@SuppressWarnings("unchecked")
private Object toValue(Object bean, Field field, XMLNode node) throws Exception {
Class<?> type = field.getType();
field.setAccessible(true);
Object current = field.get(bean);
if (current != null) type = current.getClass();
if (Collection.class.isAssignableFrom(type)) {
Type eleParamType = Object.class;
ParameterizedType paramType = (ParameterizedType) field.getGenericType();
if (paramType.getActualTypeArguments().length > 0) {
eleParamType = paramType.getActualTypeArguments()[0];
}
Object[] array = (Object[]) toArrayValues((Class<?>) eleParamType, node);
Collection collection = null;
if (current != null && current instanceof Collection) {
collection = (Collection) current;
} else if (type.isInterface()) {
collection = new ArrayList<Object>();
} else {
collection = (Collection) type.newInstance();
}
Collections.addAll(collection, array);
return collection;
}
if (type.isArray()) return toArrayValues(type, node);
return toValue(type, node);
}
/**
* Determines the component type. Lists is the first type, Map is the second type, etc.
*
* @param type The parametrized type.
* @param path The path to the type, used in exception message.
* @return The component type.
*/
public static Type componentType(Type type, String path) {
if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
Class<?> rawType = (Class<?>) parameterizedType.getRawType();
if (Map.class.isAssignableFrom(rawType)) {
return parameterizedType.getActualTypeArguments()[1];
} else if (Collection.class.isAssignableFrom(rawType)) {
return parameterizedType.getActualTypeArguments()[0];
} else {
throw new CollectionExpressionException("Unknown collection type [" + type + "]");
}
} else if (type instanceof GenericArrayType) {
return ((GenericArrayType) type).getGenericComponentType();
}
Class<?> rawType = (Class<?>) type;
if (Map.class == type || Collection.class == type) {
throw new CollectionExpressionException(
"The method or member ["
+ path
+ "] returns a simple "
+ "Map or Collection. Unable to determine the type of the Map or Collection. "
+ "Please make this method generic so that the correct type can be determined.");
} else if (rawType.isArray()) {
return rawType.getComponentType();
}
return rawType;
}
private void writeObject(
ContentValues values, Object object, String columnName, ParameterizedType fieldType)
throws IOException {
if (object == null) return;
final Type rawType = fieldType.getRawType();
if (!(rawType instanceof Class)) throw new UnsupportedOperationException();
final Class rawCls = (Class) rawType;
if (List.class.isAssignableFrom(rawCls)) {
values.put(
columnName,
LoganSquare.serialize((List) object, (Class) fieldType.getActualTypeArguments()[0]));
} else if (Map.class.isAssignableFrom(rawCls)) {
//noinspection unchecked
values.put(
columnName,
LoganSquare.serialize((Map) object, (Class) fieldType.getActualTypeArguments()[1]));
} else if (rawCls.isArray()) {
final Class componentType = rawCls.getComponentType();
values.put(
columnName,
LoganSquare.serialize((List) Arrays.asList((Object[]) object), componentType));
} else {
values.put(columnName, LoganSquare.serialize(object));
}
}
static Class<?> getTypeClass(Type type) {
if (type instanceof Class<?>) {
return (Class<?>) type;
}
if (type instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) type;
Class<?> c = (Class<?>) pt.getRawType();
if (ValuedEnum.class.isAssignableFrom(c)) {
Type[] types = pt.getActualTypeArguments();
if (types == null || types.length != 1) {
c = int.class;
} else {
c = getTypeClass(pt.getActualTypeArguments()[0]);
}
}
return c;
}
if (type instanceof GenericArrayType) {
if (Object.class.isAssignableFrom(
getTypeClass(((GenericArrayType) type).getGenericComponentType()))) {
return Object[].class;
}
}
throw new UnsupportedOperationException("Unknown type type : " + type.getClass().getName());
}
@Override
public <T> ParamConverter<T> getConverter(
final Class<T> rawType, final Type genericType, final Annotation[] annotations) {
if (rawType != List.class) return null;
if (genericType instanceof ParameterizedType) {
final ParameterizedType parameterizedType = (ParameterizedType) genericType;
if (parameterizedType.getActualTypeArguments().length != 1) return null;
if (parameterizedType.getActualTypeArguments()[0] != String.class) return null;
} else {
return null;
}
return (ParamConverter<T>)
new ParamConverter<List<String>>() {
@Override
public List<String> fromString(final String value) {
return Arrays.asList(value.split(","));
}
@Override
public String toString(final List<String> value) throws IllegalArgumentException {
return value.toString();
}
};
}
/**
* Get the class instance of a specific generic index in the baseclass passed to this method.
