/**
* Handles beginning execution of {@link MethodInvocation}.
*
* @param event {@link VMObservableEvent} event for invocation
*/
private void startMethodInvocation(VMObservableEvent event) {
MethodInvocation invocation = (MethodInvocation) event.getObject();
ComponentThread thread = event.getThread();
Object instance = event.getProperties()[1];
UserField field = getUserFieldForInstance(instance);
AbstractEventNode<?> parentNode = peekEventNode(getThreadForNode(invocation, thread));
// Add instance and referencing field to parent node
if (parentNode instanceof ExpressionStatementEventNode) {
ExpressionStatementEventNode statementNode = (ExpressionStatementEventNode) parentNode;
if ((instance != null) & (field != null)) {
statementNode.setCallerInstance(instance);
statementNode.setCallerField(field);
}
if ((instance != null) & (field != null)) {
notifyListenersOfStart(statementNode); // Now that caller has been set, notify listeners
}
if (invocation.method.getValue() instanceof UserMethod) {
UserMethod userMethod = (UserMethod) invocation.method.getValue();
if (!userMethod.isFunction()) {
statementNode.setUserMethod(userMethod);
}
}
} else if (parentNode instanceof ExpressionEvaluationEventNode) {
if (field != null) {
((ExpressionEvaluationEventNode) parentNode).setValueField(field);
}
}
}
/**
* Handles the ending of evaluation of an {@link Expression}.
*
* @param event VMObservableEvent event for expression
*/
private void endExpressionEvaluation(VMObservableEvent event) {
Expression expression = (Expression) event.getObject();
ComponentThread thread = event.getThread();
double endTime = event.getTime();
Object value = event.getProperties()[0];
AbstractEventNode<?> eventNode = popEventNode(thread, false);
if ((eventNode != null)
&& (eventNode.getAstNode() == expression)
&& (eventNode.getThread() == thread)) {
eventNode.setEndTime(endTime);
((ExpressionEvaluationEventNode) eventNode).setValue(value);
UserField field = this.getUserFieldForInstance(value);
if (field != null) {
((ExpressionEvaluationEventNode) eventNode).setValueField(field);
}
} else {
throw new ExecutionObserverException("EventNode invalid: " + eventNode.toString(), event);
}
}