package org.drools.xml.processes;
import java.util.HashSet;
import org.drools.process.core.timer.Timer;
import org.drools.workflow.core.DroolsAction;
import org.drools.workflow.core.impl.ExtendedNodeImpl;
import org.drools.workflow.core.node.EventBasedNode;
import org.drools.xml.BaseAbstractHandler;
import org.drools.xml.ExtensibleXmlParser;
import org.drools.xml.Handler;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class TimerHandler extends BaseAbstractHandler implements Handler {
public TimerHandler() {
if ( (this.validParents == null) && (this.validPeers == null) ) {
this.validParents = new HashSet<Class<?>>();
this.validParents.add( ExtendedNodeImpl.class );
this.validPeers = new HashSet<Class<?>>();
this.validPeers.add( null );
this.allowNesting = false;
}
}
public Object start(final String uri,
final String localName,
final Attributes attrs,
final ExtensibleXmlParser parser) throws SAXException {
parser.startElementBuilder( localName, attrs );
return null;
}
public Object end(final String uri,
final String localName,
final ExtensibleXmlParser parser) throws SAXException {
Element element = parser.endElementBuilder();
EventBasedNode eventBasedNode = (EventBasedNode) parser.getParent();
String id = element.getAttribute("id");
emptyAttributeCheck( localName, "id", id, parser );
String delay = element.getAttribute("delay");
String period = element.getAttribute("period");
Timer timer = new Timer();
timer.setId(new Long(id));
if (delay != null && delay.length() != 0 ) {
timer.setDelay(new Long(delay));
}
if (period != null && period.length() != 0 ) {
timer.setPeriod(new Long(period));
}
org.w3c.dom.Node xmlNode = element.getFirstChild();
DroolsAction action = null;
if (xmlNode instanceof Element) {
Element actionXml = (Element) xmlNode;
action = AbstractNodeHandler.extractAction(actionXml);
}
eventBasedNode.addTimer(timer, action);
return null;
}
@SuppressWarnings("unchecked")
public Class generateNodeFor() {
return null;
}
}