Examples of com.arjuna.ats.internal.jts.ControlWrapper

com.arjuna.ats.internal.jts.ControlWrapper
This class attempts to mask the local/remote control issue. We try to use local controls directly as much as possible and not register them with the ORB until the last minute. This improves performance *significantly*. At present we only do this for top-level transactions, but extending for nested transactions is straightforward. It also acts as a convenience class for ease of use. Therefore, some Coordinator and Terminator methods may be found directly on this class. Because of the way in which the implementation works, however, some of their signatures may be slightly different. @author Mark Little (mark_little@hp.com) @version $Id: ControlWrapper.java 2342 2006-03-30 13:06:17Z $ @since JTS 2.0.

     */


    public ControlWrapper current (String threadId) throws SystemException
    {
  Object arg = otsCurrent.get(threadId);
  ControlWrapper wrapper = null;


  if (arg != null)
  {
      try
      {

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      jtsLogger.logger.debug(DebugLevel.FUNCTIONS, VisibilityLevel.VIS_PUBLIC,
             com.arjuna.ats.jts.logging.FacilityCode.FAC_OTS, "ContextManager::current ()");
  }


  Object arg = otsCurrent.get(ThreadUtil.getThreadId());
  ControlWrapper wrapper = null;


  if (arg != null)
  {
      try
      {

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  {
      jtsLogger.logger.debug(DebugLevel.FUNCTIONS, VisibilityLevel.VIS_PUBLIC,
             com.arjuna.ats.jts.logging.FacilityCode.FAC_OTS, "ContextManager::popAction ()");
  }


  ControlWrapper action = null;
  Object arg = otsCurrent.get(threadId);


  if (arg != null)
  {
      Stack sl = (Stack) arg;


      try
      {
    /*
     * When we pushed the action we did the check for whether
     * it was local to save time now.
     */


    action = (ControlWrapper) sl.pop();
      }
      catch (EmptyStackException e)
      {
      }


      /*
       * If size now zero we can delete from thread
       * specific data.
       */


      if (sl.size() == 0)
      {
    sl = null;


    otsCurrent.remove(threadId);


    disassociateContext();
      }
  }


  /*
   * Now update action in thread's notion of current if
   * this action is local.
   */


  // Check that action is local and not a proxy.


  if (action != null)
  {
      /*
       * Now update action in thread's notion of current if
       * this action is local.
       */


      // Check that action is local and not a proxy.


      if (action.isLocal())
      {
    /*
     * If transaction is terminated by another thread
     * then our thread-action information may have already
     * been removed from the action.

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   * not commit/abort them. Just because this thread is
   * finished with them does not mean other threads
   * are!
   */


  ControlWrapper ptr = popAction(threadId);


  while (ptr != null)
  {
      ptr = null;

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   * Here until we can make this work with recreate.
   */


  if (false)
  {
      pushAction(new ControlWrapper(cont));


      return true;
  }
  else
  {
      boolean isError = false;


      try
      {
    Coordinator coord = cont.get_coordinator();
    PropagationContext ctx = coord.get_txcontext();


    if (ctx != null)
    {
        /*
         * Depth must be non-zero or we wouldn't be here!
         */


        int depth = ctx.parents.length;


        for (int i = depth -1; i >= 0; i--)
        {
      /*
       * No memory leak as we delete either when suspend
       * is called, or the transaction is terminated.
       */


      Coordinator tmpCoord = ctx.parents[i].coord;
      Terminator tmpTerm = ctx.parents[i].term;


      Control theControl = TransactionFactoryImple.createProxy(tmpCoord, tmpTerm);


      pushAction(new ControlWrapper(theControl));  // takes care of thread/BasicAction for us.
        }


        ctx = null;
    }
    else

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      Control parentControl = actControl.getParentControl();
      Stack hier = new Stack();


      while (parentControl != null)
      {
    hier.push(new ControlWrapper(parentControl));


    actControl = com.arjuna.ArjunaOTS.ActionControlHelper.narrow(parentControl);


    /*
     * Currently assume that entire hierarchy will contain only one
     * type of action, i.e., Arjuna actions or someone elses!
     */


    if (actControl != null)
        parentControl = actControl.getParentControl();
    else
        parentControl = null;
      }


      actControl = null;


      try
      {
    ControlWrapper wrapper = (ControlWrapper) hier.pop();


    while (wrapper != null)
    {
        pushAction(wrapper);

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      ControlImple curr = which.getParentImple();
      Stack hier = new Stack();


      while (curr != null)
      {
    hier.push(new ControlWrapper(curr));


    curr = curr.getParentImple();
      }


      try
      {
    ControlWrapper wrapper = (ControlWrapper) hier.pop();


    while (wrapper != null)
    {
        pushAction(wrapper);

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     * interceptor can do the suspend when the call returns.
     */


    if (ctx.type().kind().value() != TCKind._tk_null)
    {
        ControlWrapper control = null;


        // Is this just a Coordinator, or a full blown context?


        if (ctx.type().kind().value() == TCKind._tk_string)
        {

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    Coordinator theCoordinator = org.omg.CosTransactions.CoordinatorHelper.narrow(obj);


    if (theCoordinator == null)
        throw new BAD_PARAM();


    return new ControlWrapper(TransactionFactoryImple.createProxy(theCoordinator, null));
      }
      else
    return null;
  }
  catch (BAD_PARAM e1)

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    if (OTSImpleManager.localFactory())
    {
        TransactionFactoryImple theFactory = OTSImpleManager.factory();


        return new ControlWrapper(theFactory.recreateLocal(theContext));
    }
    else
    {
        TransactionFactory theFactory = OTSImpleManager.get_factory();


        return new ControlWrapper(theFactory.recreate(theContext));
    }
      }
      catch (SystemException ex)
      {
    if (jtsLogger.loggerI18N.isWarnEnabled())

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com.arjuna.ats.internal.jbossatx.jts.PropagationContextManager

com.arjuna.ats.internal.jta.transaction.jts.TransactionImple

com.arjuna.ats.internal.jta.transaction.jts.TransactionManagerImple

com.arjuna.ats.internal.jts.context.ContextManager

com.arjuna.ats.internal.jts.orbspecific.coordinator.ArjunaTransactionImple

com.arjuna.ats.internal.jts.orbspecific.TransactionFactoryImple

com.arjuna.ats.jts.extensions.AtomicTransaction

com.arjuna.ats.jts.orbspecific.hporb.interceptors.context.ContextClientRequestInterceptorImpl

com.arjuna.ats.jts.orbspecific.hporb.interceptors.context.ContextServerRequestInterceptorImpl

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