/*
* eXist Open Source Native XML Database
* Copyright (C) 2001-2010 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* $Id$
*/
package org.exist.backup;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.exist.xquery.XPathException;
import org.exist.xquery.value.DateTimeValue;
import java.io.IOException;
import java.util.Date;
import java.util.Properties;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
public abstract class AbstractBackupDescriptor implements BackupDescriptor
{
protected Date date;
public Date getDate()
{
if( date == null ) {
try {
final Properties properties = getProperties();
final String dateStr = properties.getProperty( "date" );
if( dateStr != null ) {
final DateTimeValue dtv = new DateTimeValue( dateStr );
date = dtv.getDate();
}
}
catch( final IOException e ) {
}
catch( final XPathException e ) {
}
if( date == null ) {
// catch unexpected issues by setting the backup time as early as possible
date = new Date( 0 );
}
}
return( date );
}
public boolean before( long timestamp )
{
return( timestamp > getDate().getTime() );
}
public void parse( ContentHandler handler ) throws IOException, SAXException, ParserConfigurationException
{
final SAXParserFactory saxFactory = SAXParserFactory.newInstance();
saxFactory.setNamespaceAware( true );
saxFactory.setValidating( false );
final SAXParser sax = saxFactory.newSAXParser();
final XMLReader reader = sax.getXMLReader();
reader.setContentHandler( handler );
reader.parse( getInputSource() );
}
}