net.yacy.document.parser.docParser.java Source code

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Here is the source code for net.yacy.document.parser.docParser.java

Source

//docParser.java
//------------------------
//part of YaCy
//(C) by Michael Peter Christen; mc@yacy.net
//first published on http://www.anomic.de
//Frankfurt, Germany, 2005
//
//this file is contributed by Martin Thelian
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
//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.
//
//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.
//
//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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

package net.yacy.document.parser;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import net.yacy.cora.document.id.AnchorURL;
import net.yacy.cora.util.CommonPattern;
import net.yacy.document.AbstractParser;
import net.yacy.document.Document;
import net.yacy.document.Parser;
import net.yacy.document.VocabularyScraper;

import org.apache.poi.hwpf.extractor.WordExtractor;

public class docParser extends AbstractParser implements Parser {

    public docParser() {
        super("Word Document Parser");
        this.SUPPORTED_EXTENSIONS.add("doc");
        this.SUPPORTED_MIME_TYPES.add("application/msword");
        this.SUPPORTED_MIME_TYPES.add("application/doc");
        this.SUPPORTED_MIME_TYPES.add("appl/text");
        this.SUPPORTED_MIME_TYPES.add("application/vnd.msword");
        this.SUPPORTED_MIME_TYPES.add("application/vnd.ms-word");
        this.SUPPORTED_MIME_TYPES.add("application/winword");
        this.SUPPORTED_MIME_TYPES.add("application/word");
        this.SUPPORTED_MIME_TYPES.add("application/x-msw6");
        this.SUPPORTED_MIME_TYPES.add("application/x-msword");
    }

    @SuppressWarnings("deprecation")
    @Override
    public Document[] parse(final AnchorURL location, final String mimeType, final String charset,
            final VocabularyScraper scraper, final int timezoneOffset, final InputStream source)
            throws Parser.Failure, InterruptedException {

        final WordExtractor extractor;

        try {
            extractor = new WordExtractor(source);
        } catch (final Exception e) {
            throw new Parser.Failure("error in docParser, WordTextExtractorFactory: " + e.getMessage(), location);
        }

        final StringBuilder contents = new StringBuilder(80);
        try {
            contents.append(extractor.getText().trim());
            contents.append(' ');
            contents.append(extractor.getHeaderText());
            contents.append(' ');
            contents.append(extractor.getFooterText());
        } catch (final Exception e) {
            throw new Parser.Failure("error in docParser, getText: " + e.getMessage(), location);
        }
        String title = (contents.length() > 240) ? contents.substring(0, 240) : contents.toString().trim();
        title = title.replaceAll("\r", " ").replaceAll("\n", " ").replaceAll("\t", " ").trim();
        if (title.length() > 80)
            title = title.substring(0, 80);
        int l = title.length();
        while (true) {
            title = title.replaceAll("  ", " ");
            if (title.length() == l)
                break;
            l = title.length();
        }
        // get keywords (for yacy as array)
        final String keywords = extractor.getSummaryInformation().getKeywords();
        final String[] keywlist;
        if (keywords != null && !keywords.isEmpty()) {
            keywlist = CommonPattern.COMMA.split(keywords);
        } else {
            keywlist = null;
        }

        final String subject = extractor.getSummaryInformation().getSubject();
        List<String> descriptions = new ArrayList<String>();
        if (subject != null && !subject.isEmpty())
            descriptions.add(subject);

        Document[] docs;
        docs = new Document[] { new Document(location, mimeType, "UTF-8", this, null, keywlist, singleList(title),
                extractor.getSummaryInformation().getAuthor(), // constuctor can handle null
                extractor.getDocSummaryInformation().getCompany(), // publisher
                null, descriptions, 0.0f, 0.0f, contents.toString(), null, null, null, false, new Date()) };

        return docs;
    }

}