*
* @param baseClass is the class to read from
* @param genericIdx is the index of the generic parameter's class we want
* @return the generic class
*/
public static Class<?> getGenericClassAtIndexForEvent(Class<?> baseClass, int genericIdx) {
if (baseClass == null) {
throw new IllegalArgumentException("Base class cannot be null");
}
if (genericIdx < 0) {
throw new IllegalArgumentException("The generic index cannot be smaller than zero");
}
// get to the level at which this class is defined as an EventHandler
ParameterizedType eventHandlerType = getEventHandlerClass(baseClass);
if (eventHandlerType == null) {
throw new IllegalStateException(
"Could not find event handler class for this base class, not an EventHandler.");
}
// make sure we can actually retrieve the index we need
if (eventHandlerType.getActualTypeArguments().length <= genericIdx) {
throw new IllegalArgumentException("Index cannot be retrieved, type does not have enough");
}
// get the correct generic instance, drill up a level when it's a parameterized type (generic in
// generic)
Type genInstance = eventHandlerType.getActualTypeArguments()[genericIdx];
if (genInstance instanceof ParameterizedType) {
genInstance = ((ParameterizedType) genInstance).getRawType();
}
// return its class
return (Class<?>) genInstance;
}
/** Returns true if {@code a} and {@code b} are equal. */
public static boolean equals(Type a, Type b) {
if (a == b) {
// also handles (a == null && b == null)
return true;
} else if (a instanceof Class) {
// Class already specifies equals().
return a.equals(b);
} else if (a instanceof ParameterizedType) {
if (!(b instanceof ParameterizedType)) {
return false;
}
// TODO: save a .clone() call
ParameterizedType pa = (ParameterizedType) a;
ParameterizedType pb = (ParameterizedType) b;
return equal(pa.getOwnerType(), pb.getOwnerType())
&& pa.getRawType().equals(pb.getRawType())
&& Arrays.equals(pa.getActualTypeArguments(), pb.getActualTypeArguments());
} else if (a instanceof GenericArrayType) {
if (!(b instanceof GenericArrayType)) {
return false;
}
GenericArrayType ga = (GenericArrayType) a;
GenericArrayType gb = (GenericArrayType) b;
return equals(ga.getGenericComponentType(), gb.getGenericComponentType());
} else if (a instanceof WildcardType) {
if (!(b instanceof WildcardType)) {
return false;
}
WildcardType wa = (WildcardType) a;
WildcardType wb = (WildcardType) b;
return Arrays.equals(wa.getUpperBounds(), wb.getUpperBounds())
&& Arrays.equals(wa.getLowerBounds(), wb.getLowerBounds());
} else if (a instanceof TypeVariable) {
if (!(b instanceof TypeVariable)) {
return false;
}
TypeVariable<?> va = (TypeVariable<?>) a;
TypeVariable<?> vb = (TypeVariable<?>) b;
return va.getGenericDeclaration() == vb.getGenericDeclaration()
&& va.getName().equals(vb.getName());
} else {
// This isn't a type we support. Could be a generic array type,
// wildcard type, etc.
