/* * Copyright 2014 Vitaly Litvak ([email protected]) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package su.litvak.chromecast.api.v2; import java.io.IOException; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; /** * Contains utility methods. */ final class Util { private Util() { } /** * Converts specified byte array in Big Endian to int. */ static int fromArray(byte[] payload) { return payload[0] << 24 | (payload[1] & 0xFF) << 16 | (payload[2] & 0xFF) << 8 | (payload[3] & 0xFF); } /** * Converts specified int to byte array in Big Endian. */ static byte[] toArray(int value) { return new byte[] { (byte) (value >> 24), (byte) (value >> 16), (byte) (value >> 8), (byte) value }; } static String getContentType(String url) { HttpURLConnection connection = null; try { connection = (HttpURLConnection) new URL(url).openConnection(); connection.connect(); return connection.getContentType(); } catch (IOException e) { } finally { if (connection != null) { connection.disconnect(); } } return null; } static String getMediaTitle(String url) { try { URL urlObj = new URL(url); String mediaTitle; String path = urlObj.getPath(); int lastIndexOfSlash = path.lastIndexOf('/'); if (lastIndexOfSlash >= 0 && lastIndexOfSlash + 1 < url.length()) { mediaTitle = path.substring(lastIndexOfSlash + 1); int lastIndexOfDot = mediaTitle.lastIndexOf('.'); if (lastIndexOfDot > 0) { mediaTitle = mediaTitle.substring(0, lastIndexOfDot); } } else { mediaTitle = path; } return mediaTitle.isEmpty() ? url : mediaTitle; } catch (MalformedURLException mfu) { return url; } } }