//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.nio.charset.StandardCharsets; import java.util.ArrayList; import java.util.List; import net.yacy.cora.document.id.DigestURL; 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.HWPFDocument; import org.apache.poi.hwpf.OldWordFileFormatException; import org.apache.poi.hwpf.extractor.Word6Extractor; import org.apache.poi.hwpf.extractor.WordExtractor; import org.apache.poi.poifs.filesystem.POIFSFileSystem; 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"); } @Override public Document[] parse( final DigestURL location, final String mimeType, final String charset, final VocabularyScraper scraper, final int timezoneOffset, final InputStream source) throws Parser.Failure, InterruptedException { final WordExtractor extractor; POIFSFileSystem poifs = null; try { poifs = HWPFDocument.verifyAndBuildPOIFS(source); // to be able to delegate to parseOldWordDoc w/o source.ioException extractor = new WordExtractor(poifs); } catch (final OldWordFileFormatException isOldWordDoc) { // if old version (Word6/Word95) delegate to old parser (as long as available in poi package) return parseOldWordDoc(location, mimeType, poifs); } 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()); // extractor gets all text incl. headers/footers } 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, StandardCharsets.UTF_8.name(), this, null, keywlist, singleList(title), extractor.getSummaryInformation().getAuthor(), // constuctor can handle null extractor.getDocSummaryInformation().getCompany(), // publisher null, descriptions, 0.0d, 0.0d, contents.toString(), null, null, null, false, extractor.getSummaryInformation().getLastSaveDateTime() // maybe null )}; return docs; } /** * Parse old Word6/95 document * @param location * @param mimeType * @param poifs * @return an array containing one Document * @throws net.yacy.document.Parser.Failure */ public Document[] parseOldWordDoc( final DigestURL location, final String mimeType, final POIFSFileSystem poifs) throws Failure { final Word6Extractor extractor; try { extractor = new Word6Extractor(poifs); } 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()); } 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, StandardCharsets.UTF_8.name(), this, null, keywlist, singleList(title), extractor.getSummaryInformation().getAuthor(), // constuctor can handle null extractor.getDocSummaryInformation().getCompany(), // publisher null, descriptions, 0.0d, 0.0d, contents.toString(), null, null, null, false, extractor.getSummaryInformation().getLastSaveDateTime() // maybe null )}; return docs; } }