1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.nio.fs; 27 28 import java.io.IOException; 29 import java.nio.file.Path; 30 import java.security.AccessController; 31 import java.security.PrivilegedAction; 32 33 /** 34 * File type detector that uses a file extension to look up its MIME type 35 * via the Apple Uniform Type Identifier interfaces. 36 */ 37 class UTIFileTypeDetector extends AbstractFileTypeDetector { 38 UTIFileTypeDetector() { 39 super(); 40 } 41 42 private native String probe0(String fileExtension) throws IOException; 43 44 @Override 45 protected String implProbeContentType(Path path) throws IOException { 46 Path fn = path.getFileName(); 47 if (fn == null) 48 return null; // no file name 49 50 String ext = getExtension(fn.toString()); 51 if (ext.isEmpty()) 52 return null; // no extension 53 54 return probe0(ext); 55 } 56 57 static { 58 AccessController.doPrivileged(new PrivilegedAction<>() { 59 @Override 60 public Void run() { 61 System.loadLibrary("nio"); 62 return null; 63 } 64 }); 65 } 66 }