Current File : //proc/309157/root/home/waritko/yacy/source/net/yacy/document/parser/docParser.java
//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 org.apache.poi.hwpf.HWPFDocumentCore;
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;
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;
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 = HWPFDocumentCore.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;
}
}
Mini Shell