You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
5.1 KiB
139 lines
5.1 KiB
//pptParser.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 Tim Riemann
|
|
//
|
|
// $LastChangedDate$
|
|
// $LastChangedRevision$
|
|
// $LastChangedBy$
|
|
//
|
|
//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.BufferedInputStream;
|
|
import java.io.InputStream;
|
|
import java.util.HashSet;
|
|
import java.util.Set;
|
|
|
|
import net.yacy.cora.document.MultiProtocolURI;
|
|
import net.yacy.document.AbstractParser;
|
|
import net.yacy.document.Document;
|
|
import net.yacy.document.Idiom;
|
|
import net.yacy.document.ParserException;
|
|
import net.yacy.kelondro.logging.Log;
|
|
|
|
import org.apache.poi.hslf.extractor.PowerPointExtractor;
|
|
|
|
public class pptParser extends AbstractParser implements Idiom {
|
|
|
|
/**
|
|
* a list of mime types that are supported by this parser class
|
|
* @see #getSupportedMimeTypes()
|
|
*/
|
|
public static final Set<String> SUPPORTED_MIME_TYPES = new HashSet<String>();
|
|
public static final Set<String> SUPPORTED_EXTENSIONS = new HashSet<String>();
|
|
static {
|
|
SUPPORTED_EXTENSIONS.add("ppt");
|
|
SUPPORTED_EXTENSIONS.add("pps");
|
|
SUPPORTED_MIME_TYPES.add("application/mspowerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/powerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/vnd.ms-powerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/ms-powerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/mspowerpnt");
|
|
SUPPORTED_MIME_TYPES.add("application/vnd-mspowerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/x-powerpoint");
|
|
SUPPORTED_MIME_TYPES.add("application/x-m");
|
|
}
|
|
|
|
public pptParser(){
|
|
super("Microsoft Powerpoint Parser");
|
|
}
|
|
|
|
/*
|
|
* parses the source documents and returns a plasmaParserDocument containing
|
|
* all extracted information about the parsed document
|
|
*/
|
|
public Document parse(final MultiProtocolURI location, final String mimeType,
|
|
final String charset, final InputStream source) throws ParserException,
|
|
InterruptedException {
|
|
try {
|
|
/*
|
|
* create new PowerPointExtractor and extract text and notes
|
|
* of the document
|
|
*/
|
|
final PowerPointExtractor pptExtractor = new PowerPointExtractor(new BufferedInputStream(source));
|
|
final String contents = pptExtractor.getText(true, true).trim();
|
|
String title = contents.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();
|
|
}
|
|
|
|
/*
|
|
* create the plasmaParserDocument for the database
|
|
* and set shortText and bodyText properly
|
|
*/
|
|
final Document theDoc = new Document(
|
|
location,
|
|
mimeType,
|
|
"UTF-8",
|
|
null,
|
|
null,
|
|
title,
|
|
"", // TODO: AUTHOR
|
|
pptExtractor.getDocSummaryInformation().getCompany(),
|
|
null,
|
|
null,
|
|
contents.getBytes("UTF-8"),
|
|
null,
|
|
null,
|
|
false);
|
|
return theDoc;
|
|
} catch (final Exception e) {
|
|
if (e instanceof InterruptedException) throw (InterruptedException) e;
|
|
|
|
/*
|
|
* an unexpected error occurred, log it and throw a ParserException
|
|
*/
|
|
Log.logException(e);
|
|
final String errorMsg = "Unable to parse the ppt document '" + location + "':" + e.getMessage();
|
|
this.theLogger.logSevere(errorMsg);
|
|
throw new ParserException(errorMsg, location);
|
|
}
|
|
}
|
|
|
|
public Set<String> supportedMimeTypes() {
|
|
return SUPPORTED_MIME_TYPES;
|
|
}
|
|
|
|
public Set<String> supportedExtensions() {
|
|
return SUPPORTED_EXTENSIONS;
|
|
}
|
|
|
|
@Override
|
|
public void reset(){
|
|
//nothing to do
|
|
super.reset();
|
|
}
|
|
}
|