Package com.arjuna.mwlabs.wst11.at

Source Code of com.arjuna.mwlabs.wst11.at.RegistrarImple

package com.arjuna.mwlabs.wst11.at;

import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.mw.wsas.activity.ActivityHierarchy;
import com.arjuna.mw.wsas.exceptions.SystemException;
import com.arjuna.mw.wscf.exceptions.ProtocolNotRegisteredException;
import com.arjuna.mw.wscf11.model.twophase.CoordinatorManagerFactory;
import com.arjuna.mw.wscf.model.twophase.api.CoordinatorManager;
import com.arjuna.mw.wstx.logging.wstxLogger;
import com.arjuna.mwlabs.wscf.model.twophase.arjunacore.ACCoordinator;
import com.arjuna.mwlabs.wscf.model.twophase.arjunacore.subordinate.SubordinateCoordinator;
import com.arjuna.mwlabs.wst11.at.participants.CompletionCoordinatorImple;
import com.arjuna.mwlabs.wst.at.participants.DurableTwoPhaseCommitParticipant;
import com.arjuna.mwlabs.wst.at.participants.VolatileTwoPhaseCommitParticipant;
import com.arjuna.webservices11.wsat.processors.CompletionCoordinatorProcessor;
import com.arjuna.webservices11.wsat.AtomicTransactionConstants;
import com.arjuna.webservices11.wsarj.InstanceIdentifier;
import com.arjuna.webservices11.ServiceRegistry;
import com.arjuna.wsc.*;
import com.arjuna.wst11.CompletionCoordinatorParticipant;
import com.arjuna.wst11.stub.Durable2PCStub;
import com.arjuna.wst11.stub.Volatile2PCStub;
import com.arjuna.wsc11.RegistrarMapper;
import com.arjuna.wsc11.Registrar;

import javax.xml.ws.wsaddressing.W3CEndpointReference;
import javax.xml.ws.wsaddressing.W3CEndpointReferenceBuilder;
import java.util.HashMap;
import java.util.concurrent.ConcurrentHashMap;

public class RegistrarImple implements Registrar
{
  public RegistrarImple()
        throws ProtocolNotRegisteredException, SystemException
    {
    _coordManager = CoordinatorManagerFactory.coordinatorManager();

    // register with mapper using tx id as protocol identifier.
        final com.arjuna.wsc11.RegistrarMapper mapper = RegistrarMapper.getFactory() ;

    mapper.addRegistrar(AtomicTransactionConstants.WSAT_SUB_PROTOCOL_DURABLE_2PC, this);
    mapper.addRegistrar(AtomicTransactionConstants.WSAT_SUB_PROTOCOL_VOLATILE_2PC, this);
    mapper.addRegistrar(AtomicTransactionConstants.WSAT_SUB_PROTOCOL_COMPLETION, this);
  }

  /**
   * Called when a registrar is added to a register mapper. This method will
   * be called multiple times if the registrar is added to multiple register
   * mappers or to the same register mapper with different protocol
   * identifiers.
   *
   * @param protocolIdentifier
   *            the protocol identifier
   */

  public void install (final String protocolIdentifier)
  {
  }

  /**
   * Registers the interest of participant in a particular protocol.
   *
   * @param participantProtocolService
   *            the address of the participant protocol service
   * @param protocolIdentifier
   *            the protocol identifier
   *
   * @return the PortReference of the coordinator protocol service
   *
   * @throws com.arjuna.wsc.AlreadyRegisteredException
     *             if the participant is already registered for this
   *             coordination protocol under this activity identifier
   * @throws com.arjuna.wsc.InvalidProtocolException
     *             if the coordination protocol is not supported
   * @throws com.arjuna.wsc.InvalidStateException
     *             if the state of the coordinator no longer allows registration
   *             for this coordination protocol
   * @throws com.arjuna.wsc.NoActivityException
     *             if the activity does not exist.
   *
   * @message com.arjuna.mwlabs.wst.at.Registrar11Imple_1
   *          [com.arjuna.mwlabs.wst.at.Registrar11Imple_1] - Invalid type URI: < {0} ,
   *          {1} >
   */

