes from the specified b
array starting at offset
to this output stream. From source file:com.maass.android.imgur_uploader.ImgurUpload.java
/** * This method uploads an image from the given uri. It does the uploading in * small chunks to make sure it doesn't over run the memory. * //from w w w .j av a 2 s. com * @param uri * image location * @return map containing data from interaction */ private String readPictureDataAndUpload(final Uri uri) { Log.i(this.getClass().getName(), "in readPictureDataAndUpload(Uri)"); try { final AssetFileDescriptor assetFileDescriptor = getContentResolver().openAssetFileDescriptor(uri, "r"); final int totalFileLength = (int) assetFileDescriptor.getLength(); assetFileDescriptor.close(); // Create custom progress notification mProgressNotification = new Notification(R.drawable.icon, getString(R.string.upload_in_progress), System.currentTimeMillis()); // set as ongoing mProgressNotification.flags |= Notification.FLAG_ONGOING_EVENT; // set custom view to notification mProgressNotification.contentView = generateProgressNotificationView(0, totalFileLength); //empty intent for the notification final Intent progressIntent = new Intent(); final PendingIntent contentIntent = PendingIntent.getActivity(this, 0, progressIntent, 0); mProgressNotification.contentIntent = contentIntent; // add notification to manager mNotificationManager.notify(NOTIFICATION_ID, mProgressNotification); final InputStream inputStream = getContentResolver().openInputStream(uri); final String boundaryString = "Z." + Long.toHexString(System.currentTimeMillis()) + Long.toHexString((new Random()).nextLong()); final String boundary = "--" + boundaryString; final HttpURLConnection conn = (HttpURLConnection) (new URL("http://imgur.com/api/upload.json")) .openConnection(); conn.setRequestMethod("POST"); conn.setRequestProperty("Content-type", "multipart/form-data; boundary=\"" + boundaryString + "\""); conn.setUseCaches(false); conn.setDoInput(true); conn.setDoOutput(true); conn.setChunkedStreamingMode(CHUNK_SIZE); final OutputStream hrout = conn.getOutputStream(); final PrintStream hout = new PrintStream(hrout); hout.println(boundary); hout.println("Content-Disposition: form-data; name=\"key\""); hout.println("Content-Type: text/plain"); hout.println(); hout.println(API_KEY); hout.println(boundary); hout.println("Content-Disposition: form-data; name=\"image\""); hout.println("Content-Transfer-Encoding: base64"); hout.println(); hout.flush(); { final Base64OutputStream bhout = new Base64OutputStream(hrout); final byte[] pictureData = new byte[READ_BUFFER_SIZE_BYTES]; int read = 0; int totalRead = 0; long lastLogTime = 0; while (read >= 0) { read = inputStream.read(pictureData); if (read > 0) { bhout.write(pictureData, 0, read); totalRead += read; if (lastLogTime < (System.currentTimeMillis() - PROGRESS_UPDATE_INTERVAL_MS)) { lastLogTime = System.currentTimeMillis(); Log.d(this.getClass().getName(), "Uploaded " + totalRead + " of " + totalFileLength + " bytes (" + (100 * totalRead) / totalFileLength + "%)"); //make a final version of the total read to make the handler happy final int totalReadFinal = totalRead; mHandler.post(new Runnable() { public void run() { mProgressNotification.contentView = generateProgressNotificationView( totalReadFinal, totalFileLength); mNotificationManager.notify(NOTIFICATION_ID, mProgressNotification); } }); } bhout.flush(); hrout.flush(); } } Log.d(this.getClass().getName(), "Finishing upload..."); // This close is absolutely necessary, this tells the // Base64OutputStream to finish writing the last of the data // (and including the padding). Without this line, it will miss // the last 4 chars in the output, missing up to 3 bytes in the // final output. bhout.close(); Log.d(this.getClass().getName(), "Upload complete..."); mProgressNotification.contentView.setProgressBar(R.id.UploadProgress, totalFileLength, totalRead, false); } hout.println(boundary); hout.flush(); hrout.close(); inputStream.close(); Log.d(this.getClass().getName(), "streams closed, " + "now waiting for response from server"); final BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); final StringBuilder rData = new StringBuilder(); String line; while ((line = reader.readLine()) != null) { rData.append(line).append('\n'); } return rData.toString(); } catch (final IOException e) { Log.e(this.getClass().getName(), "Upload failed", e); } return null; }