private static final TypeVariable<?> resolve(
final TypeVariable<?> typeVar, final TypeVariable<?>[] declaredVars) {
for (TypeVariable<?> declaredVar : declaredVars) {
if (typeVar.getName().equals(declaredVar.getName())) {
return declaredVar;
}
}
return null;
}
private ClassNode configureTypeVariableReference(TypeVariable tv) {
ClassNode cn = ClassHelper.makeWithoutCaching(tv.getName());
cn.setGenericsPlaceHolder(true);
ClassNode cn2 = ClassHelper.makeWithoutCaching(tv.getName());
cn2.setGenericsPlaceHolder(true);
GenericsType[] gts = new GenericsType[] {new GenericsType(cn2)};
cn.setGenericsTypes(gts);
cn.setRedirect(ClassHelper.OBJECT_TYPE);
return cn;
}
/** 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;
}
}
/** Private recursive helper function to actually do the type-safe checking of assignability. */
private static boolean isAssignableFrom(
Type from, ParameterizedType to, Map<String, Type> typeVarMap) {
if (from == null) {
return false;
}
if (to.equals(from)) {
return true;
}
// First figure out the class and any type information.
Class<?> clazz = getRawType(from);
ParameterizedType ptype = null;
if (from instanceof ParameterizedType) {
ptype = (ParameterizedType) from;
}
// Load up parameterized variable info if it was parameterized.
if (ptype != null) {
Type[] tArgs = ptype.getActualTypeArguments();
TypeVariable<?>[] tParams = clazz.getTypeParameters();
for (int i = 0; i < tArgs.length; i++) {
Type arg = tArgs[i];
TypeVariable<?> var = tParams[i];
while (arg instanceof TypeVariable) {
TypeVariable<?> v = (TypeVariable<?>) arg;
arg = typeVarMap.get(v.getName());
}
typeVarMap.put(var.getName(), arg);
}
// check if they are equivalent under our current mapping.
if (typeEquals(ptype, to, typeVarMap)) {
return true;
}
}
for (Type itype : clazz.getGenericInterfaces()) {
if (isAssignableFrom(itype, to, new HashMap<String, Type>(typeVarMap))) {
return true;
}
}
// Interfaces didn't work, try the superclass.
Type sType = clazz.getGenericSuperclass();
if (isAssignableFrom(sType, to, new HashMap<String, Type>(typeVarMap))) {
return true;
}
return false;
}
@Override
public boolean equals(Object obj) {
if (NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
// equal only to our TypeVariable implementation with identical bounds
if (obj != null
&& Proxy.isProxyClass(obj.getClass())
&& Proxy.getInvocationHandler(obj) instanceof TypeVariableInvocationHandler) {
TypeVariableInvocationHandler typeVariableInvocationHandler =
(TypeVariableInvocationHandler) Proxy.getInvocationHandler(obj);
TypeVariableImpl<?> that = typeVariableInvocationHandler.typeVariableImpl;
return name.equals(that.getName())
&& genericDeclaration.equals(that.getGenericDeclaration())
&& bounds.equals(that.bounds);
}
return false;
} else {
// equal to any TypeVariable implementation regardless of bounds
if (obj instanceof TypeVariable) {
TypeVariable<?> that = (TypeVariable<?>) obj;
return name.equals(that.getName())
&& genericDeclaration.equals(that.getGenericDeclaration());
}
return false;
}
}
@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());
}
}
private Class<?> extractRawInjectionClass(
Class<?> injectedClass, TypeVariable<?> injectionTypeVariable) {
int index = 0;
for (TypeVariable<?> typeVariable :
injectionTypeVariable.getGenericDeclaration().getTypeParameters()) {
if (injectionTypeVariable.getName().equals(typeVariable.getName())) {
return (Class<?>) getActualType(injectedClass, index);
}
index++;
}
throw new IllegalArgumentException(
"Could not extract the rawInjectionClass of "
+ injectedClass
+ " and "
+ injectionTypeVariable);
}
public boolean equals(Object o) {
if (!(o instanceof TypeVariable)) return false;
TypeVariable tv = (TypeVariable) o;
return equal(name, tv.getName())
&& equal(gd, tv.getGenericDeclaration())
&& Arrays.equals(bounds, tv.getBounds());
}
/**
* Lookup a type variable in the scope, using its name. Returns null if no type variable with this
* name is declared in this scope or any of its surrounding scopes.
