001 /** 002 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved. 003 * 004 * This library is free software; you can redistribute it and/or modify it under 005 * the terms of the GNU Lesser General Public License as published by the Free 006 * Software Foundation; either version 2.1 of the License, or (at your option) 007 * any later version. 008 * 009 * This library is distributed in the hope that it will be useful, but WITHOUT 010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 011 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 012 * details. 013 */ 014 015 package com.liferay.portal.kernel.util; 016 017 import java.io.File; 018 import java.io.InputStream; 019 020 import java.util.Set; 021 022 /** 023 * @author Jorge Ferrer 024 * @author Brian Wing Shun Chan 025 * @author Alexander Chow 026 */ 027 public class MimeTypesUtil { 028 029 public static String getContentType(File file) { 030 return getMimeTypes().getContentType(file); 031 } 032 033 public static String getContentType(File file, String title) { 034 return getMimeTypes().getContentType(file, title); 035 } 036 037 /** 038 * Determine the content type from an input stream and file name. 039 * 040 * @param fileName full name or extension of file (e.g., "Test.doc", 041 * ".doc") 042 * @return content type if it is a supported format or an empty string if it 043 * is an unsupported format 044 */ 045 public static String getContentType( 046 InputStream inputStream, String fileName) { 047 048 return getMimeTypes().getContentType(inputStream, fileName); 049 } 050 051 /** 052 * Determine the content type from a file name. 053 * 054 * @param fileName full name or extension of file (e.g., "Test.doc", 055 * ".doc") 056 * @return content type if it is a supported format or an empty string if it 057 * is an unsupported format 058 */ 059 public static String getContentType(String fileName) { 060 return getMimeTypes().getContentType(fileName); 061 } 062 063 /** 064 * Determine the possible file extensions for a given content type. 065 * 066 * @param contentType content type of file (e.g., "image/jpeg") 067 * @return set of extensions if it is a known content type or an empty set 068 * if it is an unknown content type 069 */ 070 public static Set<String> getExtensions(String contentType) { 071 return getMimeTypes().getExtensions(contentType); 072 } 073 074 public static MimeTypes getMimeTypes() { 075 return _mimeTypes; 076 } 077 078 public void setMimeTypes(MimeTypes mimeTypes) { 079 _mimeTypes = mimeTypes; 080 } 081 082 private static MimeTypes _mimeTypes; 083 084 }