com.openkm.util.metadata.MetadataExtractor.java Source code

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Here is the source code for com.openkm.util.metadata.MetadataExtractor.java

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/**
 * OpenKM, Open Document Management System (http://www.openkm.com)
 * Copyright (c) 2006-2017  Paco Avila & Josep Llort
 * <p>
 * No bytes were intentionally harmed during the development of this application.
 * <p>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * <p>
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * <p>
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.openkm.util.metadata;

import com.catcode.odf.ODFMetaFileAnalyzer;
import com.catcode.odf.OpenDocumentMetadata;
import com.openkm.core.MimeTypeConfig;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDDocumentInformation;
import org.apache.poi.hpsf.SummaryInformation;
import org.apache.poi.hslf.extractor.PowerPointExtractor;
import org.apache.poi.hssf.extractor.ExcelExtractor;
import org.apache.poi.hwpf.extractor.WordExtractor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.util.Calendar;

public class MetadataExtractor {
    private static Logger log = LoggerFactory.getLogger(MetadataExtractor.class);

    /**
     * Extract metadata from PDF
     */
    public static PdfMetadata pdfExtractor(InputStream is) throws IOException {
        PDDocument doc = PDDocument.load(is);
        PDDocumentInformation info = doc.getDocumentInformation();
        PdfMetadata md = new PdfMetadata();

        md.setNumberOfPages(doc.getNumberOfPages());
        md.setTitle(info.getTitle());
        md.setAuthor(info.getAuthor());
        md.setSubject(info.getSubject());
        md.setKeywords(info.getKeywords());
        md.setCreator(info.getCreator());
        md.setProducer(info.getProducer());
        md.setTrapped(info.getTrapped());
        md.setCreationDate(info.getCreationDate());
        md.setModificationDate(info.getModificationDate());

        log.info("pdfExtractor: {}", md);
        return md;
    }

    /**
     * Extract metadata from Office Word
     */
    public static OfficeMetadata officeExtractor(InputStream is, String mimeType) throws IOException {
        POIFSFileSystem fs = new POIFSFileSystem(is);
        OfficeMetadata md = new OfficeMetadata();
        SummaryInformation si = null;

        if (MimeTypeConfig.MIME_MS_WORD.equals(mimeType)) {
            si = new WordExtractor(fs).getSummaryInformation();
        } else if (MimeTypeConfig.MIME_MS_EXCEL.equals(mimeType)) {
            si = new ExcelExtractor(fs).getSummaryInformation();
        } else if (MimeTypeConfig.MIME_MS_POWERPOINT.equals(mimeType)) {
            si = new PowerPointExtractor(fs).getSummaryInformation();
        }

        if (si != null) {
            md.setTitle(si.getTitle());
            md.setSubject(si.getSubject());
            md.setAuthor(si.getAuthor());
            md.setLastAuthor(si.getLastAuthor());
            md.setKeywords(si.getKeywords());
            md.setComments(si.getComments());
            md.setTemplate(si.getTemplate());
            md.setRevNumber(si.getRevNumber());
            md.setApplicationName(si.getApplicationName());
            md.setEditTime(si.getEditTime());
            md.setPageCount(si.getPageCount());
            md.setWordCount(si.getWordCount());
            md.setCharCount(si.getCharCount());
            md.setSecurity(si.getSecurity());

            Calendar createDateTime = Calendar.getInstance();
            createDateTime.setTime(si.getCreateDateTime());
            md.setCreateDateTime(createDateTime);

            Calendar lastSaveDateTime = Calendar.getInstance();
            lastSaveDateTime.setTime(si.getLastSaveDateTime());
            md.setLastSaveDateTime(lastSaveDateTime);

            Calendar lastPrinted = Calendar.getInstance();
            lastPrinted.setTime(si.getLastPrinted());
            md.setLastPrinted(lastPrinted);
        }

        log.info("officeExtractor: {}", md);
        return md;
    }

    public static void OpenOfficeExtractor(InputStream is) {
        ODFMetaFileAnalyzer analyzer = new ODFMetaFileAnalyzer();
        OpenDocumentMetadata odmt = analyzer.analyzeZip(is);
        OpenOfficeMetadata md = new OpenOfficeMetadata();

        if (odmt != null) {
            md.setTitle(odmt.getTitle());
            md.setSubject(odmt.getSubject());
            md.setCreator(odmt.getCreator());
            md.setInitialCreator(odmt.getInitialCreator());
            md.setKeyword(odmt.getKeyword());
            md.setDescription(odmt.getDescription());
            md.setEditingCycles(odmt.getEditingCycles());
            md.setEditingDuration((long) odmt.getEditingDuration().getSeconds()
                    + odmt.getEditingDuration().getMinutes() * 60 + odmt.getEditingDuration().getHours() * 3600
                    + odmt.getEditingDuration().getDays() * 86400);
            md.setPageCount(odmt.getPageCount());
            md.setWordCount(odmt.getWordCount());
            md.setCharacterCount(odmt.getCharacterCount());

            Calendar creationDate = Calendar.getInstance();
            creationDate.setTime(odmt.getCreationDate());
            md.setCreationDate(creationDate);

            Calendar date = Calendar.getInstance();
            date.setTime(odmt.getDate());
            md.setDate(date);

            Calendar printDate = Calendar.getInstance();
            printDate.setTime(odmt.getPrintDate());
            md.setPrintDate(printDate);
        }

        log.info("OpenOfficeExtractor: {}", odmt);
    }
}