public static Vector<Expression> extractPrimitives(String anExpression)
throws ParseException, TypeMismatchException {
final Hashtable<String, Expression> returnedHash = new Hashtable<String, Expression>();
try {
Expression e = ExpressionParser.parse(anExpression);
e.transform(
new ExpressionTransformer() {
@Override
public Expression performTransformation(Expression e) throws TransformException {
if (e instanceof BindingValueAsExpression) {
String variableName = ((BindingValueAsExpression) e).toString();
Expression returned = returnedHash.get(variableName);
if (returned == null) {
returned = new Variable(variableName);
returnedHash.put(variableName, returned);
}
return returned;
}
return e;
}
});
} catch (org.openflexo.antar.expr.parser.ParseException e1) {
e1.printStackTrace();
} catch (TransformException e) {
e.printStackTrace();
}
/*DefaultExpressionParser parser = new DefaultExpressionParser();
Expression expression = parser.parse(anExpression, bindable);
expression.evaluate(new EvaluationContext(new ExpressionParser.DefaultConstantFactory(), new VariableFactory() {
@Override
public Expression makeVariable(Word value, Bindable bindable) {
Expression returned = returnedHash.get(value.getValue());
if (returned == null) {
returned = new Variable(value.getValue());
returnedHash.put(value.getValue(), returned);
}
return returned;
}
}, new FunctionFactory() {
@Override
public Expression makeFunction(String functionName, List<Expression> args, Bindable bindable) {
StringBuffer key = new StringBuffer();
key.append(functionName + "(");
for (int i = 0; i < args.size(); i++) {
key.append((i > 0 ? "," : "") + "arg" + i);
}
key.append(")");
Expression returned = returnedHash.get(key);
if (returned == null) {
returned = new Function(functionName, args);
returnedHash.put(key.toString(), returned);
}
return returned;
}
}), bindable);
*/
Vector<Expression> returned = new Vector<Expression>();
for (String v : returnedHash.keySet()) {
returned.add(returnedHash.get(v));
}
return returned;
}
protected void updateDependancies() {
if (getOwner() instanceof FIBComponent) {
if (binding == null) {
return;
}
Vector<Expression> primitives;
try {
primitives = Expression.extractPrimitives(binding.getStringRepresentation());
FIBComponent component = (FIBComponent) getOwner();
FIBComponent rootComponent = component.getRootComponent();
Iterator<FIBComponent> subComponents = rootComponent.subComponentIterator();
while (subComponents.hasNext()) {
FIBComponent next = subComponents.next();
if (next != getOwner()) {
if (next instanceof FIBWidget
&& ((FIBWidget) next).getData() != null
&& ((FIBWidget) next).getData().isSet()) {
String data = ((FIBWidget) next).getData().toString();
if (data != null) {
for (Expression p : primitives) {
String primitiveValue = null;
if (p instanceof Variable) {
primitiveValue = ((Variable) p).getName();
}
if (p instanceof Function) {
primitiveValue = ((Function) p).getName();
}
if (primitiveValue != null && primitiveValue.startsWith(data)) {
try {
component.declareDependantOf(next);
} catch (DependancyLoopException e) {
logger.warning(
"DependancyLoopException raised while declaring dependancy (data lookup)"
+ "in the context of binding: "
+ binding.getStringRepresentation()
+ " primitive: "
+ primitiveValue
+ " component: "
+ component
+ " dependancy: "
+ next
+ " data: "
+ data
+ " message: "
+ e.getMessage());
}
}
}
}
}
if (next.getName() != null) {
for (Expression p : primitives) {
String primitiveValue = null;
if (p instanceof Variable) {
primitiveValue = ((Variable) p).getName();
}
if (p instanceof Function) {
primitiveValue = ((Function) p).getName();
}
if (primitiveValue != null
&& StringUtils.isNotEmpty(next.getName())
&& primitiveValue.startsWith(next.getName())) {
try {
component.declareDependantOf(next);
} catch (DependancyLoopException e) {
logger.warning(
"DependancyLoopException raised while declaring dependancy (name lookup)"
+ "in the context of binding: "
+ binding.getStringRepresentation()
+ " primitive: "
+ primitiveValue
+ " component: "
+ component
+ " dependancy: "
+ next
+ " message: "
+ e.getMessage());
}
}
}
}
}
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (TypeMismatchException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}