*
* @param name - the name of the type variable being looked up
* @return the requested type variable, if found
*/
public TypeVariable<?> lookup(String name) {
TypeVariable<?>[] tas = getRecvr().getTypeParameters();
for (TypeVariable<?> tv : tas) {
if (tv.getName().equals(name)) {
return tv;
}
}
return getEnclosingScope().lookup(name);
}
private void visitType(java.lang.reflect.Type type, StringBuilder builder) {
if (type instanceof Class) {
Class<?> cl = (Class<?>) type;
if (cl.isPrimitive()) {
builder.append(Type.getType(cl).getDescriptor());
} else {
if (cl.isArray()) {
builder.append(cl.getName().replace('.', '/'));
} else {
builder.append('L');
builder.append(cl.getName().replace('.', '/'));
builder.append(';');
}
}
} else if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
visitNested(parameterizedType.getRawType(), builder);
builder.append('<');
for (java.lang.reflect.Type param : parameterizedType.getActualTypeArguments()) {
visitType(param, builder);
}
builder.append(">;");
} else if (type instanceof WildcardType) {
WildcardType wildcardType = (WildcardType) type;
if (wildcardType.getUpperBounds().length == 1
&& wildcardType.getUpperBounds()[0].equals(Object.class)) {
if (wildcardType.getLowerBounds().length == 0) {
builder.append('*');
return;
}
} else {
for (java.lang.reflect.Type upperType : wildcardType.getUpperBounds()) {
builder.append('+');
visitType(upperType, builder);
}
}
for (java.lang.reflect.Type lowerType : wildcardType.getLowerBounds()) {
builder.append('-');
visitType(lowerType, builder);
}
} else if (type instanceof TypeVariable) {
TypeVariable<?> typeVar = (TypeVariable) type;
builder.append('T');
builder.append(typeVar.getName());
builder.append(';');
} else if (type instanceof GenericArrayType) {
GenericArrayType arrayType = (GenericArrayType) type;
builder.append('[');
visitType(arrayType.getGenericComponentType(), builder);
} else {
throw new IllegalArgumentException(
String.format("Cannot generate signature for %s.", type));
}
}
/* */ public JavaType getType(TypeBindings bindings) /* */ {
/* 66 */ TypeVariable[] localTypeParams = this._constructor.getTypeParameters();
/* */
/* 68 */ if ((localTypeParams != null) && (localTypeParams.length > 0)) {
/* 69 */ bindings = bindings.childInstance();
/* 70 */ for (TypeVariable var : localTypeParams) {
/* 71 */ String name = var.getName();
/* */
/* 73 */ bindings._addPlaceholder(name);
/* */
/* 75 */ Type lowerBound = var.getBounds()[0];
/* 76 */ JavaType type =
lowerBound == null
? TypeFactory.fastSimpleType(Object.class)
: TypeFactory.type(lowerBound, bindings);
/* */
/* 78 */ bindings.addBinding(var.getName(), type);
/* */ }
/* */ }
/* 81 */ return TypeFactory.type(getGenericType(), bindings);
/* */ }
public static void main(String... args) {
try {
Class<?> c = Class.forName(args[0]);
out.format("Class:%n %s%n%n", c.getCanonicalName());
out.format("Modifiers:%n %s%n%n", Modifier.toString(c.getModifiers()));
out.format("Type Parameters:%n");
TypeVariable<?>[] tv = c.getTypeParameters();
if (tv.length != 0) {
out.format(" ");
for (TypeVariable<?> t : tv) out.format("%s ", t.getName());
out.format("%n%n");
} else {
out.format(" -- No Type Parameters --%n%n");
}
out.format("Implemented Interfaces:%n");
Type[] intfs = c.getGenericInterfaces();
if (intfs.length != 0) {
for (Type intf : intfs) out.format(" %s%n", intf.toString());
out.format("%n");
} else {
out.format(" -- No Implemented Interfaces --%n%n");
}
out.format("Inheritance Path:%n");
List<Class<?>> l = new ArrayList<Class<?>>();
printAncestor(c, l);
if (l.size() != 0) {
for (Class<?> cl : l) out.format(" %s%n", cl.getCanonicalName());
out.format("%n");
} else {
out.format(" -- No Super Classes --%n%n");
}
out.format("Annotations:%n");
Annotation[] ann = c.getAnnotations();
if (ann.length != 0) {
for (Annotation a : ann) out.format(" %s%n", a.toString());
out.format("%n");
} else {
out.format(" -- No Annotations --%n%n");
}
// production code should handle this exception more gracefully
} catch (ClassNotFoundException x) {
x.printStackTrace();
}
}
/**
* Returns the actual type for a given generic type.
