yacy_search_server/source/de/anomic/plasma/parser/rtf/rtfParser.java
orbiter bfcf9b7aa3 - added language detection using metadata from documents: html and odt documents provide this information
- metadata and results from statistical analysis are compared and result is printed out as debug lines
- added ranking profile for wanted language
- added class with ISO 639 table, a list of all valid country codes that will be used for the language identification

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5187 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-09-19 22:19:11 +00:00

111 lines
3.9 KiB
Java

//rtfParser.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
//last major change: 16.05.2005
//
//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 de.anomic.plasma.parser.rtf;
import java.io.InputStream;
import java.util.Hashtable;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.rtf.RTFEditorKit;
import de.anomic.plasma.plasmaParserDocument;
import de.anomic.plasma.parser.AbstractParser;
import de.anomic.plasma.parser.Parser;
import de.anomic.plasma.parser.ParserException;
import de.anomic.yacy.yacyURL;
public class rtfParser extends AbstractParser implements Parser {
/**
* a list of mime types that are supported by this parser class
* @see #getSupportedMimeTypes()
*/
public static final Hashtable<String, String> SUPPORTED_MIME_TYPES = new Hashtable<String, String>();
static {
SUPPORTED_MIME_TYPES.put("application/rtf","rtf");
SUPPORTED_MIME_TYPES.put("text/rtf","rtf");
}
/**
* a list of library names that are needed by this parser
* @see Parser#getLibxDependences()
*/
private static final String[] LIBX_DEPENDENCIES = new String[] {};
public rtfParser() {
super(LIBX_DEPENDENCIES);
this.parserName = "Rich Text Format Parser";
}
public plasmaParserDocument parse(final yacyURL location, final String mimeType, final String charset, final InputStream source) throws ParserException, InterruptedException {
try {
final DefaultStyledDocument doc = new DefaultStyledDocument();
final RTFEditorKit theRtfEditorKit = new RTFEditorKit();
theRtfEditorKit.read(source, doc, 0);
final String bodyText = doc.getText(0, doc.getLength());
final plasmaParserDocument theDoc = new plasmaParserDocument(
location,
mimeType,
"UTF-8",
null,
null,
((bodyText.length() > 80)? bodyText.substring(0, 80):bodyText.trim()).
replaceAll("\r\n"," ").
replaceAll("\n"," ").
replaceAll("\r"," ").
replaceAll("\t"," "),
"", // TODO: AUTHOR
null,
null,
bodyText.getBytes("UTF-8"),
null,
null);
return theDoc;
}
catch (final Exception e) {
if (e instanceof InterruptedException) throw (InterruptedException) e;
if (e instanceof ParserException) throw (ParserException) e;
throw new ParserException("Unexpected error while parsing rtf resource." + e.getMessage(),location);
}
}
public Hashtable<String, String> getSupportedMimeTypes() {
return rtfParser.SUPPORTED_MIME_TYPES;
}
public void reset() {
// Nothing todo here at the moment
super.reset();
}
}