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Weld support for Java SE

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/**
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * 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.jboss.weld.environment.se.util;

/**
 * Reflection utilities
 * 
 * @author Pete Muir
 * 
 */
public abstract class Reflections
{

   private Reflections()
   {
      // TODO Auto-generated constructor stub
   }

   public static  T newInstance(String className, Class expectedType) throws InstantiationException, IllegalAccessException, ClassNotFoundException
   {
      return loadClass(className, expectedType).newInstance();
   }

   public static  Class loadClass(String className, Class expectedType) throws ClassNotFoundException
   {
      if (Thread.currentThread().getContextClassLoader() != null)
      {
         return Thread.currentThread().getContextClassLoader().loadClass(className).asSubclass(expectedType);
      }
      else
      {
         return Class.forName(className).asSubclass(expectedType);
      }
   }

   public static ClassLoader getClassLoader()
   {
      if (Thread.currentThread().getContextClassLoader() != null)
      {
         return Thread.currentThread().getContextClassLoader();
      }
      else
      {
         return Reflections.class.getClassLoader();
      }
   }

}