package org.drools.io;
/*
* $Id: DurationHandler.java,v 1.8 2005/02/04 02:13:38 mproctor Exp $
*
* Copyright 2001-2003 (C) The Werken Company. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name "drools" must not be used to endorse or promote products derived
* from this Software without prior written permission of The Werken Company.
* For written permission, please contact bob@werken.com.
*
* 4. Products derived from this Software may not be called "drools" nor may
* "drools" appear in their names without prior written permission of The Werken
* Company. "drools" is a trademark of The Werken Company.
*
* 5. Due credit should be given to The Werken Company. (http://werken.com/)
*
* THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
import java.util.HashSet;
import org.drools.rule.Declaration;
import org.drools.rule.Rule;
import org.drools.smf.Configuration;
import org.drools.smf.DurationFactory;
import org.drools.smf.FactoryException;
import org.drools.smf.SemanticModule;
import org.drools.spi.Condition;
import org.drools.spi.Duration;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
/**
* @author mproctor
*/
class DurationHandler extends BaseAbstractHandler implements Handler
{
DurationHandler( RuleSetReader ruleSetReader )
{
this.ruleSetReader = ruleSetReader;
if ( this.validParents == null && this.validPeers == null )
{
this.validParents = new HashSet( );
this.validParents.add( Rule.class );
this.validPeers = new HashSet( );
this.validPeers.add( Declaration.class );
this.validPeers.add( Condition.class );
this.allowNesting = false;
}
}
public Object start( String uri, String localName, Attributes attrs ) throws SAXException
{
ruleSetReader.startConfiguration( localName, attrs );
return null;
}
public Object end( String uri, String localName ) throws SAXException
{
Configuration config = this.ruleSetReader.endConfiguration( );
SemanticModule module = this.ruleSetReader.lookupSemanticModule( uri,
localName );
DurationFactory factory = module.getDurationFactory( localName );
Duration duration;
try
{
Rule rule = (Rule) this.ruleSetReader.getParent( Rule.class );
duration = factory.newDuration( rule,
this.ruleSetReader.getFactoryContext( ),
config );
rule.setDuration( duration );
}
catch ( FactoryException e )
{
throw new SAXParseException( "error constructing duration",
this.ruleSetReader.getLocator( ), e );
}
return duration;
}
public Class generateNodeFor()
{
return Condition.class;
}
}