mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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f1f2d4c035
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5928 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
109 lines
3.9 KiB
Java
109 lines
3.9 KiB
Java
/*
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* Copyright (C) 2005 Jesper Steen Møller
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program 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 General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* As a special exception to the terms and conditions of version 2.0 of
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* the GPL, you may redistribute this Program in connection with Free/Libre
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* and Open Source Software ("FLOSS") applications as described in Alfresco's
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* FLOSS exception. You should have recieved a copy of the text describing
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* the FLOSS exception, and it is also available here:
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* http://www.alfresco.com/legal/licensing"
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*/
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package org.alfresco.repo.content.metadata;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.Serializable;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.HashSet;
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import java.util.Map;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.pdfbox.pdmodel.PDDocument;
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import org.pdfbox.pdmodel.PDDocumentInformation;
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/**
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* Metadata extractor for the PDF documents.
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* <pre>
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* <b>author:</b> -- cm:author
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* <b>title:</b> -- cm:title
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* <b>subject:</b> -- cm:description
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* <b>created:</b> -- cm:created
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* </pre>
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*
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* @author Jesper Steen Møller
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* @author Derek Hulley
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*/
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public class PdfBoxMetadataExtracter extends AbstractMappingMetadataExtracter
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{
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private static final String KEY_AUTHOR = "author";
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private static final String KEY_TITLE = "title";
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private static final String KEY_SUBJECT = "subject";
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private static final String KEY_CREATED = "created";
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public static String[] SUPPORTED_MIMETYPES = new String[] {MimetypeMap.MIMETYPE_PDF };
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public PdfBoxMetadataExtracter()
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{
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super(new HashSet<String>(Arrays.asList(SUPPORTED_MIMETYPES)));
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}
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@Override
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public Map<String, Serializable> extractRaw(ContentReader reader) throws Throwable
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{
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Map<String, Serializable> rawProperties = newRawMap();
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PDDocument pdf = null;
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InputStream is = null;
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try
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{
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is = reader.getContentInputStream();
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// stream the document in
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pdf = PDDocument.load(is);
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if (!pdf.isEncrypted())
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{
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// Scoop out the metadata
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PDDocumentInformation docInfo = pdf.getDocumentInformation();
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putRawValue(KEY_AUTHOR, docInfo.getAuthor(), rawProperties);
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putRawValue(KEY_TITLE, docInfo.getTitle(), rawProperties);
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putRawValue(KEY_SUBJECT, docInfo.getSubject(), rawProperties);
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Calendar created = docInfo.getCreationDate();
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if (created != null)
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{
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putRawValue(KEY_CREATED, created.getTime(), rawProperties);
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}
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}
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}
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finally
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{
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if (is != null)
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{
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try { is.close(); } catch (IOException e) {}
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}
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if (pdf != null)
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{
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try { pdf.close(); } catch (Throwable e) { e.printStackTrace(); }
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}
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}
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// Done
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return rawProperties;
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}
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}
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