return false;
}
}
@Test
public void testURIDeclarations() throws NoSuchMethodException, SecurityException {
Assert.assertNotNull(A.class.getMethod("addA", Object.class));
Assert.assertNotNull(B.class.getMethod("addA", Object.class));
Method uriMethod = B.class.getMethod("getA");
Assert.assertTrue(uriMethod.getGenericReturnType() instanceof ParameterizedType);
ParameterizedType returnType = (ParameterizedType) uriMethod.getGenericReturnType();
Assert.assertEquals(returnType.getActualTypeArguments().length, 1);
Assert.assertTrue(returnType.getActualTypeArguments()[0] instanceof WildcardType);
Assert.assertEquals(
((WildcardType) returnType.getActualTypeArguments()[0]).getUpperBounds()[0], URI.class);
}
/*
* Enabled force condition propagation
* Lifted jumps to return sites
*/
private static boolean typeEquals(ParameterizedType arrtype, ParameterizedType arrtype2, Map<String, Type> map) {
if (!arrtype.getRawType().equals(arrtype2.getRawType())) return false;
arrtype = arrtype.getActualTypeArguments();
arrtype2 = arrtype2.getActualTypeArguments();
int n2 = 0;
while (n2 < arrtype.length) {
if (!TypeToken.matches(arrtype[n2], arrtype2[n2], map)) {
return false;
}
++n2;
}
return true;
}
/**
* Analyze a complex parametrized type attribute (which can be a list or map for example)
*
* @param parameterizedType
* @param rawType
*/
protected void analyzeParametrizedType(ParameterizedType parameterizedType, Type rawType) {
if (List.class.equals(rawType)) {
this.isList = true;
if (parameterizedType.getActualTypeArguments()[0] instanceof Class
&& ((Class) parameterizedType.getActualTypeArguments()[0])
.isAnnotationPresent(DTO.class)) {
isListOfDto = true;
dtoImpl = convertType(parameterizedType.getActualTypeArguments()[0]) + "Impl";
}
} else if (Map.class.equals(rawType)) {
isMap = true;
}
}
private Object generate(Class<?> type, boolean alternative) {
for (Generator<?> generator : generators) {
ParameterizedType generic =
(ParameterizedType) generator.getClass().getGenericInterfaces()[0];
Class<?> restrained =
generic.getActualTypeArguments()[0] instanceof ParameterizedType
? (Class<?>) ((ParameterizedType) generic.getActualTypeArguments()[0]).getRawType()
: (Class<?>) generic.getActualTypeArguments()[0];
if (type.isAssignableFrom(restrained)) {
type = generator.generate();
}
}
return type == String.class ? alternative ? OTHER_STRING : DEFAULT_STRING : mock(type);
}
@SuppressWarnings("unchecked")
private void apply(Object mock) {
for (Refinement refinement : refinements) {
ParameterizedType generic =
(ParameterizedType) refinement.getClass().getGenericInterfaces()[0];
Class<?> restrained =
generic.getActualTypeArguments()[0] instanceof ParameterizedType
? (Class<?>) ((ParameterizedType) generic.getActualTypeArguments()[0]).getRawType()
: (Class<?>) generic.getActualTypeArguments()[0];
if (restrained.isInstance(mock)) {
refinement.apply(mock);
}
}
}
private Object replace(Class<?> type, ApplicableGenerator generator, boolean alternative) {
for (Creator<?> creator : creators) {
ParameterizedType generic =
(ParameterizedType) creator.getClass().getGenericInterfaces()[0];
Class<?> restrained =
generic.getActualTypeArguments()[0] instanceof ParameterizedType
? (Class<?>) ((ParameterizedType) generic.getActualTypeArguments()[0]).getRawType()
: (Class<?>) generic.getActualTypeArguments()[0];
if (type.isAssignableFrom(restrained)) {
return creator.create();
}
}
return generator.generate(type, alternative);
}
/**
* Checks if two parameterized types are exactly equal, under the variable replacement described
* in the typeVarMap.
