mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
659178942f
queue and not from virtual documents generated by the parser. - The parser now generates nice description texts for NOLOAD entries which shall make it possible to find media content using the search index and not using the media prefetch algorithm during search (which was costly) - Removed the media-search prefetch process from image search
109 lines
4.0 KiB
Java
109 lines
4.0 KiB
Java
//bzipParser.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.File;
|
|
import java.io.FileOutputStream;
|
|
import java.io.InputStream;
|
|
|
|
import net.yacy.cora.document.MultiProtocolURI;
|
|
import net.yacy.document.AbstractParser;
|
|
import net.yacy.document.Document;
|
|
import net.yacy.document.Parser;
|
|
import net.yacy.document.TextParser;
|
|
import net.yacy.kelondro.util.FileUtils;
|
|
|
|
import org.apache.tools.bzip2.CBZip2InputStream;
|
|
|
|
|
|
public class bzipParser extends AbstractParser implements Parser {
|
|
|
|
public bzipParser() {
|
|
super("Bzip 2 UNIX Compressed File Parser");
|
|
this.SUPPORTED_EXTENSIONS.add("bz2");
|
|
this.SUPPORTED_EXTENSIONS.add("tbz");
|
|
this.SUPPORTED_EXTENSIONS.add("tbz2");
|
|
this.SUPPORTED_MIME_TYPES.add("application/x-bzip2");
|
|
this.SUPPORTED_MIME_TYPES.add("application/bzip2");
|
|
this.SUPPORTED_MIME_TYPES.add("application/x-bz2");
|
|
this.SUPPORTED_MIME_TYPES.add("application/x-bzip");
|
|
this.SUPPORTED_MIME_TYPES.add("application/x-stuffit");
|
|
}
|
|
|
|
@Override
|
|
public Document[] parse(final MultiProtocolURI location, final String mimeType,
|
|
final String charset, final InputStream source)
|
|
throws Parser.Failure, InterruptedException {
|
|
|
|
File tempFile = null;
|
|
Document[] docs;
|
|
try {
|
|
/*
|
|
* First we have to consume the first two char from the stream. Otherwise
|
|
* the bzip decompression will fail with a nullpointerException!
|
|
*/
|
|
int b = source.read();
|
|
if (b != 'B') {
|
|
throw new Exception("Invalid bz2 content.");
|
|
}
|
|
b = source.read();
|
|
if (b != 'Z') {
|
|
throw new Exception("Invalid bz2 content.");
|
|
}
|
|
|
|
int read = 0;
|
|
final byte[] data = new byte[1024];
|
|
final CBZip2InputStream zippedContent = new CBZip2InputStream(source);
|
|
|
|
tempFile = File.createTempFile("bunzip","tmp");
|
|
tempFile.deleteOnExit();
|
|
|
|
// creating a temp file to store the uncompressed data
|
|
final FileOutputStream out = new FileOutputStream(tempFile);
|
|
|
|
// reading gzip file and store it uncompressed
|
|
while((read = zippedContent.read(data, 0, 1024)) != -1) {
|
|
out.write(data, 0, read);
|
|
}
|
|
zippedContent.close();
|
|
out.close();
|
|
|
|
// creating a new parser class to parse the unzipped content
|
|
docs = TextParser.parseSource(location, null, null, tempFile);
|
|
} catch (final Exception e) {
|
|
if (e instanceof InterruptedException) throw (InterruptedException) e;
|
|
if (e instanceof Parser.Failure) throw (Parser.Failure) e;
|
|
|
|
throw new Parser.Failure("Unexpected error while parsing bzip file. " + e.getMessage(),location);
|
|
} finally {
|
|
if (tempFile != null) FileUtils.deletedelete(tempFile);
|
|
}
|
|
return docs;
|
|
}
|
|
}
|