*
* @param initialType The initial type, which may be generic.
* @param genericType The generic type information if any.
* @return The actual type.
*/
private Class<?> getJavaActualType(Class<?> initialType, Type genericType) {
Class<?> result = initialType;
try {
if (genericType instanceof TypeVariable<?>) {
TypeVariable<?> genericTypeVariable = (TypeVariable<?>) genericType;
String genericTypeName = genericTypeVariable.getName();
result = getJavaActualType(getResourceClass(), genericTypeName);
}
} catch (Throwable t) {
t.printStackTrace();
}
return result;
}
/**
* Resolves {@code var} using the encapsulated type mapping. If it maps to yet another
* non-reified type or has bounds, {@code forDependants} is used to do further resolution, which
* doesn't try to resolve any type variable on generic declarations that are already being
* resolved.
*
* <p>Should only be called and overridden by {@link #resolve(TypeVariable)}.
*/
Type resolveInternal(TypeVariable<?> var, TypeTable forDependants) {
Type type = map.get(var);
if (type == null) {
Type[] bounds = var.getBounds();
if (bounds.length == 0) {
return var;
}
return Types.newTypeVariable(
var.getGenericDeclaration(),
var.getName(),
new TypeResolver(forDependants).resolveTypes(bounds));
}
// in case the type is yet another type variable.
return new TypeResolver(forDependants).resolveType(type);
}
private void buildGenericTypeVariables(Class<?>[] genericTypes) {
if (samType.getTypeParameters().length != genericTypes.length)
throw new LambdaException(
"SAM class [%s] requires [%d] generic type variables, but only [%d] where provided",
samType.getName(), samType.getTypeParameters().length, genericTypes.length);
for (int i = 0; i < samType.getTypeParameters().length; i++) {
TypeVariable typeVariable = samType.getTypeParameters()[i];
for (Type bound : typeVariable.getBounds())
if (bound instanceof Class<?> && !((Class) bound).isAssignableFrom(genericTypes[i]))
throw new LambdaException(
"SAM class [%s] generic type variable [%d, %s] is not compatible with generic parameter [%s]",
samType.getName(), i, samType.getTypeParameters()[i].toString(), genericTypes[i]);
materializedTypeVariableses.add(
new MaterializedTypeVariable(typeVariable.getName(), genericTypes[i]));
}
}
/**
* Find the index of the TypeVariable in the classes parameters. The offset can be used on a
* subclass to find the actual type.
*
* @param typeVariable - the type variable in question.
* @return the index of the type variable in its declaring class/method/constructor's type
* parameters.
*/
private static int getTypeVariableIndex(final TypeVariable typeVariable) {
// the label from the class (the T in List<T>, the K or V in Map<K,V>, etc)
final String typeVarName = typeVariable.getName();
final TypeVariable[] typeParameters = typeVariable.getGenericDeclaration().getTypeParameters();
for (int typeArgumentIndex = 0;
typeArgumentIndex < typeParameters.length;
typeArgumentIndex++) {
// The .equals for TypeVariable may not be compatible, a name check should be sufficient.
if (typeParameters[typeArgumentIndex].getName().equals(typeVarName)) return typeArgumentIndex;
}
// The only way this could happen is if the TypeVariable is hand built incorrectly, or it's
// corrupted.
