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62f07a8661
The remaining extractors to be converted to Tika now have been, tests have been included for the image metadata extraction, and some extension points for future extractors have been created. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@20669 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
131 lines
4.7 KiB
Java
131 lines
4.7 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.content.metadata;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Map;
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import org.alfresco.repo.content.MimetypeMap;
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import org.apache.tika.metadata.Metadata;
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import org.apache.tika.metadata.XMPDM;
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import org.apache.tika.parser.Parser;
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import org.apache.tika.parser.mp3.Mp3Parser;
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/**
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* Extracts the following values from MP3 files:
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* <pre>
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* <b>songTitle:</b> -- {music}songTitle, cm:title
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* <b>albumTitle:</b> -- {music}albumTitle
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* <b>artist:</b> -- {music}artist, cm:author
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* <b>description:</b> -- cm:description
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* <b>comment:</b> -- {music}comment
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* <b>yearReleased:</b> -- {music}yearReleased
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* <b>trackNumber:</b> -- {music}trackNumber
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* <b>genre:</b> -- {music}genre
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* <b>composer:</b> -- {music}composer
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* <b>lyrics:</b> -- {music}lyrics
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* </pre>
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*
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* TODO Get hold of a mp3 file with some lyrics in it, so we
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* can contribute the patch to Tika
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*
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* Uses Apache Tika
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*
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* @author Nick Burch
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* @author Roy Wetherall
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*/
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public class MP3MetadataExtracter extends TikaPoweredMetadataExtracter
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{
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private static final String KEY_SONG_TITLE = "songTitle";
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private static final String KEY_ALBUM_TITLE = "albumTitle";
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private static final String KEY_ARTIST = "artist";
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private static final String KEY_DESCRIPTION = "description";
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private static final String KEY_COMMENT = "comment";
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private static final String KEY_YEAR_RELEASED = "yearReleased";
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private static final String KEY_TRACK_NUMBER = "trackNumber";
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private static final String KEY_GENRE = "genre";
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private static final String KEY_COMPOSER = "composer";
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private static final String KEY_LYRICS = "lyrics";
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public static ArrayList<String> SUPPORTED_MIMETYPES = buildSupportedMimetypes(
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new String[] { MimetypeMap.MIMETYPE_MP3 },
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new Mp3Parser()
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);
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public MP3MetadataExtracter()
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{
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super(SUPPORTED_MIMETYPES);
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}
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@Override
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protected Parser getParser() {
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return new Mp3Parser();
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}
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@Override
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protected Map<String, Serializable> extractSpecific(Metadata metadata,
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Map<String, Serializable> properties, Map<String,String> headers) {
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putRawValue(KEY_ALBUM_TITLE, metadata.get(XMPDM.ALBUM), properties);
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putRawValue(KEY_SONG_TITLE, metadata.get(Metadata.TITLE), properties);
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putRawValue(KEY_ARTIST, metadata.get(XMPDM.ARTIST), properties);
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putRawValue(KEY_COMMENT, metadata.get(XMPDM.LOG_COMMENT), properties);
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putRawValue(KEY_TRACK_NUMBER, metadata.get(XMPDM.TRACK_NUMBER), properties);
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putRawValue(KEY_GENRE, metadata.get(XMPDM.GENRE), properties);
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putRawValue(KEY_YEAR_RELEASED, metadata.get(XMPDM.RELEASE_DATE), properties);
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putRawValue(KEY_COMPOSER, metadata.get(XMPDM.COMPOSER), properties);
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// TODO lyrics
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//putRawValue(KEY_LYRICS, getLyrics(), properties);
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putRawValue(KEY_DESCRIPTION, generateDescription(metadata), properties);
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return properties;
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}
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/**
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* Generate the description
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*
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* @param props the properties extracted from the file
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* @return the description
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*/
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private String generateDescription(Metadata metadata)
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{
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StringBuilder result = new StringBuilder();
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if (metadata.get(Metadata.TITLE) != null)
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{
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result.append(metadata.get(Metadata.TITLE));
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if (metadata.get(XMPDM.ALBUM) != null)
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{
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result
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.append(" - ")
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.append(metadata.get(XMPDM.ALBUM));
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}
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if (metadata.get(XMPDM.ARTIST) != null)
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{
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result
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.append(" (")
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.append(metadata.get(XMPDM.ARTIST))
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.append(")");
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}
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}
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return result.toString();
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}
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}
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