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 }