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 */ 017 package org.apache.camel.spring.spi; 018 019 import org.apache.camel.IsSingleton; 020 import org.apache.camel.spi.Injector; 021 import org.springframework.beans.factory.config.AutowireCapableBeanFactory; 022 import org.springframework.context.ConfigurableApplicationContext; 023 024 /** 025 * A Spring implementation of {@link Injector} allowing Spring to be used to dependency inject newly created POJOs 026 * 027 * @version $Revision: 752893 $ 028 */ 029 public class SpringInjector implements Injector { 030 private final ConfigurableApplicationContext applicationContext; 031 private int autowireMode = AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR; 032 private boolean dependencyCheck; 033 034 public SpringInjector(ConfigurableApplicationContext applicationContext) { 035 this.applicationContext = applicationContext; 036 } 037 038 public <T> T newInstance(Class<T> type) { 039 // TODO support annotations for mandatory injection points? 040 Object value = applicationContext.getBeanFactory().createBean(type, autowireMode, dependencyCheck); 041 return type.cast(value); 042 } 043 044 public <T> T newInstance(Class<T> type, Object instance) { 045 if (instance instanceof IsSingleton) { 046 boolean singleton = ((IsSingleton) instance).isSingleton(); 047 if (singleton) { 048 return type.cast(instance); 049 } 050 } 051 return newInstance(type); 052 } 053 054 public int getAutowireMode() { 055 return autowireMode; 056 } 057 058 public void setAutowireMode(int autowireMode) { 059 this.autowireMode = autowireMode; 060 } 061 062 public boolean isDependencyCheck() { 063 return dependencyCheck; 064 } 065 066 public void setDependencyCheck(boolean dependencyCheck) { 067 this.dependencyCheck = dependencyCheck; 068 } 069 }