// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.petite.resolver;
import jodd.introspector.ClassDescriptor;
import jodd.introspector.ClassIntrospector;
import jodd.introspector.FieldDescriptor;
import jodd.petite.InjectionPointFactory;
import jodd.petite.SetInjectionPoint;
import jodd.petite.meta.PetiteInject;
import jodd.util.ReflectUtil;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* Resolves collection fields.
*/
public class SetResolver {
protected final InjectionPointFactory injectionPointFactory;
public SetResolver(InjectionPointFactory injectionPointFactory) {
this.injectionPointFactory = injectionPointFactory;
}
/**
* Resolves all collections for given type.
*/
public SetInjectionPoint[] resolve(Class type, boolean autowire) {
// lookup fields
ClassDescriptor cd = ClassIntrospector.lookup(type);
List<SetInjectionPoint> list = new ArrayList<SetInjectionPoint>();
FieldDescriptor[] allFields = cd.getAllFieldDescriptors();
for (FieldDescriptor fieldDescriptor : allFields) {
Field field = fieldDescriptor.getField();
PetiteInject ref = field.getAnnotation(PetiteInject.class);
if ((autowire == false) && (ref == null)) {
continue;
}
Class fieldType = field.getType();
if (fieldType != Collection.class && !ReflectUtil.isSubclass(fieldType, Collection.class)) {
continue;
}
list.add(injectionPointFactory.createSetInjectionPoint(field));
}
SetInjectionPoint[] fields;
if (list.isEmpty()) {
fields = SetInjectionPoint.EMPTY;
} else {
fields = list.toArray(new SetInjectionPoint[list.size()]);
}
return fields;
}
}