public static Object[] isSimpleGeneric(Type type, ClassTypeResolver classTypeResolver)
throws ModelDriverException {
Object[] result = new Object[3];
result[0] = false;
result[1] = null;
result[2] = null;
if (type.isArray()
|| type.isPrimitive()
|| !type.isParameterized()
|| (type.isParameterized() && type.getTypeArguments().size() != 1)) {
return result;
}
Type<?> argument = ((List<Type>) type.getTypeArguments()).get(0);
if (!isSimpleClass(argument)) {
return result;
}
try {
String outerClass = classTypeResolver.getFullTypeName(type.getName());
String argumentClass = classTypeResolver.getFullTypeName(argument.getName());
result[0] = true;
result[1] = outerClass;
result[2] = argumentClass;
return result;
} catch (ClassNotFoundException e) {
throw new ModelDriverException(
"Class could not be resolved for name: " + type.getName() + ". " + e.getMessage(), e);
}
}
/**
* @return Return true if the given type can be managed by the driver, and subsequently by the UI.
* <p>E.g. of managed types are: int, Integer, java.lang.Integer, org.kie.SomeClass,
* List<Integer>, java.util.List<org.kie.SomeClass>
* <p>e.g. of not manged types are: int[], java.util.List<List<String>>, List<Map<String,
* org.kie.SomeClass>>
*/
public static boolean isManagedType(Type type, ClassTypeResolver classTypeResolver)
throws ModelDriverException {
// quickest checks first.
if (type.isPrimitive()) {
return true;
}
if (type.isArray()) {
return false;
}
if (type.isParameterized() && type.getTypeArguments().size() > 1) {
return false;
}
try {
Class<?> clazz = classTypeResolver.resolveType(type.getName());
if (clazz.isAnonymousClass() || clazz.isLocalClass() || clazz.isMemberClass()) {
return false;
}
if (type.isParameterized()) {
Class<?> bag = classTypeResolver.resolveType(type.getName());
if (!Collection.class.isAssignableFrom(bag)) {
return false;
}
return isSimpleClass(((List<Type>) type.getTypeArguments()).get(0));
}
return true;
} catch (ClassNotFoundException e) {
throw new ModelDriverException(
"Class could not be resolved for name: " + type.getName() + ". " + e.getMessage(), e);
}
}
public static boolean isSimpleClass(Type<?> type) {
return !type.isArray() && !type.isPrimitive() && !type.isParameterized();
}