001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.util; 018 019import org.apache.camel.IsSingleton; 020import org.apache.camel.spi.Injector; 021 022/** 023 * A simple implementation of {@link Injector} which just uses reflection to 024 * instantiate new objects using their zero argument constructor. For more 025 * complex implementations try the Spring or Guice implementations. 026 * 027 * @version 028 */ 029public class ReflectionInjector implements Injector { 030 031 public <T> T newInstance(Class<T> type) { 032 return ObjectHelper.newInstance(type); 033 } 034 035 public <T> T newInstance(Class<T> type, Object instance) { 036 if (instance instanceof IsSingleton) { 037 boolean singleton = ((IsSingleton) instance).isSingleton(); 038 if (singleton) { 039 return type.cast(instance); 040 } 041 } 042 return newInstance(type); 043 } 044 045 @Override 046 public boolean supportsAutoWiring() { 047 return false; 048 } 049}