  /*
   * TODO
   *
   * See comment at head of class definition. We shouldn't have to rely on
   * thread-to-activity association to register a participant. We currently do
   * because the code is based on old WS-CAF models that are no longer
   * applicable. This needs updating!
   */
  public W3CEndpointReference register(final W3CEndpointReference participantProtocolService,
        final String protocolIdentifier, final InstanceIdentifier instanceIdentifier, final boolean isSecure)
      throws AlreadyRegisteredException, InvalidProtocolException,
            InvalidStateException, NoActivityException
  {
    Object tx = _hierarchies.get(instanceIdentifier.getInstanceIdentifier());

    if (tx instanceof SubordinateCoordinator)
      return registerWithSubordinate((SubordinateCoordinator)tx, participantProtocolService, protocolIdentifier, isSecure);

    ActivityHierarchy hier = (ActivityHierarchy) tx;

    if (hier == null)
      throw new NoActivityException();

    try
    {
      _coordManager.resume(hier);
    }
    catch (com.arjuna.mw.wsas.exceptions.InvalidActivityException ex)
    {
      throw new NoActivityException();
    }
    catch (SystemException ex)
    {
      throw new InvalidProtocolException();
    }

    // TODO check for AlreadyRegisteredException

    if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_DURABLE_2PC.equals(protocolIdentifier))
    {
      // enlist participant that wraps the requester URI.
      final String participantId = "D" + new Uid().stringForm();

      try
      {
                final Durable2PCStub participantStub = new Durable2PCStub(participantId, participantProtocolService) ;
        _coordManager.enlistParticipant(new DurableTwoPhaseCommitParticipant(participantStub, participantId));

        _coordManager.suspend();

        return getCoordinator(participantId, isSecure) ;
      }
      catch (Exception ex)
      {
        throw new InvalidStateException();
      }
    }
    else if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_VOLATILE_2PC.equals(protocolIdentifier))
    {
      // enlist participant that wraps the requester URI.
      final String participantId = "V" + new Uid().stringForm();

      try
      {
                final Volatile2PCStub participantStub = new Volatile2PCStub(participantId, participantProtocolService) ;
        _coordManager.enlistSynchronization(new VolatileTwoPhaseCommitParticipant(participantStub)) ;

        _coordManager.suspend();

        return getCoordinator(participantId, isSecure) ;
      }
      catch (Exception ex)
      {
        throw new InvalidStateException();
      }
    }
    else if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_COMPLETION.equals(protocolIdentifier))
    {
      try
      {
                final CompletionCoordinatorParticipant participant = new CompletionCoordinatorImple(_coordManager, hier, true, participantProtocolService) ;
                CompletionCoordinatorProcessor.getProcessor().activateParticipant(participant, instanceIdentifier.getInstanceIdentifier()) ;

        _coordManager.suspend();

        return getCompletionCoordinator(instanceIdentifier, isSecure) ;
      }
      catch (Exception ex)
      {
        ex.printStackTrace();

        throw new InvalidStateException(ex.toString());
      }
    }
    else
    {
      wstxLogger.arjLoggerI18N.warn("com.arjuna.mwlabs.wst.at.Registrar11Imple_1", new Object[]
      { AtomicTransactionConstants.WSAT_PROTOCOL, protocolIdentifier });

      throw new InvalidProtocolException();
    }
  }

    /**
   * Called when a registrar is removed from a register mapper. This method
   * will be called multiple times if the registrar is removed from multiple
   * register mappers or from the same register mapper with different protocol
   * identifiers.
   *
   * @param protocolIdentifier
   *            the protocol identifier
   */
  public void uninstall(final String protocolIdentifier)
  {
  }

  public final void associate () throws Exception
  {
    // TODO colocation won't do suspend

    String txIdentifier = _coordManager.identifier().toString();
    ActivityHierarchy hier = _coordManager.suspend();

