| public abstract GetOperationName ( ) : String | ||
| return | String | |
public SemanticOperationExecutionException(SemanticOperation action)
{
Debug.WriteLine("\n########################### ERROR " + action.GetOperationName()
+ " FAILED ###########################");
//Console.WriteLine(ERROR_STRING);
}
/**
* main entry to handle semantic operations. FOR loops and IFs are handled directly (they have built-
* in semantics and are not overridable). otherwise it will can the perform() method on the operation
* object.
*
* @param action
* @param parser
* @param infoCollector
*/
public void HandleSemanticOperation(SemanticOperation operation, DocumentParser parser, SemanticsGlobalScope infoCollector)
{
int state = GetOperationState(operation, "state", SemanticOperation.INIT);
if (state == SemanticOperation.FIN || requestWaiting)
{
return;
}
// debug("["+parser+"] semantic operation: " + action.getActionName() + ", SA class: " + action.getClassSimpleName() + "\n");
operation.SemanticOperationHandler = this;
// here state must be INTER or INIT
// if state == INIT, we check pre-conditions
// if state == INTER, because this must have been started, we skip checking pre-conditions
if (state == SemanticOperation.INIT)
{
if (!CheckConditionsIfAny(operation))
{
if (!(operation is IfSemanticOperation))
{
Debug.WriteLine("Semantic operation {0} not taken since (some) pre-requisite conditions are not met", operation);
}
return;
}
}
else
{
Debug.WriteLine("re-entering operations with pre-conditions; checking pre-conditions skipped: " + operation.GetOperationName());
}
operation.SessionScope = infoCollector;
operation.SemanticOperationHandler = this;
operation.DocumentParser = parser;
String operationName = operation.GetOperationName();
try
{
if (SemanticOperationStandardMethods.ForEach.Equals(operationName))
{
HandleForLoop((ForEachSemanticOperation)operation, parser, infoCollector);
}
else if (SemanticOperationStandardMethods.If.Equals(operationName))
{
HandleIf((IfSemanticOperation)operation, parser, infoCollector);
}
else
{
HandleGeneralOperation(operation);
}
}
catch (Exception e)
{
Debug.WriteLine("The action " + operationName
+ " could not be executed. Please see the stack trace for errors.");
}
finally
{
if (!requestWaiting)
{
SetOperationState(operation, "state", SemanticOperation.FIN);
}
}
}
