/*
* TV-Browser
* Copyright (C) 04-2003 Martin Oberhauser (martin@tvbrowser.org)
*
* 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.
*
* CVS information:
* $RCSfile$
* $Source$
* $Date: 2008-06-01 12:08:18 +0200 (Sun, 01 Jun 2008) $
* $Author: troggan $
* $Revision: 4787 $
*/
import org.apache.xerces.parsers.SAXParser;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import primarydatamanager.primarydataservice.AbstractPrimaryDataService;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
/**
* Extracts TV data from a XMLTV file (see http://membled.com/work/apps/xmltv/).
*
* @author Til Schneider, www.murfman.de
*/
public class XmlTvPDS extends AbstractPrimaryDataService {
/**
* The file where the TV data is stored.
*/
private static final String TV_DATA_FILE_NAME = "input/TvData.xml";
/**
* Gets the list of the channels that are available by this data service.
*
* @return The list of available channels
*/
/**
* Gets the raw TV data and writes it to a directory
*
* @param dir The directory to write the raw TV data to.
*/
protected void execute(String dir) {
// Get the TV data file
File channelFile = new File(TV_DATA_FILE_NAME);
if (!channelFile.exists()) {
logMessage("Channel data file not found: " + channelFile.getAbsolutePath());
}
// parse the TV data file
XmlTvDataHandler handler = new XmlTvDataHandler(this);
FileInputStream stream = null;
try {
stream = new FileInputStream(channelFile);
parse(stream, handler);
stream.close();
}
catch (Exception exc) {
logException(exc);
}
finally {
if (stream != null) {
try {
stream.close();
} catch (Exception exc) {
// Emtpy Catch
}
}
}
// Store the extracted TV data
try {
handler.storeTvData(dir);
}
catch (Exception exc) {
logException(exc);
}
}
/**
* Gets the number of bytes read (= downloaded) by this data service.
*
* @return The number of bytes read.
*/
public int getReadBytesCount() {
return 0;
}
/**
* Parses a stream.
*
* @param stream The stream to parse.
* @param handler The handler to use for parsing.
* @throws Exception When parsing failed.
*/
private void parse(InputStream stream, ContentHandler handler)
throws Exception {
SAXParser parser = new SAXParser();
parser.setContentHandler(handler);
// Complete list of features of the xerces parser:
// http://xml.apache.org/xerces2-j/features.html
parser.setFeature("http://xml.org/sax/features/validation", false);
parser.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
parser.parse(new InputSource(stream));
}
}