throw new RuntimeException(
String.format(
"%s does not have a TypeVariable matching %s",
typeVariable.getGenericDeclaration(), typeVariable));
}
@TestTargetNew(
level = TestLevel.SUFFICIENT,
notes = "Missing tests for TypeNotPresentException, MalformedParameterizedTypeException",
method = "getGenericComponentType",
args = {})
public void testGetGenericComponentType() throws Exception {
@SuppressWarnings("unchecked")
Class<? extends A> clazz = GenericArrayTypeTest.A.class;
Field field = clazz.getDeclaredField("array");
Type genericType = field.getGenericType();
assertInstanceOf(GenericArrayType.class, genericType);
Type componentType = ((GenericArrayType) genericType).getGenericComponentType();
assertEquals(getTypeParameter(clazz), componentType);
assertInstanceOf(TypeVariable.class, componentType);
TypeVariable<?> componentTypeVariable = (TypeVariable<?>) componentType;
assertEquals("T", componentTypeVariable.getName());
assertEquals(clazz, componentTypeVariable.getGenericDeclaration());
}
public boolean equals(Object var1) {
if (Types.NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
if (!(var1 instanceof Types.TypeVariableImpl)) {
return false;
} else {
Types.TypeVariableImpl var3 = (Types.TypeVariableImpl) var1;
return this.name.equals(var3.getName())
&& this.genericDeclaration.equals(var3.getGenericDeclaration())
&& this.bounds.equals(var3.bounds);
}
} else if (!(var1 instanceof TypeVariable)) {
return false;
} else {
TypeVariable var2 = (TypeVariable) var1;
return this.name.equals(var2.getName())
&& this.genericDeclaration.equals(var2.getGenericDeclaration());
}
}
protected static JavaType _resolveVariableViaSubTypes(
HierarchicType leafType, String variableName, TypeBindings bindings) {
// can't resolve raw types; possible to have as-of-yet-unbound types too:
if (leafType != null && leafType.isGeneric()) {
TypeVariable<?>[] typeVariables = leafType.getRawClass().getTypeParameters();
for (int i = 0, len = typeVariables.length; i < len; ++i) {
TypeVariable<?> tv = typeVariables[i];
if (variableName.equals(tv.getName())) {
// further resolution needed?
Type type = leafType.asGeneric().getActualTypeArguments()[i];
if (type instanceof TypeVariable<?>) {
return _resolveVariableViaSubTypes(
leafType.getSubType(), ((TypeVariable<?>) type).getName(), bindings);
}
// no we're good for the variable (but it may have parameterization of its own)
return instance._fromType(type, bindings);
}
}
}
return instance._unknownType();
}
protected JavaType _fromVariable(TypeVariable<?> type, TypeBindings context) {
/* 26-Sep-2009, tatus: It should be possible to try "partial"
* resolution; meaning that it is ok not to find bindings.
* For now this is indicated by passing null context.
*/
if (context == null) {
return _unknownType();
}
// Ok: here's where context might come in handy!
String name = type.getName();
JavaType actualType = context.findType(name);
if (actualType != null) {
return actualType;
}
/* 29-Jan-2010, tatu: We used to throw exception here, if type was
* bound: but the problem is that this can occur for generic "base"
* method, overridden by sub-class. If so, we will want to ignore
* current type (for method) since it will be masked.
*/
Type[] bounds = type.getBounds();
// With type variables we must use bound information.
// Theoretically this gets tricky, as there may be multiple
// bounds ("... extends A & B"); and optimally we might
// want to choose the best match. Also, bounds are optional;
// but here we are lucky in that implicit "Object" is
// added as bounds if so.
// Either way let's just use the first bound, for now, and
// worry about better match later on if there is need.
/* 29-Jan-2010, tatu: One more problem are recursive types
* (T extends Comparable<T>). Need to add "placeholder"
* for resolution to catch those.
