001 /* 002 * JBoss DNA (http://www.jboss.org/dna) 003 * See the COPYRIGHT.txt file distributed with this work for information 004 * regarding copyright ownership. Some portions may be licensed 005 * to Red Hat, Inc. under one or more contributor license agreements. 006 * See the AUTHORS.txt file in the distribution for a full listing of 007 * individual contributors. 008 * 009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA 010 * is licensed to you under the terms of the GNU Lesser General Public License as 011 * published by the Free Software Foundation; either version 2.1 of 012 * the License, or (at your option) any later version. 013 * 014 * JBoss DNA is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 017 * Lesser General Public License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this software; if not, write to the Free 021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 023 */ 024 package org.jboss.dna.sequencer.mp3; 025 026 import java.io.File; 027 import java.io.FileOutputStream; 028 import java.io.InputStream; 029 import java.util.logging.Level; 030 import org.jaudiotagger.audio.AudioFile; 031 import org.jaudiotagger.audio.AudioFileIO; 032 import org.jaudiotagger.tag.Tag; 033 034 /** 035 * Utility for extracting metadata from MP3 files. 036 * 037 * @author Stefano Maestri 038 */ 039 public class Mp3Metadata { 040 041 private String title; 042 private String author; 043 private String album; 044 private String year; 045 private String comment; 046 047 private Mp3Metadata() { 048 049 } 050 051 public static Mp3Metadata instance( InputStream stream ) { 052 053 Mp3Metadata me = null; 054 File tmpFile = null; 055 try { 056 tmpFile = File.createTempFile("dna-sequencer-mp3", ".mp3"); 057 FileOutputStream writer = new FileOutputStream(tmpFile); 058 byte[] b = new byte[128]; 059 while (stream.read(b) != -1) { 060 writer.write(b); 061 } 062 writer.close(); 063 AudioFileIO.logger.getParent().setLevel(Level.OFF); 064 AudioFile f = AudioFileIO.read(tmpFile); 065 Tag tag = f.getTag(); 066 067 me = new Mp3Metadata(); 068 069 me.author = tag.getFirstArtist(); 070 me.album = tag.getFirstAlbum(); 071 me.title = tag.getFirstTitle(); 072 me.comment = tag.getFirstComment(); 073 me.year = tag.getFirstYear(); 074 075 } catch (Exception e) { 076 e.printStackTrace(); 077 } finally { 078 if (tmpFile != null) { 079 tmpFile.delete(); 080 } 081 } 082 return me; 083 084 } 085 086 public String getTitle() { 087 return title; 088 } 089 090 public String getAuthor() { 091 return author; 092 } 093 094 public String getAlbum() { 095 return album; 096 } 097 098 public String getYear() { 099 return year; 100 } 101 102 public String getComment() { 103 return comment; 104 } 105 106 }