1e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera/* 2e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 3e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 5e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * This code is free software; you can redistribute it and/or modify it 6e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * under the terms of the GNU General Public License version 2 only, as 7e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * published by the Free Software Foundation. Oracle designates this 8e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * particular file as subject to the "Classpath" exception as provided 9e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * by Oracle in the LICENSE file that accompanied this code. 10e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 11e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * This code is distributed in the hope that it will be useful, but WITHOUT 12e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * version 2 for more details (a copy is included in the LICENSE file that 15e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * accompanied this code). 16e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 17e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * You should have received a copy of the GNU General Public License version 18e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 2 along with this work; if not, write to the Free Software Foundation, 19e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 21e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * or visit www.oracle.com if you need additional information or have any 23e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * questions. 24e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera */ 25e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 26e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmerapackage sun.nio.fs; 27e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 28e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmeraimport java.nio.file.Path; 29e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmeraimport libcore.net.MimeUtils; 30e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 31e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera/** 32e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * File type detector that uses a file extension to look up its MIME type 33e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * based on a mime.types file. 34e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera */ 35e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 36e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmeraclass MimeTypesFileTypeDetector extends AbstractFileTypeDetector { 37e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 38e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera @Override 39e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera protected String implProbeContentType(Path path) { 40e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera Path fn = path.getFileName(); 41e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (fn == null) 42e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return null; // no file name 43e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 44e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera String ext = getExtension(fn.toString()); 45e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (ext.isEmpty()) 46e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return null; // no extension 47e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 48e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera // Case-sensitive search 49e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera String mimeType; 50e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera do { 51e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera mimeType = MimeUtils.guessMimeTypeFromExtension(ext); 52e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (mimeType == null) 53e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera ext = getExtension(ext); 54e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } while (mimeType == null && !ext.isEmpty()); 55e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 56e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return mimeType; 57e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 58e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 59e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera // Get the extension of a file name. 60e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera private static String getExtension(String name) { 61e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera String ext = ""; 62e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (name != null && !name.isEmpty()) { 63e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera int dot = name.indexOf('.'); 64e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if ((dot >= 0) && (dot < name.length() - 1)) { 65e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera ext = name.substring(dot + 1); 66e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 67e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 68e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return ext; 69e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 70e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera} 71