| /** |
| * Copyright (C) 2006 Google Inc. |
| * |
| * 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.google.inject; |
| |
| import com.google.inject.internal.GuiceFastClass; |
| import com.google.inject.internal.Objects; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Modifier; |
| import net.sf.cglib.reflect.FastClass; |
| import net.sf.cglib.reflect.FastConstructor; |
| |
| /** |
| * Default {@link ConstructionProxyFactory} implementation. Simply invokes the |
| * constructor. Can be reused by other {@code ConstructionProxyFactory} |
| * implementations. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| class DefaultConstructionProxyFactory implements ConstructionProxyFactory { |
| |
| public <T> ConstructionProxy<T> get(final Constructor<T> constructor) { |
| // We can't use FastConstructor if the constructor is private or protected. |
| if (Modifier.isPrivate(constructor.getModifiers()) |
| || Modifier.isProtected(constructor.getModifiers())) { |
| constructor.setAccessible(true); |
| return new ConstructionProxy<T>() { |
| public T newInstance(Object... arguments) throws |
| InvocationTargetException { |
| try { |
| return constructor.newInstance(arguments); |
| } |
| catch (InstantiationException e) { |
| throw new RuntimeException(e); |
| } |
| catch (IllegalAccessException e) { |
| throw new AssertionError(e); |
| } |
| } |
| }; |
| } |
| |
| Class<T> classToConstruct = constructor.getDeclaringClass(); |
| FastClass fastClass = GuiceFastClass.create(classToConstruct); |
| final FastConstructor fastConstructor |
| = fastClass.getConstructor(constructor); |
| return new ConstructionProxy<T>() { |
| @SuppressWarnings("unchecked") |
| public T newInstance(Object... arguments) |
| throws InvocationTargetException { |
| return (T) fastConstructor.newInstance(arguments); |
| } |
| }; |
| } |
| } |