*/
private static boolean typeEquals(
ParameterizedType from, ParameterizedType to, Map<String, Type> typeVarMap) {
if (from.getRawType().equals(to.getRawType())) {
Type[] fromArgs = from.getActualTypeArguments();
Type[] toArgs = to.getActualTypeArguments();
for (int i = 0; i < fromArgs.length; i++) {
if (!matches(fromArgs[i], toArgs[i], typeVarMap)) {
return false;
}
}
return true;
}
return false;
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Preference annotation = method.getAnnotation(Preference.class);
String key = annotation.value();
String defaultString = annotation.defaultString();
boolean defaultBoolean = annotation.defaultBoolean();
int defaultInt = annotation.defaultInt();
long defaultLong = annotation.defaultLong();
float defaultFloat = annotation.defaultFloat();
if (method.getReturnType().equals(StringEntry.class)) {
return new StringEntry(preferences, key, defaultString);
} else if (method.getReturnType().equals(FloatEntry.class)) {
return new FloatEntry(preferences, key, defaultFloat);
} else if (method.getReturnType().equals(LongEntry.class)) {
return new LongEntry(preferences, key, defaultLong);
} else if (method.getReturnType().equals(IntEntry.class)) {
return new IntEntry(preferences, key, defaultInt);
} else if (method.getReturnType().equals(BooleanEntry.class)) {
return new BooleanEntry(preferences, key, defaultBoolean);
} else if (method.getReturnType().equals(ObjectEntry.class)) {
if (method.getGenericReturnType() instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) method.getGenericReturnType();
Class<?> type = (Class) parameterizedType.getActualTypeArguments()[0];
return new ObjectEntry<>(preferences, key, gson, type);
}
throw new RuntimeException("ObjectEntries must have a parameter");
} else {
return null;
}
}
/**
* Gets the specific Pojo class.
*
* @return the specific Pojo class
*/
protected Class getDomainClass() {
if (domainClass == null) {
ParameterizedType thisType = (ParameterizedType) getClass().getGenericSuperclass();
domainClass = (Class) thisType.getActualTypeArguments()[0];
}
return domainClass;
}
/**
* Returns the component types of the given type. Returns <code>null</code> if given type does not
* have a single component type. For example the following types all have the component-type
* MyClass:
*
* <ul>
* <li>MyClass[]
* <li>List<MyClass>
* <li>Foo<? extends MyClass>
* <li>Bar<? super MyClass>
* <li><T extends MyClass> T[]
* </ul>
*/
public static Class[] getComponentTypes(Type type, Class implClass) {
if (type instanceof Class) {
Class clazz = (Class) type;
if (clazz.isArray()) {
return new Class[] {clazz.getComponentType()};
}
} else if (type instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) type;
Type[] generics = pt.getActualTypeArguments();
if (generics.length == 0) {
return null;
}
Class[] types = new Class[generics.length];
for (int i = 0; i < generics.length; i++) {
types[i] = getRawType(generics[i], implClass);
}
return types;
} else if (type instanceof GenericArrayType) {
GenericArrayType gat = (GenericArrayType) type;
Class rawType = getRawType(gat.getGenericComponentType(), implClass);
if (rawType == null) {
return null;
}
return new Class[] {rawType};
}
return null;
}
/**
* Creates the type, it's private so you must use fromType.
*
* @param type
*/
private JavaType(Type type) {
// the type
this.type = type;
// parameterized?