    _hierarchies.put(txIdentifier, hier);
  }

  public final void associate (ACCoordinator transaction) throws Exception
  {
    String txIdentifier = transaction.get_uid().stringForm();

    _hierarchies.put(txIdentifier, transaction);
  }

  public final void disassociate (String txIdentifier) throws Exception
  {
    _hierarchies.remove(txIdentifier);
  }

  private final W3CEndpointReference registerWithSubordinate(final SubordinateCoordinator theTx,
        final W3CEndpointReference participantProtocolService, final String protocolIdentifier,
        final boolean isSecure)
      throws AlreadyRegisteredException, InvalidProtocolException,
      InvalidStateException, NoActivityException
    {
    if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_DURABLE_2PC.equals(protocolIdentifier))
    {
      // enlist participant that wraps the requester URI.
            final String participantId = "D" + new Uid().stringForm();

            try
            {
                final Durable2PCStub participantStub = new Durable2PCStub(participantId, participantProtocolService) ;
                theTx.enlistParticipant(new DurableTwoPhaseCommitParticipant(participantStub, participantId));

                return getCoordinator(participantId, isSecure) ;
            }
            catch (Exception ex)
            {
                throw new InvalidStateException();
            }
    }
    else if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_VOLATILE_2PC.equals(protocolIdentifier))
    {
      // enlist participant that wraps the requester URI.
            final String participantId = "V" + new Uid().stringForm();

            try
            {
                final Volatile2PCStub participantStub = new Volatile2PCStub(participantId, participantProtocolService) ;
                theTx.enlistSynchronization(new VolatileTwoPhaseCommitParticipant(participantStub)) ;

                return getCoordinator(participantId, isSecure) ;
            }
            catch (Exception ex)
            {
                throw new InvalidStateException();
            }
    }
    else if (AtomicTransactionConstants.WSAT_SUB_PROTOCOL_COMPLETION.equals(protocolIdentifier))
    {
      // not allowed for subordinate transactions!

      throw new InvalidStateException();
    }
    else
    {
      wstxLogger.arjLoggerI18N.warn("com.arjuna.mwlabs.wst.at.Registrar11Imple_1", new Object[]
      { AtomicTransactionConstants.WSAT_PROTOCOL, protocolIdentifier });

      throw new InvalidProtocolException();
    }
  }

    private W3CEndpointReference getCompletionCoordinator(final InstanceIdentifier instanceIdentifier, final boolean isSecure)
    {
        W3CEndpointReferenceBuilder builder = new W3CEndpointReferenceBuilder();
        String address = ServiceRegistry.getRegistry().getServiceURI(AtomicTransactionConstants.COMPLETION_COORDINATOR_SERVICE_NAME, isSecure);
        builder.serviceName(AtomicTransactionConstants.COMPLETION_COORDINATOR_SERVICE_QNAME);
        builder.endpointName(AtomicTransactionConstants.COMPLETION_COORDINATOR_PORT_QNAME);
        builder.address(address);
        InstanceIdentifier.setEndpointInstanceIdentifier(builder, instanceIdentifier);
        return builder.build();
    }

    private W3CEndpointReference getCoordinator(final String participantId, final boolean isSecure)
    {
        W3CEndpointReferenceBuilder builder = new W3CEndpointReferenceBuilder();
        String address = ServiceRegistry.getRegistry().getServiceURI(AtomicTransactionConstants.COORDINATOR_SERVICE_NAME, isSecure);
        builder.serviceName(AtomicTransactionConstants.COORDINATOR_SERVICE_QNAME);
        builder.endpointName(AtomicTransactionConstants.COORDINATOR_PORT_QNAME);
        builder.address(address);
        InstanceIdentifier.setEndpointInstanceIdentifier(builder, participantId);
        return builder.build();
    }

  private CoordinatorManager _coordManager = null;
  private ConcurrentHashMap _hierarchies = new ConcurrentHashMap();
}
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