/**
* 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 beginning of evaluation of an {@link Expression}.
*
* @param event VMObservableEvent event for expression
*/
private void startExpressionEvaluation(VMObservableEvent event) {
Expression expression = (Expression) event.getObject();
ComponentThread thread = event.getThread();
double startTime = event.getTime();
AbstractEventNode<?> parentNode = peekEventNode(thread);
ExpressionEvaluationEventNode eventNode =
(ExpressionEvaluationEventNode)
EventNodeFactory.createEventNode(expression, thread, startTime, parentNode);
// Add expression evaluation to ExpressionStatementEventNode
if (parentNode instanceof ExpressionStatementEventNode) {
((ExpressionStatementEventNode) parentNode).addExpressionEvaluationNode(eventNode);
}
// Handle expression evaluation for ConditionalEventNode
else if (parentNode instanceof ConditionalStatementEventNode) {
((ConditionalStatementEventNode) parentNode).addConditionalEvaluation(eventNode);
}
// Handle expression evaluation for CountLoopEventNode
else if (parentNode instanceof CountLoopEventNode) {
((CountLoopEventNode) parentNode).setCountExpressionNode(eventNode);
}
// Handle expression evaluation for EachInArrayTogetherEventNode
else if (parentNode instanceof EachInArrayTogetherEventNode) {
((EachInArrayTogetherEventNode) parentNode).setArrayExpressionNode(eventNode);
}
// Handle expression evaluation for ForEachInArrayLoopEventNode
else if (parentNode instanceof ForEachInArrayLoopEventNode) {
((ForEachInArrayLoopEventNode) parentNode).setArrayExpressionNode(eventNode);
}
// Handle expression evaluation for WhileLoopEventNode
else if (parentNode instanceof WhileLoopEventNode) {
((WhileLoopEventNode) parentNode).addConditionalEvaluation(eventNode);
}
// Handle expression evaluation for LocalDeclarationStatementEventNode
else if (parentNode instanceof LocalDeclarationStatementEventNode) {
((LocalDeclarationStatementEventNode) parentNode).setInitializerExpression(eventNode);
}
// Handle expression evaluation for ReturnStatementEventNode
else if (parentNode instanceof ReturnStatementEventNode) {
((ReturnStatementEventNode) parentNode).setExpressionNode(eventNode);
}
// Handle expression evaluation for ExpressionEvaluationEventNode
else if (parentNode instanceof ExpressionEvaluationEventNode) {
// pass - handled on endExpressionEvaluation
} else {
throw new ExecutionObserverException("Parent node invalid:" + parentNode.toString(), event);
}
pushEventNode(eventNode, false);
}
/**
* Handles ending execution of Container statement ( {@link AbstractStatementWithBody} or {@link
* BlockStatement}).
*
* @param event {@link VMObservableEvent} event for container type statement
*/
private void endContainer(VMObservableEvent event) {
Statement statement = (Statement) event.getObject();
ComponentThread thread = event.getThread();
double endTime = event.getTime();
AbstractEventNode<?> eventNode = popEventNode(thread, true);
if ((eventNode != null)
&& (eventNode.getAstNode() == statement)
&& (eventNode.getThread() == thread)) {
eventNode.setEndTime(endTime);
} else {
throw new ExecutionObserverException("EventNode invalid: " + eventNode.toString(), event);
}
}
private void startLambdaInvocation(VMObservableEvent event) {
org.lgna.project.ast.UserLambda lambda = (UserLambda) event.getObject();
ComponentThread thread = event.getThread();
double startTime = event.getTime();
org.lgna.project.ast.AbstractMethod method = (AbstractMethod) event.getProperties()[0];
// We ignore scene activation
if (!method.getName().contentEquals("sceneActivated")) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(lambda, thread, startTime, null);
((LambdaEventNode) eventNode).setInvokingEventMethod(method);
pushEventNode(eventNode, false);
}
}
/**
* Handles beginning execution of a {@link Statement}.
*
* @param event {@link VMObservableEvent} event for statement
*/
private void startStatement(VMObservableEvent event) {
Statement statement = (Statement) event.getObject();
ComponentThread thread = event.getThread();
double startTime = event.getTime();
AbstractEventNode<?> parentNode = peekEventNode(getThreadForNode(statement, thread));
// A Statement should always have a parent node (which can only be a ContainerEventNode)
if (parentNode instanceof ContainerEventNode) {
ContainerEventNode<?> containerNode = (ContainerEventNode<?>) parentNode;
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, containerNode);
pushEventNode(eventNode, false);
} else {
throw new ExecutionObserverException("Parent node invalid: " + parentNode.toString(), event);
}
}
private void endLambdaInvocation(VMObservableEvent event) {
org.lgna.project.ast.UserLambda lambda = (UserLambda) event.getObject();
org.lgna.project.ast.AbstractMethod method = (AbstractMethod) event.getProperties()[0];
ComponentThread thread = event.getThread();
double endTime = event.getTime();
if (!method.getName().contentEquals("sceneActivated")) {
AbstractEventNode<?> eventNode = popEventNode(thread, false);
lambdaEventNodes.add((LambdaEventNode) eventNode);
if ((eventNode != null)
&& (eventNode.getAstNode() == lambda)
&& (eventNode.getThread() == thread)) {
eventNode.setEndTime(endTime);
} else {
throw new ExecutionObserverException("EventNode invalid: " + eventNode.toString(), event);
}
}
}
/**
* Handles beginning execution of container statement ( {@link AbstractStatementWithBody} or
* {@link BlockStatement}).