parameterizedType =
ParameterizedType.class.isInstance(type) ? ParameterizedType.class.cast(type) : null;
// generic info
genericInfo = parameterizedType != null;
// get class
if (Class.class.isInstance(type)) {
clazz = Class.class.cast(type);
} else if (parameterizedType != null) {
clazz = Class.class.cast(parameterizedType.getRawType());
} else {
clazz = null;
}
// component type
if (clazz != null && clazz.getComponentType() != null) {
componentType = clazz.getComponentType();
}
// instantiable
instantiable = clazz != null;
// typeParameters
typeParameters = parameterizedType != null ? parameterizedType.getActualTypeArguments() : null;
// genericInfo
genericInfo = typeParameters != null;
}
// 反射获取T的simpleName
public BaseService() {
Type type = this.getClass().getGenericSuperclass();
ParameterizedType pt = (ParameterizedType) type;
Type[] types = pt.getActualTypeArguments();
clazz = (Class<T>) types[0];
Tname = clazz.getSimpleName();
}
/**
* Infer value type in one collection type
*
* @param genericType
* @return
*/
public static Type inferElementTypeIn(Type collectionType) {
if (collectionType instanceof Class) {
return Object.class;
} else if (collectionType instanceof ParameterizedType) {
ParameterizedType parameterizedCollectionType = (ParameterizedType) collectionType;
Type collectionValueType = parameterizedCollectionType.getActualTypeArguments()[0];
if (collectionValueType instanceof Class) {
return (Class) collectionValueType;
} else if (collectionValueType instanceof ParameterizedType) {
ParameterizedType type = (ParameterizedType) collectionValueType;
return type.getRawType();
} else if (collectionValueType instanceof WildcardType) {
throw new UnusableTypeException(
"we can't infer element type in widlcard type " + collectionType.toString());
} else if (collectionValueType instanceof TypeVariable) {
throw new UnusableTypeException(
"we can't infer element type in type variable " + collectionType.toString());
}
} else if (collectionType instanceof WildcardType) {
throw new UnusableTypeException(
"we can't infer element type in widlcard type " + collectionType.toString());
} else if (collectionType instanceof TypeVariable) {
throw new UnusableTypeException(
"we can't infer element type in type variable " + collectionType.toString());
}
throw new UnusableTypeException("we can't infer element type in " + collectionType.toString());
}
/**
* 返回一个type的泛型数组, 如果没有, 则直接返回null
*
* @param type
* @return
*/
public static Type[] getGenericsTypes(Type type) {
if (type instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) type;
return pt.getActualTypeArguments();
}
return null;
}
private String nameFor(ParameterizedType type) {
Class<?> raw = (Class<?>) type.getRawType();
if (Collection.class.isAssignableFrom(raw)) {
return nameFor(type.getActualTypeArguments()[0]) + "List";
}
return nameFor(raw);
}
public static Class getFieldGenericType(Field field) {
if (ParameterizedType.class.isAssignableFrom(field.getGenericType().getClass())) {
ParameterizedType genericType = (ParameterizedType) field.getGenericType();
return (Class) genericType.getActualTypeArguments()[0];
}
return Void.class;
}
@SuppressWarnings("unchecked")
static Class<? extends Event<?>> getEventClass(Class<?> handlerClass) {
for (Class<?> i : handlerClass.getInterfaces()) {
if (EventHandler.class.equals(i)) {
for (Type t : handlerClass.getGenericInterfaces()) {
if (t instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) t;
if (EventHandler.class.equals(pt.getRawType())) {
return (Class<? extends Event<?>>) pt.getActualTypeArguments()[0];
}
}
}
} else if (EventHandler.class.isAssignableFrom(i)) {
return getEventClass((Class<? extends EventHandler<?>>) i);
}
}
if (EventHandler.class.isAssignableFrom(handlerClass.getSuperclass())) {
return getEventClass((Class<?>) handlerClass.getSuperclass());
}
return null;
}
private static void checkFacadeInjectionPoint(InjectionPoint injectionPoint, Class<?> type) {
if (injectionPoint.getAnnotated().getBaseType().equals(type)) {
if (injectionPoint.getType() instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) injectionPoint.getType();
