/**
* Navigate all the fields of the specified object. If a field is null, it does not get visited.
*/
public void accept(Visitor visitor) {
TypeInfo objTypeInfo = new TypeInfo(objTypePair.type);
if (exclusionStrategy.shouldSkipClass(objTypeInfo.getRawClass())) {
return;
}
boolean visitedWithCustomHandler = visitor.visitUsingCustomHandler(objTypePair);
if (!visitedWithCustomHandler) {
Object obj = objTypePair.getObject();
Object objectToVisit = (obj == null) ? visitor.getTarget() : obj;
if (objectToVisit == null) {
return;
}
objTypePair.setObject(objectToVisit);
visitor.start(objTypePair);
try {
if (objTypeInfo.isArray()) {
visitor.visitArray(objectToVisit, objTypePair.type);
} else if (objTypeInfo.getActualType() == Object.class
&& isPrimitiveOrString(objectToVisit)) {
// TODO(Joel): this is only used for deserialization of "primitives"
// we should rethink this!!!
visitor.visitPrimitive(objectToVisit);
objectToVisit = visitor.getTarget();
} else {
visitor.startVisitingObject(objectToVisit);
ObjectTypePair currObjTypePair = objTypePair.toMoreSpecificType();
Class<?> topLevelClass = new TypeInfo(currObjTypePair.type).getRawClass();
for (Class<?> curr = topLevelClass;
curr != null && !curr.equals(Object.class);
curr = curr.getSuperclass()) {
if (!curr.isSynthetic()) {
navigateClassFields(objectToVisit, curr, visitor);
}
}
}
} finally {
visitor.end(objTypePair);
}
}
}
private void navigateClassFields(Object obj, Class<?> clazz, Visitor visitor) {
Field[] fields = clazz.getDeclaredFields();
AccessibleObject.setAccessible(fields, true);
for (Field f : fields) {
FieldAttributes fieldAttributes = new FieldAttributes(clazz, f);
if (exclusionStrategy.shouldSkipField(fieldAttributes)
|| exclusionStrategy.shouldSkipClass(fieldAttributes.getDeclaredClass())) {
continue; // skip
}
TypeInfo fieldTypeInfo = TypeInfoFactory.getTypeInfoForField(f, objTypePair.type);
Type declaredTypeOfField = fieldTypeInfo.getActualType();
boolean visitedWithCustomHandler =
visitor.visitFieldUsingCustomHandler(fieldAttributes, declaredTypeOfField, obj);
if (!visitedWithCustomHandler) {
if (fieldTypeInfo.isArray()) {
visitor.visitArrayField(fieldAttributes, declaredTypeOfField, obj);
} else {
visitor.visitObjectField(fieldAttributes, declaredTypeOfField, obj);
}
}
}
}