/**
* Copyright 2006-2013 the original author or authors.
*
* 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 org.objenesis.instantiator.sun;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.objenesis.ObjenesisException;
import org.objenesis.instantiator.ObjectInstantiator;
/**
* Helper methods providing access to {@link sun.reflect.ReflectionFactory} via reflection, for use
* by the {@link ObjectInstantiator}s that use it.
*
* @author Henri Tremblay
*/
@SuppressWarnings("restriction")
class SunReflectionFactoryHelper {
@SuppressWarnings("unchecked")
public static <T> Constructor<T> newConstructorForSerialization(Class<T> type,
Constructor<?> constructor) {
Class<?> reflectionFactoryClass = getReflectionFactoryClass();
Object reflectionFactory = createReflectionFactory(reflectionFactoryClass);
Method newConstructorForSerializationMethod = getNewConstructorForSerializationMethod(
reflectionFactoryClass);
try {
return (Constructor<T>) newConstructorForSerializationMethod.invoke(
reflectionFactory, type, constructor);
}
catch(IllegalArgumentException e) {
throw new ObjenesisException(e);
}
catch(IllegalAccessException e) {
throw new ObjenesisException(e);
}
catch(InvocationTargetException e) {
throw new ObjenesisException(e);
}
}
private static Class<?> getReflectionFactoryClass() {
try {
return Class.forName("sun.reflect.ReflectionFactory");
}
catch(ClassNotFoundException e) {
throw new ObjenesisException(e);
}
}
private static Object createReflectionFactory(Class<?> reflectionFactoryClass) {
try {
Method method = reflectionFactoryClass.getDeclaredMethod(
"getReflectionFactory");
return method.invoke(null);
}
catch(NoSuchMethodException e) {
throw new ObjenesisException(e);
}
catch(IllegalAccessException e) {
throw new ObjenesisException(e);
}
catch(IllegalArgumentException e) {
throw new ObjenesisException(e);
}
catch(InvocationTargetException e) {
throw new ObjenesisException(e);
}
}
private static Method getNewConstructorForSerializationMethod(Class<?> reflectionFactoryClass) {
try {
return reflectionFactoryClass.getDeclaredMethod(
"newConstructorForSerialization", Class.class, Constructor.class);
}
catch(NoSuchMethodException e) {
throw new ObjenesisException(e);
}
}
}