*/
context._addPlaceholder(name);
return _fromType(bounds[0], context);
}
private static boolean isAssignableFrom(Type object, ParameterizedType parameterizedType, Map<String, Type> map) {
int n2;
if (object == null) {
return false;
}
if (parameterizedType.equals(object)) {
return true;
}
Class class_ = $Gson$Types.getRawType((Type)object);
ParameterizedType parameterizedType2 = null;
if (object instanceof ParameterizedType) {
parameterizedType2 = (ParameterizedType)object;
}
if (parameterizedType2 != null) {
Type[] arrtype = parameterizedType2.getActualTypeArguments();
TypeVariable<Class<?>>[] arrtypeVariable = class_.getTypeParameters();
for (n2 = 0; n2 < arrtype.length; ++n2) {
object = arrtype[n2];
TypeVariable typeVariable = arrtypeVariable[n2];
while (object instanceof TypeVariable) {
object = map.get(((TypeVariable)object).getName());
}
map.put(typeVariable.getName(), (Type)object);
}
if (TypeToken.typeEquals(parameterizedType2, parameterizedType, map)) {
return true;
}
}
object = class_.getGenericInterfaces();
int n3 = object.length;
for (n2 = 0; n2 < n3; ++n2) {
if (!TypeToken.isAssignableFrom(object[n2], parameterizedType, new HashMap<String, Type>(map))) continue;
return true;
}
return TypeToken.isAssignableFrom(class_.getGenericSuperclass(), parameterizedType, new HashMap<String, Type>(map));
}
/** Generates the signature for the given constructor */
private String signature(Constructor<?> constructor) {
StringBuilder builder = new StringBuilder();
if (constructor.getTypeParameters().length > 0) {
builder.append('<');
for (TypeVariable<?> typeVariable : constructor.getTypeParameters()) {
builder.append(typeVariable.getName());
for (java.lang.reflect.Type bound : typeVariable.getBounds()) {
builder.append(':');
visitType(bound, builder);
}
}
builder.append('>');
}
builder.append('(');
for (java.lang.reflect.Type paramType : constructor.getGenericParameterTypes()) {
visitType(paramType, builder);
}
builder.append(")V");
for (java.lang.reflect.Type exceptionType : constructor.getGenericExceptionTypes()) {
builder.append('^');
visitType(exceptionType, builder);
}
return builder.toString();
}
@SuppressWarnings({"unchecked", "rawtypes"})
public final void parseArray(PBDeserializer parser, Type objectType, Collection array) {
Type itemType = this.itemType;
;
if (itemType instanceof TypeVariable && objectType instanceof ParameterizedType) {
TypeVariable typeVar = (TypeVariable) itemType;
ParameterizedType paramType = (ParameterizedType) objectType;
Class<?> objectClass = null;
if (paramType.getRawType() instanceof Class) {
objectClass = (Class<?>) paramType.getRawType();
}
int paramIndex = -1;
if (objectClass != null) {
for (int i = 0, size = objectClass.getTypeParameters().length; i < size; ++i) {
TypeVariable item = objectClass.getTypeParameters()[i];
if (item.getName().equals(typeVar.getName())) {
paramIndex = i;
break;
}
}
}
if (paramIndex != -1) {
itemType = paramType.getActualTypeArguments()[paramIndex];
}
}
if (deserializer == null) {
deserializer = parser.getDeserializer(itemType);
}
try {
// int tmpTag = parser.getTheCodedInputStream().readTag();
int tmpListItemCnt = parser.getTheCodedInputStream().readInt32();
for (int i = 0; i < tmpListItemCnt; i++) {
byte tmpIsNull = parser.getTheCodedInputStream().readRawByte();
if (tmpIsNull == 0) {
if (deserializer instanceof JavaObjectDeserializer) {
} else {
byte tmpType = parser.getTheCodedInputStream().readRawByte();
if (com.jd.glowworm.asm.Type.OBJECT == tmpType) {
if (deserializer
.getClass()
.getName()
.startsWith(ASMDeserializerFactory.DeserializerClassName_prefix)) {
parser.getTheCodedInputStream().readString();
}
}
}
Object val = deserializer.deserialze(parser, itemType, null);
array.add(val);
} else {
array.add(null);
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
private static void typeToString(StringBuilder sb, Type type, Set<Type> visited) {
if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
final Class<?> rawType = (Class<?>) parameterizedType.getRawType();
sb.append(rawType.getName());
boolean first = true;
for (Type typeArg : parameterizedType.getActualTypeArguments()) {
if (first) {
first = false;
} else {
sb.append(", ");
}
sb.append('<');
typeToString(sb, typeArg, visited);
sb.append('>');
}
} else if (type instanceof WildcardType) {
WildcardType wildcardType = (WildcardType) type;
sb.append('?');
// According to
// JLS(http://java.sun.com/docs/books/jls/third_edition/html/typesValues.html#4.5.1):
// - Lower and upper can't coexist: (for instance, this is not allowed: <? extends
