public TransitionImpl DelegateDecision(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
TransitionImpl selectedTransition = null;
try
{
IDecisionHandler decision = (IDecisionHandler) GetDelegate(delegation);
executionContext.SetConfiguration(ParseConfiguration(delegation));
String transitionName = decision.Decide(executionContext);
if ((Object) transitionName == null)
{
throw new SystemException("Decision-delegate for decision '" + executionContext.GetNode() + "' returned null instead of a transition-name : " + decision.GetType().FullName);
}
try
{
Object[] args = new Object[] {executionContext.GetNode().Id, transitionName};
IType[] types = new IType[] {DbType.LONG, DbType.STRING};
selectedTransition = (TransitionImpl) executionContext.DbSession.FindOne(queryFindLeavingTransitionByName, args, types);
}
catch (Exception t)
{
throw new SystemException("couldn't find transition '" + transitionName + "' that was selected by the decision-delegate of activity '" + executionContext.GetNode().Name + "' : " + t.Message);
}
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
return selectedTransition;
}
public void DelegateAction(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
try
{
executionContext.CreateLog(EventType.ACTION);
executionContext.AddLogDetail(new DelegateCallImpl(delegation, typeof (IAction)));
IActionHandler actionHandler = (IActionHandler) GetDelegate(delegation);
executionContext.SetConfiguration(ParseConfiguration(delegation));
actionHandler.Run(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
}
public void DelegateScheduledAction(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
try
{
/* can't add logs because of a integritiy constraint violation...
* can you find why ?
*/
if (executionContext.GetFlow() != null)
{
executionContext.CreateLog(EventType.ACTION);
executionContext.AddLogDetail(new DelegateCallImpl(delegation, typeof (IAction)));
}
IActionHandler actionHandler = (IActionHandler) GetDelegate(delegation);
executionContext.SetConfiguration(ParseConfiguration(delegation));
actionHandler.Run(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
}
public String DelegateAssignment(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
String actorId = null;
try
{
IAssignmentHandler assigner = (IAssignmentHandler) delegation.GetDelegate();
executionContext.SetConfiguration(ParseConfiguration(delegation));
actorId = assigner.SelectActor(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
return actorId;
}
public bool DelegateJoin(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
bool reactivateParent = false;
try
{
IJoinHandler joiner = (IJoinHandler) delegation.GetDelegate();
executionContext.SetConfiguration(ParseConfiguration(delegation));
reactivateParent = joiner.Join(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
return reactivateParent;
}
public void DelegateFork(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
try
{
// delegate the fork
IForkHandler forker = (IForkHandler) delegation.GetDelegate();
executionContext.SetConfiguration(ParseConfiguration(delegation));
forker.Fork(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
}
public Object[] DelegateProcessTermination(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
Object[] completionData = new Object[2];
try
{
IProcessInvocationHandler processInvoker = (IProcessInvocationHandler) delegation.GetDelegate();
log.Debug("collecting results from the sub-process...");
executionContext.SetConfiguration(ParseConfiguration(delegation));
completionData[0] = processInvoker.CollectResults(executionContext);
completionData[1] = processInvoker.GetCompletionTransitionName(executionContext);
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
return completionData;
}
public Object[] DelegateProcessInvocation(DelegationImpl delegation, ExecutionContextImpl executionContext)
{
Object[] invocationData = new Object[2];
try
{
IProcessInvocationHandler processInvoker = (IProcessInvocationHandler) delegation.GetDelegate();
log.Debug("requesting the attributeValues from the process invoker...");
executionContext.SetConfiguration(ParseConfiguration(delegation));
invocationData[0] = processInvoker.GetStartTransitionName(executionContext);
invocationData[1] = processInvoker.GetStartAttributeValues(executionContext);
log.Debug("process invoker specified transition '" + invocationData[0] + "' and supplied attributeValues '" + invocationData[1] + "'");
}
catch (Exception t)
{
HandleException(delegation, executionContext, t);
}
return invocationData;
}
