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.spi.Injector;
020    import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
021    import org.springframework.context.ConfigurableApplicationContext;
022    
023    /**
024     * A Spring implementation of {@link Injector} allowing Spring to be used to dependency inject newly created POJOs
025     *
026     * @version $Revision: 782973 $
027     */
028    public class SpringInjector implements Injector {
029        private final ConfigurableApplicationContext applicationContext;
030    
031        public SpringInjector(ConfigurableApplicationContext applicationContext) {
032            this.applicationContext = applicationContext;
033        }
034    
035        public <T> T newInstance(Class<T> type) {
036            // use the createBean method with 3 arguments as it exist in Spring 2.0.x as well.
037            // this allows us to be compatible with Spring 2.0 also, and not only 2.5.
038            Object value = applicationContext.getBeanFactory().createBean(type, AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR, false);
039            return type.cast(value);
040        }
041    
042    }