// List<String> & super MyInterface>)
// - Multiple bounds are not supported (for instance, this is not allowed: <? extends
// List<String> & MyInterface>)
final Type bound;
if (wildcardType.getLowerBounds().length != 0) {
sb.append(" super ");
bound = wildcardType.getLowerBounds()[0];
} else {
sb.append(" extends ");
bound = wildcardType.getUpperBounds()[0];
}
typeToString(sb, bound, visited);
} else if (type instanceof TypeVariable<?>) {
TypeVariable<?> typeVariable = (TypeVariable<?>) type;
sb.append(typeVariable.getName());
// prevent cycles in case: <T extends List<T>>
if (!visited.contains(type)) {
visited.add(type);
sb.append(" extends ");
boolean first = true;
for (Type bound : typeVariable.getBounds()) {
if (first) {
first = false;
} else {
sb.append(" & ");
}
typeToString(sb, bound, visited);
}
visited.remove(type);
}
} else if (type instanceof GenericArrayType) {
GenericArrayType genericArrayType = (GenericArrayType) type;
typeToString(genericArrayType.getGenericComponentType());
sb.append(genericArrayType.getGenericComponentType());
sb.append("[]");
} else if (type instanceof Class) {
Class<?> typeClass = (Class<?>) type;
sb.append(typeClass.getName());
} else {
throw new IllegalArgumentException("Unsupported type: " + type);
}
}
private String nameFor(TypeVariable<?> variable) {
return StringUtils.lowercaseFirst(variable.getName());
}
protected void _resolveBindings(Type t) {
if (t == null) return;
Class<?> raw;
if (t instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) t;
Type[] args = pt.getActualTypeArguments();
if (args != null && args.length > 0) {
Class<?> rawType = (Class<?>) pt.getRawType();
TypeVariable<?>[] vars = rawType.getTypeParameters();
if (vars.length != args.length) {
throw new IllegalArgumentException(
"Strange parametrized type (in class "
+ rawType.getName()
+ "): number of type arguments != number of type parameters ("
+ args.length
+ " vs "
+ vars.length
+ ")");
}
for (int i = 0, len = args.length; i < len; ++i) {
TypeVariable<?> var = vars[i];
String name = var.getName();
if (_bindings == null) {
_bindings = new LinkedHashMap<String, JavaType>();
} else {
/* 24-Mar-2010, tatu: Better ensure that we do not overwrite something
* collected earlier (since we descend towards super-classes):
*/
if (_bindings.containsKey(name)) continue;
}
// first: add a placeholder to prevent infinite loops
_addPlaceholder(name);
// then resolve type
_bindings.put(name, _typeFactory._constructType(args[i], this));
}
}
raw = (Class<?>) pt.getRawType();
} else if (t instanceof Class<?>) {
raw = (Class<?>) t;
/* [JACKSON-677]: If this is an inner class then the generics are defined on the
* enclosing class so we have to check there as well. We don't
* need to call getEnclosingClass since anonymous classes declare
* generics
*/
_resolveBindings(raw.getDeclaringClass());
/* 24-Mar-2010, tatu: Can not have true generics definitions, but can
* have lower bounds ("<T extends BeanBase>") in declaration itself
*/
TypeVariable<?>[] vars = raw.getTypeParameters();
if (vars != null && vars.length > 0) {
JavaType[] typeParams = null;
if (_contextType != null && raw.isAssignableFrom(_contextType.getRawClass())) {
typeParams = _typeFactory.findTypeParameters(_contextType, raw);
}
for (int i = 0; i < vars.length; i++) {
TypeVariable<?> var = vars[i];
String name = var.getName();
Type varType = var.getBounds()[0];
if (varType != null) {
if (_bindings == null) {
_bindings = new LinkedHashMap<String, JavaType>();
} else { // and no overwriting...
if (_bindings.containsKey(name)) continue;
}
_addPlaceholder(name); // to prevent infinite loops
if (typeParams != null) {
_bindings.put(name, typeParams[i]);
} else {
_bindings.put(name, _typeFactory._constructType(varType, this));
}
}
}
}
} else { // probably can't be any of these... so let's skip for now
// if (type instanceof GenericArrayType) {
// if (type instanceof TypeVariable<?>) {
// if (type instanceof WildcardType) {
return;
}
// but even if it's not a parameterized type, its super types may be:
_resolveBindings(raw.getGenericSuperclass());
for (Type intType : raw.getGenericInterfaces()) {
_resolveBindings(intType);
}
}
XTypeVariable(XTypeFactory typeFactory, TypeVariable typeVariable) {
_typeFactory = typeFactory;
_typeVariable = typeVariable;
_name = typeVariable.getName();
}
private GenericsType configureTypeVariableDefinition(TypeVariable tv) {
return configureTypeVariableDefinition(
configureTypeVariableReference(tv.getName()), configureTypes(tv.getBounds()));
}
