/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.utils.reflect;
import com.badlogic.gdx.utils.GdxRuntimeException;
import com.badlogic.gwtref.client.ReflectionCache;
import com.badlogic.gwtref.client.Type;
/** Utilities for Class reflection.
* @author nexsoftware */
public final class ClassReflection {
/** Returns the Class object associated with the class or interface with the supplied string name. */
static public Class forName (String name) throws ReflectionException {
try {
return ReflectionCache.forName(name).getClassOfType();
} catch (ClassNotFoundException e) {
throw new ReflectionException("Class not found: " + name);
}
}
/** Returns the simple name of the underlying class as supplied in the source code. */
static public String getSimpleName(Class c) {
return c.getName();
}
/** Determines if the supplied Object is assignment-compatible with the object represented by supplied Class. */
static public boolean isInstance (Class c, Object obj) {
return isAssignableFrom(c, obj.getClass());
}
/** Determines if the class or interface represented by first Class parameter is either the same as, or is a superclass or
* superinterface of, the class or interface represented by the second Class parameter. */
static public boolean isAssignableFrom (Class c1, Class c2) {
Type c1Type = ReflectionCache.getType(c1);
Type c2Type = ReflectionCache.getType(c2);
return c2Type.isAssignableFrom(c1Type);
}
/** Returns true if the class or interface represented by the supplied Class is a member class. */
static public boolean isMemberClass (Class c) {
return ReflectionCache.getType(c).isMemberClass();
}
/** Returns true if the class or interface represented by the supplied Class is a static class. */
static public boolean isStaticClass (Class c) {
return ReflectionCache.getType(c).isStatic();
}
/** Creates a new instance of the class represented by the supplied Class. */
static public <T> T newInstance (Class<T> c) throws ReflectionException {
return (T)ReflectionCache.getType(c).newInstance();
}
/** Returns an array of {@link Constructor} containing the public constructors of the class represented by the supplied Class. */
static public Constructor[] getConstructors (Class c) {
throw new GdxRuntimeException("Not implemented.");
}
/** Returns a {@link Constructor} that represents the public constructor for the supplied class which takes the supplied parameter types. */
static public Constructor getConstructor (Class c, Class... parameterTypes) throws ReflectionException {
throw new GdxRuntimeException("Not implemented.");
}
/** Returns a {@link Constructor} that represents the constructor for the supplied class which takes the supplied parameter types. */
static public Constructor getDeclaredConstructor (Class c, Class... parameterTypes) throws ReflectionException {
throw new GdxRuntimeException("Not implemented.");
}
/** Returns an array of {@link Method} containing the public member methods of the class represented by the supplied Class. */
static public Method[] getMethods (Class c) {
com.badlogic.gwtref.client.Method[] methods = ReflectionCache.getType(c).getMethods();
Method[] result = new Method[methods.length];
for (int i = 0, j = methods.length; i < j; i++) {
result[i] = new Method(methods[i]);
}
return result;
}
/** Returns a {@link Method} that represents the public member method for the supplied class which takes the supplied parameter types. */
static public Method getMethod (Class c, String name, Class... parameterTypes) throws ReflectionException {
try {
return new Method(ReflectionCache.getType(c).getMethod(name, parameterTypes));
} catch (SecurityException e) {
throw new ReflectionException("Security violation while getting method: " + name + ", for class: " + c.getName(), e);
} catch (NoSuchMethodException e) {
throw new ReflectionException("Method not found: " + name + ", for class: " + c.getName(), e);
}
}
/** Returns an array of {@link Method} containing the methods declared by the class represented by the supplied Class. */
static public Method[] getDeclaredMethods (Class c) {
com.badlogic.gwtref.client.Method[] methods = ReflectionCache.getType(c).getDeclaredMethods();
Method[] result = new Method[methods.length];
for (int i = 0, j = methods.length; i < j; i++) {
result[i] = new Method(methods[i]);
}
return result;
}
/** Returns a {@link Method} that represents the method declared by the supplied class which takes the supplied parameter types. */
static public Method getDeclaredMethod (Class c, String name, Class... parameterTypes) throws ReflectionException {
try {
return new Method(ReflectionCache.getType(c).getMethod(name, parameterTypes));
} catch (SecurityException e) {
throw new ReflectionException("Security violation while getting method: " + name + ", for class: " + c.getName(), e);
} catch (NoSuchMethodException e) {
throw new ReflectionException("Method not found: " + name + ", for class: " + c.getName(), e);
}
}
/** Returns an array of {@link Field} containing the public fields of the class represented by the supplied Class. */
static public Field[] getFields (Class c) {
com.badlogic.gwtref.client.Field[] fields = ReflectionCache.getType(c).getFields();
Field[] result = new Field[fields.length];
for (int i = 0, j = fields.length; i < j; i++) {
result[i] = new Field(fields[i]);
}
return result;
}
/** Returns a {@link Field} that represents the specified public member field for the supplied class. */
static public Field getField (Class c, String name) throws ReflectionException {
try {
return new Field(ReflectionCache.getType(c).getField(name));
} catch (SecurityException e) {
throw new ReflectionException("Security violation while getting field: " + name + ", for class: " + c.getName(), e);
}
}
/** Returns an array of {@link Field} objects reflecting all the fields declared by the supplied class. */
static public Field[] getDeclaredFields (Class c) {
com.badlogic.gwtref.client.Field[] fields = ReflectionCache.getType(c).getDeclaredFields();
Field[] result = new Field[fields.length];
for (int i = 0, j = fields.length; i < j; i++) {
result[i] = new Field(fields[i]);
}
return result;
}
/** Returns a {@link Field} that represents the specified declared field for the supplied class. */
static public Field getDeclaredField (Class c, String name) throws ReflectionException {
try {
return new Field(ReflectionCache.getType(c).getField(name));
} catch (SecurityException e) {
throw new ReflectionException("Security violation while getting field: " + name + ", for class: " + c.getName(), e);
}
}
}