if (parameterizedType.getActualTypeArguments()[0] instanceof TypeVariable<?>) {
throw new DefinitionException(INJECTION_POINT_WITH_TYPE_VARIABLE, injectionPoint);
}
if (parameterizedType.getActualTypeArguments()[0] instanceof WildcardType) {
throw new DefinitionException(INJECTION_POINT_HAS_WILDCARD, type, injectionPoint);
}
} else {
throw new DefinitionException(
INJECTION_POINT_MUST_HAVE_TYPE_PARAMETER, type, injectionPoint);
}
}
}
public void testResolveToGenericArrayType() {
GenericArrayType arrayType =
(GenericArrayType) new Holder<List<int[][]>[]>() {}.getContentType();
ParameterizedType listType = (ParameterizedType) arrayType.getGenericComponentType();
assertEquals(List.class, listType.getRawType());
assertEquals(Types.newArrayType(int[].class), listType.getActualTypeArguments()[0]);
}
@Override
protected void found(final Class<ActEventListener> target, final App app) {
final EventBus bus = app.eventBus();
ParameterizedType ptype = null;
Type superType = target.getGenericSuperclass();
while (ptype == null) {
if (superType instanceof ParameterizedType) {
ptype = (ParameterizedType) superType;
} else {
if (Object.class == superType) {
logger.warn("Event listener registration failed: cannot find generic information for %s", target.getName());
return;
}
superType = ((Class) superType).getGenericSuperclass();
}
}
Type[] ca = ptype.getActualTypeArguments();
for (Type t : ca) {
if (t instanceof Class) {
final Class tc = (Class) t;
if (ActEvent.class.isAssignableFrom(tc)) {
app.eventBus().bind(AppEventId.DEPENDENCY_INJECTOR_LOADED, new AppEventListenerBase() {
@Override
public void on(EventObject event) throws Exception {
ActEventListener listener = (ActEventListener) app.newInstance(target);
bus.bind(tc, listener);
}
});
return;
}
}
}
}
@Nullable
private static TypeWrapper wrap(Type type) {
if (type == null) {
return null;
} else if (type instanceof Class) {
return new ClassTypeWrapper((Class<?>) type);
} else if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
return new ParameterizedTypeWrapper(
toWrappers(parameterizedType.getActualTypeArguments()),
(ClassTypeWrapper) wrap(parameterizedType.getRawType()),
wrap(parameterizedType.getOwnerType()));
} else if (type instanceof WildcardType) {
WildcardType wildcardType = (WildcardType) type;
return new WildcardTypeWrapper(
toWrappers(wildcardType.getUpperBounds()),
toWrappers(wildcardType.getLowerBounds()),
type.hashCode());
} else if (type instanceof TypeVariable) {
TypeVariable<?> typeVariable = (TypeVariable<?>) type;
return new TypeVariableTypeWrapper(
typeVariable.getName(), toWrappers(typeVariable.getBounds()), type.hashCode());
} else if (type instanceof GenericArrayType) {
GenericArrayType genericArrayType = (GenericArrayType) type;
return new GenericArrayTypeWrapper(
wrap(genericArrayType.getGenericComponentType()), type.hashCode());
} else {
throw new IllegalArgumentException("cannot wrap type of type " + type.getClass());
}
}
@Override
public void map(
ServiceReference<ModelAdapterBuilder> serviceReference, Emitter<String> emitter) {
Registry registry = RegistryUtil.getRegistry();
ModelAdapterBuilder modelAdapterBuilder = registry.getService(serviceReference);
Type genericInterface =
ReflectionUtil.getGenericInterface(
modelAdapterBuilder, ModelAdapterBuilder.class);
if ((genericInterface == null) || !(genericInterface instanceof ParameterizedType)) {
return;
}
ParameterizedType parameterizedType = (ParameterizedType) genericInterface;
Type[] typeArguments = parameterizedType.getActualTypeArguments();
if (ArrayUtil.isEmpty(typeArguments) || (typeArguments.length != 2)) {
return;
}
try {
Class adapteeModelClass = (Class) typeArguments[0];
Class adaptedModelClass = (Class) typeArguments[1];
emitter.emit(getKey(adapteeModelClass, adaptedModelClass));
} catch (ClassCastException cce) {
return;
}
}
private static Class getClass(ParameterizedType paramParameterizedType) {
paramParameterizedType = paramParameterizedType.getActualTypeArguments();
if (paramParameterizedType.length > 0) {
return getClass(paramParameterizedType[0]);
}
return null;
}
