mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-19 00:01:41 +02:00
b6fb239e74
some file types are containers for several files. These containers had been parsed in such a way that the set of resulting parsed content was merged into one single document before parsing. Using this parser infrastructure it is not possible to parse document containers that contain individual files. An example is a rss file where the rss messages can be treated as individual documents with their own url reference. Another example is a surrogate file which was treated with a special operation outside of the parser infrastructure. This commit introduces a redesigned parser interface and a new abstract parser implementation. The new parser interface has now only one entry point and returns always a set of parsed documents. In case of single documents the parser method returns a set of one documents. To be compliant with the new interface, the zip and tar parser had been also completely redesigned. All parsers are now much more simple and cleaner in its structure. The switchboard operations had been extended to operate with sets of parsed files, not single parsed files. additionally, parsing of jar manifest files had been added. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6955 6c8d7289-2bf4-0310-a012-ef5d649a1542
110 lines
4.1 KiB
Java
110 lines
4.1 KiB
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.io.UnsupportedEncodingException;
|
|
|
|
import net.yacy.cora.document.MultiProtocolURI;
|
|
import net.yacy.document.AbstractParser;
|
|
import net.yacy.document.Document;
|
|
import net.yacy.document.Parser;
|
|
import org.apache.poi.hwpf.extractor.WordExtractor;
|
|
|
|
public class docParser extends AbstractParser implements Parser {
|
|
|
|
public docParser() {
|
|
super("Word Document Parser");
|
|
SUPPORTED_EXTENSIONS.add("doc");
|
|
SUPPORTED_MIME_TYPES.add("application/msword");
|
|
SUPPORTED_MIME_TYPES.add("application/doc");
|
|
SUPPORTED_MIME_TYPES.add("appl/text");
|
|
SUPPORTED_MIME_TYPES.add("application/vnd.msword");
|
|
SUPPORTED_MIME_TYPES.add("application/vnd.ms-word");
|
|
SUPPORTED_MIME_TYPES.add("application/winword");
|
|
SUPPORTED_MIME_TYPES.add("application/word");
|
|
SUPPORTED_MIME_TYPES.add("application/x-msw6");
|
|
SUPPORTED_MIME_TYPES.add("application/x-msword");
|
|
}
|
|
|
|
public Document[] parse(final MultiProtocolURI location, final String mimeType, final String charset, final InputStream source) throws Parser.Failure, InterruptedException {
|
|
|
|
final WordExtractor extractor;
|
|
|
|
try {
|
|
extractor = new WordExtractor(source);
|
|
} catch (Exception e) {
|
|
throw new Parser.Failure("error in docParser, WordTextExtractorFactory: " + e.getMessage(), location);
|
|
}
|
|
|
|
StringBuilder contents = new StringBuilder();
|
|
try {
|
|
contents.append(extractor.getText().trim());
|
|
contents.append(" ");
|
|
contents.append(extractor.getHeaderText());
|
|
contents.append(" ");
|
|
contents.append(extractor.getFooterText());
|
|
} catch (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.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();
|
|
}
|
|
|
|
Document[] docs;
|
|
try {
|
|
docs = new Document[]{new Document(
|
|
location,
|
|
mimeType,
|
|
"UTF-8",
|
|
null,
|
|
null,
|
|
title,
|
|
"", // TODO: AUTHOR
|
|
extractor.getDocSummaryInformation().getCompany(), // publisher
|
|
null,
|
|
null,
|
|
contents.toString().getBytes("UTF-8"),
|
|
null,
|
|
null,
|
|
false)};
|
|
} catch (UnsupportedEncodingException e) {
|
|
throw new Parser.Failure("error in docParser, getBytes: " + e.getMessage(), location);
|
|
}
|
|
|
|
return docs;
|
|
}
|
|
|
|
}
|