001    /*
002     * JBoss, Home of Professional Open Source.
003     * Copyright 2008, Red Hat Middleware LLC, and individual contributors
004     * as indicated by the @author tags. See the copyright.txt file in the
005     * distribution for a full listing of individual contributors. 
006     *
007     * This is free software; you can redistribute it and/or modify it
008     * under the terms of the GNU Lesser General Public License as
009     * published by the Free Software Foundation; either version 2.1 of
010     * the License, or (at your option) any later version.
011     *
012     * This software is distributed in the hope that it will be useful,
013     * but WITHOUT ANY WARRANTY; without even the implied warranty of
014     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015     * Lesser General Public License for more details.
016     *
017     * You should have received a copy of the GNU Lesser General Public
018     * License along with this software; if not, write to the Free
019     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021     */
022    package org.jboss.dna.mimetype;
023    
024    import java.io.IOException;
025    import java.io.InputStream;
026    import org.jboss.dna.graph.mimetype.MimeTypeDetector;
027    import org.semanticdesktop.aperture.mime.identifier.MimeTypeIdentifier;
028    import org.semanticdesktop.aperture.mime.identifier.magic.MagicMimeTypeIdentifier;
029    import org.semanticdesktop.aperture.util.IOUtil;
030    
031    /**
032     * @author jverhaeg
033     */
034    public class ApertureMimeTypeDetector implements MimeTypeDetector {
035    
036        /**
037         * {@inheritDoc}
038         * 
039         * @throws IOException
040         * @see org.jboss.dna.graph.mimetype.MimeTypeDetector#mimeTypeOf(java.lang.String, java.io.InputStream)
041         */
042        public String mimeTypeOf( String name,
043                                  InputStream content ) throws IOException {
044            /*
045                MimeTypes identifier = TikaConfig.getDefaultConfig().getMimeRepository();
046                MimeTypeDetectors mimeType = identifier.getMimeType(path.getLastSegment().getName().getLocalName(), stream);
047                return mimeType == null ? null : mimeType.getName();
048            */
049            MimeTypeIdentifier identifier = new MagicMimeTypeIdentifier();
050            // Read as many bytes of the file as desired by the MIME-type identifier
051            int minimumArrayLength = identifier.getMinArrayLength();
052            byte[] bytes = IOUtil.readBytes(content, minimumArrayLength);
053            // let the MimeTypeIdentifier determine the MIME-type of this file
054            return identifier.identify(bytes, name, null);
055        }
056    }