package org.jboss.jbossts.xts10.recovery.participant.at;
import com.arjuna.wst.Durable2PCParticipant;
import com.arjuna.wst.messaging.engines.ParticipantEngine;
import com.arjuna.ats.arjuna.state.OutputObjectState;
import com.arjuna.ats.arjuna.state.InputObjectState;
import com.arjuna.webservices.wsaddr.EndpointReferenceType;
import com.arjuna.webservices.wsat.State;
import com.arjuna.webservices.wsat.processors.ParticipantProcessor;
import com.arjuna.webservices.util.StreamHelper;
import javax.xml.stream.*;
import javax.xml.namespace.QName;
import java.io.StringWriter;
import java.io.IOException;
import java.io.StringReader;
/**
* recovery record specific to WS-AT 1.0 protocol participants. this implements the behaviours
* necessary to save and restore a 1.0 participant to or from the TX object store
*/
public class ATParticipantRecoveryRecord extends org.jboss.jbossts.xts.recovery.participant.at.ATParticipantRecoveryRecord {
/**
* constructor used during prepare processing to create an AT 1.0 participant record
* for saving to the object store
* @param id the id of the application-specific participant
* @param participant the application-specific participant
* @param
*/
public ATParticipantRecoveryRecord(String id, Durable2PCParticipant participant, EndpointReferenceType endpoint)
{
super(id, participant);
this.endpoint = endpoint;
}
/**
* constructor used during recovery processing to create a record whose contents will be
* recovered from the object store
*/
public ATParticipantRecoveryRecord()
{
super(null, null);
}
/**
* save the endpoint reference to the coordinator for this participant
*/
protected void saveEndpointReference(OutputObjectState oos) throws IOException, XMLStreamException{
// save an XML representation of the endpoint
XMLOutputFactory factory = XMLOutputFactory.newInstance();
StringWriter stringWriter = new StringWriter();
XMLStreamWriter writer = factory.createXMLStreamWriter(stringWriter);
StreamHelper.writeStartElement(writer, QNAME_TWO_PC_COORDINATOR) ;
endpoint.writeContent(writer);
StreamHelper.writeEndElement(writer, null, null) ;
writer.close();
oos.packString(stringWriter.toString());
}
/**
* restore the endpoint reference to the coordinator for this participant
*/
protected void restoreEndpointReference(InputObjectState ios) throws IOException, XMLStreamException{
// restore and parse the XML representation of the endpoint
String xmlEndpoint = ios.unpackString();
StringReader stringReader = new StringReader(xmlEndpoint);
XMLInputFactory factory = XMLInputFactory.newInstance();
XMLStreamReader reader = factory.createXMLStreamReader(stringReader);
StreamHelper.checkNextStartTag(reader, QNAME_TWO_PC_COORDINATOR) ;
endpoint = new EndpointReferenceType(reader);
}
/**
* create a participant engine to manage commit or rollback processing for the
* participant and install it in the active participants table
*/
public void activate() {
ParticipantEngine engine = new ParticipantEngine(participant, id, State.STATE_PREPARED_SUCCESS, endpoint, true);
ParticipantProcessor.getProcessor().activateParticipant(engine, getId());
engine.recovery();
}
/**
* test whether a participant is currently activated with the id of this recovery record.
*
* @return true if a participant is currently activated with the id of this recovery record
*/
public boolean isActive()
{
return ParticipantProcessor.getProcessor().isActive(getId());
}
private static final QName QNAME_TWO_PC_COORDINATOR = new QName("twoPCCoordinator") ;
private EndpointReferenceType endpoint;
}