Helper function which will take an open HttpURLConnection object and read the resulting input stream into a String.

readHttpInputStreamToString

private String TAG = "MyAwesomeApp";
/**
 * @param connection object; note: before calling this function, ensure that the connection is already be open, 
 *   and any writes to the connection's output stream should have already been completed.
 * @return String containing the body of the connection response or null if the input stream could not be read correctly
 */
private String readHttpInputStreamToString(HttpURLConnection connection) {
	String result = null;
	StringBuffer sb = new StringBuffer();
	InputStream is = null;
	
	try {
		is = new BufferedInputStream(connection.getInputStream());
		BufferedReader br = new BufferedReader(new InputStreamReader(is));
		String inputLine = "";
		while ((inputLine = br.readLine()) != null) {
			sb.append(inputLine);
		}
		result = sb.toString();
	}
	catch (Exception e) {
		Log.i(TAG, "Error reading InputStream");
		result = null;
	}
	finally {
		if (is != null) {
			try { 
				is.close(); 
			} 
			catch (IOException e) {
				Log.i(TAG, "Error closing InputStream");
			}
		}	
	}

	return result;
}