Example usage for org.apache.commons.codec_1_4.binary Base64OutputStream close

Introduction

In this page you can find the example usage for org.apache.commons.codec_1_4.binary Base64OutputStream close.

Prototype

public void close() throws IOException 

Source Link

Document

Closes this output stream and releases any system resources associated with the stream.

Usage

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 ww. jav a 2 s  . c om*/
 * @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;
}

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