*
* @param event {@link VMObservableEvent} event for container type statement
*/
private void startContainer(VMObservableEvent event) {
Statement statement = (Statement) event.getObject();
ComponentThread thread = event.getThread();
double startTime = event.getTime();
AbstractEventNode<?> parentNode = peekEventNode(getThreadForNode(statement, thread));
// Root case
if (parentNode == null) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, null);
this.rootEventNode = eventNode;
pushEventNode(eventNode, true);
} else if (parentNode instanceof ConditionalStatementEventNode) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, parentNode);
pushEventNode(eventNode, true);
} else if (parentNode instanceof ContainerEventNode) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, parentNode);
pushEventNode(eventNode, true);
} else if (parentNode instanceof ExpressionStatementEventNode) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, parentNode);
((ExpressionStatementEventNode) parentNode)
.addUserMethodEventNode((ContainerEventNode<?>) eventNode);
pushEventNode(eventNode, true);
} else if (parentNode instanceof ExpressionEvaluationEventNode) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, parentNode);
pushEventNode(eventNode, true);
} else if (parentNode instanceof LambdaEventNode) {
AbstractEventNode<?> eventNode =
EventNodeFactory.createEventNode(statement, thread, startTime, parentNode);
((LambdaEventNode) parentNode).addBodyEventNode((ContainerEventNode<?>) eventNode);
pushEventNode(eventNode, true);
} else {
throw new ExecutionObserverException("Parent node invalid: " + parentNode.toString(), event);
}
}
/**
* 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);
}
}
/**
* Called when a new {@link VMObservableEvent} is passed. Executes the correct method based on the
* {@link VMMessage} for the event.
*
* @param event {@link VMObservableEvent} passed from {@link VMObserverManager}
*/
@Override
public synchronized void update(VMObservableEvent event) {
VMMessage eventMsg = event.getVMMessage();
if (eventMsg == VMMessage.START_RECORDING) {
this.isRecording = true;
} else if (eventMsg == VMMessage.STOP_RECORDING) {
this.isRecording = false;
} else if (eventMsg == VMMessage.CREATE_INSTANCE) {
if ((event.getProperties().length == 1) && (event.getProperties()[0] instanceof UserField)) {
UserField field = (UserField) event.getProperties()[0];
Object instance = event.getObject();
if (instance instanceof UserInstance) {
if (((UserInstance) instance).getType().isAssignableTo(SScene.class)) {
this.sceneInstance = (UserInstance) instance;
}
instance = ((UserInstance) instance).getJavaInstance();
}
this.instanceMap.put(instance, field);
}
}
// Lambda invocations come from eventListeners and are
// recorded outside the default record loop
if (eventMsg == VMMessage.START_LAMBDA_INVOKE) {
if (event.getObject() instanceof UserLambda) {
startLambdaInvocation(event);
} else {
throw new ExecutionObserverException(event);
}
} else if (eventMsg == VMMessage.END_LAMBDA_INVOKE) {
if (event.getObject() instanceof UserLambda) {
endLambdaInvocation(event);
} else {
throw new ExecutionObserverException(event);
}
}
// Should we record this message?
boolean shouldRecord = isRecording();
if (!shouldRecord) {
if (event.getThread() != null) {
shouldRecord = event.getThread().getDescription().contentEquals("eventThread");
}
}
synchronized (this) {
if (shouldRecord) {
switch (eventMsg) {
case RESET:
reset();
break;
case START_INVOKE_ENTRY_POINT:
this.hasInvokedEntryPoint = true;
break;
case START_EXP_EVAL:
if (this.hasInvokedEntryPoint) {
if (event.getObject() instanceof Expression) {
// Non-function method invocations are handled separately
if (event.getObject() instanceof MethodInvocation) {
MethodInvocation methodInvocation = (MethodInvocation) event.getObject();
if (methodInvocation.method.getValue().isFunction()) {
startExpressionEvaluation(event);
}
} else {
startExpressionEvaluation(event);
}
} else {
throw new ExecutionObserverException(event);
}
}
break;
case END_EXP_EVAL:
if (this.hasInvokedEntryPoint) {
if (event.getObject() instanceof Expression) {
// Non-function method invocations are handled separately
if (event.getObject() instanceof MethodInvocation) {
MethodInvocation methodInvocation = (MethodInvocation) event.getObject();
if (methodInvocation.method.getValue().isFunction()) {
endExpressionEvaluation(event);
}
} else {
endExpressionEvaluation(event);
}
} else {
throw new ExecutionObserverException(event);
}
}
break;
case START_METHOD_INVOKE:
if (this.hasInvokedEntryPoint) {
if (event.getObject() instanceof MethodInvocation) {
startMethodInvocation(event);
} else {
throw new ExecutionObserverException(event);
}
}
break;
case START_STMT_EXEC:
if (this.hasInvokedEntryPoint) {
if (event.getObject() instanceof BlockStatement) {
// pass
// } else if( event.getObject() instanceof Comment ) {
// //pass
// } else {
} else {
startStatement(event);
}
}
break;
case END_STMT_EXEC:
if (this.hasInvokedEntryPoint) {
if (event.getObject() instanceof BlockStatement) {
// //pass
// } else if( event.getObject() instanceof Comment ) {
// //pass
// } else {
} else {
endStatement(event);
}
}
break;
case START_CONTAINER:
if (this.hasInvokedEntryPoint) {
if ((event.getObject() instanceof AbstractStatementWithBody)
|| (event.getObject() instanceof BlockStatement)) {
startContainer(event);
} else {
throw new ExecutionObserverException(event);
}
}
break;
case END_CONTAINER:
if (this.hasInvokedEntryPoint) {
if ((event.getObject() instanceof AbstractStatementWithBody)
|| (event.getObject() instanceof BlockStatement)) {
endContainer(event);
} else {
throw new ExecutionObserverException(event);
}
}
break;
}
}
}
}
