mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
4e2c14efbb
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7360 6c8d7289-2bf4-0310-a012-ef5d649a1542
94 lines
3.6 KiB
Java
94 lines
3.6 KiB
Java
//gzipParser.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 java.util.zip.GZIPInputStream;
|
|
|
|
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;
|
|
|
|
|
|
public class gzipParser extends AbstractParser implements Parser {
|
|
|
|
public gzipParser() {
|
|
super("GNU Zip Compressed Archive Parser");
|
|
SUPPORTED_EXTENSIONS.add("gz");
|
|
SUPPORTED_EXTENSIONS.add("tgz");
|
|
SUPPORTED_MIME_TYPES.add("application/x-gzip");
|
|
SUPPORTED_MIME_TYPES.add("application/gzip");
|
|
SUPPORTED_MIME_TYPES.add("application/x-gunzip");
|
|
SUPPORTED_MIME_TYPES.add("application/gzipped");
|
|
SUPPORTED_MIME_TYPES.add("application/gzip-compressed");
|
|
SUPPORTED_MIME_TYPES.add("gzip/document");
|
|
}
|
|
|
|
public Document[] parse(final MultiProtocolURI location, final String mimeType, final String charset, final InputStream source) throws Parser.Failure, InterruptedException {
|
|
|
|
File tempFile = null;
|
|
Document[] docs = null;
|
|
try {
|
|
int read = 0;
|
|
final byte[] data = new byte[1024];
|
|
|
|
final GZIPInputStream zippedContent = new GZIPInputStream(source);
|
|
|
|
tempFile = File.createTempFile("gunzip","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 gzip file. " + e.getMessage(),location);
|
|
} finally {
|
|
if (tempFile != null) FileUtils.deletedelete(tempFile);
|
|
}
|
|
return docs;
|
|
}
|
|
|
|
}
|